СПОСОБ КОДИРОВАНИЯ ДВИЖУЩЕГОСЯ ИЗОБРАЖЕНИЯ

Изобретение относится к системам кодирования движущегося изображения, в частности к способам кодирования движущегося изображения в режиме межкадрового предсказания и в режиме прямого предсказания с использованием удаленного по времени опорного кадра. Сущность изобретения состоит в том, что Р-кадр кодируют в режиме межкадрового предсказания в соответствии со сменой сцены. Векторы движения в режиме прямого предсказания определяют и кодируют в соответствии с типом опорного кадра, указанного вектором движения смещенного блока в заданном кадре. Технический результат заключается в повышении эффективности кодирования последовательности движущихся изображений в режиме межкадрового предсказания и в режиме прямого предсказания для Р-кадра с использованием удаленного по времени опорного кадра. 2 н. и 7 з.п. ф-лы, 6 ил.

ОБНАРУЖЕНИЕ ФОРМАТА ТРЕХМЕРНОГО ВИДЕО

... 1. Видеоустройство (50) для обработки видеосигнала, содержащее приемное средство (51,58,59) для приема видеосигнала, содержащего видеоданные, представляющие либо контент трехмерного видео [3D], форматированный в соответствии с форматом 3D, либо контент двумерного видео [2D], форматированный в соответствии с форматом 2D,при этом формат 3D содержит по меньшей мере два подкадра 3D, чтобы составлять один кадр 3D, и является одним форматом из набора возможных форматов 3D,процессор (52) для обеспечения сигнала состояния 3D, указывающего формат видеосигнала, при этом процессор выполнен с возможностьювыполнять определение соответственных показателей форматов для ряда возможных форматов 3D путем обработки видеоданных согласно соответственным заранее заданным характеристикам формата для получения и сравнения соответственных подкадров 3D, каковое определение соответственных показателей форматов для ряда возможных форматов 3D организуется в заранее заданном порядке следования, иустанавливать сигнал ...

УСТРОЙСТВО ОБРАБОТКИ ИНФОРМАЦИИ, СПОСОБ РАЗРЕЗАНИЯ ДВИЖУЩЕГОСЯ ИЗОБРАЖЕНИЯ И ПРОГРАММА РАЗРЕЗАНИЯ ДВИЖУЩЕГОСЯ ИЗОБРАЖЕНИЯ

... 1. Устройство обработки информации, содержащее:блок получения движущегося изображения для получения движущегося изображения во время формирования изображения;блок получения события для получения данных события, которые представляют собой информацию, указывающую сцену каждого кадра движущегося изображения, получаемого блоком получения движущегося изображения;блок генерирования сигнала разрезания для генерирования сигнала разрезания в случае, если данные события, получаемые с помощью блока получения события, удовлетворяют заданному условию;блок разрезания движущегося изображения для разрезания движущегося изображения на заданном участке на основе сигнала разрезания; иблок памяти для хранения движущегося изображения, разрезаемого с помощью блока разрезания движущегося изображения.2. Устройство обработки информации по п.1, в котором блок разрезания движущегося изображения выполнен с возможностью разрезания движущегося изображения в положении кадра, соответствующего моменту времени ввода сигнала ...

Einrichtung zur Verwaltung von Bewegtbildsequenzen

Bildverarbeitungsvorrichtung, Bildverarbeitungsverfahren und Bildverarbeitungsprogramm

COLOR CORRECTION METHOD

Deletion of Recorded Television Signal after Detection of Credits

A method of deleting a recording of a television signal S6, or displaying a graphical user interface (GUI) to allow a user to decide whether or not to delete the recording (figure 3), when playback of the recording is stopped by the user S3 before the end of the recording and a credits sequence has been detected S4. When the credits sequence has been detected S4 this indicates that the user has watched the entire program, and may therefore want to delete the recording. The credits sequence may be detected by detecting scrolling text, text against a uniform background or text containing certain words e.g. "director", and detection may only occur during a last portion of the recording for example during the last 26% or 15 minutes of the recording. The credits sequence may be detected during reproduction of the recording, or may be detected at some other time e.g. the time at which the recording is stored, in which case the time of the credits sequence is stored and compared with the time ...

Digital image processing

Video Surveillance System that Detects Changes by Comparing a Current Image with a Reference Image

Video processing apparatus comprises an image buffer 40 to store data relating to images of a video signal captured over a reference period relative to a current image; a comparator 100 to compare the current image with a reference image of the video signal captured within the reference period, so as to detect image features in the current image which represent image changes with respect to a corresponding position in the reference image; a detector 110 to detect whether a detected image feature in the current image has remained at substantially the same image position over a group of images comprising at least a threshold number of images of the video signal preceding the current image and a display arrangement to display the current image with an indication of any such image features and an indication of the duration of the presence of the image feature in respect of that image position.

VIDEO COLOUR DETECTOR & CHROMA KEY DEVICE & METHOD

Scene change detection

Determining a regional shot change parameter

DEVICE AND PROCEDURE FOR THE LOCALIZATION OF ADVERTISEMENT IN A VIDEO DATA STREAM

SYSTEM, PROCEDURE AND COMPUTER-READABLE MEDIUM FOR THE ANNOUNCEMENT OF LIGHT RADIATION

CONTENTS-STEERED TRANSCODER, WHICH ORCHESTRIERT THE MULTIMEDIA TRANSCODIERUNG USING CONTENTS INFORMATION

BROADCAST PROGRAM INDICATOR AND PROCEDURE

PROCEDURE FOR THE CHANGE OF SCENE AND CROSS FADE DETECTION FOR VIDEO SEQUENCE INDEXATION

VIDEO SIGNAL PROCESSING

Apparatus for generating content codes for audiovisual programs

TIME COMPRESSING VIDEO CONTENT

Methods and systems for compressing video content are presented. The methods and systems include analyzing a sequence of media frames stored in the memory device and calculating a displacement level of each of the media frames. The displacement level indicates how different each of the media frames is to a previous media frame. The sequence of media frames is divided into a plurality of cuts where each cut ends at a media frame having a substantially high displacement level Frames to be removed from the sequence of media frames are identified in each cut based upon the frame's displacement level. The identified frames are then removed.

DETECTION OF SOLID COLOR FRAMES FOR DETERMINING TRANSITIONS IN VIDEO CONTENT

Particular embodiments detect a solid color frame, such as a black frame, that may include visible content other than the solid color in a portion of the frame. These frames may conventionally not be detected as a solid color frame because of the visible content in the portion of the frame. However, these solid color frames may be functional black or white frames, in that the solid color frames are performing the function of the solid color frame even though the frames include the visible content. The visible content may be content that may always be displayed on the screen even if the video content is transitioning to an advertisement. Particular embodiments use techniques to detect the functional solid color frames even when visible content appears in the solid color frames. Particular embodiments use color layout information and edge distribution information to detect solid color frames.

DETECTING OF GRAPHICAL OBJECTS TO IDENTIFY VIDEO DEMARCATIONS

Particular embodiments analyze logos found in a video program to determine video demarcations in the video program. For example, a video demarcation may be content that marks ("marker content") a transition from a first video content type to a second video content type. Marker content may be used so the user knows that a transition is occurring. Particular embodiments analyze the logos found in a video program to determine the video demarcations in the video. The video is first analyzed to determine logos in the video program. Once these logos are determined, particular embodiments may re-analyze the video program to identify marker frames that include the marker content that signal the transitions to a different video content types. The marker frames may be determined without any prior knowledge of the marker content. Then, particular embodiments may use the marker frames to determine video segments.

ACCURATE DETECTION OF A DRASTICAL CHANGE BETWEEN SUCCESSIVE PICTURES

On detecting a drastical change, such as a scene change, between current and previous ones of successive pictures which are represented by a digital video signal and each of which comprises a predetermined number of picture elements, the digital video signal is processed by using correlations between the picture elements within each of the successive pictures to produce a processed signal which represents processed results for each of the successive pictures. A statistical distribution of the processed results is calculated from the processed signal. The statistical distribution of the processed results in the current picture is collated with the statistical distribution of the processed results in the previous picture to be produced as a change detection signal representative of the drastical change with reference to a relationship between the statistical distribution of the processed results in the current picture and the statistical distribution of the processed results in the previous ...

VIDEO SIGNAL PROCESSING

Cuts in a video signal are detected by first measuring a correlation parameter between successive images; this can be the sum of the maximum peak heights for each of 16 to 100 or more blocks in a block-based phase correlation procedure. An averaged value of this correlation parameter is maintained and the current measurement of the correlation parameter is compared with the averaged value. The presence of a cut is inferred where the current measurement drops beneath, say, 50 % of the average value.

IMAGE PROCESSING DEVICE AND METHOD

An image signal converting apparatus for converting a first image signal into a second image signal, where the first and second image signals include a plurality of pictures of different frames. A motion detector is operable to detect motion of the first image signal between a first frame and a second frame, and processing circuitry produces the second image signal based on an assumption of a pixel at a position corresponding to the detected motion, The apparatus may be employed to produce an output signal of either the same resolution as the first image signal with aliasing distortion reduced or eliminated, or with higher resolution in vertical and/or horizontal directions.

METHOD OF PROCESSING A VIDEO STREAM

A method of processing a video stream, involves contemporaneously selecting first and second pairs of frames in the video stream with a predetermined period . The second pairs of frames have a longer period than the first pair. For each of the first and second pairs of frames, there is determined a difference value representing the number of pixels whose value has changed between the first and second frames of the pair. A particular logic level is generated depending on whether this difference value e xceeds a predetermined threshold. The generated logic levels are then compared with a dec ision map to identify cuts in the video stream ...

A METHOD AND DEVICE FOR DETECTING FLICKERS IN TELEVISION PICTURES

A device that calculates a field difference by ROM and also a correlation between the calculated result and the delayed calculated result by ROM to detect one shot of flicker, and which uses a personal computer to examine the continued occurrence of the flicker-containing scene to make a final decision of the presence or absence of the flicker.

PARTIAL DECODING OF COMPRESSED VIDEO SEQUENCES

Compressed video sequences generated using a (e.g., DCT) transform are partially decoded (202) to recover (204) the low-frequency transform coefficients (e.g., only the DC coefficients) from the encoded bitstream. Th e low-frequency coefficients are then used to generate blocks of image data th at are subjected to motion-compensated inter-frame addition (206) to generate partially decoded images that can be used for subsequent processing, such as histogram analysis (208) for video parsing. The present invention avoids having to perform the computationally expensive inverse transform operations , while still achieving satisfactory results.

DETECTION OF TRANSITIONS IN VIDEO SEQUENCES

Frame dissimilarity measure (FDM) values are generated (102) for pairs of frames in a video sequence that are separated by a specified timing window size, where each FDM value is the ratio of a net dissimilarity measure and a cumulative dissimilarity measure. In one embodiment, a first threshold condition (110) is applied to identify peaks in the FDM data that could correspond to transitions between shots in a video sequence. A second threshold condition (116) is applied to the FDM data adjacent to the detected peaks to identify frames at the start and end of the transition. The first threshold condition determines whether the FDM values exceed a first specified threshold level, while the second threshold condition determines whether the FDM values fall below a second specified threshold level. The net and cumulative dissimilarity measures may be based on histograms for the two frames. The present invention is effective in detecting gradual transitions between shots, such as wipes, dissolves ...

Method and device for approximating a DC coefficient of a block of pixels of a frame

A method and a device for approximating a DC coefficient of a first block of pixels of a first frame are proposed. The method comprises: calculating a luminance DC average value based on DC coefficients of first frame's macro-blocks without an approximation error; and determining the DC coefficient of the first block based on the DC coefficient of a second block, wherein the second block is a part of a second frame, which is a reference frame of the first frame, the second block overlapping with a reference block of the first block and having the closest DC coefficient to the luminance DC average value.

Gradual video sequence transition detecting method for video coder/decoder, involves calculating criteria indicating if one distance is greater than another distance and making decision on image belongingness to transition based on criteria

L'invention concerne un procédé et un dispositif de détection de transitions au sein d'une séquence vidéo. Le procédé comprend une étape de détection de transitions graduelles comprenant les étapes suivantes, pour chaque image It-k comprise dans ladite séquence vidéo et de rang temporel de traitement t-k, avec k un entier positif supérieur ou égal à un : calcul d'une première distance C1, entre ladite image It-k et une image moyenne Im, ladite image moyenne Im résultant d'un calcul de moyenne entre une image It et une image It-2k; calcul d'une deuxième distance C2, entre lesdites images It-k et It, ou entre lesdites images It-k et It-2k; calcul d'un critère C indiquant si ladite deuxième distance C2 est significativement supérieure à ladite première distance C1 ; décision, en fonction dudit critère C, sur l'appartenance de l'image It-k à une transition graduelle.

Video sequence plan transformation detection process for video sequence indexing, involves comparing peak signal-to-noise ratio coefficient with threshold to decide existence of fading in video sequence

L'invention concerne un procédé de détection d'un changement de plan dans une séquence vidéo formée d'images successives. Ce procédé comprend une étape de détection grossière d'un fondu comprenant les étapes suivantes : - obtention d'un champ continu de vecteurs mouvement représentatif d'un mouvement en avant depuis une image courante vers une image suivante de la séquence ; - calcul d'un premier coefficient de ressemblance (PSNR1), à partir dudit champ de vecteurs mouvement, entre l'image suivante et une image suivante compensée obtenue à partir de l'image courante et du champ de vecteurs mouvement ; - décision intermédiaire sur l'existence ou non d'un fondu, par comparaison dudit premier coefficient de ressemblance avec au moins un seuil.

제어결과 시각적 확인 방법 및 그 장치

... 제어결과 시각적 확인 방법 및 그 장치가 개시된다. 제어장치는 서버의 제어명령을 상기 저전력광역통신망을 통해 수신하면, 제어명령의 수행 후 제어장치의 화면을 촬영하여 저전력광역통신망의 유효 전송률 이하의 비트율로 전송한다.

APPARATUS FOR PROCESSING IMAGE, METHOD FOR PROCESSING AN IMAGE, AND COMPUTER-READABLE RECORDING MEDIUM HAVING AN IMAGE PROCESSING PROGRAM, ESPECIALLY REGARDING TO REDUCING FLICKERING OF SCREEN WITH SIMPLE CONSTITUTION

PURPOSE: An apparatus for processing an image, a method for processing an image, and a computer-readable recording medium having an image processing program are provided to simplify constitution and display a clear image in converting a scene. CONSTITUTION: A statistical value operating element(10) performs statistical processing to image data for generating statistical value data representing statistical values. A scene detecting element detects conversion of a scene based on the image data. A compensating parameter operating element(20) performs weight granting to the statistical value data of a plurality of frames for operating compensating parameters. An image compensating element(30) processes image compensation to the image data based on the compensating parameters. © KIPO 2005 ...

PROGRAM DATA PROCESSING DEVICE, METHOD, AND PROGRAM

미디어 전송 및 저장을 위한 비디오 주사 포맷의 캡슐화

... 본 발명은 미디어 전송 또는 미디어 저장을 위해 비디오 데이터에 비디오 주사 포맷 정보를 첨부하는 방법과 장치를 제공하며, 이에 따라, 비디오 데이터에 대하여 효과적인 압축, 압축 해제 및 디스플레이할 수 있다. 해당 정보는 디스크립터의 형식 또는 데이터 구조의 형식으로 미디어 전송 또는 저장 포맷 헤더에 첨부된다.

SYSTEM AND A METHOD FOR DETECTING A SCROLLING TEXT IN A MIXED MODE FILM AND VIDEO BY USING A SCROLLING TEXT DETECTING UNIT

PURPOSE: A system and a method for detecting a scrolling text in a mixed mode film and video are provided to detect the scrolling text more accurately in a mixed mode video sequence and compensate motion vibration occurring in the scrolling text, thereby more smoothly reproducing a video sequence. CONSTITUTION: A system for detecting a scrolling text comprises a de-interlacing unit and a scrolling text detection unit(450). The de-interlacing unit receives a 3:2 pulldown film and a mixed mode video sequence including a mixed scrolling text. The de-interlacing unit de-interlaces even and odd fields to generate a progressive-scan mixed mode video sequence. The 3:2 pulldown film alternatively exchanges three fields with two fields. The scrolling text detection unit comprises a motion estimation unit(410), an extraction frame motion analysis unit(420) and a consecutive frame motion analysis unit(430). The motion estimation unit generates a plurality of motion vectors between blocks of at least ...

METHOD OF DETERMINING A MOTION VECTOR TO IMPROVE CODING EFFICIENCY

PURPOSE: A method of determining a motion vector is provided to improve coding efficiency by using a long-term reference picture and to reduce quantity of bits through an inter mode in case of a picture where a scene is changed. CONSTITUTION: Motion vectors of a current image block are determined. A motion vector of an image block located at the same position as the current image block is obtained. The motion vectors of the current image block are determined based on a type of a reference picture which the obtained motion vector indicates. © KIPO 2006 ...

Method for video content complexity estimation, scene change detection and video encoding

METHOD AND ALGORITHM FOR DETECTION OF SCENE CUTS OR SIMILAR IMAGES IN VIDEO IMAGES

A method for detecting scene cuts and similar pictures in a video sequence, including receiving pictures in a video sequence, extracting a set of features from two temporally consecutive pictures, computing a sum of square errors for the set of features with respect to the features of the previous picture, determining whether the error exceeds a predefined threshold and in response to the error exceeding the predefined threshold, detecting a scene change, and determining whether the error is less than a certain threshold thus detecting a similar picture has been found.

IMAGE PROCESSOR

From a moving image selected by a user, moving image information including a time length of the moving image and the number of change points of clips in the moving image is acquired. Layout data showing a design (the number, size, layout and the like of plural frame images configuring moving image) of a still image to be generated is selectively read from a memory based on the acquired moving image information. A still image in which predetermined frame images are arranged based on the layout data is generated and output. The predetermined frame images are automatically set in accordance with setting rules that are different depending on whether or not there is data concerning a highlight frame whose size is larger than that of other frame images in the layout data. The highlight frame may be also designated.

APPARATUS FOR GENERATING CONTENT CODES FOR AUDIOVISUAL PROGRAMS

An apparatus (10) for generating content codes for the scenes of a program includes a scene detector (18) that detects the start of new scene, and a selector that allows a viewer to enter one or more content codes for the scene. The content code(s) and data identifying the scene are then stored for later use. The apparatus (10) also includes a new-scene indicator (26) that is activated when a new scene begins and is then deactivated after content code(s) have been inputted for the scene.

DISPLAY APPARATUS AND CONTROL METHOD

When a plenty of television receivers are connected to one another, it is possible to realize a higher function than when each of the receivers is used alone. When a television broadcast program is displayed on a parent apparatus (television receiver) (1), its characteristic is detected. Furthermore, in the parent apparatus (1), a scene change is detected from the characteristic of the television broadcast program and a child apparatus (television receiver) 211 is controlled so as to display image data of the frame immediately after the scene change. The child apparatus 211 displays the frame immediately after the scene change. After this, when a scene change is generated in the image data displayed on the parent apparatus (1), the image data of the frame immediately after the scene change is displayed on the child apparatus 211 to replace the image data which has been displayed. The present invention can be applied to a television receiver, for example.

CONTENT PROVIDING DEVICE, CONTENT PROVIDING METHOD, AND COMPUTER PROGRAM PRODUCT

According to an embodiment, a content providing device includes a detector, a determination processor, a generator, and a communicating unit. The detector is configured to detect update objects included in a content to be displayed across a plurality of display devices. The update objects are dynamically updated. The determination processor is configured to determine update order in which the update objects are updated. The generator is configured to generate update order information when there is a change in the update order. The update order information includes the update order and information indicating the update objects. The communicating unit is configured to deliver the content to the display devices, and deliver the update order information to the display devices when there is a change in the update order.

