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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 10738. Отображено 100.
19-01-2012 дата публикации

Image processing apparatus, image processing method, and computer-readable medium

Номер: US20120013764A1
Автор: Hiroyuki Sakai, Junichi Nakagawa, Kiyoshi Umeda
Принадлежит: Canon Inc

An image processing apparatus for applying a color balance correction to input image data, comprises a holding unit which holds information indicating a locus of a change in highlight color when a color temperature for image data is changed on a color space; a highlight color calculation unit which calculates a highlight color from the image data; a distance calculation unit which calculates a distance between the highlight color and the highlight color locus held in the holding unit on the color space; a reliability calculation unit which calculates a reliability for a value of the highlight color calculated by the highlight color calculation unit in accordance with the distance calculated by the distance calculation unit; and a color balance correction unit which applies the color balance correction to the image data using the highlight color and the reliability.

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Номер записи: 1
08-03-2012 дата публикации

Calibration of display for color response shifts at different luminance settings and for cross-talk between channels

Номер: US20120056910A1
Автор: Milivoje Aleksic, Reza Safaee-Rad
Принадлежит: Qualcomm Inc

The techniques of this disclosure are applicable to backlight display devices. For such devices, the backlight may have different backlight intensity settings in order to promote power conservation. The techniques of this disclosure may apply different adjustments to the display, depending on the backlight intensity setting. In one example, different color correction matrices may be applied for different backlight settings in order to achieve desirable adjustments in the device at the different backlight settings. The adjustments described herein may address chrominance shifts due to different backlight settings as well as cross-talk between color channels. The techniques may also be applicable to organic light emitting diode (OLED) displays that have different luminance settings, and some described techniques may be applicable to displays that have static or fixed luminance output.

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Номер записи: 2
08-03-2012 дата публикации

Adaptive color correction for display with backlight modulation

Номер: US20120056911A1
Автор: Milivoje Aleksic, Min Dai, Reza Safaee-Rad
Принадлежит: Qualcomm Inc

The techniques of this disclosure are applicable to backlight display devices. For such devices, the backlight may have different backlight intensity settings in order to promote power conservation. The techniques of this disclosure may apply different adjustments to the display, depending on the backlight intensity setting. In one example, different color correction matrices may be applied for different backlight settings in order to achieve desirable adjustments in the device at the different backlight settings. The adjustments described herein may address chrominance shifts due to different backlight settings as well as cross-talk between color channels. The techniques may also be applicable to organic light emitting diode (OLED) displays that have different luminance settings, and some described techniques may be applicable to displays that have static or fixed luminance output.

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Номер записи: 3
17-05-2012 дата публикации

Target display for gamma calibration

Номер: US20120120093A1
Автор: Michael Bourgoin
Принадлежит: Microsoft Corp

User interfaces are provided that allow for the display of a target element that may be used to adjust a gamma value of a display device. The target element includes three layers. These layers include a bottom static layer, a gray static layer, and a progressive layer that gradually changes from a fully transparent are to an opaque area. Additionally, a manipulation area is provided, which may be a sliding mechanism. The user may adjust the gamma to a higher value when the fully transparent area appears lighter than the opaque area, and may adjust the gamma to a lower value when the fully transparent area appears darker than the opaque area.

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Номер записи: 4
31-05-2012 дата публикации

Image processing apparatus having luminance-type gamma correction circuit capable of changing nonlinear characteristic, and image processing method therefor

Номер: US20120133806A1
Автор: Kenzo Hisa
Принадлежит: Canon Inc

An image processing apparatus is provided in which, even if a nonlinear characteristic of a luminance-type gamma correction circuit for converting a luminance signal is changed, saturation with respect to a luminance output can be nearly constant. A signal amount of the luminance signal generated from image data that exceeds a previously defined threshold is calculated. A first nonlinear characteristic is selected from a plurality of nonlinear characteristics previously set depending on the calculated signal amount. Nonlinear conversation is performed on a signal generated from the image data to determine luminance with the selected first nonlinear characteristic. An output ratio of the first nonlinear characteristic to a second nonlinear characteristic is prepared and the second nonlinear characteristic is defined so that the output ratio is satisfied. Nonlinear conversion is performed on a signal that has been generated from the image data to determine saturation with the selected second nonlinear characteristic.

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Номер записи: 5
21-06-2012 дата публикации

Spatio-temporal color luminance dithering techniques

Номер: US20120154428A1
Автор: Ulrich T. Barnhoefer
Принадлежит: Apple Inc

Systems and methods are disclosed to enable the creation and the display of spatio-temporal dithered images. Embodiments include techniques that use color-shifting and luminance. In one embodiment, adjacent pixels are color-shifted with respect to each other and the color values of the adjacent pixels are temporally alternated with color values of pixels in the group. In another embodiment, the luminance of group of adjacent pixels is determined and the luminance of the group is made more homogenous spatially and temporally by distributing color variations over a larger number of pixels so as to reduce the luminance difference between the pixel with the least luminance and the pixel with the greatest luminance. Individual color components (e.g., red, green, blue) may also be separated and used so that the color-shifts associated with each color component may be simultaneously present in different pixels.

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Номер записи: 6
09-08-2012 дата публикации

Color restoration apparatus and method

Номер: US20120200731A1
Автор: Byung-Kwan Park, Joo-Young Kang, Seong-deok Lee, Won-Hee Choe
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A color restoration apparatus is provided. The color restoration apparatus including a color correction gain generator configured to compensate for a first broad-band pixel value of a first image, which is acquired from a single-exposure environment, based on a saturation gain for compensating for a difference between a time of the saturation of a broad-band pixel value and a time of the saturation of a narrow-band pixel value, and to calculate a color correction gain based on a first narrow-band pixel value of the first image and the compensated first broad-band pixel value, and a color corrector configured to compensate for a second broad-band pixel value of a second image, which is acquired from a dual-exposure environment, based on a color gain difference compensation value for compensating for a difference between color gains applied to the second image, and to calculate a restored narrow-band pixel value based on the second narrow-band pixel value, the compensated second broad-band pixel value, and the color correction gain.