RECURSIVE NOISE REDUCTION SYSTEM AND METHOD FOR FILM-BASED VIDEO

Embodiments of the present invention are directed to a system and method for recursive noise reduction. An exemplary method comprises receiving a first film frame having a first frame rate and a second film frame having the first frame rate and converting the first film frame into a first plurality of video frames having a second frame rate. The exemplary method further comprises converting the second film frame into a second plurality of video frames having the second frame rate, wherein the first plurality of video frames is positioned adjacent the second plurality of video frames at a border between the first plurality of video frames and the second plurality of video frames and updating a noise reduction correction signal only on the border between the first plurality of video frames and the second plurality of video frames when operating in a first mode.

Brightness Adjusting Methods for Video Frames of Video Sequence by Applying Scene Change Detection and/or Blinking Detection and Brightness Adjusting Devices Thereof

A brightness adjusting method for video frames of a video sequence includes receiving a current video frame of the video sequence and performing a scene change detection to determine if a scene change occurs between the current video frame and a previous video frame. Thereafter, one of a plurality of candidate brightness adjusting schemes is applied to the current video frame according to a scene change detection result.

Image processing apparatus, image processing method, and image processing program

Using an image signal SDin of a received image, a scene change detection unit 21 detects scene change of the received images. A movement detection unit 22 detects a movement in each of the received images. A display position determination unit 231 determines a display position of each of the received images based on the movement in each of the received images detected in a period of continuous scene. A wide field angle image generation unit superimposes the received images in said period of said continuous scene, a display position of which has been determined, to generate an image signal SB of the wide field angle image. A received image slide unit 233 generates image signal SDg wherein the received images are slid to the display positions. An image superimposition unit 234 superimposes the received images whose display positions have been slid on the wide field angle image, to generate an image signal SDp of a wide field angle display image in which the display position of each of the ...

Method of determining motion vectors for a bi-predictive image block

In one embodiment, the method includes determining a motion vector of a current image block equal to a motion vector of an image block based on a reference picture index indicating a reference picture for the image block. For example, the motion vector of the current image block may be equal to the motion vector of the image block if the reference picture index indicates a long-term reference picture for the image block.

Moving picture managing device

In a moving picture managing device, a boundary sensor senses the boundary between a cut of the input moving picture consisting of a plurality of frames and another cut on the basis of the difference in the number of blocks at the time of encoding the moving picture for a frame between the frame and an adjacent frame. Based on the boundaries sensed at the boundary sensor, the moving picture is filed in cuts. The moving picture is processed so as to be stored in a memory in a tree structure fashion in which the moving picture is composed of scenes and a plurality of cuts, each scene consisting of cuts. The filing is managed in cuts under the tree structure.

Color correction system and method with scene-change detection

A color correction system with an improved scene-change detection module is disclosed. The scene-change detection module processes video picture signals representative of images stored by an image recording medium to detect the start of a new scene. The module advantageously includes circuits which sense a change in each of at least two different parameters of the video picture signals. The changes are analyzed in relation to a preselected condition. The module also includes circuits which generate a change detect signal when the change in at least one of the two parameters satisfies the preselected condition. Preferably, an area discrimination circuit is employed to limit the portion of the video picture in which the signals are sampled for scene-change detection purposes. One of the parameters that may be analyzed is a signal indicative of the color content of the video picture. Another parameter that may be analyzed corresponds to signals in a particular frequency range, which frequency ...

Analyzer and methods for detecting and processing video data types in a video data stream

A video data stream analyzer modifies an input digital video signal so that the resulting output digital signal can be optimally compressed by a digital video encoder. The video data stream analyzer eliminates redundancy in the input video signal, and reorganizes the input video signal so that the spatial and temporal redundancy is increased. In addition, the video data stream analyzer generates side channel information that is supplied to the video encoder. The side channel information tells the video encoder whether vertical frame-based filtering or vertical field-based filtering is preferable. Additional side channel information specifies the order and duration of the display of the fields after decoding and this information preferably is encoded with the video signal. The video data stream analyzer provides scan detection of the incoming video digital data, and automatically and reliably detects scene cuts, repeated fields, and mixed-field frames in the incoming digital video data in ...

Browsing contents of a given video sequence

A method for representing contents of a video sequence for allowing a user to rapidly view a video sequence in order to find a particular desired point within the sequence and/or to decide whether the contents of a video sequence are relevant to a user, the video sequence having been pre-processed to detect scene changes and to build Rframes, and for allowing a user to scroll through the Rframes and to stop at a selected Rframe for processing, comprises playing the video sequence from a point of the selected Rframe, detecting all Rframes having respective degrees of similarity to the Rframe selected by the user, and presenting the similar Rframes to the user in a size or scale representative of the degrees of similarity.

Scene-change detection method that distinguishes between gradual and sudden scene changes

A video for one frame is captured and two adjacent frames are compared, the result of which is detected as a change degree of the video. Then, based on the magnitude of the change degree, it is determined whether a scene change (SC) exists. If an SC exists, it is examined whether its change degree alters rapidly or gradually, to determine the SC as a momentum or gradual SC. For the momentum SC, its determination point is detected as the momentum SC. For the gradual SC, its determination points is detected as the start of the gradual SC, thereafter, its end is detected. According, for one gradual SC, plural SC's are not detected and a midway illegible video is not indicated as an index picture.

Commercial detector with a start of active video detector

A method for classifying a first video type and a second video type in a digital video signal having a series of frames is disclosed. The method generally includes a first step of (A) reading a first set of parameters defining an active portion of a first of the frames. A second step may involve (B) reading a second set of parameters defining an active portion of a second of the frames. A third step includes (C) comparing the first set of the parameters with the second set of parameters to generate a comparison value. As such, (D) if the comparison value is above a predetermined threshold, indicating the first video type and (E) if the comparison value is not above the predetermined value, indicating the second video type.

Scene-change-point detecting method and moving-picture editing/displaying method

A method, apparatus and computer program for detecting a scene change point in a moving picture which has been coded according to a moving-picture coding process. The moving picture coding process divides the processing picture into a plurality of pictures. Each picture is divided into a plurality of blocks each being compressed by an encoder. The encoder operates according to a selected one of three compression techniques, namely an intra-picture compression technique, a differential-picture compression technique or a skipped-block compression technique. The invention counts the number of blocks of each picture subjected to the compression techniques, records the counts as user data, and analyzes the counts stored in the user data in a decoding operation in order to detect a scene change point of the moving picture.

System and method for video summarization and navigation based on statistical models

The disclosed method calculates video time density functions based on inter-frame mutual information or other similarity measures. The method includes acquiring a video sequence from memory, computing mutual information or other similarity measures between two consecutive frames of the video sequence, and constructing a video temporal density function based on the mutual information or similarity measures. The method enables fast navigation of the video sequence by performing a temporal quantization of the video time density function to determine a set of quanta. The video sequence can be navigated using the nearest neighbor video frames to the set of quanta. The method enables thumbnail extraction of a video sequence using statistical modeling by performing a temporal quantization of the video time density function to segment video sequence in time domain and using mixture (such as Gaussian mixture and ICA mixture) vector quantization to find the sample frames for each temporal segment ...

Method of determining motion vectors for a bi-predictive image block

In one embodiment, the method includes determining first and second reference pictures; and determining motion vectors of the bi-predictive image block based on a type of the first reference picture. The type is one of a long-term type and a short-term type, and characterizes a temporal distance of the first reference picture with respect to the bi-predictive block. The motion vectors of the bi-predictive image block are determined according to a first set of expressions if the first reference picture is of the short-term type, and according to a second set of expressions if the first reference picture is of the long-term type. The second set of expressions is different than the first set of expressions. The method further includes decoding the bi-predictive image block based on the determined motion vectors.

Method of compensating for turbulence when recording film sequences

A method of compensating for atmospheric turbulence when recording film sequences. A frame for an image that is being currently recorded is compared at pixel level with a number of frames recorded earlier. Each pixel value in a current frame is compared with pixel values in earlier frames. A matrix is adjusted upward by one unit at positions where a new value is encountered at the positions. Values adjusted upwards in the matrix are retained for a limited number of frame comparisons. A summing window is drawn over the matrix and movement is deemed to have occurred in areas where a sum from the summing window exceeds a limit value. A compensated frame is created. All pixel values in areas where the summing window exceeds the limit value are derived from the current frame. Other values are derived through a temporal median filtering of a number of earlier frames recorded.

Method and apparatus for editing source video to provide video image stabilization

A method and apparatus for editing a source video that has already been taken to stabilize images in the video. To eliminate jerky motion from a video, changes in shots are first detected. Then, any jerkiness within the video of that shot is classified and the video is segmented further into smaller segments based on this classification. The jerkiness within the selected segments is removed. The corrected shot, comprising a plurality of frames, is then added to the preceding shot until all shots of the video have been appropriately corrected for jerkiness. To help the user identify the shots being edited, keyframes or snapshots of the shots are displayed, thereby allowing the user to decide whether processing of the shot is desired and which shots should be incorporated into the final video.

IMAGE SIGNAL PROCESSING METHOD

An image signal processing method is disclosed for maintaining high image display quality by avoiding signal-mode misjudgment. The image signal processing method includes generating a first threshold based on a plurality of motion values generated prior to a first time when an image input signal is detected to be of a film mode, generating a second threshold based on the first threshold and a first offset, generating a third threshold based on the first threshold and a second offset, and determining whether the image input signal between the first time and a second time is the film mode or a video mode based on the second and third thresholds.

SYSTEM AND METHOD FOR REMOTELY MONITORING AND/OR VIEWING IMAGES FROM A CAMERA OR VIDEO DEVICE

A system and method are provided for remotely monitoring images from an image capturing device. Image data from an image capturing component is received where image data represents images of a scene in a field of view of the image capturing component. The image data may be analyzed to determine that the scene has changed. A determination may be made that the scene has changed. In response to this determination being made, a communication may be transmitted to a designated device, recipient or network location. The communication may be informative that a scene change or event occurred. The communication may be in the form of a notification or an actual image or series of images of the scene after the change or event.

Video encoder with embedded scene change and 3:2 pull-down detections

In one embodiment, a video encoder having a first and second phase of motion estimation, and scene change and 3:2 pull-down detection components is provided. In another embodiment, the first phase of motion estimation determines a set of field motion vectors to execute the scene change and 3:2 pull-down detection components. In another embodiment, the scene change and 3:2 pull-down detection component, and the second phase of the motion estimation occur after the first phase of motion estimation.

Method and Apparatus for Smart Video Skipping

Aspects of the subject disclosure may include obtaining a first media content item comprising a plurality of content segments. For each content segment of the plurality of content segments of the first media content item, comparing the content segment and a prior content segment to identify a content transition, analyzing the content segment to identify a content marker in the content segment, determining a viewing characteristic of the content segment according to the content transition and the content marker, determining if the content segment is unnecessary according to the viewing characteristic, and updating a set of skipping instructions associated with the first media content item responsive to the determining the content segment is unnecessary, and presenting the first media content item at a first device according to the set of skipping instructions associated with the first media content item. Other embodiments are disclosed.

DETECTING A CONTENT ITEM IN A DIGITAL VIDEO STREAM

Method and apparatus for detecting local video features

A system for locating automatically video segment boundaries and for extraction of key-frames

Image coding method and apparatus, and image decoding method and apparatus

An image input unit (12) acquires key frames. A scene change detector (20) detects a scene change inbetween the key frames, and notifies a matching processor (14), which (14) then skips generation of correspondence data. A stream generator (16) generates a coded data stream in a manner that key frames and the correspondence data are incorporated when there is no scene change, while key frames and correspondence disable data are incorporated when there is a scene change.

Image processing apparatus and method for transmitting high-resolution graphic screen

An image processing apparatus and an image processing method for transmitting a high-resolution graphic screen are provided. The image processing method includes determining whether an input image is a moving image or a still image; and if it is determined that the image is a moving image, converting a resolution of the moving image to a first resolution, and if it is determined that the image is a still image, converting a resolution of the still image to a second resolution. Therefore, it is possible to output high-resolution graphic data and image data without degradation in the image quality.

DEVICE AND METHOD FOR PROCESSING SIGNAL, RECORDING MEDIUM, AND PROGRAM

PROBLEM TO BE SOLVED: To make appropriately detectable a scene change. SOLUTION: In a step S2, the amplitude of each of sub-band signals decomposed into spectrums in a step S1 is detected. In a step S3, the amplitude of each of sub-band signal is smoothed and sampled corresponding to time for smoothing. In a step S4, on the basis of a value F (n, k) of the smoothed sub- band amplitude and a value F (n-1, k) of the preceding sampled smoothed sub- band amplitude, a spectrum change amount D is calculated. In a step S5, it is decided whether the calculated spectrum change amount D is greater than a prescribed threshold or not and in a step S6, processing based on the decided result is executed. COPYRIGHT: (C)2003,JPO ...

Motion picture camera arrangement and method of operating a motion picture camera arrangement

Detecting scene changes

Digital image processing

Ending advertisement insertion

A method for ending advertisement insertion in a video stream includes receiving a video stream and continually creating statistical parameterized representations for windows of the video stream. The statistical parameterized representation windows are continually compared to windows of a plurality of fingerprints. Each of the plurality of fingerprints includes associated statistical parameterized representations of a known video entity. Advertisements are inserted into the video stream when a fingerprint for a known video entity indicative of a commercial break has at least a threshold level of similarity with the video stream. The inserting is ended when an end of the advertisement break is determined. The fingerprints may be created using colour coherence vectors, colour histograms or sub-sampling of an image and the end of an advertisement break may be determined by a return to programming, a channel change or an Electronic Programme Guide activation, for example.

Detecting known video entities utilizing fingerprinting

A method for detecting a known video entity within a video stream includes receiving a video stream and continually creating statistical parameterized representations for windows of the video stream. The statistical parameterized representation windows are continually compared to windows of a plurality of fingerprints. Each of the plurality of fingerprints includes associated statistical parameterized representations of a known video entity. A known video entity in the video stream is detected when a particular fingerprint of the plurality of fingerprints has at least a threshold level of similarity with the video stream. The fingerprints may be created using colour coherence vectors, colour histograms or sub-sampling of an image. Once detected, a known video entity may be substituted with a targeted advert.

Video processing

Scene change detection

Method for coding a moving picture

Movement detector for television signals

A movement detector for television signals measures the difference between maximum and minimum values of the movement components of a picture difference signal over a chosen interval. A television signal at an input (12) is delayed in a picture delay (2), and the delayed and undelayed signals subtracted in a subtractor (1) to form a picture difference signal. This is rectified in rectifier (3) and smoothed in a filter (4). A maximum detector (6) and a minimum detector (7) are coupled to the filter output and are re-set at prescribed intervals. A subtractor (8) determines the difference between the output of detectors (6) and (7) and this is compared with a reference value in a comparator (9), the output of which is sampled and stored in a store (10).

Digital image processing

Method and apparatus for analysing image data

VIDEO PROCESSING

Digital image processing

PROCEDURE FOR DETECTION AND IDENTIFICATION OF TEMPORALLY CONSTANT SAMPLES IN VIDEO SIGNALS, IN PARTICULAR FOR THE DETECTION FROM ADVERTISING SPOTS IN TELEVISION TRANSMISSIONS, AND DEVICE TO THE EXECUTION OF THIS PROCEDURE

RECOGNITION OF ACQUAINTANCE OF PICTURES IN VIDEO SEQUENCES

PROCEDURE AND DEVICE FOR THE CONTRAST ATTITUDE OF A PICTURE

AUTOMATED PROCEDURE FOR TEMPORAL SEGMENTING OF A VIDEO IN SCENES WITH CONSIDERATION OF DIFFERENT TYPES OF TRANSITIONS BETWEEN SCREEN SEQUENCES

TREATMENT OF TELEVISION SIGNALS

METHOD FOR ERROR CONCEALMENT IN VIDEO SEQUENCES

Improved image encoding/decoding method and apparatus

Adaptive edge detection and enhancement for image processing

METHOD OF DETECTING SCENE CUTS

METHOD FOR DETECTING SCENE CUTS A method for operating a computer or similar apparatus so as to automatically detect scene cuts in a motion picture. The motion picture comprises a plurality of frames in a sequential order. The preferred embodiment of the present invention utilizes the correlation between successive frames to detect abrupt cuts. Gradual cuts are preferably detected by examining a function consisting of the standard deviation of the pixels of each frame as a function of the frame number.

GRADATION CORRECTOR

VIDEO SIGNAL GRADATION CORRECTOR

In a video signal gradation corrector used in a television receiver, an output of a look-up table memory is supplied to a constant-multiplication circuit, an output signal of the constant-multiplication circuit and an output signal of a look-up table operating circuit are added by an adder, and the result of addition is set into the look-up table memory. Further, a video scene change detecting circuit is be provided between an output terminal of the look-up table operating circuit and a coefficient control terminal of the constant-multiplication circuit, and a coefficient of the constant-multiplication circuit is changed in accordance with a change in video scene. Thereby, a correction is made which is not affected by noises, is stable and smooth, and follows the change in video scene.

DIGITAL VIDEO SYSTEM AND METHODS FOR PROVIDING SAME

A digital image enhancer (30) includes a deinterlacing processor (50) receptive to an interlaced video stream. The deinterlacing processor includes a first deinterlacer (70) and a second deinterlacer (80) and provides a deinterlaced video stream. The digital image enhancer also includes a video output processor (60) receptive to the output of the deinterlaced video stream. A portable DVD player (10) including the digital video enhancer has a generally thin prismatic enclosure (12) having a first major surface, a second major surface separated from said first major surface, and side surfaces connecting the first major surface to the second major surface. At least a portion of the first major surface includes a video display (14), and the enclosure includes a DVD entry port (22) such that a DVD (24) can be inserted into the enclosure.

PARTIAL DECODING OF COMPRESSED VIDEO SEQUENCES

Compressed video sequences generated using a (e.g., DCT) transform are partially decoded (202) to recover (204) the low-frequency transform coefficients (e.g., only the DC coefficients) from the encoded bitstream. The low-frequency coefficients are then used to generate blocks of image data that are subjected to motion-compensated inter-frame addition (206) to generate partially decoded images that can be used for subsequent processing, such as histogram analysis (208) for video parsing. The present invention avoids having to perform the computationally expensive inverse transform operations, while still achieving satisfactory results.

Method and apparatus for providing information related to broadcast programs

PROCESS AND DEVICE OF DETECTION Of a CHANGE OF PLAN IN a SEQUENCEVIDEO, COMPUTER PROGRAM AND PROCESS Of INDEXING CORRESPONDENTS

Image processing apparatus and image processing method

A CPU divides a moving image file at a divided frame position, thereby generating a first divided moving image file including a first frame and another divided moving image file. The CPU detects a frame position where an object appears for the first time in the reproduction order from the other divided moving image file, and generates a file that describes the detected position as a new face information management file. The CPU controls a recording/reproduction control circuit to store the generated new face information management file in a recording medium in association with the other divided moving image file.

Image processing apparatus and method

A first white balance correction amount is calculated according to similarity between image data acquired by an image pickup unit and past image data acquired in the past, and a first white balance correction is performed on the image data according to the first white balance correction amount. A luminance correction amount and a color correction amount are calculated according to similarity between the corrected image data and the past image data corrected in the first white balance correction. Using one of them, the first white balance correction amount is corrected thereby to obtain a second white balance correction amount. According to the obtained correction amount, a second white balance correction, a luminance correction, and a color correction are performed on the image data acquired by the image pickup unit.

SCHEME FOR DETERMINING THE LOCATIONS AND TIMING OF ADVERTISEMENTS AND OTHER INSERTIONS IN MEDIA

A method for use with content includes analyzing a sequence of frames of the content, determining whether an area exists in a scene depicted by the sequence of frames where additional content such as advertising can be inserted without obstructing activity in the scene, for any such area, determining an amount of time that the area is available when the sequence of frames is being played, and for any such area, determining a size of the area. A storage medium storing a computer program for causing a processor based system to execute these steps and an apparatus for use with content are also disclosed. 124-. (canceled)25. A method , comprising:analyzing a sequence of frames of content;determining whether an area exists in a scene depicted by the sequence of frames where additional content can be inserted without obstructing activity in the scene;for any such area, determining a size of the area;selecting the additional content based at least in part on an analysis of the size of the area to determine between displaying only one advertisement and displaying a plurality of advertisements together in the area; andin response to determining to display a plurality of advertisements, causing the plurality of advertisements to be displayed together in the area in the scene.26. The method of claim 25 , wherein the selecting the additional content is further based on an analysis of revenue that can be generated by the additional content.27. The method of claim 26 , wherein the analysis of revenue that can be generated by the additional content comprises:comparing revenue generated by filling the area with a plurality of smaller advertisements with revenue generated by filling the area with one large advertisement.28. The method of claim 26 , wherein the selecting the additional content is based on maximizing the revenue generated by the additional content.29. The method of claim 25 , wherein the selecting the additional content is further based on an analysis of an amount of ...

MEASURING DEVICE AND METHOD FOR CALCULATING RESPONSE TIME OF ELECTRONIC DEVICE

A method for calculating response time of an electronic device is provided. The method includes: obtaining a video file recording a process of change of interface displayed from an original interface to a new interface chosen by a user, the video file comprises a series of video frames; searching for a key video frame among all the video frames of the video file, the image of the key video frame indicates the point of demarcation between the original interface and the new interface displayed; and calculating a time interval from a first video frame of the video file to the key video frame, according to timestamps of the first video frame and of the key video frame, so as to determine the actual response time of the electronic device. A related measuring device is also provided. 1. A measuring device for calculating response time of an electronic device , the measuring device comprising:a storage unit configured for storing a video file recording a process of change of interface displayed on the electronic device from an original interface to a new interface chosen by a user, wherein the video file comprises a series of video frames; anda processing unit configured for searching for a key video frame among all the video frames of the video file, the image of the key video frame indicating the demarcation point between the original interface and the new interface displayed on the electronic device; the processing unit further configured for calculating a time interval from a first video frame of the video file to the key video frame, according to timestamps of the first video frame and of the key video frame, so as to determine the response time of the electronic device as the calculated time interval.2. The measuring device as described in claim 1 , wherein the processing unit comprises a dichotomy searching module claim 1 , the dichotomy searching module is configured to search for reference midway video frames of the video file according to an input dichotomy ...

VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD

An input video is compared with a background model. Based on the comparison result, a duration time during which a difference region different from the background model continues in the input video is measured. The difference region whose duration time is less than a predetermined threshold is determined as a foreground. A scene change in the input video is detected based on the comparison result. Upon detecting the scene change, the predetermined threshold is changed. 1. A video processing apparatus comprising:a comparison unit configured to compare an input video with a background model;a timer unit configured to measure, based on a comparison result of said comparison unit, a duration time during which a difference region different from the background model continues in the input video;a determination unit configured to determine the difference region whose duration time is less than a predetermined threshold as a foreground;a detection unit configured to detect a scene change in the input video based on the comparison result of said comparison unit; anda changing unit configured to change the predetermined threshold when said detection unit has detected the scene change.2. The apparatus according to claim 1 , wherein the background model represents a feature amount of a background image claim 1 , andsaid comparison unit extracts the feature amount from the input video and compares the extracted feature amount with the background model.3. The apparatus according to claim 2 , further comprising a storage unit configured to store the feature amount and an appearance time at which the feature amount has newly appeared claim 2 ,wherein said timer unit measures the duration time during from the appearance time stored in said storage unit.4. The apparatus according to claim 1 , wherein said changing unit changes the predetermined threshold to a value smaller than a current value when said detection unit has detected the scene change.5. The apparatus according to claim ...

IMAGE PROCESSING APPARATUS, IMAGE DISPLAY APPARATUS, AND IMAGE PROCESSING METHOD

According to one embodiment, An image processing method includes: estimating a composition of image data, for each piece of image data received in a temporal order to calculate a reliability indicating likelihood of the composition estimated; determining whether the composition estimated is different from a composition previously used which is a composition to be used for image data previously received and whether the reliability is equal to or higher than a predetermined first threshold, and updating a composition to be used to the estimated composition when the estimated composition is different from the composition previously used and compositions having the reliability equal to or higher than the first threshold are received successively equal to or more than a predetermined first number of times; and calculating an intensity at which a sharpening process of the image data is performed based on the composition to be used 1. An image processing apparatus comprising:a composition estimating module configured to estimate a composition of image data, for each piece of image data received in a temporal order, and to calculate a reliability indicating likelihood of the composition estimated;a scene determining module configured to determine whether the composition estimated is different from a composition previously used which is a composition to be used for image data previously received and whether the reliability is equal to or higher than a predetermined first threshold, and to update a composition to be used to the estimated composition when the estimated composition is different from the composition previously used and compositions having the reliability equal to or higher than the first threshold are received successively equal to or more than a predetermined first number of times;an intensity calculator configured to calculate an intensity at which a sharpening process of the image data is performed based on the composition to be used; anda sharpening ...

LOOK-AHEAD SYSTEM AND METHOD FOR PAN AND ZOOM DETECTION IN VIDEO SEQUENCES

A look-ahead system and method for pan and zoom detection in video sequences is disclosed. The system and method use motion vectors in a reference coordinate system to identify pans and zooms in video sequences. The identification of pans and zooms enables parameter switching for improved encoding in various video standards (e.g., H.264) and improved video retrieval of documentary movies and other video sequences in video databases or other storage devices. 1. (canceled)2. A method of detecting at least one of a pan and a zoom in a video sequence , comprising:detecting motion vectors to detect a scene cut in a plurality of frames;selecting a set of frames from the video sequence in response to detection of a scene cut;identifying at least two regions in each selected frame, a first region having motion vectors of a first orientation and a second region having motion vectors of a second orientation;determining amounts of each frame covered by each of the at least two regions; andcomparing the detected amounts to threshold values, and based on comparisons, classifying the video sequence as having a pan or zoom. This application is a continuation of U.S. patent application Ser. No. 10/655,564, filed on Sep. 3, 2003, which is incorporated herein by reference in its entirety.The invention relates generally to analysis of motion in video sequences and, more particularly, to identifying pan and zoom global motion in video sequences.The analysis of motion information in video sequences has typically addressed two largely non-overlapping applications: video retrieval and video coding. In video retrieval systems, the dominant motion, motion trajectories and tempo are computed to identify particular video clips or sequences that are similar in terms of motion characteristics or belong to a distinct class (e.g., commercials). In video coding systems, global motion parameters are estimated for global motion compensation and for constructing sprites. In both video retrieval and ...

INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, DISPLAY CONTROL APPARATUS, DISPLAY CONTROLLING METHOD, AND PROGRAM FOR DISPLAY OF A PLURALITY OF VIDEO STREAMS

An information processing apparatus, an information processing method, a display control apparatus, a display controlling method, and a program may allow a provider subjectively to control the manner in which to display pictures using of a plurality of video streams. A transmission device generates video streams used for picture display of a single program. The video streams are multiplexed into a multiplexed stream to which compose information is added. The multiplexed information together with the added compose information is supplied to a reception device. The compose information includes information designating the video streams for displaying pictures in various positions on a screen. The reception device decodes the video streams included in the multiplexed stream. The pictures from the decoded video streams are displayed on the screen in accordance with information included in the compose information. This information can be applied to apparatuses handling a plurality of video streams. 1. (canceled)2. An information processing apparatus comprising:a hardware structure for:multiplexing a plurality of video streams;adding compose information to a multiplexed stream obtained through said multiplexing, said compose information including first information designating the number of video streams to be displayed, second information designating a horizontal position that one of the video streams is to be positioned, and third information designating a vertical position that the one of said video streams is to be positioned; andtransmitting the multiplexed stream with said added compose information.3. The information processing apparatus according to claim 2 , wherein said added compose information includes fourth information designating a screen used for picture display.4. The information processing apparatus according to claim 2 , wherein windows formed on said screen respectively corresponding to the video streams are variable in size.5. The information processing ...

METHOD OF AND APPARATUS FOR UTILIZING VIDEO BUFFER IN A MULTI-PURPOSE FASHION TO EXTEND THE VIDEO BUFFER TO MULTIPLE WINDOWS

The present invention includes a method and device that allows efficient mixing of multiple video images with a graphics screen while utilizing only one video buffer. The present invention partitions the sole video buffer, pre-scales the plurality of video images and inserts them into the partitioned video buffer in a predetermined range of buffer addresses. The present invention mixes the partitioned video including the pre-scaled video images with the graphics screen to produce a video display including both a video screen and a graphics screen. 1. A method of producing a display frame , the method comprising:a. partitioning a video buffer into a plurality of sub-buffers wherein a size of each sub-buffer corresponds to a display size of a corresponding display window;b. scaling a first set of video data, wherein the first set of video data represents a first video image, further wherein the first set of video data is scaled to be loaded in a corresponding one of the plurality of sub-buffers;c. loading the first set of video data in to one of the plurality of sub-buffers of the video buffers; andd. displaying the first set of video data in the video buffer in the display frame.2. The method according to wherein when if a second set of data exists the second set of video data will be scaled claim 1 , further wherein the second set of video data represents a second video image.3. The method according to further comprising displaying the display frame on a display device.4. The method according to wherein the display device is a television.5. The method according to wherein the first and second set of video data are received from a source device by an input/output interface in a playback device.6. The method according to wherein the number of the plurality of sub-buffers generated is predetermined by a user claim 1 , further wherein the sub-buffers are defined by an address range.7. The method according to wherein when first set of data is loaded in to a predetermined ...

Method of determining motion vectors for bi-predictive image block

In one embodiment, the method includes determining a motion vector of a current image block equal to a motion vector of an image block based on a reference picture index indicating a reference picture for the image block. For example, the motion vector of the current image block may be equal to the motion vector of the image block if the reference picture index indicates a long-term reference picture for the image block.

Method of determining motion vectors for bi-predictive image block

In one embodiment, the method includes determining a motion vector of a current image block equal to a motion vector of an image block based on a reference picture index indicating a reference picture for the image block. For example, the motion vector of the current image block may be equal to the motion vector of the image block if the reference picture index indicates a long-term reference picture for the image block.

EVENT-BASED FEATURE TRACKING

Methods, systems and computer readable media for implementing a soft data association modeled with probabilities. The association probabilities are computed in an intertwined EM scheme with the optical flow computation that maximizes the expectation (marginalization) over all associations. In addition, longer tracks can be enabled by computing the affme deformation with respect to the initial point and use the resulting residual as a measure of persistence. The computed optical flow enables a varying temporal integration different for every feature and sized inversely proportional to the length of the flow. The results can be seen in egomotion and very fast vehicle sequences. 1. A method for tracking features in image data , the method comprising:detecting, over a period of time, a plurality of asynchronous events from an asynchronous event-based sensor;initializing one or more features in the image data by integrating events from an initial temporal window into an initial image and detecting the one or more features in the initial image;tracking the one or more features after the initial temporal window, including assigning events, corresponding to temporal windows after the initial temporal window, to the one or more features by determining, for each event and each point within the feature, a probability that the event is associated with the point; andidentifying, based on the tracking, motion of one or more physical objects.2. The method of claim 1 , wherein tracking the one or more features comprises estimating an optical flow for each feature describing motion of the feature in an image plane over a spatiotemporal window.3. The method of claim 2 , wherein estimating an optical flow comprises solving a constraint based on grouping events generated from the same point over the spatiotemporal window and a corresponding set of events using an Expectation Maximization algorithm.4. The method of claim 1 , wherein initializing the one or more features comprises claim ...

Automated Selection Of Keeper Images From A Burst Photo Captured Set

Systems and methods for improving automatic selection of keeper images from a commonly captured set of images are described. A combination of image type identification and image quality metrics may be used to identify one or more images in the set as keeper images. Image type identification may be used to categorize the captured images into, for example, three or more categories. The categories may include portrait, action, or “other.” Depending on the category identified, the images may be analyzed differently to identify keeper images. For portrait images, an operation may be used to identify the best set of faces. For action images, the set may be divided into sections such that keeper images selected from each section tell the story of the action. For the “other” category, the images may be analyzed such that those having higher quality metrics for an identified region of interest are selected. 1. A non-transitory program storage device , readable by a programmable control device and comprising instructions stored thereon to cause one or more programmable control devices to:obtain a temporal sequence of images of a scene;determine, for each of the obtained images, at least one quality metric value;detect if the scene in the temporal sequence of images contains action;divide the temporal sequence of images into two or more sections, in response to determination that the scene contains action;compare the quality metric values of images within each section; andselect, for each of the two or more sections, at least one image as a keeper image based on the comparison of the quality metric values.2. The non-transitory program storage device of claim 1 , wherein dividing the temporal sequence of images is based on detecting a scene change.3. The non-transitory program storage device of claim 1 , wherein the instructions further cause the one or more programmable control devices to:calculate a distance between images of the temporal sequence of images, wherein the ...

SCENE CHANGE DETECTION FOR PERCEPTUAL QUALITY EVALUATION IN VIDEO SEQUENCES

There are provided a plurality of methods for detecting a scene change in a streamed video, the streamed video comprising a series of pictures. An example method comprises calculating, for a plurality of positions, a difference between the costs of coding macro-blocks at the same position in successive pictures. The method further comprises identifying a new scene when the sum of the differences for a plurality of positions meets a threshold criterion. There is further provided a method of determining the perceptual impact of a packet loss on a streamed video the method comprising: identifying a packet loss; and determining if the lost packet contained information relating to a picture at the start of a new scene, wherein a new scene is detected using one of the methods disclosed herein. 1. A method of detecting a scene change in a streamed video , the streamed video comprising a series of pictures , the method comprising:calculating, for a plurality of positions, a difference between pixel values at the same position in successive pictures;applying a weighting to the difference, the weighting dependent upon the macro-block type associated with the position; andidentifying a new scene when the sum of the weighted differences for a plurality of positions exceeds a threshold value.2. The method of claim 1 , wherein the macro-block type associated with the pixel position is the macro-block type used in the encoding of the pixel position in the latter of the successive pictures.3. The method of claim 1 , further comprising applying motion compensation claim 1 , and wherein the difference between the cost of coding macro-blocks for pixels at the same position in successive pictures is calculated for the pixel positions after motion compensation has been applied.4. The method of claim 1 , wherein the macro-block type comprises one of: skip; inter-coded macro-block; inter-coded sub-block; intra-coded macro-block; and intra-coded sub-block.5. A method of detecting a scene ...

IMAGE PROCESSING APPARATUS, IMAGE PICKUP DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM

An image pickup device which captures sound and a moving image prevents deterioration in a reproduction quality. A scene change detector detects a frame at the time of a scene change from among a plurality of frames imaged at a predetermined frame rate as a detection frame. A frame rate converting unit converts a frame rate of the frame imaged outside a detection to a lower frame rate. A video reproduction time setting unit sets a reproduction time when reproduction is performed at the lower frame rate as a video reproduction time. An audio reproduction time setting unit sets an audio reproduction time at constant intervals for sounds recorded at constant intervals outside the detection period and sets an audio reproduction time in synchronization with the video reproduction time corresponding to the detection frame relative to sound recorded in the detection period. 1. An image processing apparatus comprising:a scene change detector configured to detect a frame at the time of a scene change from among a plurality of frames imaged at a predetermined frame rate as a detection frame;a frame rate converting unit configured to convert a frame rate of a frame imaged outside a detection period including an imaging time of the detection frame from among the plurality of frames to a low frame rate lower than the predetermined frame rate;a video reproduction time setting unit configured to set a reproduction time when reproduction is performed at the low frame rate as a video reproduction time of each of the plurality of frames; andan audio reproduction time setting unit configured to set an audio reproduction time at constant intervals to a plurality of sounds recorded at the constant intervals outside the detection period and set an audio reproduction time in synchronization with the video reproduction time corresponding to the detection frame relative to the sound recorded in the detection period.2. The image processing apparatus according to claim 1 , further comprising: ...

Detecting shot changes in a video

One embodiment of the present invention sets forth a technique for detecting a shot change in a video. The technique includes calculating a first plurality of difference values for pixel blocks included in a first video frame and a second video frame and calculating a first cumulative distribution function (CDF) based on the first plurality of difference values. The technique further includes calculating a second plurality of difference values for pixel blocks included in a first plurality of video frames that is contiguous with the first video frame and calculating a second CDF based on the second plurality of difference values. The technique further includes comparing the first CDF to the second CDF to detect a shot change.

SCENE ANALYZING METHOD AND MONITORING DEVICE USING THE SAME

A scene analyzing method includes the steps of: receiving captured scene information; analyzing different targets in the scene information to obtain characteristic information of each of the targets; and sending the obtained characteristic information to an external device or correlating the characteristic information to the scene information and storing it to a storage device in order to retrieve the scene information corresponding to the characteristic information stored in the storage device. The scene information corresponding to the characteristic information is searchable to extract a specific target when the scene analyzing method is used for monitoring applications. This reduces human costs and increases efficiency in monitoring information. 1. A scene analyzing method , comprising the steps of:a. receiving scene information being captured, wherein the scene information contains targets;b. analyzing the targets in the scene information to obtain characteristic information of each of the targets; andc. sending the characteristic information to an external device, or correlating the characteristic information to the scene information and storing the characteristic information to a storage device in order to retrieve the scene information based on the characteristic information stored in the storage device.2. The scene analyzing method of claim 1 , wherein in step a claim 1 , the scene information is captured in real time by an image capturing device.3. The scene analyzing method of claim 1 , wherein in step a claim 1 , the scene information is pre-stored in a database.4. The scene analyzing method of claim 1 , wherein the characteristic information includes profile claim 1 , texture or color of each target.5. The scene analyzing method of claim 1 , wherein:in step a, the scene information is obtained at different times; 'b1. analyzing position information of each of the targets; and', 'in step b, the different targets in the scene information at different ...

Methods and apparatus for detecting a television channel change event

A method for detecting an event indicative of a change of TV channel by a viewer comprises analyzing one or more video frames displayed on the TV screen to identify a change which is associated with a TV channel change.

Time Compressing Video Content

Methods and systems for compressing video content are presented. The methods and systems include analyzing a sequence of media frames stored in the memory device and calculating a displacement level of each of the media frames. The displacement level indicates how different each of the media frames is to a previous media frame. The sequence of media frames is divided into a plurality of cuts where each cut ends at a media frame having a substantially high displacement level. Frames to be removed from the sequence of media frames are identified in each cut based upon the frame's displacement level. The identified frames are then removed. 1. A method comprising:receiving a sequence of frames of commercial content associated with a first time duration;determining a second time duration for insertion of the commercial content into a content stream, wherein the first time duration is longer than the second time duration;removing one or more frames, from the sequence of frames of commercial content, that were added based on a pulldown pattern, to compress the sequence of frames of commercial content; andcausing output of the compressed sequence of frames of commercial content during the second time duration.2. The method of claim 1 , further comprising:determining one or more frames of the sequence of frames of commercial content that were added based on the pulldown pattern.3. The method of claim 1 , further comprising:determining a displacement value for each frame of the sequence of frames of commercial content.4. The method of claim 3 , wherein the displacement value indicates a difference in color or position between each frame of the of frames of commercial content and one or more previous frames in the sequence of frames of commercial content.5. The method of claim 1 , further comprising:dividing, based on one or more displacement values in the sequence of frames of commercial content exceeding a threshold, the sequence of frames of commercial content into a ...