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Номер записи: 7
20-09-2012 дата публикации

Color space determination devices and display devices and systems including the same

Номер: US20120236205A1
Автор: Hong-Mi Choi, Sang-Hyun Lee, Taek-kyun Shin
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A color space determination device may include a sampling configuration unit and determination unit. The sampling configuration unit may be configured to determine a sampling ratio and a sampling number based on a resolution of input video data, the sampling ratio being a ratio of a number of the input video data to be sampled to a total number of the input video data included in a frame, the sampling number being a number of frames to be sampled. The determination unit may be configured to receive the input video data in units of frames, to sample the input video data with the sampling ratio for each of the sampling number of frames, and to generate a color space signal representing a color space of the input video data based on the sampled input video data that are sampled from the sampling number of frames of the input video data.

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Номер записи: 8
08-11-2012 дата публикации

Method and apparatus for canceling chromatic aberration

Номер: US20120281122A1
Автор: Hee Kang, Jong-hyun Park, Joon-young Chang, Moon-Gi Kang
Принадлежит: Industry Academic Cooperation Foundation of Yonsei University, SAMSUNG ELECTRONICS CO LTD

Provided are a method and apparatus for canceling chromatic aberration. In the method, only chrominance signals are filtered using an asymmetrical mask according to the characteristics of chromatic aberration occurring from among a luminance/chrominance coordinates system. Accordingly, it is possible to cancel chromatic aberration regardless of the characteristics of a lens and prevent the resolution of the original image from degrading.

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Номер записи: 9
21-03-2013 дата публикации

IMAGE SENSOR OPTIMIZATION

Номер: US20130070130A1
Автор: Alakarhu Juha, Salmelin Eero
Принадлежит: Nokia Corporation

An apparatus including: a plurality of photodetectors for converting the light to which they are exposed to into signals for image generation, wherein the photodetectors use locally optimized saturation signal. The apparatus is, for example, an image sensor or an electronic communication device. 1. An apparatus comprising:a plurality of photodetectors configured to convert the light to which they are exposed to into signals for image generation, whereinthe photodetectors are configured to use locally optimized saturation signal.2. The apparatus of claim 1 , wherein the photodetectors form an image plane divided into two or more areas claim 1 , and wherein the locally optimized saturation signal is such that saturation signal of photodetectors in different areas is independent from saturation signal in other areas.3. The apparatus of claim 2 , wherein the two or more areas each comprise one pixel.4. The apparatus of claim 1 , wherein the photodetectors form an image plane having a center part and corner areas claim 1 , and wherein the locally optimized saturation signal is such that photodetectors in the center part use higher saturation signal than photodetectors in the corners areas.5. The apparatus of claim 1 , wherein the photodetectors are configured to use locally optimized saturation signal in bright light conditions and globally optimized saturation signal in low light conditions.6. The apparatus of claim 1 , further comprising:a processing unit configured to control the photodetectors to use locally optimized saturation signal.7. The apparatus of claim 6 , wherein the processing unit is configuredto determine current image capturing condition, andto control the photodetectors to change between locally optimized saturation signal and globally optimized saturation signal based on determined image capturing condition.8. The apparatus of claim 7 , wherein the image capturing condition is illumination condition or exposure condition.9. The apparatus of claim 7 , ...

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Номер записи: 10
28-03-2013 дата публикации

Tone and Gamut Mapping Methods and Apparatus

Номер: US20130076763A1
Автор: Neil W. Messmer
Принадлежит: Dolby Laboratories Licensing Corp

Tone and/or gamut mapping apparatus and methods may be applied to map color values in image data for display on a particular display or other downstream device. A mapping algorithm may be selected based on location and/or color coordinates for pixel data being mapped. The apparatus and methods may be configured to map color coordinates differently depending on whether or not a pixel corresponds to a light source in an image and/or has special or reserved color values

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Номер записи: 11
11-04-2013 дата публикации

Method of Processing Moving Picture and Apparatus Thereof

Номер: US20130088645A1
Автор: Cho Sun-Ok, Kim Kil-youn, LEE Jae-Hyung, Park Dae-Bong
Принадлежит: ENSWERS CO., LTD.

A method of processing moving picture and an apparatus thereof are disclosed. A method of processing a moving picture comprising: calculating a color distribution vector for each of plural sub-frames which are generated by dividing a frame of the moving picture; generating a first order differential of the color distribution vector based on the color distribution vector; generating a second order differential of the color distribution vector based on the first order differential of the color distribution vector; and generating a feature vector of the frame based on the color distribution vector, the first order differential of the color distribution vector and the second order differential of the color distribution vector, is provided. The moving picture processing method can provide an efficient mean to determine commonality between moving pictures by extracting a feature from a frame of the moving pictures. 1. A method of processing a moving picture on an apparatus including at least one computer processor for executing commands that direct operations of the apparatus and a memory operatively coupled to the at least one processor , the memory storing code operable when executed with the at least one processor , the method comprising:calculating a color distribution vector for each of a plurality of sub-frames generated by dividing a frame of the moving picture;generating a first order differential of the color distribution vector based on the color distribution vector;generating a second order differential of the color distribution vector based on the first order differential of the color distribution vector; and generating a feature vector of the frame based on the color distribution vector, the first order differential of the color distribution vector and the second order differential of the color distribution vector.2. The method of claim 1 , wherein the generating of a frame feature vector comprises selecting a plurality of components claim 1 , as components ...

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Номер записи: 12
18-04-2013 дата публикации

IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM

Номер: US20130093925A1
Автор: Nashizawa Hiroaki
Принадлежит: CANON KABUSHIKI KAISHA

An image processing apparatus that enables a demosaicing process to be accurately carried out on a color image signal. With respect to a color mosaic image signal related to each pixel generated by photoelectrical conversion of an optical image reflecting a subject image, an interpolation process is carried out in which signals of missing colors in the each pixel are interpolated using image signals related to pixels in predetermined directions around the each pixel. The interpolation process is carried out in each of a plurality of predetermined directions. Color image signals in the predetermined directions subjected to the interpolation process are evaluated, and based on an evaluation result, a color image signal to be outputted as an interpolation process result is generated. The color image signals in the respective predetermined directions subjected to the interpolation process are evaluated with respect to homogeneity and signal intensity. 1. An image processing apparatus comprising:an interpolation unit adapted to carry out an interpolation process in which, with respect to a color mosaic image signal related to each pixel generated by photoelectrical conversion of an optical image reflecting a subject image, signals of missing colors in the each pixel are interpolated using image signals related to pixels in predetermined directions around the each pixel,wherein said interpolation unit comprises:a direction-by-direction interpolation unit that carries out the interpolation process in each of a plurality of predetermined directions;an evaluation unit that evaluates color image signals in the predetermined directions subjected to the interpolation process by the direction-by-direction interpolation unit; anda generation unit that generates a color image signal to be outputted as an interpolation process result based on a result of the evaluation by the evaluation unit,wherein the evaluation unit evaluates the color image signals in the predetermined ...

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Номер записи: 13
18-04-2013 дата публикации

METHOD AND APPARATUS FOR COMPRESSIVE ACQUISITION AND RECOVERY OF DYNAMIC IMAGERY

Номер: US20130093957A1
Автор: Baraniuk Richard G., Sankaranarayanan Aswin C.
Принадлежит:

A new framework for video compressed sensing models the evolution of the image frames of a video sequence as a linear dynamical system (LDS). This reduces the video recovery problem to first estimating the model parameters of the LDS from compressive measurements, from which the image frames are then reconstructed. We exploit the low-dimensional dynamic parameters (state sequence) and high-dimensional static parameters (observation matrix) of the LDS to devise a novel compressive measurement strategy that measures only the dynamic part of the scene at each instant and accumulates measurements over time to estimate the static parameters. This enables us to lower the compressive measurement rate considerably yet obtain video recovery at a high frame rate that is in fact inversely proportional to the length of the video sequence. This property makes our framework well-suited for high-speed video capture and other applications. We validate our approach with a range of experiments including classification experiments that highlight the purposive nature of our framework. 1. A method for capturing a video sequence comprising the steps of:obtaining common measurements of said video sequence, wherein for said common measurements a corresponding measurement matrix is the same at each time instant;obtaining innovations measurements of said video sequence, wherein for said innovation measurements a corresponding measurement matrix is different at each time instant; andestimating a state sequence up to a linear transformation using an SVD of said common measurements.2. A method for capturing a video sequence according to claim 1 , further comprising the step of estimating an observation matrix using said innovation measurements.3. A method for capturing a video sequence according to claim 2 , further comprising the step of recovering an estimate of said video sequence from a product of said observation matrix and said state sequence.4. A method for capturing a video sequence ...

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Номер записи: 14
18-04-2013 дата публикации

Image output apparatus and method for outputting image thereof

Номер: US20130094754A1
Автор: Hwa-seok Seong, Kyu-Chan Lee, Sung-Soo Kim, Young-hun JO
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An image output apparatus and a method for outputting an image thereof are provided. The method of the image output apparatus determines whether a difference in grayscale values between a current image frame and a previous image frame is greater than or equal to a pre-set value, if the difference in the grayscale values is greater than or equal to the pre-set value, at least one of a maximum grayscale value and a minimum grayscale value of the current image frame is adjusted, a grayscale of the current image frame according to an input and output grayscale function having the adjusted maximum grayscale value and minimum grayscale value is adjusted and an image is output. Accordingly, a crosstalk phenomenon of a 3 D stereoscopic image is removed.

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Номер записи: 15
25-04-2013 дата публикации

METHOD AND APPARATUS FOR REDUCED COMPLEXITY VIDEO PROCESSING VIA SPECIAL CHROMA HANDLING

Номер: US20130100351A1
Автор: Burns Kathleen, Pearlstein Larry
Принадлежит: BROADCOM CORPORATION

A method and apparatus for reduced complexity video and image processing with special chroma handling are disclosed. Frame-type decisions are made on a video stream made up of a sequence of frames. A first subset of the frames are selected to be monochrome and generated without chroma data. A second subset of the frames are selected to be in color and generated with chroma components. In one embodiment, the first subset of frames includes odd frames and the second subset of frames includes even frames in the video stream. Under higher video frame rates, the lack of color in every other frame is not visible to the end viewer. Accordingly, subsequent processing of the output video stream permits luma-only processing of many frames in the video stream, extensively reducing the amount of computation. 1. A method for reduced-complexity video processing comprising:receiving information for a first image and a second image; anddesignating the first image to be processed with corresponding chroma components and designating the second image to be processed without corresponding chroma components.2. The method of wherein the designation of the first image further comprises processing the first image with corresponding chroma components.3. The method of wherein the designation of the first image further comprises processing the first image with enhanced corresponding chroma components.4. The method of wherein the designation of the second image further comprises processing the second image without corresponding chroma components.5. The method of wherein the designation of the second image further comprises processing the second image by treating the corresponding chroma components as having zero value.6. The method of further comprising:receiving information for a sequence of images; anddesignating a first subset of images from the sequence of images to be processed with corresponding chroma components and designating a second subset of images from the sequence of images to be ...

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Номер записи: 16
02-05-2013 дата публикации

Correction of Optical Aberrations

Номер: US20130107085A1
Автор: Hanrahan Patrick M., Horowtiz Mark A., Levoy Marc S., Ng Yi-Ren
Принадлежит: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

Digital images are computed using an approach for correcting lens aberration. According to an example embodiment of the present invention, a digital imaging arrangement implements microlenses to direct light to photosensors that detect the light and generate data corresponding to the detected light. The generated data is used to compute an output image, where each output image pixel value corresponds to a selective weighting and summation of a subset of the detected photosensor values. The weighting is a function of characteristics of the imaging arrangement. In some applications, the weighting reduces the contribution of data from photosensors that contribute higher amounts of optical aberration to the corresponding output image pixel. 1. A computer-implemented method for generating a corrected image of a scene using image data collected by an imaging arrangement during one exposure event , the method comprising:a processor collecting image data with an imaging arrangement, wherein the image data comprises light rays from the scene;the processor tracing light rays through optical elements of the imaging device;the processor mapping the traced light rays to particular photosensors of the imaging device; and computing light ray values that contribute to each pixel of an ideal virtual version of the image as it would be captured by an ideal model of the imaging arrangement, comprising tracing the light rays from a virtual film plane at which the light rays are ideally focused through an ideal model of the imaging arrangement, wherein the virtual film plane is different from the actual film plane of the exposure event;', 'tracing red, blue and green light ray color components separately from an ideal red color ray film plane, an ideal blue color ray film plane, and an ideal green color ray film plane, respectively; and', 'producing output pixels comprising a corrected image value for each pixel., 'the processor generating a virtual image that corrects for at least one ...