PHOTOGRAPHING METHOD AND DEVICE

A photographing method for use in a device includes: monitoring a current time and determining whether the current time reaches a preset shooting time; taking a first picture of an object when it is determined that the current time reaches the preset shooting time; determining a difference between a first image in a preset area of the first picture and a second image in the preset area of a second picture taken at a previous preset shooting time, the preset area corresponding to the object; and saving the first picture if the determined difference is equal to or greater than a preset threshold value.

Methods and systems for generating ambient light effects based on video content

Methods and systems for producing ambient light effects based on video content are provided. A method of producing an ambient light effect includes providing a receiving device including a processor configured to parse incoming video content and receiving the video content including a plurality of scenes at the receiving device. The method further includes parsing the incoming video content and detecting at least one scene in the video content for association with at least one ambient light effect. The method also includes generating a command specifying at least one ambient light effect to be associated with at least one scene and sending the command from the receiving device to at least one lighting device in communication with the receiving device to generate at least one ambient light effect associated with at least one scene when the scene is displayed to a user.

METHODS AND APPARATUS TO DETECT COMMERCIAL ADVERTISEMENTS ASSOCIATED WITH MEDIA PRESENTATIONS

Methods and apparatus to detect commercial advertisements associated with media presentations are disclosed. An example method involves receiving a video frame and detecting a change in box-formatting between the video frame and a subsequent video frame. A transition between the video frame and the subsequent video frame is indicated as a commercial advertisement transition based on the detected change in box-formatting. 1. (canceled)2. An apparatus comprising:at least one memory;instructions in the apparatus; and generate a first hint value based on a first characteristic associated with a media presentation, the first characteristic indicative of a commercial transition;', 'generate a second hint value based on a second characteristic associated with the media presentation, the second characteristic indicative of the commercial transition;', 'determine an aggregated weighted hint value based on the first hint value and the second hint value; and', 'indicate a presence of the commercial transition associated with the media presentation based on a determination that the aggregated weighted hint value satisfies a threshold., 'processor circuitry to execute the instructions to3. The apparatus of claim 2 , wherein the threshold is a first threshold claim 2 , the first characteristic is an amount of audio randomness in an inter-segment audio frame of the media presentation claim 2 , and the processor circuitry is to:determine the amount of audio randomness being based on a random-factor ratio; andgenerate the first hint value based on a comparison of the amount of audio randomness to a second threshold.4. The apparatus of claim 2 , wherein the second characteristic is a presence of at least one of a change in box-formatting between consecutive video frames claim 2 , an audio format change claim 2 , an aspect ratio change claim 2 , a timestamp discontinuity claim 2 , a closed-captioning text discontinuity claim 2 , or a commercial insertion opportunity code.5. The ...

DETECTION METHOD FOR STATIC IMAGE OF A VIDEO AND TERMINAL, AND COMPUTER-READABLE STORAGE MEDIUM

Disclosed are a detection method for static image of a video, a detection terminal, and a computer-readable storage medium. The method includes: obtaining a frame image from the video as a reference frame image in a playback order, obtaining an image set comprising n frame images after the reference frame image in the playback order; sequentially determining whether first (n−1) frame images in the currently obtained image set satisfy a preset static image brightness requirement; determining whether a nth frame image in the image set satisfies a preset gray histogram judgment condition; determining whether a stop condition is satisfied according to the reference frame image and the nth frame image in the currently obtained image set; if the above determination results are yes, determining that a video image including the frame images from the reference frame image to the nth frame image in the current image set is a static image. 110-. (canceled)11. A detection method for static image of a video , comprising:obtaining a frame image from the video as a reference frame image in a playback order, and obtaining an image set comprising n frame images after the reference frame image in the playback order;sequentially determining whether first (n−1) frame images in the currently obtained image set satisfy a preset static image brightness requirement;in response to the first (n−1) frame images satisfying the preset static image brightness requirement, determining whether a nth frame image in the image set satisfies a preset gray histogram judgment condition;in response to the nth frame image in the image set satisfying the preset gray histogram judgment condition, determining whether a stop condition is satisfied according to the reference frame image and the nth frame image in the currently obtained image set;in response to the stop condition failing to be satisfied, continuing to obtain a next image set comprising n frame images after the currently obtained image set, and ...

DCT BASED BLACK FRAME DETECTION USING VARYING BLOCK SIZE

A video detector that detects black frames in a video includes a grayscale converter, a parser for parsing the grayscale video into a sequence of individual frames, a sub-frame parser for parsing frames of an uneven block size into two or more sub-frames, and a DCT calculator. The detector extracts a DC component or AC component, or both, of the generated DCT and then compares them against respective threshold values. The individual frames are identified as a black frame based on a comparison between the selected component and the threshold value. Methods of detecting black frames based on DC components and AC components are also described. 1. A video detector for detecting black frames in a video that includes a number of individual sequential frames , comprising:an input for accepting the video;a grayscale converter for converting the video to grayscale;a parser for parsing the grayscale video into a sequence of individual frames;a sub-frame parser for parsing those individual frames that do not have a size of an even block size into one or more sub-frames;a DCT calculator for generating a DCT of a frame or of a sub-frame;a DC component extractor for extracting a DC component of the generated DCT;a comparator structured to evaluate the extracted DC component against a DC component threshold value; andan identifier structured to indicate the individual frame as a black frame based on a comparison between the selected DC component and the threshold value.2. The video detector for detecting black frames according to in which the even block size is 32×32.3. The video detector for detecting black frames according to in which the DCT calculator is structured to generate a DCT of a frame and of one or more sub-frames.4. The video detector for detecting black frames according to in which the sub-frame parser is structured to claim 1 , for those individual frames that do not have a size of the even block size:parse a main portion of the individual frame into a main sub- ...

COLLECTING AND VIEWING THREE-DIMENSIONAL SCANNER DATA IN A FLEXIBLE VIDEO FORMAT

A method interactively displays panoramic images of a scene. The method includes measuring 3D coordinates with a 3D measuring instrument at a first position and a second position. The 3D coordinates are registering into a common frame of reference. Within the scene, a trajectory includes a plurality of trajectory points. Along the trajectory, 2D images are generated from the commonly registered 3D coordinates. A trajectory display mode sequentially displays a collection of 2D images at the trajectory points. A rotational display mode allows a user to select a desired view direction at a given trajectory point. The user selects the trajectory display mode or the rotational display mode and sees the result shown on the display device. 1. A method of interactively displaying panoramic images of a scene , the method comprising:measuring a first plurality of 3D coordinates with a 3D measuring instrument at a first position;measuring a second plurality of 3D coordinates with the 3D measuring instrument at a second position different than the first position;registering the first plurality of 3D coordinates and the second plurality of 3D coordinates together in a common frame of reference;providing a trajectory within the scene, the trajectory including a collection of trajectory points;generating along the trajectory a plurality of two-dimensional (2D) images at each trajectory point; anddisplaying the 2D image on a display device in one of a rotational display mode or a trajectory display mode in response to an input from a user, the trajectory display mode being configured to display the 2D images sequentially along the trajectory points, the rotational display mode being configured to display the 2D images at a single trajectory point from a user-defined view direction.2. The method of claim 1 , further comprising providing a user control.3. The method of claim 2 , wherein the user-defined view direction is selected from a plurality of observer view directions.4. The ...

SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING SYSTEM, SIGNAL PROCESSING METHOD, AND PROGRAM

Reduction in reproduction quality is suppressed in an imaging device that images a sound and a moving image. A frame rate converter converts a frame rate of a frame captured outside a predetermined period among a plurality of frames captured at a predetermined frame rate to a low frame rate lower than the predetermined frame rate. A duplication unit duplicates an original sound signal recorded over the predetermined period to generate a plurality of duplicated sound signals each of which is identical to the original sound signal. The audio signal processing unit performs different signal processing on each of the plurality of duplicated sound signals. 1. A signal processing device comprising:a frame rate converter that converts a frame rate of a frame captured outside a predetermined period among a plurality of frames captured at a predetermined frame rate to a low frame rate lower than the predetermined frame rate;a duplication unit that duplicates an original sound signal recorded over the predetermined period to generate a plurality of duplicated sound signals each of which is identical to the original sound signal; anda sound signal processing unit that executes different signal processing for each of the plurality of duplicated sound signals.2. The signal processing device according to claim 1 , wherein the sound signal processing unit performs processing of adjusting a volume level of each of the plurality of duplicated sound signals by mutually different gains claim 1 , as the signal processing.3. The signal processing device according to claim 1 , wherein the sound signal processing unit performs processing of changing a frequency characteristic of each of the plurality of duplicated sound signals to mutually different characteristics claim 1 , as the signal processing.4. The signal processing device according to claim 1 , further comprising a reproduction speed converter that changes the reproduction speed of the original sound signal and supplies the ...

SCENE CHANGE DETECTION

Methods, apparatuses and systems may provide for technology that quickly and accurately detects scene changes by evaluating a current frame based at least in part on a plurality of feature groups. Each of the feature groups may include a plurality of feature values determined from individual features. The individual features may include one or more spatial features of the current frame and one or more temporal features of the current frame as compared with previously evaluated temporal features of a previous reference frame. A determination of whether a scene change has occurred at the current frame may be made based at least in part on a majority vote among the plurality of feature groups. 1. A video processing apparatus , comprising:one or more processors;one or more memory stores communicatively coupled to the one or more processors; evaluate a current frame based at least in part on a plurality of feature groups, wherein each of the feature groups includes a plurality of feature values determined from individual features, wherein the individual features include one or more spatial features of the current frame and one or more temporal features of the current frame as compared with previously evaluated temporal features of a previous reference frame; and', 'determine whether a scene change has occurred at the current frame based at least in part on a majority vote among the plurality of feature groups., 'a scene change detector communicatively coupled to the one or more processors, the scene change detector to2. The apparatus of claim 1 , wherein the one or more temporal features include one or more of the following features: one or more temporal differentials of the spatial features of the current frame as compared with spatial features of the previous reference frame claim 1 , one or more basic temporal features of the current frame as compared to the previous reference frame claim 1 , one or more temporal differentials of the temporal features of the current ...

PERSONALIZED MULTIGRANULARITY VIDEO SEGMENTING

The invention pertains to method for segmenting an audiovisual content in a semantic manner and in quick way. To achieve that, pre-segmentation data are generated offline and retrieved by an end user. At the level of the end user, a step of clustering segments is performed. The invention allows also to approach a desired semantic granularity by modifying a clustering threshold. The invention also allows to quickly generate a semantic segmenting for a segment, which allows to the user to quickly browse the audiovisual content. 16-. (canceled)7. A method for segmenting an audiovisual content , comprising:retrieving, upon request by a receiver, pre-segmentation data representative of similarity values between a plurality of shots of the audiovisual content;clustering, in the receiver, contiguous shots having a similarity value smaller than an initial threshold similarity value into clustered segments;selecting one clustered segment;detecting a new plurality of shots in the clustered segment;determining similarity values between the shots of the new plurality of shots; andclustering, in the receiver, the contiguous shots belonging to the new plurality of shots and having a similarity value smaller than a second threshold similarity value, the second threshold similarity value being smaller than the initial threshold similarity value.8. The method according to claim 7 , wherein the pre-segmentation data are retrieved from a server.9. The method according to claim 7 , wherein the pre-segmentation data are retrieved from a physical medium.10. The method according to claim 7 , comprising modifying the initial threshold similarity value before the clustering step.11. The method according to claim 10 , comprising modifying the second threshold similarity value.12. The method according to claim 8 , comprising modifying the initial threshold similarity value before the clustering step.13. The method according to claim 12 , comprising modifying the second threshold similarity ...

PERSONAL VIDEO RECORDER FUNCTIONALITY FOR PLACESHIFTING SYSTEMS

PVR functionality is enabled on a media player of a placeshifting system, which allows a user to record media programs from locations that are physically remote from a source of the media programs. The media player may receive program schedule information and present the program schedule information to the user. Based on user input, the media player identifies a media program and associated schedule information. When the media program is scheduled to play, the placeshifting device directs a media recording device to receive the media program and to store the program. The placeshifting device may digitize, transcode, and/or transrate the media program, if necessary, and transmit the media program to the remote device for playback. 1. A system to placeshift video content to a remote device via a network , the system comprising:a receiver configured to receive the video content;a recorder configured to record at least a portion of the video content received via the receiver in storage, wherein the recorder is responsive to first instructions received via the network from the remote device that identify the recorded portion of the video content; anda placeshifter that transmits, responsive to second instructions received from the remote device via the network, the recorded portion of the video content to the remote device via the network.2. The system of wherein the media receiver receives broadcast television content.3. The system of wherein the receiver receives television content via a source on the network.4. The system of wherein the receiver is a media source that receives television content from a storage medium.5. The system of wherein the storage is located at the system.6. The system of wherein the storage is remotely located from the system.7. The system of wherein the video content is received at the media receiver in a television broadcast format.8. The system of wherein the video content is stored in the storage using the television broadcast format.9. The ...

Video Management

The disclosure relates to a method of processing a sequence of image frames to reduce its length. One implementation may involve extracting coefficients (e.g., Discrete Cosine Transform coefficients) from components of individual frames, and comparing the resulting coefficients for sequential frames to identify frames having the least change from a prior frame. Also, scene change values for each frame may be calculated and placed in a sorted list to facilitate identification of frames for removal. Frame removal may be conducted in rounds, where a group of pictures (GOP) may only have one frame removed for any given round. 1ranking, according to scene change values, a plurality of image frames in a sequence of image frames;shortening the sequence of image frames by removing, from an interior portion of the sequence of image frames and based on the ranking, one or more of the image frames;in association with the shortening, appending one or more blank frames to a beginning or an end of the shortened sequence of image frames; andtransmitting an updated sequence of image frames, wherein the updated sequence of image frames is the sequence of image frames having the appended one or more blank frames.. A method comprising: This present application is a continuation of U.S. patent application Ser. No. 14/263,459 entitled “Video Management” filed on Apr. 28, 2014, of which is hereby incorporated by reference in its entirety.Advances in data transmission technologies have allowed content providers to transmit multiple streams of content to users, and hundreds of channels of television programming can be delivered. In some cases, a user's viewing experience may automatically hop from one channel to another. For example, when a television program enters a commercial break, the ensuing commercials might actually be carried on a different channel or datastream, and the viewer's device (unbeknownst to the viewer) may quickly switch tuning to the different channel for the duration ...

COLLECTING AND VIEWING THREE-DIMENSIONAL SCANNER DATA WITH USER DEFINED RESTRICTIONS

A method displays images of a scene with restrictions. The method includes measuring a first plurality of 3D coordinates and a second plurality of 3D coordinates with a 3D measuring instrument at a first position and a second position. The first plurality of 3D coordinates and the second plurality of 3D coordinates are registered together in a common frame of reference. A trajectory is defined within the scene that includes a plurality of trajectory points, the plurality of trajectory points including a first trajectory point and a second trajectory point. At least one restriction is defined at the first trajectory point. A plurality of 2D images are generated at each trajectory point, a first 2D image is associated with the first trajectory point. The first 2D image is changed based on the at least one restriction. The first 2D image is displayed on a display device. 1. A method of interactively displaying panoramic images of a scene , the method comprising:measuring a first plurality of 3D coordinates with a 3D measuring instrument at a first position;measuring a second plurality of 3D coordinates with the 3D measuring instrument at a second position different than the first position;registering the first plurality of 3D coordinates and the second plurality of 3D coordinates together in a common frame of reference;defining a trajectory within the scene, the trajectory including a plurality of trajectory points, the plurality of trajectory points including a first trajectory point and a second trajectory point;defining at least one restriction at the first trajectory point;generating along the trajectory a plurality of two-dimensional (2D) images at each trajectory point, the plurality of 2D images includes a first 2D image associated with the first trajectory point;changing the first 2D image based on the at least one restriction; anddisplaying the first 2D image on a display device of the first trajectory point in response to an input from a user.2. The method of ...

EVENT CAMERA HARDWARE

A method of producing an image frame from event packets received from an event camera comprises: forming a tile buffer sized to accumulate event information for a subset of image tiles, the tile buffer having an associated tile table that determines a mapping between each tile of the image frame for which event information is accumulated in the tile buffer and the image frame. For each event packet: an image tile corresponding to the pixel location of the event packet is identified; responsive to the tile buffer storing information for one other event corresponding to the image tile, event information is added to the tile buffer; and responsive to the tile buffer not storing information for another event corresponding to the image tile and responsive to the tile buffer being capable of accumulating event information for at least one more tile, the image tile is added to the tile buffer. 1. A method of producing an image frame from a series of event packets received from an event camera , each event packet including event information indicating an x ,y pixel location of said event camera , an indication of a change of detected light intensity incident at said x ,y pixel location and an event cycle at which said event occurred , the image frame being defined by an array of tiles , each tile corresponding to a plurality of pixel locations , the method comprising:forming a tile buffer of memory sized to accumulate event information for a subset of image tiles, the tile buffer having an associated tile table that determines a mapping between each tile of the image frame for which event information is accumulated in the tile buffer and the image frame;{'claim-text': ['identifying an image tile corresponding to the pixel location of the event packet;', 'responsive to the tile buffer storing information for at least one other event corresponding to said image tile, adding the event information to the tile buffer;', 'responsive to the tile buffer not storing information for ...

Scene-Change Detection Using Video Stream Pairs

A scene change is determined using a first and a second video signal, each representing the same scene or content, but at a different color grade (such as dynamic range). A set of prediction coefficients is generated to generate prediction signals approximating the first signal based on the second signal and a prediction model. A set of prediction error signals is generated based on the prediction signals and the first signal. Then, a scene change is detected based on the characteristics of the prediction error signals. Alternatively, a set of entropy values of the difference signals between the first and second video signals are computed, and a scene change is detected based on the characteristics of the entropy values. 1. A method for scene change detection , the method comprising:{'b': 102', '112, 'accessing a first video signal () and a second video signal (), wherein both the first video signal and the second video signal represent the same video content but at a different color grade;'}for a sequence of consecutive frames in the first and second video signals:{'b': '310', 'computing () prediction coefficients for a prediction model to generate predicted frames of the first video signal given data of the second video signal;'}{'b': '315', 'computing () prediction errors signals between the generated predicted frames and the corresponding frames of the first input signal; and'}{'b': 320', '320, 'determining () a scene change in the sequence of the consecutive frames () based on the prediction error signals.'}2. The method of claim 1 , wherein a different color grade comprises a difference in the dynamic range between the first and second video signals.3. The method of claim 2 , wherein the first video signal has a higher dynamic range than the second video signal.4. The method of claim 1 , wherein determining a scene change in the sequence of the consecutive frames based on the prediction error signals comprises applying a one-dimensional or a two-dimensional ...

PRACTICAL TEMPORAL CONSISTENCY FOR VIDEO APPLICATIONS

A video sequence having a plurality of frames is received. A feature in a first frame from the plurality of frames and a first position of the feature in the first frame are detected. The position of the feature in a second frame from the plurality of frames is estimated to determine a second position. A displacement vector between the first position and the second position is also computed. A plurality of content characteristics is determined for the first frame and the second frame. The displacement vector is spatially diffused with a spatial filter over a frame from the plurality of frames to generate a spatially diffused displacement vector field. The spatial filter utilizes the plurality of content characteristics. A temporal filter temporally diffuses over a video volume the spatially diffused displacement vector field to generate a spatiotemporal vector field. The temporal filter utilizes the plurality of content characteristics. 1. A computer program product comprising a computer readable storage device having a computer readable program stored thereon , wherein the computer readable program when executed on a computer causes the computer to:receive a video sequence having a plurality of frames;detect a feature in a first frame from the plurality of frames and a first position of the feature in the first frame;estimate the position of the feature in a second frame from the plurality of frames to determine a second position;compute a displacement vector between the first position and the second position;determine a plurality of content characteristics for the first frame and the second frame;spatially diffuse the displacement vector with a spatial filter over a frame from the plurality of frames to generate a spatially diffused displacement vector field, the spatial filter utilizing the plurality of content characteristics; andtemporally diffuse over a video volume, with a temporal filter, the spatially diffused displacement vector field to generate a ...