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Номер записи: 17
06-06-2013 дата публикации

Imaging device and image processing device

Номер: US20130141611A1
Автор: Hiroyasu Yoshikawa, Masayoshi Shimizu, Nobuyuki Kanto, Takuya Kamimura, Yukio Hirai
Принадлежит: Fujitsu Ltd

A memory unit stores as conversion information which is derived based on a correction coefficient which provides, in a predetermined allowable range from a minimum value, a sum of a norm of a difference between a color difference of a correction target color and a target color which is a target of correction of the correction target color and a correction color obtained by correcting the correction target color using the correction coefficient, and a norm of the correction coefficient to which a predetermined weight coefficient is applied. A color correcting unit converts a color of each pixel of an image captured by an image capturing unit based on the conversion information.

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Номер записи: 18
06-06-2013 дата публикации

Metadata for Use in Color Grading

Номер: US20130141647A1
Автор: Longhurst Peter W., Wilson Brent
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

Methods and systems for color grading video content are presented. A component (e.g. a frame, a shot and/or a scene) of the video content is designated to be a master component and one or more other components of the video content are designated to be slave components, each slave component associated with the master component. A master component color grading operation is performed to the master component. For each one of the slave components, the master component color grading operation is performed to the slave component and a slave color grading operation that is specific to the one of the slave components is also performed. Metadata, which form part of the video content, are created to provide indicators on to whether components of the video are designated as master or slave components. 1. A method for color grading video content , the method comprising:designating a particular component of the video content to be a master component;designating one or more other components of the video content to be slave components, each slave component associated with the master component;performing a master component color grading operation to the master component; and, performing the master component color grading operation to the slave component; and', 'performing a slave color grading operation that is specific to the one of the slave components., 'for each one of the slave components2. A method according to wherein designating the particular component of the video content to be the master component comprises: identifying a plurality of associated components of the video content; and selecting one component claim 1 , from within the plurality of associated components claim 1 , to be the master component.3. A method according to wherein identifying the plurality of associated components of the video content comprises determining the plurality of components because the plurality of components share common acquisition metadata.4. A method according to wherein identifying the ...

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Номер записи: 19
13-06-2013 дата публикации

Extending Image Dynamic Range

Номер: US20130148029A1
Автор: Gish Walter, KIM Hyung-Suk, Li Zhen, Pian Donald, Ruhoff David, Vogt Christopher
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

Enhancing image dynamic range is described. An input video signal that is represented in a first color space with a first color gamut, which is related to a first dynamic range, is converted to a video signal that is represented in a second color space with a second color gamut. The second color space is associated with a second dynamic range. At least two (e.g., three) color-related components of the converted video signal are mapped over the second dynamic range. 130-. (canceled)31. A method for processing a video signal , comprising the steps of:(a) normalizing a first image, with which a scene is encoded in the video signal with a first luminance dynamic range, with a second image, with which the scene is renderable or displayable with a second luminance dynamic range;wherein the second luminance dynamic range is greater than the first luminance dynamic range;wherein the normalizing step comprises the steps of:receiving the first image;receiving the second image;normalizing the first image with the second image to output a third image, a fourth image, and an invertible mapping function;the third image having the second luminance dynamic range and the fourth image having the first luminance dynamic range;the fourth image having a higher precision than the first image;wherein the mapping function is losslessly invertible in relation to the first luminance dynamic range and color space and the second luminance dynamic range and color space; and(b) subsequent to the normalizing step (a), converting an input video signal that is represented in a first color space with a first color gamut which is related to the first luminance dynamic range, the input video signal being provided by the fourth image, to a video signal that is represented in a second color space of a second color gamut, wherein the second color space is associated with the second luminance dynamic range, by mapping at least two color-related components of the converted video signal over the second ...

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Номер записи: 20
13-06-2013 дата публикации

ENCODING IN TWO CHROMINANCE DIRECTIONS

Номер: US20130148714A1
Автор: Reed Alastair M.
Принадлежит:

The present disclosure relates generally signal processing. One claim recites an apparatus comprising: memory for storing a color video signal comprising first data and second data; and a processor. The processor is programmed for: modifying first color information and second color information of the first data by encoding a signal in the first color information such that the signal includes a first signal polarity, and encoding the signal in the second color information such that signal includes a second signal polarity that is inversely related to the first signal polarity, and modifying first color information and second color information of the second data by encoding the signal in the first color information such that signal includes the second signal polarity, and encoding the signal in the second color information such that the signal includes the first signal polarity. Of course, different combinations and claims are provided too. 1. An apparatus comprising:memory for storing a color video signal comprising first data and second data;a processor programmed for:modifying first color information and second color information of the first data by encoding a signal in the first color information such that the signal includes a first signal polarity, and encoding the signal in the second color information such that signal includes a second signal polarity that is inversely related to the first signal polarity,modifying first color information and second color information of the second data by encoding the signal in the first color information such that signal includes the second signal polarity, and encoding the signal in the second color information such that the signal includes the first signal polarity.2. The apparatus of in which encoding the signal utilizes digital watermark embedding.3. The apparatus of in which the signal—once encoded in the first data and in the second data—is imperceptible to a human observer as the video is rendered in real time.4. The ...

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Номер записи: 21
20-06-2013 дата публикации

Multi-Directional Comb Filtering in a Digital Video Decoder

Номер: US20130155328A1
Автор: Jang Sheng De, Liang Zu Jun, Wong Hsiu Min, YANG Qing
Принадлежит: Huaya Microelectronics, Inc.

A multi-directional comb filtering in a digital video decoder is provided. Some embodiments of the present invention provide for a method of filtering, using a multi-directional comb filter, pixel data from a sequence of fields of pixel data, wherein the fields of pixel data comprise a previous field, a current field and a next field, and wherein each of said fields includes a previous line, a current line, a next line. 1. A method of filtering , using a multi-directional comb filter , pixel data from a sequence of fields of pixel data , wherein the fields of pixel data comprise a previous field , a current field and a next field , and wherein each of said fields includes a previous line , a current line , a next line , the method comprising:{'sub': —', '—, 'claim-text': [{'sub': —', '—', '—', '—, '(1) C3dcomb_p/(C3dcomp_p+C3dcomb_n), wherein C3dcomb_p=(cvbs_c−cvbs_p), wherein cvbs_c comprises a second video signal value for the pixel position on the previous field and wherein cvbs_p comprises a first video signal value for the pixel position on the current field; and'}, {'sub': —', '—', '—', '—, '(2) C3dcomb_n/(C3dcomp_p+C3dcomb_n), wherein C3dcomb_n=(cvbs_c−cvbs_n), wherein cvbs_n comprise a third video signal value for the pixel position on the next field; and'}], 'determining a temporal chrominance velocity (K3dcomb) relative to a pixel position of the current field, wherein the temporal chrominance velocity (K3dcomb) is determined as one or more of (1) the first video signal value;', '(2) the second video signal value;', '(3) the third video signal value; and', '(4) the temporal chrominance velocity., 'determining a temporal luminance based on2. The method of claim 1 , further comprising scaling the temporal luminance based on the temporal chrominance velocity.3. The method of claim 1 , wherein the temporal luminance (Y) is:{'br': None, 'i': K', 'd', 'Y', 'd', 'p', 'K', 'd', 'Y', 'd', 'n;, 'sub': —', '—', '—', '—', '—', '—, '3comb*3comb+(1−3comb)*3comb'}{'sub': ...

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Номер записи: 22
20-06-2013 дата публикации

Color Grading Apparatus and Methods

Номер: US20130155330A1
Автор: Atkins Robin, Longhurst Peter W., Margerm Steve, Messmer Neil W.
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

A method for color grading input video data for display on a target display comprises obtaining target display metadata indicative of a capability of the target display, obtaining input video data metadata indicative of image characteristics of the input video data, automatically determining initial values for parameters of a parameterized sigmoidal transfer function, at least one of the initial values based at least in part on at least one of the target display metadata and the input video data metadata and mapping the input video data to color-graded video data according to the parameterized transfer function specified using the initial values 1. A method for color grading input video data for display on a target display , the method comprising:obtaining target display metadata indicative of a capability of the target display;obtaining input video data metadata indicative of image characteristics of the input video data;automatically determining initial values for parameters of a parameterized sigmoidal transfer function, at least one of the initial values based at least in part on at least one of the target display metadata and the input video data metadata; and,mapping the input video data to color-graded video data according to the parameterized transfer function specified using the initial values.2. A method according to wherein the parameters comprise a plurality of control points which characterize the parameterized sigmoidal transfer function.3. A method according to wherein the control points comprise a minimum extremity control point claim 2 , a footroom control point claim 2 , a mid-tone control point claim 2 , a headroom control point claim 2 , and a maximum extremity control point.4. A method according to comprising providing a control for manually adjusting a value of a first parameter claim 1 , the control configured to claim 1 , in response to a manual control adjustment claim 1 , adjust the value of a first parameter and adjust a value of a second ...

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Номер записи: 23
04-07-2013 дата публикации

Display apparatus and method for displaying image

Номер: US20130169662A1
Автор: Jun-Ho Sung, Sang-un Yun
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A display apparatus is provided. The display apparatus includes an input unit which receives an image signal, a display panel unit, a determination unit which determines a color gamut of the image signal, an adjustment unit which adjusts a color gamut of the display panel unit based on the color gamut of the image signal, and a control unit which controls the display panel unit to display the image signal within the adjusted color gamut of the display panel unit.

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Номер записи: 24
04-07-2013 дата публикации

MEDICAL INSTRUMENT

Номер: US20130172675A1
Автор: IGARASHI Makoto, YAMAZAKI Kenji
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP.

A processor includes: first to third matrix circuits that generate an image signal of normal light and an image signal of special light based on an output of a CCD that picks up an image of returning light of light that is irradiated onto living tissue; a color discrimination circuit that discriminates a color tone for respective pixels in accordance with a luminance level of an image signal of the special light; and a color correction circuit that, in an observation mode that uses special light, if an observation object other than living tissue is discriminated as being a red color tone based on the color discrimination circuit, performs color correction to a yellow color tone that is similar to a color tone that the observation object other than living tissue is discriminated as being in an observation mode that uses normal light. 1. A medical instrument , comprising:image signal generation means that generates an image signal of normal light and an image signal of special light based on an output of image pickup means that picks up an image of returning light of light that is irradiated onto living tissue by illumination means;color discrimination means that discriminates a color tone for respective pixels in accordance with a luminance level of an image signal of the special light, and discriminates whether or not the respective pixels correspond to an observation object other than the living tissue; andcolor correction means that, in an observation mode that uses the special light, if an observation object other than the living tissue is discriminated as being a red color tone based on the color discrimination means, performs color correction to a yellow color tone that is similar to a color tone that the observation object other than the living tissue is discriminated as being in an observation mode that uses the normal light.2. The medical instrument according to claim 1 , wherein a luminance level of an image signal of the special light is a luminance level ...

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Номер записи: 25
11-07-2013 дата публикации

MONITOR CHAINING AND DOCKING MECHANISM

Номер: US20130176496A1
Автор: Forni Charles A., Sisto John F.
Принадлежит: MICROCHIP TECHNOLOGY INCORPORATED

A circuit that supports multiple monitors, docking functions, and protected content via one cable. The circuit includes a receiver that receives multiple video streams, each including respective video data, a mux/demux, coupled to the receiver, that determines which video stream to display on a monitor, a display interface coupled to the first mux/demux, wherein the display interface is configured to generate output signals based on the video data of the determined video stream to be displayed on the first monitor, a transmitter coupled to the mux/demux, and a transmit physical interface (TPI) coupled to the transmitter. The mux/demux sends at least a remainder of the video streams to the transmitter, which sends them to the TPI, which transmits them as output, useable as input to further instances of the circuit. 1. A system , comprising:a receiver, configured to receive a signal comprising a plurality of video streams, wherein each video stream comprises respective video data;a first mux/demux, coupled to the receiver, wherein the first mux/demux is configured to determine which video stream of the plurality of video streams is to be displayed on a first monitor;a display interface coupled to the first mux/demux, wherein the display interface is configured to generate output signals based on the video data of the determined video stream to be displayed on the first monitor;a transmitter, coupled to the first mux/demux; anda transmit physical interface, coupled to the transmitter, wherein the first mux/demux is further configured to send at least a remainder of the video streams of the plurality of video streams to the transmitter, wherein the transmitter is configured to send the at least a remainder of the video streams to the transmit physical interface, and wherein the transmit physical interface is configured to transmit the at least a remainder of the video streams as output, wherein the at least a remainder of the video streams are useable as input to one or ...