Content Segmentation and Time Reconciliation

Systems, devices and methods are described herein for segmentation of content, and more specifically for segmentation of content in a content management system. In one aspect, a method may include receiving content associated with speech, text, or closed captioning data. The speech, the text, or the closed captioning data may be analyzed to derive at least one of a topic, subject, or event for at least a portion of the content. The content may be divided into two or more content segments based on the analyzing. At least one of the topic, the subject, or the event may be associated with at least one of the two or more content segments based on the analyzing. At least one of the two or more content segments may then be published such that each of the two or more content segments is individually accessible. 1. A method , comprising:obtaining a content item of a first presentation, the first presentation being linked to a presentation template;segmenting, in real-time, the content item such that a plurality of segments becomes available for publishing across a plurality of online properties;displaying, in a first online property at a first user interface of a first user device, the first presentation;determining, with respect to the segments, differences between the first presentation and the presentation template;creating a second presentation based on the presentation template by updating the presentation template with the determined differences; anddisplaying, in a second online property at a second user interface of a second user device, the second presentation.2. The method of claim 1 , further comprising:gracefully failing in the creation by leaving a previous presentation in place at the second user interface.3. The method of claim 1 , wherein the creating is performed by copying a file structure of the presentation template from an environment of the first user device to an environment of the second user device.4. The method of claim 1 , wherein each of the ...

TEMPORAL ALIGNMEN SYSTEM AND METHOD

A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S. . . Sand using average picture level in determining whether data sets within a particular frame are misaligned. 1. A method for aligning video signal portions , the method comprising the steps of:providing an inherent video signal feature in a video signal and transporting parts of the video signal along multiple links;in plural links, comparing temporal alignment of a change of state of the feature; and,where misalignment is found, changing the temporal alignment of one or more transported signals.2. The method of wherein the video signal is a Serial Digital Interface (“SDI”) signal.3. The method of further comprising the steps of:compressing the video signal before transporting the video signal along multiple links and decompressing the video signal after transporting the video signal.4. The method of wherein the video signal feature is related to average picture level (APL).5. The method of wherein the change of state corresponds to a scene cut.6. The method of further including the steps of:monitoring the transported parts of the video signal along multiple links; and,based on the monitoring, varying transport rates on one or more links to change the temporal alignment of one or more transported signals.7. The method of further including the steps of:monitoring a video signal source; and,based on the monitoring, varying one or more source data rates to change the temporal alignment of one or more transported signals.8. A video processing device comprising:a transport block and a monitor block;the device for use with a source and a destination;four source output signals containing information from a first video frame;the transport block for transporting signals derived from the four source output signals;the monitor block for monitoring the ...

METHODS AND APPARATUS TO DETECT COMMERCIAL ADVERTISEMENTS ASSOCIATED WITH MEDIA PRESENTATIONS

Methods and apparatus to detect commercial advertisements associated with media presentations are disclosed. An example method includes determining an amount of audio randomness an inter-segment audio frame. The example method also includes indicating the inter-segment audio frame as occurring at a commercial transition based on the amount of audio randomness of the at least one inter-segment audio frame. 1. A method to detect a commercial transition associated with a media presentation , the method comprising:determining an amount of audio randomness an inter-segment audio frame; andindicating the inter-segment audio frame as occurring at a commercial transition based on the amount of audio randomness of the at least one inter-segment audio frame.2. A method as defined in claim 1 , wherein determining the amount of audio randomness comprises:determining a quantity of unique time-based distances between at least one of a plurality of amplitude peaks or a plurality of amplitude troughs in inter-segment audio frame; anddetermining a random-factor ratio by dividing the quantity of unique time-based distances by a quantity of total time-based distances between the at least one of the amplitude peaks or the amplitude troughs.3. A method as defined in claim 1 , wherein indicating the inter-segment audio frame as occurring at the commercial transition based on the amount of audio randomness of the inter-segment audio frame comprises indicating the inter-segment audio frame as occurring at the commercial transition when the amount of audio randomness exceeds a threshold.4. A method as defined in claim 1 , wherein the commercial transition comprises at least one of a transition between two commercial advertisements or a transition between a commercial advertisement and a media program.5. A method as defined in claim 1 , wherein the inter-segment audio frame is reconstructed from at least one of a television transmission claim 1 , an internet-streamed video claim 1 , or a ...

COLLECTING AND VIEWING THREE-DIMENSIONAL SCANNER DATA IN A FLEXIBLE VIDEO FORMAT

A method interactively displays panoramic images of a scene. The method includes measuring 3D coordinates of the scene with a 3D measuring instrument at a first position and a second position. The 3D coordinates are registering into a common frame of reference. Within the scene, a trajectory includes a plurality of trajectory points. Along the trajectory, 2D images are generated from the commonly registered 3D coordinates. A user interface provides a trajectory display mode that sequentially displays a collection of 2D images at the trajectory points. The user interface also provides a rotational display mode that allows a user to select a desired view direction at a given trajectory point. The user selects the trajectory display mode or the rotational display mode and sees the result shown on the display device. 1providing a display device;measuring a first plurality of 3D coordinates of the scene with a 3D measuring instrument placed in a first frame of reference, the 3D instrument being placed in a first position;measuring a second plurality of 3D coordinates of the scene with the 3D measuring instrument placed in a second frame of reference, the 3D instrument being placed in a second position different than the first position;registering the first plurality of 3D coordinates and the second plurality of 3D coordinates together in a common plurality of 3D coordinates, the common plurality of 3D coordinates being in a common frame of reference;providing a trajectory within the scene, the trajectory including a collection of trajectory points;generating along the trajectory a plurality of two-dimensional (2D) images at each trajectory point, the 2D images based at least in part on the common plurality of 3D coordinates, the 2D images constructed to represent panoramic views at the trajectory points, each of the panoramic views having an observer field of view (FOV), each of the panoramic views being viewable from any of a plurality of observer view directions; ...

3d video format detection

A video signal is processed in a video device ( 50 ). The video signal transfers video data representing either three dimensional video [3D] content formatted according to a 3D format or 2D content formatted according to a 2D format. The video signal has a 2D frame and a control structure of a 2D format for being compatible with existing distribution systems. The device has a processor ( 52 ) for providing a 3D status signal indicative of the format of the video signal. The processor determines a respective format score for at least one of the possible 3D formats by processing the video data according to respective predetermined format properties for deriving and comparing respective 3D subframes, and sets the 3D status signal based on an assessment of the format score to indicate the format of the video signal. Advantageously the 3D format is detected automatically and a 3D display can be controlled accordingly.

METHODS AND SYSTEMS FOR GENERATING AMBIENT LIGHT EFFECTS BASED ON VIDEO CONTENT

Methods and systems for producing ambient light effects based on video content are provided. A method of producing an ambient light effect includes providing a receiving device including a processor configured to parse incoming video content and receiving the video content including a plurality of scenes at the receiving device. The method further includes parsing the incoming video content and detecting at least one scene in the video content for association with at least one ambient light effect. The method also includes generating a command specifying at least one ambient light effect to be associated with at least one scene and sending the command from the receiving device to at least one lighting device in communication with the receiving device to generate at least one ambient light effect associated with at least one scene when the scene is displayed to a user. 115-. (canceled)16. A receiving device for producing an ambient light effect , the receiving device comprising:a processor configured to parse incoming video content including a plurality of scenes, the processor programmed to:parse the incoming video content and detect at least one scene in the video content for association with at least one ambient light effect;generate a command specifying the at least one ambient light effect to be associated with the at least one scene; andsend the command from the receiving device to the at least one lighting device in communication with the receiving device to generate the at least one ambient light effect associated with the at least one scene when the at least one scene is displayed to a user.17. The receiving device of claim 16 , wherein the receiving device is at least one of a television claim 16 , set-top box claim 16 , disc player claim 16 , personal computer claim 16 , laptop claim 16 , tablet computer claim 16 , and mobile phone.18. The receiving device of claim 16 , wherein the processor is one of a stand-alone decoder and a decoder incorporated into a ...

DETECTION AND MEASUREMENT OF VIDEO SCENE TRANSITIONS

One embodiment of the present invention sets forth a technique for detecting a video transition. The technique involves calculating a first average pixel intensity for each pixel grouping included in a first plurality of pixel groupings, calculating a second average pixel intensity for each pixel grouping included in a second plurality of pixel groupings, and calculating a third average pixel intensity for each pixel grouping included in a third plurality of pixel groupings. The technique further involves comparing a first average pixel intensity to a corresponding second average pixel intensity to identify a first trend, comparing a second average pixel intensity to a corresponding third average pixel intensity to identify a second trend, and comparing the first trend to the second trend to determine whether a match exits. Finally, the technique involves determining that a video transition is occurring based on a number of matches. 1. A method of detecting a video transition , the method comprising:calculating a first average pixel intensity for each pixel grouping included in a first plurality of pixel groupings fetched from a plurality of locations in a first video frame;calculating a second average pixel intensity for each pixel grouping included in a second plurality of pixel groupings fetched from the plurality of locations in a second video frame;calculating a third average pixel intensity for each pixel grouping included in a third plurality of pixel groupings fetched from the plurality of locations in a third video frame; comparing the first average pixel intensity to the corresponding second average pixel intensity to identify a first trend;', 'comparing the second average pixel intensity to the corresponding third average pixel intensity to identify a second trend; and', 'comparing the first trend to the second trend to determine whether a match exits; and, 'for each location in the plurality of locationsdetermining that a video transition is occurring ...

Information processing device, method of information processing, program, and image display system

[Object] The present invention aims to provide an information processing device capable of providing an image that allows a user to experience high presence or immersion depending on contents of an image. [Solution] Provided is an information processing device ( 100 ) including: an image analysis unit ( 115 ) configured to analyze a content of an input image projected by a projection device ( 10 ); and a projection position determination unit ( 116 ) configured to determine a projection area in a projection space onto which the input image is projected by the projection device on the basis of an analysis result obtained by analyzing the input image.

Method of determining motion vectors for a bi-predictive image block

In one embodiment, the method includes determining, first and second reference pictures; obtaining a type of the first reference picture; and determining motion vectors of the bi-predictive image block based on the type of the first reference picture. The type is one of a long-term type and a short-term type, and characterizes a temporal distance of the first reference picture with respect to the bi-predictive block. The motion vectors of the bi-predictive image block are determined according to a first set of expressions if the first reference picture is of the short-term type, and according to a second set of expressions if the first reference picture is of the long-term type. The second set of expressions is different than the first set of expressions. The method further includes decoding, by the moving picture coding system, the bi-predictive image block based on the determined motion vectors.

Method and System for Image Alteration

Methods and systems for image alteration. A video signal having multiple images is accessed, and images are altered to blur the video signal based on a subscriber alteration request. The alteration request is selectable among a partial blur, a full blur, and a restore image. The request includes instructions to selectably blur a partial portion of an image by stretching a first portion, without stretching a second portion. The alteration includes accessing an alternation setting selected from a cycle of alteration settings, a group of preprogrammed alteration settings and combinations thereof. The blurred video signal is provide for presentation by subscriber equipment. The video signal is restored in response to a restorative event detected within the blurred video signal. The detecting of the restorative event includes determining a location of a scene change in the blurred video signal.

AUTOMATED CHANNEL SWITCHING

Systems, devices and methods are described to automatically detect scene changes in television programming streams received by a set top box or other television receiver, to classify the detected scenes, and to automatically provide the classified scenes to a viewer if the scenes are determined to be of interest to the viewer. 1. A method executable by a media device that provides video programming comprising a first program and a second program for a viewer , the method comprising:initially providing the first program as an output for presentation to the viewer;receiving sequential frames of the second program at the media device during presentation of the first program;identifying changes between a current video frame of the second program and a prior video frame of the second program by the media device;automatically identifying a different scene of the second program by the media device if the changes between the current frame and the prior video frame exceed a threshold value; andin response to identifying the different scene of the second program, the media device automatically switching to output the second program for presentation of the different scene to the viewer.2. The method of further comprising the media device automatically classifying the different scene of the second program.3. The method of further comprising initially obtaining viewer preferences for viewing scenes of the second program.4. The method of further comprising simultaneously identifying changes between frames of both the first program and the second program.5. The method of wherein the automatic switching comprises automatically switching between the first program and the second program based upon the viewer preferences.6. The method of wherein the first program is obtained from a digital video recorder and the second program is obtained from a live television broadcast.7. The method of wherein the automatically switching comprises automatically switching to provide the live ...

Image processing apparatus, image processing system, image processing method, and storage medium

An image processing apparatus configured to extract an object region corresponding to a predetermined object from an extraction target image based on image capturing performed by an image capturing apparatus includes an acquisition unit configured to acquire information about an image to be displayed on a display surface located in an image capturing range of the image capturing apparatus, an identification unit configured to identify, as a region from which extraction of the object region is not to be performed, a region corresponding to the display surface in the extraction target image, based on the information acquired by the acquisition unit, and an extraction unit configured to extract the object region formed by part of a plurality of pixels not included in the region identified by the identification unit among a pixel included in the extraction target image.

Systems and methods for producing a flipbook

A system for producing a flipbook includes a processor that receives a video comprising a plurality of frames, selects a start frame and an end frame, and a plurality of frames therebetween. The processor can analyze the frames of the segment to determine an average rate of change of the plurality of frames and a threshold of relative image difference based on the average rate of change of the plurality of frames and a baseline frame rate. The processor can select, based on the results of its analysis, a plurality of selected frames, each of the selected frames being separated from two other selected frames by a sub-segment of the video, wherein each pair of adjacent frames comprises a relative image difference above the threshold and wherein each selected frame meets quality criteria not met by one or more local frames. The processor arranges the selected frames in temporal order, adds a protruding edge to each of the selected frames, and transmits data representing each of the selected frames to a printer for printing and binding a flipbook.

TEMPORAL ALIGNMENT SYSTEM AND METHOD

A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S. . . Sand using average picture level in determining whether data sets within a particular frame are misaligned. 1. A method for aligning video signal portions , the method comprising the steps of:providing a video camera for acquiring a video signal derived from an image and having an inherent video signal feature;transporting parts of the video signal along plural links;in plural links, comparing temporal alignment of a change of state of the feature; and,where misalignment is found, changing the temporal alignment of one or more transported signals.2. The method of wherein each link transports a unique portion of the image.3. The method of wherein each link transports a different area of the image.4. The method of wherein each link transports a similar area of the image.5. The method of wherein the video signal is a Serial Digital Interface (“SDI”) signal.6. The method of further comprising the steps of:compressing the video signal before transporting the video signal along multiple links and decompressing the video signal after transporting the video signal.7. The method of wherein the video signal feature is related to average picture level (APL).8. The method of wherein the change of state corresponds to a scene cut.9. The method of further including the steps of:monitoring the transported parts of the video signal along multiple links; and,based on the monitoring, varying transport rates on one or more links to change the temporal alignment of one or more transported signals.10. The method of further including the steps of:monitoring a video signal source; and,based on the monitoring, varying one or more source data rates to change the temporal alignment of one or more transported signals.11. A video signal alignment apparatus comprising:a video ...

IMAGE PROCESSING SYSTEM AND IMAGE PROCESSOR

An image processing system is provided. The image processing system includes a sensing unit configured for detecting environmental change and generating environmental information; an analyzing unit electrically connected to the sensing unit and configured for analyzing whether to generate a enable signal according to the environmental information; an image capturing unit electrically connected to the analyzing unit and configured for capturing an environment image according to the enable signal; a processing unit electrically connected to the image capturing unit and configured for performing an image processing to the environment image to generate an object image; and a display unit electrically connected to the processing unit and configured for displaying the object image. An image processor adapted to the image processing system is also provided. 1. An image processing system , comprising:a sensing unit, configured for detecting environmental change and generating environmental information;an analyzing unit, electrically connected to the sensing unit and configured for analyzing whether to generate an enable signal according to the environmental information;an image capturing unit, electrically connected to the analyzing unit and configured for capturing an environment image according to the enable signal;a processing unit, electrically connected to the image capturing unit and configured for performing an image processing to the environment image to generate an object image; anda display unit, electrically connected to the processing unit and configured for displaying the object image.2. The image processing system according to claim herein the image processing system further comprises:a memory unit electrically connected to the image capturing unit and the processing unit, and configured for storing the environment image, the processing unit obtains the environment image from the memory unit, performs the image processing on the environment image to generate ...

METHOD AND DEVICE FOR INVERSE TONE MAPPING

A method for converting a standard dynamic range (SDR) sequence into a high dynamic range (HDR) sequence is described. The method includes determining (S) successive shots in the SDR sequence by cut detection, detecting (S) if the SDR sequence comprises a sub-sequence of at least two successive short shots having a duration lower than D, said subsequence comprising at least one bright shot having a luminance and a size greater than Land SZrespectively, and mapping (S) the luminance range of bright shots of the detected subsequence from the low dynamic range to a first high dynamic range and mapping the other shots of the SDR sequence from the standard dynamic range to a second high dynamic range in order to generate the HDR sequence, the first high dynamic range having a maximal value Llower than that of the second high dynamic range L. 1) A method for converting a video sequence having a standard dynamic range , called SDR sequence , into video sequence having a high dynamic range , called HDR sequence , comprising the step of:{'b': '1', 'determining (S) successive video shots in the SDR sequence by cut detection, a video shot being a portion of the SDR sequence between two successive cuts, each video shot having a duration,'}{'b': '2', 'sub': 1', '1', '1, 'detecting (S) if the SDR sequence comprises a sub-sequence of at least two successive video shots, called short video shots, having a duration equal to or lower than a first duration threshold (d), said subsequence further comprising at least one video shot, called bright video shot, comprising at least one key frame including a bright area having a luminance value greater than a luminance threshold (L) and a size greater than a size threshold (SZ),'}{'b': '3', 'sub': max1', 'max2, 'mapping (S) the luminance range of bright video shots of the detected subsequence from the standard dynamic range to a first high dynamic range and mapping the other shots of the SDR sequence from the low dynamic range to a second ...

AUTOFOCUSING A MACRO OBJECT BY AN IMAGING DEVICE

A method and device for autofocusing a macro object by an imaging device is provided. The imaging device includes a lens. In one aspect, the method includes: providing two or more focus perimeters in a viewfinder; obtaining a group of focus values, the group of focus values including at least one focus value associated with each of the two or more focus perimeters, each focus value in the group of focus values including a magnitude and a direction for causing movement of the lens; comparing focus values in the group of focus values to identify a macro object focus value; and in response to identifying the macro object focus value, determining autofocus settings based on the macro object focus value. 1. A method of autofocusing a macro object by an imaging device , the imaging device including a lens , the method comprising:providing two or more focus perimeters in a viewfinder;obtaining a group of focus values, the group of focus values including at least one focus value associated with each of the two or more focus perimeters, each focus value in the group of focus values including a magnitude and a direction for causing movement of the lens;comparing focus values in the group of focus values to identify a macro object focus value; andin response to identifying the macro object focus value, determining autofocus settings based on the macro object focus value.2. The method of claim 1 , wherein determining autofocus settings based on the macro object focus value further comprises configuring the lens based on the determined autofocus settings.3. The method of claim 1 , wherein identifying the macro object focus value comprises identifying a focus value in the group of focus values associated with an object being photographed nearest to the lens.4. The method of claim 3 , wherein comparing the focus values in the group of focus values further comprises:ordering the focus values in the group of focus values;determining a sub-group of focus values within a range of the ...