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Номер записи: 26
18-07-2013 дата публикации

IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, IMAGE PROCESSING PROGRAM, AND RECORDING MEDIUM

Номер: US20130182185A1
Автор: Koyama Daisuke, Manba Osamu
Принадлежит: SHARP KABUSHIKI KAISHA

An image processing device () includes: a luminance distribution information preparation section () for preparing a luminance histogram in which each luminance range serves as a class, by counting the number of pixels belonging to each luminance range; a weight correction section () for generating, for each luminance range, a weighting value which is proportional to a corresponding class value; and an image processing section () for correcting a luminance value of each pixel so that a difference between a maximum luminance value and a minimum luminance value in the luminance range is determined by an increasing function with respect to both (i) a frequency of the luminance range and (ii) a weighting value of the luminance range. 1. An image processing device for correcting a luminance value of each pixel included in an image , comprising:counting means for counting, for each of a plurality of luminance ranges into which an entire luminance range, within which the luminance value falls, is divided, the number of pixels as a first correction value, each of the pixels being included in the image and having a luminance belonging to the each of the plurality of luminance range; andluminance correcting means for correcting the luminance value of each pixel included in the image,in a case where (i) a first luminance range is provided on a low-luminance side with respect to a second luminance range, among the plurality of luminance ranges, and (ii) a first correction value for the first luminance range and a first correction value for the second luminance range are approximately equal to each other, the luminance correcting means correcting the luminance value of each pixel so that an amplification rate in the correcting carried out for the second luminance range is greater than an amplification rate in the correcting carried out for the first luminance rangethe amplification rate in the correcting carried out for the first luminance range being an amplification rate of a ...

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Номер записи: 27
25-07-2013 дата публикации

Low-Overhead Processing of Video In Dedicated Hardware Engines

Номер: US20130188096A1
Автор: Brijesh Rameshbhai Jadav, Hardik Tushar Shah, Purushotam Kumar, Sivaraj Rajamonickam
Принадлежит: Texas Instruments Inc

This invention allows the application software to submit multiple (N) frames belonging to different and/or same channels in one submission. The driver maintains a request queue and serializes requests and manages the hardware utilization. The driver informs the software through a callback function when the entire submission has been serviced.

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Номер записи: 28
01-08-2013 дата публикации

Image processing methods and apparatus using localized gamut definitions

Номер: US20130194321A1
Автор: Chun Chi Wan, Neil W. Messmer
Принадлежит: Dolby Laboratories Licensing Corp

Methods and apparatus are provided for encoding and decoding image data using localized gamut definitions. The localized gamut definitions may be defined based on gamut characteristics of the image data. A gamut transform is applied to the image data wherein color coordinates specified by the image data are mapped to corresponding color coordinates in the localized gamut definition. Use of localized gamut definitions may facilitate image data compression of increased color depth specification of image data.

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Номер записи: 29
01-08-2013 дата публикации

IMAGE-TAKING APPARATUS AND METHOD FOR CONTROLLING THE SAME

Номер: US20130194469A1
Автор: Kogure Kentaro, Nakata Takamichi
Принадлежит: CANON KABUSHIKI KAISHA

An image-taking apparatus changes a switching threshold value for switching between a color mode and a monochrome mode according to a maximum gain value set by a maximum gain setting unit so that switching between the color and monochrome modes can be optimally performed regardless of setting of the maximum gain value. The image-taking apparatus includes a threshold value correction unit configured to correct the switching threshold value according to the maximum gain value. The threshold value correction unit sets the switching threshold value with the maximum gain value set larger than an initial value to be smaller than the switching threshold value with the maximum gain value set smaller than the initial value. 1. An image-taking apparatus comprising:a gain control unit configured to control a gain for amplifying a signal from an image-pickup sensor;an image data generation unit configured to generate image data representing a subject image captured by the image-pickup sensor;a switching unit configured to switch an output of the image data generated by the image data generation unit to either a color output or a monochrome output;a maximum gain setting unit configured to set a maximum value of the gain controlled by the gain control unit;a switching evaluation value calculation unit configured to calculate a switching evaluation value based on an output from the image data generation unit;a determination unit configured to determine the switching of the output of the image data by the switching unit based on a result of comparison between the switching evaluation value and a switching threshold value for switching the output of the image data to either a color output or a monochrome output; anda threshold value correction unit configured to correct the switching threshold value according to the maximum gain value set by the maximum gain setting unit,wherein the threshold value correction unit sets the switching threshold value with the maximum gain value set ...

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Номер записи: 30
01-08-2013 дата публикации

TELEVISION SYSTEM AND METHOD FOR MANAGING APPLICATIONS THEREIN

Номер: US20130194499A1
Автор: Huang Yi-Wei, Huang Ying-Jui, Tien Wen-Jin
Принадлежит: MStar Semiconductor, Inc.

A storage medium disposed in a television is provided. A code of a television software system is stored in the storage medium. The television software system includes a first application, a second application and an application management module. The first application has a first function library. The second application has a second function library different from the first function library. The application management module manages the first application and the second application according to the first function library and the second function library, respectively. 1. A storage medium embedded in a television , the storage medium storing code of a television software system , the television comprising a processor for executing the code of the television software system , the television software system comprising:a first application, having a first function library;a second application, having a second function library different from the first function library; andan application management module, for managing the first application and the second application according to the first function library and the second function library, respectively.2. The storage medium according to claim 1 , wherein after the application management module activates a target application in the applications claim 1 , the target application sends a callback function list to the application management module.3. The storage medium according to claim 2 , wherein the callback function list comprises at least one applicable function and at least one function format in the function library of the target application.4. The storage medium according to claim 3 , wherein the applicable function comprises at least one of a focus assigning function claim 3 , a focus withdrawal function claim 3 , a resource assigning function claim 3 , a resource withdrawal function and a termination function.5. The storage medium according to claim 1 , wherein the application management module communicates with the ...

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Номер записи: 31
01-08-2013 дата публикации

Method, Apparatus and Computer Program Product for Providing Improved Gray Mapping

Номер: US20130194506A1
Автор: Eyvazkhani Mahbod
Принадлежит: CORE WIRELESS LICENSING S.A.R.L.

An apparatus for providing improved color intensity mapping may include a processor. The processor may be configured to divide color intensity value byte data into high priority portions and low priority portions distributed as constellation points in a constellation matrix and to provide separation between each of the constellation points by assigning a unique mapping code to a plurality of the constellation points. 1. A method comprising:dividing color intensity value data into high priority portions and low priority portions distributed as constellation points in a constellation matrix using a processor, the color intensity value data being included in a video signal being processed by the processor prior to transmission to a receiver; andproviding separation between each of the constellation points by assigning a unique mapping code to a plurality of the constellation points.2. The method of claim 1 , further comprising providing a different forward error correction code to the high priority portions than to the low priority portions prior to providing the separation between the constellation points.3. The method of claim 2 , wherein providing the different forward error correction code comprises applying a stronger forward error correction code to the high priority portions than the forward error correction code applied to the low priority portions.4. The method of claim 1 , wherein dividing the color intensity value byte data comprises dividing each color intensity value byte into a high priority portion corresponding to the most significant bits of the gray value byte and a low priority portion corresponding to the least significant bits of the gray value byte.5. The method of claim 1 , wherein providing separation comprises dividing the constellation matrix into portions.6. The method of claim 5 , further comprising assigning a prefix portion of the mapping code to differentiate each of the portions of the constellation matrix.7. The method of claim 6 , ...

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Номер записи: 32
08-08-2013 дата публикации

DISPLAY DEVICE AND COLOR ADJUSTMENT METHOD THEREOF, AND METHOD FOR DISPLAYING VIDEO SIGNAL

Номер: US20130201402A1
Автор: Hung Chung-Wen, Su Wei-Chen
Принадлежит: NOVATEK MICROELECTRONICS CORP.

A device for image processing includes: a video signal receiver, for receiving at least one video signal; a color engine, comprising a local adjusting unit, for dividing pixels of an image frame of the at least one video signal into multiple pixel groups according to luminance factors of the pixels in HSI color space and adjusting the luminance factors of a specific pixel group of the pixel groups having luminance factors in a predetermined range that is a part of a full range of luminance factor by moving the pixels of the specific pixel group from a region to another region of the HSI color space without changing color axes of the HSI color space. 1. A device for image processing , comprising:a video signal receiver, for receiving at least one video signal;a color engine, comprising a local adjusting unit, for dividing pixels of an image frame of the at least one video signal into multiple pixel groups according to luminance factors of the pixels in a HSI color space, in which H represents hue; S represents saturation; and I represents intensity, and adjusting the luminance factors of a specific pixel group of the pixel groups having luminance factors in a predetermined range that is a part of a full range of luminance factor by moving the pixels of the specific pixel group from a region to another region of the HSI color space without changing color axes of the HSI color space, so as to locally adjust the luminance factors of the pixels of the specific pixel group under the HSI color space without changing the luminance factors of the pixels of any other pixel groups other than the specific pixel group of the image frame under the HSI color space; andan output stage, coupled to the color engine, for outputting the adjusted at least one video signal.2. The device for image processing according to claim 1 , wherein the pixels of the specific pixel groups are further confined within a predetermined range of color hue that is a part of full range of color hue.3. The ...

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Номер записи: 33
08-08-2013 дата публикации

Double Stacked Projection

Номер: US20130201403A1
Автор: Iversen Steen Svendstorp
Принадлежит: IMAX CORPORATION

A method for producing a first output image and a second output image for being projected by a first projector and a second projector, respectively, is disclosed. The method comprises: providing a source image comprising a plurality of pixels, each pixel having a source value, providing an inverted threshold value for each pixel of the plurality of pixels, and generating thereof a temporary image comprising a temporary value for each pixel of the plurality of pixels. The method further comprises: generating the first output image comprising a first output value for each pixel of the plurality of pixels, the first output value being generated from the temporary value and the source value for each pixel, and generating the second output image comprising a second output value for each pixel of the plurality of pixels, the second output value being generated from the temporary value. 1106-. (canceled)107. A method of producing from a received image and a threshold image a first image and a second image , comprising:determining an upper bound image and a lower bound image based on pixel values of each of the received image and the threshold image;producing the first image and the second image by using a smoothing filter process in combination with the upper bound image, the lower bound image, the received image and the threshold image, wherein the first image has a different spatial content frequency than the second image based on the smoothing filter process;projecting the first image onto a surface by a first projector; andprojecting the second image onto the surface by a second projector,wherein the first image and the second image have pixel values that are within illumination limits of the first projector and the second projector.108. The method of claim 107 , wherein the lower bound image represents pixel values that exceed a illumination intensity limit of the first projector or the second projector.109. The method of claim 107 , wherein the upper bound image ...

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Номер записи: 34
05-09-2013 дата публикации

IMAGE PROCESSING APPARATUS AND METHOD FOR CONTROLLING THE SAME

Номер: US20130229551A1
Автор: Kunieda Shutaro
Принадлежит: CANON KABUSHIKI KAISHA

A first generation unit generates a RAW image reduced in the horizontal direction from a RAW image including pixels each having single-color signal information, by limiting the band of spatial frequencies in the horizontal direction and decreasing the number of pixels in the horizontal direction. The RAW image reduced in the horizontal direction is stored in a line memory. A second generation unit generates a reduced RAW image by decreasing, at least in the vertical direction, the number of pixels of the RAW image reduced in the horizontal direction. This makes it possible to generate a reduced RAW image using little memory capacity. 1. An image processing apparatus comprising:a first generation unit that limits a band of spatial-frequency components of a first image data in the horizontal direction and generates a second image data by decreasing the number of pixels of the band-limited first image data in the horizontal direction;a storage unit that stores the second image data; anda second generation unit that generates a third image data by decreasing the number of pixels in the vertical direction and the horizontal direction of the second image data stored in said storage unit.2. The apparatus according to claim 1 , whereinsaid second generation unit comprises:a two-dimensional spatial low-pass filter configured to limit the band of the spatial-frequency components in the vertical direction and the horizontal direction for the second image data; anda horizontal vertical reduction unit that thins out, in the vertical direction and the horizontal direction, the second image data to which said two-dimensional spatial low-pass filter has been applied, thereby generates the third image data.3. The apparatus according to claim 1 , further comprising a correction unit that corrects a defective pixel included in the second image data stored in said storage unit claim 1 ,wherein said second generation unit generates the third image data from the second image data ...