Scheme for determining the locations and timing of advertisements and other insertions in media

A non-transitory computer readable storage medium stores one or more computer programs adapted to cause a processor based system to execute steps that include analyzing an image, identifying one or more faces in the image using a face recognition technique, designating at least one of the identified faces collectively as a first area of interest, and determining whether an insertion area exists in the image where additional content can be inserted without obstructing the first area of interest. Another computer program is adapted to cause a processor based system to execute steps that include determining whether the insertion area can be divided into two or more regions based on color. Methods and processor based apparatuses that perform one or more of these steps are also disclosed.

VIDEO SIGNAL PROCESSING DEVICE, VIDEO FREEZE DETECTION CIRCUIT AND VIDEO FREEZE DETECTION METHOD

A video signal processing device includes: a video signal dividing unit configured to divide a video signal into first to k-th (k is an integer of 2 or greater) partial video signals for each frame; a video change detection unit configured to determine, for each of the first to k-th partial video signals, whether or not a video based on the partial video signals has changed between respective frames, and generate first to k-th video change detection signals representing the respective detection results; and a video sameness determination unit configured to generate a video sameness signal indicating that the video signal has not changed, if the number of video change detection signals that indicate the video has not changed, among the first to k-th video change detection signals, is greater than a prescribed number. 1. A video signal processing device , comprising:a video signal dividing unit configured to receive a video signal constituted of a series of frames, and divide the video signal into first to k-th (k is an integer of 2 or greater) partial video signals for respective frames;a video change detection unit configured to determine, for each of the first to k-th partial video signals, whether or not a video based on the partial video signals has changed between respective frames, and generate first to k-th video change detection signals representing respective detection results; anda video sameness determination unit configured to generate a video sameness signal indicating that the video has not changed, if a number of video change detection signals that indicate the video based on the partial video signals has not changed, among the first to k-th video change detection signals, is greater than a prescribed number.2. The video signal processing device according to claim 1 , further comprising a continuation determination unit configured to output a freeze detection signal that indicates the video signal is frozen when the video sameness signal continues over ...

TEMPORAL ALIGNMENT SYSTEM AND METHOD

A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S. . . Sand using average picture level in determining whether data sets within a particular frame are misaligned. 1. A temporal alignment device comprising:an average picture level monitor for monitoring average picture level in each of multiple data paths interconnecting a source and a destination;wherein signals derived from each of multiple video frames are transported on respective ones of the multiple data paths such that during transport a temporal misalignment that occurs is detected when a difference among the average picture levels exists.2. The temporal alignment device of wherein the difference among average picture levels exists in a single frame.3. The temporal alignment device of wherein average picture levels associated with one of the transported frames are equal before transport and unequal after transport.4. The temporal alignment device of wherein the frame with associated average picture levels that are equal is created by a video transition.5. The temporal alignment device of wherein the video transition is a video cut.6. A method of detecting temporal misalignment when multiple data paths transport each of multiple video frames claim 4 , the method comprising steps of:providing an average picture level monitor for monitoring average picture level in each of multiple data paths interconnecting a source and a destination;wherein signals derived from each of multiple video frames are transported on respective ones of the multiple data paths such that during transport a temporal misalignment that occurs is detected when a difference among the average picture levels exists.7. The temporal alignment method of wherein the difference among average picture levels exists in a single frame.8. The temporal alignment method of wherein average ...

System and Methods for Generating Scene Stabilized Metadata

Methods and systems for generating and applying scene-stable metadata for a video data stream are disclosed herein. A video data stream is divided or partitioned into scenes and a first set of metadata may be generated for a given scene of video data. The first set of metadata may be any known metadata as a desired function of video content (e.g., luminance). The first set of metadata may be generated on a frame-by-frame basis. In one example, scene-stable metadata may be generated that may be different from the first set of metadata for the scene. The scene-stable metadata may be generated by monitoring a desired feature with the scene and may be used to keep the desired feature within an acceptable range of values. This may help to avoid noticeable and possibly objectionably visual artifacts upon rendering the video data. 1. A method for using scene-stable metadata in a video data stream , the method comprising:dividing the video data stream into a set of scenes; computing at least one of a min, mid and max luminance for each frame in a scene; and', 'computing at least one of a min, mid and max luminance for the scene;, 'generating a first metadata associated with a first scene within the set of scenes, wherein generating the first metadata associated with the first scene within the set of scenes comprisesgenerating scene stable metadata; andassociating the scene stable metadata with said first scene.2. The method of claim 1 , wherein associating the scene stable metadata with said first scene further comprises:repeating the scene stable metadata for every frame within said first scene.3. The method of wherein dividing a video data stream into a set of scenes further comprises:deriving the location of scene cuts from an edit decision list.4. The method of wherein deriving the location of scene cuts from the edit decision list further comprises:deriving the location of scene cuts manually or automatically by a processor.5. The method of claim 1 , further comprising ...

TEMPORAL ALIGNMENT SYSTEM AND METHOD

A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S. . . Sand using average picture level in determining whether data sets within a particular frame are misaligned. 1. A method for aligning video signal portions , the method comprising the steps of:providing a video signal with an inherent video signal feature;dividing the video signal for transport along multiple links;transporting the video signal along the links;near a transport terminus, comparing the temporal alignment of a discontinuity of the feature in each link; and,making a temporal correction when one of the discontinuities falls temporally behind another of the discontinuities.2. The method of wherein the video signal is a Serial Digital Interface (“SDI”) signal.3. The method of wherein the video signal is a 4K signal.4. The method of wherein:the divided video signals result from an image conveyed by the video signal that is divided into panes; and,the data associated with each pane is transported along a respective one of the multiple links.5. The method of wherein discontinuities arise from average picture level changes.6. The method of wherein the average picture level changes result from scene cuts.7. The method of wherein each pane reproduces the entirety of the image conveyed by the video signal at a reduced resolution.8. The method of wherein a video camera provides four video output signals that together comprise the image conveyed by the video signal.9. A system for detecting temporal misalignment in video frames that are divided for transport claim 7 , the system comprising:{'sub': 1', 'N, 'a signal divider for dividing a single signal S into N signal portions S. . . S;'}each signal portion for carrying a portion of the same video frame;N transport links, each link for receiving a respective signal Sx from the signal divider and for ...

UPDATING REGIONS FOR DISPLAY BASED ON VIDEO DECODING MODE

Techniques are described in which a video decoding mode is used to determine which regions of a picture need to be composed. If a region of a current picture is decoded in skip mode with the reference picture of the skip mode being a previous picture that is displayed immediately prior to the current picture, then pixel values for that region may not need to be retrieved from system memory. 1. A method of composing images for display , the method comprising:identifying, with processing circuitry, one or more first regions in a current picture that were generated by copying pixel values of one or more respective co-located regions in a previous picture that is displayed immediately prior to the current picture;identifying, with the processing circuitry, one or more second regions of the current picture that changed relative to the previous picture based on the identified one or more first regions in the current picture; andproviding, with the processing circuitry, instructions to a display processor to retrieve pixel values of the identified one or more second regions of the current picture that changed relative to the previous picture from a system memory, and no pixel values for the identified one or more first regions from the system memory, for composing the current picture with one or more layers of image content to generate a composed image.2. The method of claim 1 , further comprising:providing instructions to the display processor to output information used to display the composed image.3. The method of claim 1 , further comprising:identifying an updating region based on a union of the identified one or more second regions of the current picture that changed relative to the previous picture and respective regions of the one or more layers of image content having image content that changed relative to a previous composed image that is displayed immediately prior to the display of the composed image; andproviding instructions to the display processor to compose ...

Electronic device and method for controlling the same, and storage medium

Disclosed is an electronic device providing optimal image quality according to an image characteristic. The electronic device includes: interface circuitry and a processor configured to correct an image based on a plurality of frames acquired from a signal received through the interface circuitry based on whether the image has a predefined characteristic, wherein the processor is further configured to perform recognition of the predefined characteristic based on a frame in which a pixel change between two consecutive frames among the plurality of frames is greater than or equal to a threshold.

SCHEME FOR DETERMINING THE LOCATIONS AND TIMING OF ADVERTISEMENTS AND OTHER INSERTIONS IN MEDIA

A non-transitory computer readable storage medium stores one or more computer programs adapted to cause a processor based system to execute steps that include analyzing an image, identifying one or more faces in the image using a face recognition technique, designating at least one of the identified faces collectively as a first area of interest, and determining whether an insertion area exists in the image where additional content can be inserted without obstructing the first area of interest. Another computer program is adapted to cause a processor based system to execute steps that include determining whether the insertion area can be divided into two or more regions based on color. Methods and processor based apparatuses that perform one or more of these steps are also disclosed. 126-. (canceled)27. A non-transitory computer readable storage medium storing one or more computer programs adapted to cause a processor based system to execute steps comprising:analyzing an image;identifying one or more faces in the image using a face recognition technique;determining a size of each of the identified faces;designating at least one of the identified faces collectively as a first area of interest based on the determined sizes of the identified faces and whether a face is a certain proportion to another face, wherein the certain proportion is defined by a threshold setting that is used to select faces for inclusion in the first area of interest; anddetermining whether an insertion area exists in the image where additional content can be inserted without obstructing the first area of interest.28. The non-transitory computer readable storage medium of claim 27 , wherein the step of designating at least one of the identified faces collectively as a first area of interest based on the determined sizes of the identified faces and whether a face is a certain proportion to another face comprises:selecting a largest one of the identified faces and only ones of the identified ...

MONITORING LOUDNESS LEVEL DURING MEDIA REPLACEMENT EVENT USING SHORTER TIME CONSTANT

In one aspect, an example method includes (i) determining, by a playback device, a first loudness level of a first portion of first media content from a first source while the playback device presents the first media content, with the first portion having a first length; (ii) switching, by the playback device, from presenting the first media content from the first source to presenting second media content from a second source; (iii) based on the switching, determining, by the playback device, second loudness levels of second portions of the first media content while the playback device presents the second media content, with the second portions having a second length that is shorter than the first length; and (iv) while the playback device presents the second media content, adjusting, by the playback device, a volume of the playback device based on one or more of the second loudness levels. 1. A method comprising:switching, by a playback device, from presenting first media content from a first source to presenting second media content from a second source;while the playback device presents the second media content from the second source, receiving, by the playback device, an audio signal corresponding to the first media content;receiving, by the playback device, a loudness level profile corresponding to the first media content; andwhile the playback device presents the second media content, adjusting, by the playback device, a volume of the playback device based on the loudness level profile and the audio signal.2. The method of claim 1 , further comprising aligning the audio signal and the loudness level profile.3. The method of claim 2 , wherein aligning the audio signal and the loudness level profile comprises aligning the audio signal and the loudness level profile using fingerprinting.4. The method of claim 2 , wherein aligning the audio signal and the loudness level profile comprises aligning the audio signal and the loudness level profile using a watermark.5. ...

Systems and Methods for Generating a Summary Storyboard from a Plurality of Image Frames

The present disclosure provides systems and methods that generate a summary storyboard from a plurality of image frames. An example computer-implemented method can include inputting a plurality of image frames into a machine-learned model and receiving as an output of the machine-learned model, object data that describes the respective locations of a plurality of objects recognized in the plurality of image frames. The method can include generating a plurality of image crops that respectively include the plurality of objects and arranging two or more of the plurality of image crops to generate a storyboard. 1. A computer-implemented method , the method comprising:inputting, by the one or more computing devices, a plurality of image frames into a machine-learned model;receiving, by the one or more computing devices, as an output of the machine-learned model, object data that describes respective locations of a plurality of objects recognized in the plurality of image frames;generating, by the one or more computing devices, a plurality of image crops that respectively include the plurality of objects; andarranging, by the one or more computing devices, two or more of the plurality of image crops to generate a storyboard.2. The computer-implemented method of claim 1 , further comprising:providing, by the one or more computing devices, the storyboard for display to a user.3. The computer-implemented method of claim 1 , wherein:the one or more computing devices consist of a smartphone; andthe storyboard has a storyboard aspect ratio that matches a screen aspect ratio associated with a display screen of the smartphone.4. The computer-implemented method of claim 1 , further comprising:applying, by the one or more computing devices, a stylization effect to the two or more image crops arranged to form the storyboard.5. The computer implemented method of claim 1 , further comprising claim 1 , prior to said inputting:receiving, by one or more computing devices, a video; ...

Video Management

The disclosure relates to a method of processing a sequence of image frames to reduce its length. One implementation may involve extracting coefficients (e.g., Discrete Cosine Transform coefficients) from components of individual frames, and comparing the resulting coefficients for sequential frames to identify frames having the least change from a prior frame. Also, scene change values for each frame may be calculated and placed in a sorted list to facilitate identification of frames for removal. Frame removal may be conducted in rounds, where a group of pictures (GOP) may only have one frame removed for any given round. 1. A method of managing a video stream. This present application is a continuation of U.S. patent application Ser. No. 15/632,964 entitled “Video Management” filed on Jun. 26, 2017, which is a continuation application of U.S. patent application Ser. No. 14/263,459 entitled “Video Management” filed on Apr. 28, 2014, and issued as U.S. Pat. No. 9,723,377 on Aug. 1, 2017, of which are hereby incorporated by reference in their entirety.Advances in data transmission technologies have allowed content providers to transmit multiple streams of content to users, and hundreds of channels of television programming can be delivered. In some cases, a user's viewing experience may automatically hop from one channel to another. For example, when a television program enters a commercial break, the ensuing commercials might actually be carried on a different channel or datastream, and the viewer's device (unbeknownst to the viewer) may quickly switch tuning to the different channel for the duration of the commercial, and back to the television program (or to another channel carrying another commercial) when the commercial ends. To help tuners quickly lock on to the audiovisual signals during such rapid tuning, video transmission standards call for advertisements to begin with a few moments of blank/black video and silent audio. Unfortunately, many advertisers ...

METHODS, SYSTEMS, AND MEDIA FOR DETECTING A PRESENTATION OF MEDIA CONTENT ON A DISPLAY DEVICE

Methods, systems, and media for detecting a presentation of media content on a display device are provided. In accordance with some implementations, methods for detecting a presentation of media content on a display device are provided, the methods comprising: detecting, using a light sensor, light levels in the light sensor's surroundings; generating a signal representing the light levels; detecting, using a hardware processor, at least one variation in light levels indicative of a presentation of a video scene based on the signal; detecting at least one variation in light levels indicative of a scene change subsequent to the video scene based on the signal; and determining that media content is being presented on a display device in response to detecting the variation in light levels indicative of the presentation of the video scene and the variation in light levels indicative of the scene change. 1. A system for detecting a presentation of media content on a display device , the system comprising:a memory; and receive a signal that represents detected light levels in the environment of the display device;', 'detect at least one variation in the light levels based on the received signal;', 'determine whether the at least one variation in the light levels is indicative of a presentation of a video scene; and', 'identify a media content source corresponding to the video scene being presented on the display device in response to determining that the at least one variation in the light levels is indicative of the presentation of the video scene., 'a hardware processor that, when executing computer-implemented instructions stored in the memory, is configured to2. The system of claim 1 , further comprising a sensor that is connected to the hardware processor and that detects light levels in the environment of the sensor.3. The system of claim 2 , wherein the sensor is further configured to generate the signal representing the detected light levels.4. The system of claim ...

SYSTEM AND METHOD FOR REMOTELY MONITORING AND/OR VIEWING IMAGES FROM A CAMERA OR VIDEO DEVICE

A system and method are provided for remotely monitoring images from an image capturing device. Image data from an image capturing component is received where image data represents images of a scene in a field of view of the image capturing component. The image data may be analyzed to determine that the scene has changed. A determination may be made that the scene has changed. In response to this determination being made, a communication may be transmitted to a designated device, recipient or network location. The communication may be informative that a scene change or event occurred. The communication may be in the form of a notification or an actual image or series of images of the scene after the change or event. 1. A method for operating a computing device of a user , the method being implemented using one or more processors and comprising:receiving image data from an image capturing component, wherein the image data represents one or more images of a monitored scene;providing a link to a target device;detecting selection of the link on the target device;in response to detecting selection of the link, configuring the received image data for the target device, and streaming the configured image data from the computing device to the target device over one or more networks.2. The method of claim 1 , wherein configuring the image data includes reducing a resolution of the image data received from the image capturing device.3. The method of claim 1 , wherein configuring the image data includes reducing a frame rate of a video received from the image capturing device.4. The method of claim 1 , wherein configuring the image data includes converting a video received from the image capturing device to one or more still images.5. The method of claim 1 , wherein providing a link to a target device includes generating a message for the target device claim 1 , and including the link in the message.6. The method of claim 1 , further comprising analyzing the image data ...

Scene change detection device, display device, scene change detection method, and scene change detection program

A scene change detection device includes an inter-frame difference calculation unit configured to calculate, based on an image signal, an inter-frame difference value corresponding to an inter-frame pixel value difference, and a determination unit configured to determine whether or not a target frame is the first frame in a video scene that has changed, by referring to a first value and a comparative value, the first value being an inter-frame difference value between the target frame and a frame other than the target frame, the comparative value being derived from a second value that is an inter-frame difference value between frames other than the target frame.

COLLECTING AND VIEWING THREE-DIMENSIONAL SCANNER DATA IN A FLEXIBLE VIDEO FORMAT

A method interactively displays panoramic images of a scene. The method includes measuring 3D coordinates of the scene with a 3D measuring instrument at a first position and a second position. The 3D coordinates are registering into a common frame of reference. Within the scene, a trajectory includes a plurality of trajectory points. Along the trajectory, 2D images are generated from the commonly registered 3D coordinates. A trajectory display mode sequentially displays a collection of 2D images at the trajectory points. A rotational display mode allows a user to select a desired view direction at a given trajectory point. The user selects the trajectory display mode or the rotational display mode and sees the result shown on the display device. 1. A method of interactively displaying panoramic images of a scene , the method comprising:measuring a first plurality of 3D coordinates of the scene with a 3D measuring instrument placed in a first frame of reference at a first position;measuring a second plurality of 3D coordinates of the scene with the 3D measuring instrument placed in a second frame of reference at a second position different than the first position;registering the first plurality of 3D coordinates and the second plurality of 3D coordinates together in a common frame of reference;providing a trajectory within the scene, the trajectory including a collection of trajectory points;generating along the trajectory a plurality of two-dimensional (2D) images at each trajectory point wherein the 2D images define panoramic views at each of the trajectory points;providing a rotational display mode, the rotational display mode configured to display the 2D images on a display device at a single trajectory point from a selected view direction; anddisplaying the rotational display mode on the display device in response to an input from a user.2. The method of claim 1 , wherein:the first plurality of 3D coordinates and the second plurality of 3D coordinates define a ...

Image processing apparatus and method thereof

Provided are an image processing apparatus and method. The image processing apparatus includes a decoder configured to decode image frames of an image; an image quality controller configured to obtain a genre recognition confidence of a previous image frame and a genre recognition confidence of a current image frame, and identify image quality control factor value, based on the genre recognition confidence of the previous image frame and the genre recognition confidence of the current image frame; and an image quality processor configured to image-quality process at least one of the decoded image frames by using the image quality control factor value, and output the processed at least one of the decoded image frames.

Monitoring loudness level during media replacement event using shorter time constant

In one aspect, an example method includes (i) determining, by a playback device, a first loudness level of a first portion of first media content from a first source while the playback device presents the first media content, with the first portion having a first length; (ii) switching, by the playback device, from presenting the first media content from the first source to presenting second media content from a second source; (iii) based on the switching, determining, by the playback device, second loudness levels of second portions of the first media content while the playback device presents the second media content, with the second portions having a second length that is shorter than the first length; and (iv) while the playback device presents the second media content, adjusting, by the playback device, a volume of the playback device based on one or more of the second loudness levels.

Detection of Volume Adjustments During Media Replacement Events Using Loudness Level Profiles

In one aspect, an example method includes (i) determining, by a playback device, a loudness level of first media content that the playback device is receiving from a first source; (ii) comparing, by the playback device, the determined loudness level of the first media content with a reference loudness level indicated by a loudness level profile for the first media content; (iii) determining, by the playback device, a target volume level for the playback device based on a difference between the determined loudness level of the first media content and the reference loudness level; and (iv) while the playback device presents second media content from a second source in place of the first media content, adjusting, by the playback device, a volume of the playback device toward the target volume level.

METHOD OF PROVIDING INFORMATION CONFIGURATION FUNCTION IN VIDEO PLAY DEVICE AND VIDEO PLAY DEVICE

Some embodiments of the application provide a method of providing an information configuration function in a video play device and the video play device, where the method includes: acquiring image information generated actually in a process of playing a current frame of video data in a video stream, preset image match information for matching with the image information and frame attribute information of the frame of video data, wherein the frame attribute information corresponds to a register involved in the process of playing the frame of video data; and judging whether the image match information is consistent with the image information generated actually in the process of playing the frame of video data, and if so, then configuring the frame attribute information to the register involved in the process of playing the frame of video data. 1. A method of providing an information configuration function in a video play device , the method comprising:acquiring image information generated actually in a process of playing a current frame of video data in a video stream, preset image match information for matching with the image information and frame attribute information of the frame of video data, wherein the frame attribute information corresponds to a register involved in the process of playing the frame of video data; andjudging whether the image match information is consistent with the image information generated actually in the process of playing the frame of video data, and if so, then configuring the frame attribute information to the register involved in the process of playing the frame of video data.2. The method according to claim 1 , wherein if the current frame of video data is a first frame of video data in the video stream claim 1 , then acquiring the preset image match information for matching with the image information generated actually in the process of playing the current frame of video data and the frame attribute information of the current frame of ...

NOTIFICATIONS FOR DEVIATIONS IN DEPICTION OF DIFFERENT OBJECTS IN FILMED SHOTS OF VIDEO CONTENT

A video editing device includes a memory that stores first video content and includes circuitry that extracts a first image frame of a first filmed shot of the first video content and a second image frame of a second filmed shot of the first video content. The first image frame is a last frame of the first filmed shot and the second image frame is a first frame of the second filmed shot. The circuitry detects a first set of objects from the extracted first image frame and a second set of objects from the extracted second image frame. The circuitry further generates and outputs notification information associated with a first object based on a deviation of at least a first visual attribute of the first object in the first image frame from at least a second visual attribute of the first object in the second image frame. 1. A video editing device , comprising: each of the set of filmed scenes comprises a plurality of filmed shots, and', 'each of the plurality of filmed shots comprises a sequence of image frames; and, 'a memory configured to store first video content that comprises a set of filmed scenes of a filmed sequence, wherein'} extract a first image frame of a first filmed shot of the plurality of filmed shots and a second image frame of a second filmed shot of the plurality of filmed shots;', 'detect a first set of objects from the extracted first image frame and a second set of objects from the extracted second image frame;', 'identify a first object from each of the first set of objects and the second set of objects based on an object type of the first object, wherein the object type of the first object in the first set of objects and the second set of objects is same;', 'generate notification information associated with the first object based on a deviation of at least a first visual attribute of the first object in the extracted first image frame from at least a second visual attribute of the first object in the extracted second image frame, wherein the ...

SYSTEMS AND METHODS FOR INTERNET VIDEO DELIVERY

Systems and methods are disclosed for delivering video content over a network such as the Internet. Videos are identified and pre-processed by a web service and then separated into a plurality of segments. Based on user interest, video segments may be pre-fetched and stored by a client associated with a user. Upon receiving a selection from a user to play a video, the first video segment may begin playing instantaneously from a local cache. While the first video segment plays, subsequent video segments are transmitted from the web service to the client, so that the subsequent video segments will be ready for viewing at the client when playback of the first video segment has finished. 130-. (canceled)31. A computer-implemented method for transmitting a video over an electronic network , comprising:determining a video to associate with a client device without receiving an explicit request from the client device for the video;receiving a first frame and a second frame of the video;computing a distance measure indicating a degree of change between the first frame and the second frame;determining whether a scene change has occurred in the video based on the distance measure;in response to determining that the scene change has occurred in the video, dividing the video into a plurality of segments at the scene change, each segment comprising a plurality of frames; andtransmitting, over the electronic network, at least one of the segments to a client device.32. The computer-implemented method of claim 31 , wherein the segments are equal in size.33. The computer-implemented method of claim 31 , further comprising:analyzing visual and audio components of the video; anddividing the video into the segments based on the analysis of visual and audio components of the video.34. The computer-implemented method of claim 31 , wherein computing the distance measure comprises computing the distance measure indicating a degree of change between color histograms of the first and second ...

METHOD FOR AND APPARATUS FOR DETECTING EVENTS

A method for detecting events comprises repeatedly registering a value indicating an amount of data generated by an encoder, which is encoding video from a scene by means of temporal compression, determining if a particular event has occurred in the scene represented by the encoded video by comparing characteristics of the registered values with predetermined characteristics, and generating an event signal in response to an event occurrence being determined. 1. Method for detecting events , comprising:repeatedly registering a value indicating an amount of data per unit of time in a data stream generated by an encoder, which is encoding video from a scene by means of temporal compression, thereby a dataset representing a variation in data rate over time is registered;analyzing a representation of the data rate against time of the dataset for finding features of the representation; anddetecting events based on the found features of the representation.2. The method according to claim 1 , wherein the act of analyzing the representation comprises at least one of: analyzing a height of a peak in the representation of the data rate against time of the dataset claim 1 , analyzing a derivative of a portion of the representation of the data rate against time of the dataset claim 1 , and analyzing an area under a portion of a plot of the representation of the data rate against time of the dataset.3. The method according to claim 1 , further comprisinggenerating models representing particular events identifiable in the representation of the data rate against time of the dataset; andidentifying particular events using these models.4. The method according to claim 3 , wherein one or more of the models are formed by identifying and registering a combination of particular features of a portion of the representation of the data rate against time of the dataset representing a particular event.5. The method according to claim 4 , wherein identifying a particular event comprises ...

METHODS AND APPARATUS TO DETECT COMMERCIAL ADVERTISEMENTS ASSOCIATED WITH MEDIA PRESENTATIONS

Methods and apparatus to detect commercial advertisements associated with media presentations are disclosed. An example method includes comparing an amount of audio randomness in an inter-segment audio frame to a random level threshold, the amount of audio randomness being based on a random-factor ratio; and in response to the amount of randomness satisfying the random level threshold, indicating the inter-segment audio frame is associated with the commercial transition. 1. A method to detect a commercial transition associated with a media presentation , the method comprising:comparing, by executing an instruction with a processor, an amount of audio randomness in an inter-segment audio frame to a random level threshold, the amount of audio randomness being based on a random-factor ratio; andin response to the amount of randomness satisfying the random level threshold, indicating, by executing an instruction with the processor, the inter-segment audio frame is associated with the commercial transition.2. The method as defined in claim 1 , further including determining the random-factor ratio by:determining a quantity of unique time-based distances between at least one of a plurality of amplitude peaks or a plurality of amplitude troughs in the inter-segment audio frame; anddetermining the random-factor ratio by dividing the quantity of unique time-based distances by the quantity of total time-based distances between the at least one of the amplitude peaks or the amplitude troughs.3. The method as defined in claim 1 , wherein the commercial transition includes at least one of a transition between two commercial advertisements or a transition between a commercial advertisement and a media program.4. The method as defined in claim 1 , wherein the inter-segment audio frame is reconstructed from at least one of a television transmission claim 1 , an internet-streamed video claim 1 , or a video on demand video.5. The method as defined in claim 1 , wherein the amount of ...

PIXEL-BASED EVENT DETECTION FOR TRACKING, HOSTILE FIRE INDICATION, GLINT SUPPRESSION, AND OTHER APPLICATIONS

A method includes repeatedly charging and discharging a capacitor, where the capacitor is charged based on illumination received at a pixel. The method also includes comparing a voltage stored on the capacitor with a reference voltage using a comparator. The method further includes incrementing or decrementing a first counter value of a first counter each time a comparator output indicates that the capacitor voltage has reached the reference voltage during a first period of time. The method also includes incrementing or decrementing a second counter value of a second counter each time the comparator output indicates that the capacitor voltage has reached the reference voltage during multiple smaller second periods of time within the first period of time. In addition, the method includes resetting the second counter for each second period of time and generating a pixel event indicator in response to the second counter value obtaining a value indicative of a bright intensity event. 1. A method comprising:repeatedly charging and discharging a capacitor, the capacitor charged based on illumination received at a pixel;comparing a voltage stored on the capacitor with a reference voltage using a comparator;incrementing or decrementing a first counter value of a first counter of a detector during a first period of time, the first counter value incremented or decremented each time an output of the comparator indicates that the voltage stored on the capacitor has reached the reference voltage, the first counter value at an end of the first period of time indicative of an intensity of the illumination received by the pixel during the first period of time;incrementing or decrementing a second counter value of a second counter of the detector during multiple smaller second periods of time within the first period of time, the second counter value incremented or decremented each time the output of the comparator indicates that the voltage stored on the capacitor has reached the ...

Video Denoising using Optical Flow

In techniques for video denoising using optical flow, image frames of video content include noise that corrupts the video content. A reference frame is selected, and matching patches to an image patch in the reference frame are determined from within the reference frame. A noise estimate is computed for previous and subsequent image frames relative to the reference frame. The noise estimate for an image frame is computed based on optical flow, and is usable to determine a contribution of similar motion patches to denoise the image patch in the reference frame. The similar motion patches from the previous and subsequent image frames that correspond to the image patch in the reference frame are determined based on the optical flow computations. The image patch is denoised based on an average of the matching patches from reference frame and the similar motion patches determined from the previous and subsequent image frames. 1. A method , comprising:determining matching patches that match an image patch in a reference frame selected from a sequence of image frames;computing a noise estimate based on optical flow for previous image frames and for subsequent image frames relative to the reference frame in the sequence of the image frames;determining, based on the optical flow computations, similar motion patches from the previous and subsequent image frames that correspond to the image patch in the reference frame; anddenoising the image patch in the reference frame based on the matching patches that are determined from within the reference frame and based on the similar motion patches that are determined from the previous and subsequent image frames.2. The method as recited in claim 1 , further comprising:selecting adaptively a number of the image frames in the sequence of the image frames as a temporal window of the previous and subsequent image frames relative to the reference frame for said denoising the image patch in the reference frame, the number of the image ...

DISPLAY APPARATUS AND DISPLAY METHOD FOR DISPLAYING IMAGE

A display apparatus and a display method for displaying an image. The display method includes: receiving image frames; detecting motion values of front and back image ones of the received image frames; analyzing the detected motion values to determine whether a scene change occurs each preset time unit; and adjusting a brightness value of an image frame to be displayed according to whether the scene change occurs. Therefore, the display apparatus improves a loss of a contrast ratio occurring when varying a brightness of an image frame of each fraction in an occurrence of a scene change and improves a viewing visual brightness. 1. A method of displaying an image comprising:receiving a plurality of image frames;detecting motion values of front and back image frames of the received plurality of image frames;determining whether a scene change occurs within a preset time based on the detected motion values; andadjusting a brightness value of an image frame, from among the received plurality of image frames, to be displayed, based on the determining whether the scene change occurs.2. The method of claim 1 , wherein the motion values of the front and back image frames are detected from a sum of brightness differences of pixels constituting the front and back image frames.3. The method of claim 1 , wherein claim 1 , in response to the detected motion values being higher than or equal to a reference value claim 1 , the determining yields that the scene change occurs between the front and back image frames.4. The method of claim 3 , further comprising:calculating a number of scene changes occurring within the preset time; andadjusting the reference value for determining whether the scene change occurs within the preset time based on the calculated number of scene changes.5. The method of claim 4 , wherein the adjusting the reference value comprises:in response to the calculated number of scene changes being higher than or equal to a threshold value, performing one of ...

DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

A data processing device includes: a digital signal processor; at least one processor; and at least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to: output a first determination result relating to a scene of content through use of sound data; select processing for the sound data by a first selection method based on the first determination result; determine an attribute of the content from among a plurality of attribute candidates; and select the processing by a second selection method, which is different from the first selection method, based on a determination result of the attribute, wherein the digital signal processor is configured to execute the processing selected by the at least one processor on the sound data. 1. A data processing device , comprising:a digital signal processor;at least one processor; andat least one memory device configured to store a plurality of instructions, which when executed by the at least one processor, cause the at least one processor to operate to:obtain a first determination result relating to a scene included in a content through use of sound data associated with the scene;determine an attribute of the content, in which the scene is included, from among a plurality of attribute candidates; andselect processing to be applied to the sound data associated with the scene based on a determination result of the attribute such that:(i) in a case where the determined attribute of the content is a first attribute among the plurality of attribute candidates, processing to be applied to the sound data associated with the scene is selected using a first selection method, and(ii) in a case where the determined attribute of the content is a second attribute among the plurality of attribute candidates different from the first attribute, processing to be applied to the sound data associated with the scene is selected using a ...

Automated dynamic video capturing

A video system is disclosed that include a video robot. The video robot includes a video capturing device and a location sensing mechanism for sensing locations of a target within a space. The robot also include a mechanism for automatically selecting a field of view of the video capturing device to correspond to the locations of the subject as the subject moves through the locations in the space. In the method of the invention, locations of the target are monitored with a video capturing unit using location signals transmitted from a sensor on or near the target. Based on the locations of the target, the field of view of the video capturing unit to automatically adjusted to correspond to the locations of the subject as the subject moves through the space while the video unit simultaneously captures video data and displays representations of the video data on a screen. 1. A system comprisinga) a video capturing unit for capturing video data;b) a location sensing mechanism for sensing locations of a target within a space; andc) a mechanism for automatically selecting a field of view of the video capturing unit to correspond to the locations of the target as the subject moves through the locations in the space while the video capturing unit is capturing the video data.2. The system of claim 1 , wherein the location sensing mechanism includes a transmitting location sensor that couples to the target.3. The system of claim 1 , wherein the location sensing mechanism includes a sensor unit with an array of sensors that project claim 1 , generate or sense a two-dimensional or three-dimensional sensing field or sensing grid.4. The system of claim 1 , wherein the location sensing mechanism includes multiple mobile location sensors that are capable of being activate and deactivated to control the field of view of a video capturing unit.5. The system of claim 1 , wherein the video capturing unit includes multiple video cameras that are activated and deactivated to select the ...

DETECTION OF SOLID COLOR FRAMES FOR DETERMINING TRANSITIONS IN VIDEO CONTENT

Particular embodiments detect a solid color frame, such as a black frame, that may include visible content other than the solid color in a portion of the frame. These frames may conventionally not be detected as a solid color frame because of the visible content in the portion of the frame. However, these solid color frames may be “functional” black or white frames, in that the solid color frames are performing the function of the solid color frame even though the frames include the visible content. The visible content may be content that may always be displayed on the screen even if the video content is transitioning to an advertisement. Particular embodiments use techniques to detect the functional solid color frames even when visible content appears in the solid color frames. Particular embodiments use color layout information and edge distribution information to detect solid color frames. 1. A method for determining transitions in video content , the method comprising:determining color layout information for a frame of the video content, the color layout information describing a distribution of color in the frame;determining edge distribution information for the frame, the edge distribution information describing a number of edges found in a plurality of regions of the frame;determining a set of color layout features from the color layout information regarding a color change within the frame;determining a set of edge distribution features from the edge distribution information in a set of regions in the plurality of regions, wherein the set of edge distribution features indicate a number of edges in the set of regions;determining when the frame is classified as a solid color frame based on the set of color layout features and the set of edge distribution features; andwhen the frame is classified as the solid color frame, marking the solid color frame being a transition between a first type of video content and a second type of video content.2. The method of ...

System and Method for Minimizing Motion Artifacts During the Fusion of an Image Bracket Based On Preview Frame Analysis

The present invention relates to system and method for minimizing motion artifacts during the fusion of an image bracket based on preview frame analysis. The system mainly comprises a preview frame capture module to render preview image frames typically invariant in exposure, focus and other related capture parameters at video rate. The system also comprises a scene dynamic range assessment module to assess the extent of dynamism of scene subjects and intensity expanse by sampling the scene at periodic intervals through preview image frames. The system uses the calculated measure of dynamism and intensity distribution to control the parameters used for detecting and preventing motion artifacts during the fusion of subsequently captured bracket of images nuanced in capture parameters such as exposure or focus. 1. A system for minimizing motion artifacts during the fusion of an image bracket based on preview frame analysis , the system comprises of:{'b': '101', 'a) a preview frame capture module configured to capture one or more preview image frames at video rate and render to the user screen, wherein the preview image frames are typically invariant in exposure, focus and other related capture parameters, wherein the preview image frames are rendered to the user screen when the camera application is triggered;'}{'b': '102', 'b) a global motion isolation module processes the blocks of regular or structural dimensions by computing the intensity component of the successive preview image frames and the disparity between the successive preview frames and computes the inter frame misalignment due to unsteady clasp of camera by user;'}{'b': 103', '101, 'c) a scene dynamic range assessment module assesses the extent of dynamism of scene subjects in the successive preview image frames from the preview frame capture module at predetermined intervals, wherein the grabbed successive preview image frames are compared with each other to assess the subject dynamism of scene subjects ...

IMAGE PROCESSING APPARATUS, METHOD OF CONTROLLING IMAGE PROCESSING APPARATUS, AND IMAGING APPARATUS

An image processing apparatus including a recording unit configured to acquire a plurality of image data and record the plurality of image data in a recording medium includes an acquisition unit configured to acquire depth distribution information of an object corresponding to image data, and a control unit configured to perform a process of recording the plurality of image data by performing switching between a first mode in which the recording unit records the image data and the depth distribution information corresponding to the image data in the recording medium and a second mode in which the recording unit records the image data in the recording medium without recording the depth distribution information. 1. An image processing apparatus including a recording unit configured to acquire a plurality of image data and record the plurality of image data in a recording medium , the image processing apparatus comprising:an acquisition unit configured to acquire depth distribution information of an object corresponding to image data; anda control unit configured to perform a process of recording the plurality of image data by performing switching between a first mode in which the recording unit records the image data and the depth distribution information corresponding to the image data in the recording medium and a second mode in which the recording unit records the image data in the recording medium without recording the depth distribution information.2. The image processing apparatus according to claim 1 , wherein the control unit performs a recording process by performing switching between the first mode and the second mode during recording of the plurality of image data and causes the recording unit to record the plurality of image data as a moving image in the recording medium.3. The image processing apparatus according to claim 2 , wherein the recording unit records the plurality of image data and depth distribution information corresponding to image data on ...

Collecting and viewing three-dimensional scanner data in a flexible video format

A method interactively displays panoramic images of a scene. The method includes measuring 3D coordinates of the scene with a 3D measuring instrument at a first position and a second position. The 3D coordinates are registering into a common frame of reference. Within the scene, a trajectory includes a plurality of trajectory points. Along the trajectory, 2D images are generated from the commonly registered 3D coordinates. A trajectory display mode sequentially displays a collection of 2D images at the trajectory points. A rotational display mode allows a user to select a desired view direction at a given trajectory point. The user selects the trajectory display mode or the rotational display mode and sees the result shown on the display device.

NOISE REDUCTION APPARATUS, DISPLAY APPARATUS, NOISE REDUCTION METHOD, AND NOISE REDUCTION PROGRAM

A noise reduction apparatus includes a scene change frame detection unit that detects at least one of frames immediately before and immediately after a scene change among frames included in a video signal and a time-difference signal having a time difference from the video signal based on the video signal and the time-difference signal and a noise reduction processing unit that weakens noise reduction of inter-frame noise superimposed between frames for at least one image signal of the at least one frame detected by the scene change frame detection unit. 113-. (canceled)14. A noise reduction apparatus comprising:a scene change frame detection unit that references a video signal and a time-difference signal having a time difference from the video signal and detects one of frames immediately before and immediately after a scene change among frames included in the video signal or the time-difference signal; anda noise reduction processing unit that weakens noise reduction of inter-frame noise superimposed between frames for an image signal the frame detected by the scene change frame detection unit.15. The noise reduction apparatus according to claim 14 , whereinthe time-difference signal is a first delay signal obtained by delaying the video signal,the scene change frame detection unit detects a post-scene-change frame, which is a frame immediately after a scene change, among frames included in the video signal based on the video signal and the first delay signal, andthe noise reduction processing unit weakens noise reduction of inter-frame noise for an image signal of the post-scene-change frame detected by the scene change frame detection unit.16. The noise reduction apparatus according to claim 15 , whereinthe scene change frame detection unit includesa delay unit that generates the first delay signal by delaying a video signal by a predetermined first number of frames anda detection unit that detects the post-scene-change frame among the frames included in the ...

System and method for video summarization and navigation based on statistical models

The disclosed method calculates video time density functions based on inter-frame mutual information or other similarity measures. The method includes acquiring a video sequence from memory, computing mutual information or other similarity measures between two consecutive frames of the video sequence, and constructing a video temporal density function based on the mutual information or similarity measures. The method enables fast navigation of the video sequence by performing a temporal quantization of the video time density function to determine a set of quanta. The video sequence can be navigated using the nearest neighbor video frames to the set of quanta. The method enables thumbnail extraction of a video sequence using statistical modeling by performing a temporal quantization of the video time density function to segment video sequence in time domain and using mixture (such as Gaussian mixture and ICA mixture) vector quantization to find the sample frames for each temporal segment.

DETECTING ERRORS IN THE TIMING BETWEEN SUBTITLES AND SHOT CHANGES

In various embodiments, a subtitle timing application detects timing errors between subtitles and shot changes. In operation, the subtitle timing application determines that a temporal edge associated with a subtitle does not satisfy a timing guideline based on a shot change. The shot change occurs within a sequence of frames of an audiovisual program. The subtitle timing application then determines a new temporal edge that satisfies the timing guideline relative to the shot change. Subsequently, the subtitle timing application causes a modification to a temporal location of the subtitle within the sequence of frames based on the new temporal edge. Advantageously, the modification to the subtitle improves a quality of a viewing experience for a viewer. Notably, by automatically detecting timing errors, the subtitle timing application facilitates proper and efficient re-scheduling of subtitles that are not optimally timed with shot changes. 1. A computer-implemented method , comprising:performing one or more operations, via a processor, to determine that a first temporal edge associated with a first subtitle does not satisfy a timing guideline relative to a first shot change that occurs within a sequence of frames of an audiovisual program;performing one or more additional operations, via the processor, to select a second temporal edge that satisfies the timing guideline relative to the first shot change; andcausing a temporal location of the first subtitle within the sequence of frames to be modified based on the second temporal edge.2. The computer-implemented method of claim 1 , wherein the first temporal edge associated with the first subtitle comprises either the start of the first subtitle or the end of the first subtitle.3. The computer-implemented method of claim 1 , wherein performing the one or more operations to determine that the first temporal edge associated with the first subtitle does not satisfy the timing guideline comprises:generating a first zone ...

METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR SEGMENTATION OF OBJECTS IN MEDIA CONTENT

In an example embodiment a method, apparatus and computer program product are provided. The method includes extracting a first set of target-object regions and at least one set of non-target object regions from a plurality of regions of a video content based at least on likelihood information. A plurality of unlabeled regions of the video content are classified based on the first set of target-object regions and the at least one set of non-target object regions to generate a second set of target object regions that is denser than the first set of target object regions. A model is learned for modelling at least one of the target object and non-target objects of the video content based at least on the second set of target object regions. The target object in the video content is segmented based on the model and the second set of target object regions. 1. A method comprising:extracting a first set of target object regions and at least one set of non-target object regions from a plurality of regions of a video content based at least on a likelihood information, the likelihood information being indicative of a likelihood of the plurality of regions to be associated with a target object of the video content;classifying a plurality of unlabeled regions of the video content based on the first set of target object regions and the at least one set of non-target object regions to generate a second set of target object regions, the second set of target object regions being denser than the first set of target object regions;learning a model for modelling at least one of the target object and non-target objects of the video content based at least on the second set of target object regions; andsegmenting the target object in the video content based on the model and the second set of target object regions.2. The method as claimed in claim 1 , wherein extracting the first set of target object regions and the at least one set of non-target object regions further comprises:determining ...

SYSTEM AND METHOD FOR PROCESSING VISUAL INFORMATION FOR EVENT DETECTION

A system and method processes visual information including at least one object in motion. The visual information is processed by locating at least one spatial edge of the object, generating a plurality of spatio-temporal gradients for the at least one spatial edge over N frames, and then generating motion blur images from the spatio-temporal gradients. A regression analysis is performed on the motion blur images to determine direction of motion information of the object, and scene activity vectors are then generated for the N frames based on the direction of motion information. An event is detected in the visual information based on the scene activity vectors. 1. A method for processing information , comprising:receiving visual information including at least one object in motion;locating at least one spatial edge of the object in the visual information;generating a plurality of spatio-temporal gradients for the at least one spatial edge over N frames, where N≧3;generating motion blur images from the spatio-temporal gradients;performing a regression analysis on the motion blur images to determine direction of motion information of the object throughout the N frames;generating scene activity vectors for the N frames based on the direction of motion information; anddetecting an event in the visual information based on the scene activity vectors generated for the N frames.2. The method of claim 1 , wherein the generating the spatio-temporal gradients includes:obtaining a spatial edge image for each of the N frames, anddetermining the spatio-temporal gradients based on a corresponding one of the spatial edge images and a moving average.3. The method of claim 2 , wherein the moving average is based on a background edge image.4. The method of claim 2 , wherein a region including the at least one spatial edge is smaller than a size of the N frames.5. The method of claim 1 , wherein a location of the object changes in one or more of the N frames.6. The method of claim 1 , ...

ENDOSCOPE APPARATUS, METHOD FOR CONTROLLING ENDOSCOPE APPARATUS, AND INFORMATION STORAGE DEVICE

An endoscope apparatus includes a processor comprising hardware, a processor performs a focus control that controls a position of a focus lens to an in-focus position based on an in-focus evaluation value, the focus lens being included in an optical system that forms an image of a captured image that is acquired by an imaging section, and the in-focus evaluation value being calculated from a first area within the captured image, and a change-in-scene detection process that detects whether or not a change in scene has occurred from a second area that includes an area that differs from the first area, wherein the processor is set to a standby state when the position of the focus lens has been controlled to the in-focus position, and resumes the focus control process when a change in scene has been detected when the focus control section is set to the standby state. 1. An endoscope apparatus comprising:a processor comprising hardware, the processor being configured to implement:a focus control process that controls a position of a focus lens to an in-focus position based on an in-focus evaluation value, the focus lens being included in an optical system that forms an image included in a captured image that is acquired by an imaging section, and the in-focus evaluation value being calculated from a first area within the captured image; anda change-in-scene detection process that detects whether or not a change in scene has occurred from a second area within the captured image that includes an area that differs from at least the first area,wherein the processor is set to a standby state in which the processor stops the focus control process when the focus control process has controlled the position of the focus lens to the in-focus position, and resumes the focus control process when the change in scene has been detected by the change-in-scene detection process when the processor is set to the standby state.2. The endoscope apparatus as defined in claim 1 ,wherein the ...

Pixel-based event detection for tracking, hostile fire indication, glint suppression, and other applications

A method includes generating an intensity value based on illumination received at a pixel of an imaging system. The intensity value is generated by integrating values using a first counter of a detector during a first period of time. The method also includes integrating the values repeatedly during smaller second periods of time within the first period of time using a second counter of the detector. The second counter has a lower bit resolution than the first counter. The method further includes resetting the second counter for each of the second periods of time. In addition, the method includes generating a pixel event indicator in response to the second counter outputting a specified value. The method may also include determining whether one or more neighboring detectors also generated one or more pixel event indicators and generating an event indicator when the one or more neighboring detectors also generated the one or more pixel event indicators.

THUMBNAIL MANAGEMENT

In one example embodiment, thumbnail management for video content includes detecting a plurality of scene change points from the video content, determining a number of analysis windows based on the plurality of detected scene change points, selecting a frame in each of the analysis windows, and storing the selected frame as the thumbnail for the respective analysis window. 1. A method of selecting thumbnails corresponding to video content , comprising:detecting a plurality of scene change points from the video content;determining a number of analysis windows based on the plurality of detected scene change points;selecting a frame in each of the analysis windows; andstoring the selected frame as the thumbnail for the respective analysis window.2. A method of selecting thumbnails corresponding to video content , comprising:determining at least one of analysis windows for the video content based on a required number of thumbnails;selecting a frame in each of the analysis windows; andstoring the selected frame as the thumbnail for the respective analysis window.3. A method of selecting thumbnails corresponding to video content , comprising:detecting a plurality of scene change points from the video content;dividing the video content into at least one of portions based on the plurality of detected scene change points; andselecting a frame in each of the portions as the thumbnail based on the plurality of detected scene change points. This is a continuation application of U.S. patent application Ser. No. 14/884,923, filed on Oct. 16, 2015 which claims the benefit of Korean Patent Application No. 10-2014-0140887 filed on Oct. 17, 2014, in the Korean Intellectual Property Office, the entire disclosures of which are incorporated herein by reference.The embodiments described herein pertain generally to thumbnail management.A thumbnail refers to reduced-sized versions of an image or representation of a video that has been extracted to represent at least portions of a video. As ...

MOTION PICTURE CAMERA ARRANGEMENT AND METHOD OF OPERATING A MOTION PICTURE CAMERA ARRANGEMENT

A motion picture camera arrangement comprises a motion picture camera and a display device, wherein the motion picture camera has an image sensor for taking images at a variable frame rate and wherein the display device displays the taken images at a settable display rate. A method of operating the motion picture camera arrangement comprises the steps of: selecting a frame rate; determining a setting value for the display rate of the display device, wherein the setting value corresponds, in dependence on the selected frame rate, either to the selected frame rate or to a product or quotient of the selected frame rate and a whole-number multiplier or divisor; operating the image sensor at the selected frame rate; and operating the display device using the determined setting value for the display rate. 1. A method of operating a motion picture camera arrangement which comprises a motion picture camera and a display device , wherein the motion picture camera has an image sensor for taking images at a selectable , continuously or quasi-continuously variable frame rate; and wherein the display device displays the taken images at a display rate settable at least within a permitted range , comprising the steps of:selecting a frame rate of the image sensor;determining a setting value for the display rate of the display device, wherein the setting value corresponds, in dependence on the selected frame rate, either to the selected frame rate or to a product or quotient of the selected frame rate and a whole-number multiplier or divisor;operating the image sensor at the selected frame rate; andoperating the display device using the determined setting value for the display rate.2. The method in accordance with claim 1 ,wherein the multiplier or divisor is fixed such that the setting value for the display rate lies within the permitted range of the display rate.3. The method in accordance with claim 1 ,wherein, if a plurality of possible setting values for the selected frame rate ...

System and Methods for Generating Scene Stabilized Metadata

Methods and systems for generating and applying scene-stable metadata for a video data stream are disclosed herein. A video data stream is divided or partitioned into scenes and a first set of metadata may be generated for a given scene of video data. The first set of metadata may be any known metadata as a desired function of video content (e.g., luminance). The first set of metadata may be generated on a frame-by-frame basis. In one example, scene-stable metadata may be generated that may be different from the first set of metadata for the scene. The scene-stable metadata may be generated by monitoring a desired feature with the scene and may be used to keep the desired feature within an acceptable range of values. This may help to avoid noticeable and possibly objectionably visual artifacts upon rendering the video data. 124-. (canceled)25. A method for using scene-stable metadata in a video data stream , the method comprising:dividing the video data stream into a set of scenes; computing a min, mid and max luminance for each frame in a scene; and', 'computing a min, mid and max luminance for the scene;, 'generating a first metadata associated with a first scene within the set of scenes, wherein generating the first metadata associated with the first scene within the set of scenes comprisesgenerating scene stable metadata; and 'repeating the scene stable metadata for every frame within said first scene.', 'associating the scene stable metadata with said first scene, wherein associating the scene stable metadata with said first scene further comprises26. The method of wherein dividing a video data stream into a set of scenes further comprises:deriving the location of scene cuts from an edit decision list.27. The method of wherein deriving the location of scene cuts from the edit decision list further comprises:deriving the location of scene cuts manually or automatically by a processor.28. The method of wherein generating the scene stable metadata further ...

DETERMINATION OF AN ORDERED SET OF SEPARATE VIDEOS

A method comprising determining an ordered set of separate videos that comprises a first video and a second video, identifying a first video segment comprised by the first video, determining an ordered set representation that indicates the ordered set of separate videos, the ordered set representation comprising a first representative image that represents the first video and a second representative image that represents the second video, causing display of the ordered set representation, receiving information indicative a scrub input, causing movement between the ordered set representation and an index point based on the scrub input, determining that the index point is aligned with the first representative image determining a rendering position based the first representative image, identifying a frame of the first video segment, and causing display of a frame image in a video rendering region is disclosed. 1. An apparatus , comprising:at least one processor; determination of an ordered set of separate videos that comprises a first video and a second video such that the first video is adjacent to the second video in the ordered set of separate videos;', 'identification of a first video segment comprised by the first video that is less than an entirety of the first video;', 'determination of an ordered set representation that indicates the ordered set of separate videos, the ordered set representation comprising a first representative image that represents, at least a portion of, the first video and a second representative image that represents, at least part of, the second video, such that the first representative image and the second representative image are arranged along an axis in accordance with an ordering of the ordered set of separate videos;', 'causation of display of at least part of the ordered set representation proximate to a video rendering region of a display;', 'receipt of information indicative a scrub input associated with the ordered set ...

VIDEO SIGNAL PROCESSING DEVICE, VIDEO FREEZE DETECTING CIRCUIT AND METHOD OF DETETING VIDEO FREEZE

A video signal processing device which comprises: a video signal dividing unit configured to divide a video signal into first to k-th division video signals (k is an integer of 2 or more) for each frame; a video change detecting unit configured to detect, for each of the first to k-th division video signals, whether or not there has occurred a change in the video signal between the frames, and to generate first to k-th video change detection signals representing the detection results; and a video no-change determining unit configured to generate a video no-change signal indicating that there is no change in the video signal when the number of video change detection signals indicating that there is no change among the first to k-th video change detection signals is greater than a predetermined number. 1. A video signal processing device comprising:a video signal dividing unit configured to receive a video signal including a series of frames, and to divide said video signal into first to k-th division video signals (k is an integer of 2 or more) for each frame;a video change detecting unit configured to detect, for each of said first to k-th division video signals, whether or not there has occurred a change in said video signal between the respective frames based on said division video signals, and to generate first to k-th video change detection signals representing respective results of the detection; anda video no-change determining unit configured to generate a video no-change signal indicating that there is no change in said video signal when a number of video change detection signals indicating that there is no change in the video based on said division video signals, among said first to k-th video change detection signals, is greater than a predetermined number.2. The video signal processing device according to claim 1 , further comprising:a repetition determining unit configured to output a freeze detection signal indicating that said video signal is frozen ...

Methods and apparatus to detect commercial advertisements associated with media presentations

Methods and apparatus to detect commercial advertisements associated with media presentations are disclosed. An example method involves receiving a video frame and detecting a change in box-formatting between the video frame and a subsequent video frame. A transition between the video frame and the subsequent video frame is indicated as a commercial advertisement transition based on the detected change in box-formatting.

Monitoring method and monitoring device

The present invention provides a monitoring method and a monitoring device, belongs to the field of electronic monitoring technology, and can solve the problem that useless video data occupies storage space and key video cannot be extracted quickly when an event occurs in the existing monitoring device. The monitoring method of the present invention comprises: determining whether or not a first image is changed; generating a storage instruction if it is determined that the first image is changed; collecting and storing images of external environment according to the storage instruction; obtaining a second image according to the collected images of external environment; determining whether or not the second image is changed; and stopping storing images of external environment if it is determined that the second image is not changed.

LOCAL CHANGE DETECTION IN VIDEO

Techniques related to detecting local change in video are discussed. Such techniques may include determining inlier and outlier keypoints for a current frame of a video sequence based on inlier keypoints from previous frames, detecting a region of local change based on outlier keypoints of the current and previous frames, and providing an indicator of local change based on the detected region of local change. 1. A method for providing local change detection in video comprising:determining one or more inlier keypoints and one or more outlier keypoints in a current frame of a video sequence based on one or more second inlier keypoints in one or more previous frames of the video sequence;detecting a region of local change in the video sequence based on the outlier keypoints in the current frame and one or more second outlier keypoints in the one or more previous frames of the video sequence; andproviding an indicator of local change based on the detected region of local change in the video sequence.2. The method of claim 1 , wherein determining the one or more inlier keypoints and the one or more outlier keypoints comprises claim 1 , for keypoints of the current frame claim 1 , comparing matching scores for the keypoints to a matching threshold.3. The method of claim 1 , wherein determining the one or more inlier keypoints comprises claim 1 , for a first inlier keypoint of the one or more inlier keypoints claim 1 , detecting a matching keypoint from the one or more second inlier keypoints.4. The method of claim 3 , wherein the matching keypoint is within a spatial neighborhood of the first inlier keypoint and has a smallest descriptor distance with respect to the first inlier keypoint of any of the one or more second inlier keypoints within the spatial neighborhood.5. The method of claim 1 , wherein detecting the region of local change comprises warping the one or more second outlier keypoints to a coordinate system of the current frame and applying a clustering ...

TECHNOLOGY TO ACCELERATE SCENE CHANGE DETECTION AND ACHIEVE ADAPTIVE CONTENT DISPLAY

Systems, apparatuses and methods may include a source device that generates a scene change notification in response to a movement of a camera, modifies an encoding scheme associated with the video content captured by the camera in response to the scene change notification, identifies a full-frame difference threshold, wherein scene analysis information includes frame difference data, and compares the frame difference data to an intermediate threshold that is less than the full-frame difference threshold, wherein the scene change notification is generated when the frame difference data exceeds the intermediate threshold. A sink device may obtain transport quality data associated with video content, modify an output parameter of a display based on the transport quality data, determine a view perspective of a still image containing a plurality of image slices, retrieve only a subset of the plurality of image slices based on the view perspective and decode the retrieved subset. 1. A source device comprising:a camera to capture video content;a substrate; andlogic coupled to the substrate, wherein the logic is implemented in one or more of configurable logic or fixed-functionality hardware logic, the logic to:generate a scene change notification in response to a movement of the camera, andmodify an encoding scheme associated with the video content in response to the scene change notification.2. The source device of claim 1 , wherein the modified encoding scheme is to include one or more of a modified quality level or a modified frame stitching pattern.3. The source device of claim 1 , further including a motion sensor claim 1 , wherein the logic is to detect the movement based on one or more of a signal from the motion sensor or scene analysis information.4. The source device of claim 3 , wherein the logic is to:identify a full-frame difference threshold, wherein the scene analysis information is to include frame difference data, andcompare the frame difference data to an ...