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Номер записи: 35
05-09-2013 дата публикации

Attached Device Control on Television Event

Номер: US20130229577A1
Автор: McRae Matthew Blake
Принадлежит: VIZIO, INC.

A television includes at least two inputs and at least one connected device (component). Upon a system event such as changing from one input to another input, the television signals the at least one connected device to change at least one operating parameter of the device. 1. A television system comprising:a television, having a display, and a user interface, and having multiple ports, each connectable to devices which communicate content with the television;a processor in said television, receiving commands, and controlling changing which of the multiple ports is active;a memory, storing settings that are associated with said ports, and said settings control at least one external device,including a first set of settings for a first external device that are used when a first port is connected to said television, and a second set of settings for said first external device that is used when a second port is connected to said television, where said first set of settings is different settings than said second set of settings, but is for the same external device; andsaid television detecting which of the ports is connected to the television, and sending information that is based on said settings for the connected port to control said at least one external device.2. The system of claim 1 , wherein the interface between the television and the at least one external device is via infrared.3. The system of claim 1 , wherein said ports are different inputs to the television claim 1 , and each of said ports defines multiple different controls for the external devices.4. The system of claim 1 , wherein said external devices includes both an audio device and a lighting device.5. The system of claim 1 , wherein the interface between the television and the at least external device is integrated into a connection between the television and the at least one external device.6. The system of claim 5 , wherein the at least one external device is controlled via a Consumer Electronics ...

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Номер записи: 36
12-09-2013 дата публикации

FIELD SEQUENTIAL COLOR ENCODING FOR DISPLAYS

Номер: US20130235273A1
Автор: Cox Berry Tod, King Carey, Van Ostrand Daniel K.
Принадлежит: Rambus Delaware LLC

The optical performance is enhanced of display systems that use field sequential color and pulse width modulation to generate color and color gray scale values. Such enhancement may be achieved by various data encoding methods disclosed herein that may include temporal redistribution of bit values to mitigate color motional artifacts associated with field sequential color-based display systems, selective combination of intensity modulation, pulse width modulation, and/or the noncontiguous sequencing of primary colors. There is further an intelligent real-time dynamic manipulation of gray scale values in portions of an image that are computationally determined to be images of objects moving against a global background, so as to temporally front load or concentrate the bits comprising such moving objects and thereby further mitigate said motional artifacts using both actual and virtual aggregate pulse truncation across all primary colors being modulated. 1. A method comprising:displaying a video image using field sequential color encoded in a plurality of video frames;receiving the plurality of video frames for displaying a foreground object and a background image in the video image;determining in the received plurality of video frames that the foreground object of a video image of at least one of the video frames is in motion relative to the background image of the video image;modifying a gray scale of the at least one of the video frames associated with the foreground object that is in motion relative to the background image of the video image to reduce the number of gray scales defining the foreground object;encoding the plurality of video frames including the modified video frame for image generation; anddisplaying the encoded plurality of video frames, including the modified video frame.2. A method for removing field sequential color artifacts that arise in a display system that temporally segregates color components of a video image and presents each frame of ...

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Номер записи: 37
19-09-2013 дата публикации

Image processing apparatus and image processing method

Номер: US20130242146A1
Автор: Satoru Komatsu, Yasuhiro Sawada
Принадлежит: Canon Inc

An image processing apparatus is configured to reduce a color blur in a color image, and includes a color blur process determination part configured to change at least one of a color blur that serves as a reduction object and an estimation method of an amount of the color blur according to at least one of a characteristic of an image and an imaging condition.

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Номер записи: 38
19-09-2013 дата публикации

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Номер: US20130242199A1
Автор: HATANO Toshinobu
Принадлежит: Panasonic Corporation

In a first filtering processing step, RAW data of a source image is subjected to a pixel-based filtering process along a first array direction to divide the RAW data into a first luminance data and a first color carrier data. In a first luminance distribution equalization processing step, the luminance distribution of the first luminance data in the first array direction is corrected to be uniform to produce a second luminance data. In a first color array reproduction processing step, the first color carrier data is re-synthesized with the second luminance data to produce a first multiple-color array data. In a second filtering processing step, the first multiple-color array data is subjected to a pixel-based filtering process along a second array direction to divide the first multiple-color array data into a third luminance data and a second color carrier data. In a second luminance distribution equalization processing step, the luminance distribution of the third luminance data in the second array direction is corrected to be uniform to produce a fourth luminance data. In a second color array reproduction processing step, the second color carrier data is re-synthesized with the fourth luminance data to produce a second multiple-color array data. 1. An image processing device , including:a first distribution equalization processor for generating a first multiple-color array data by inputting RAW data of a source image, the source image RAW data being outputted by mixing an even number of pixels from an image sensor having multiple-color pixels where an array of colors has a periodicity and having a pixel data distribution non-uniform in first and second array directions orthogonal to each other, and by correcting the pixel data distribution of the inputted source image RAW data to be uniform in the first array direction; anda second distribution equalization processor for inputting the first multiple-color array data and generating a second multiple-color array ...

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Номер записи: 39
26-09-2013 дата публикации

Image processing device and image processing method

Номер: US20130249931A1
Автор: Masami Morimoto
Принадлежит: Individual

According to one embodiment, an image processing device configured to correct image signal, includes: a histogram generating module configured to generate histograms for each luminance value for an image that is based on an input image signal; a color emphasizing module configured to determine a color emphasis characteristic through color difference corrections according to the generated histograms; and a gradation converting module configured to generate a corrected image signal by converting gradations of the input image signal according to the determined color emphasis characteristic.

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Номер записи: 40
26-09-2013 дата публикации

Image processing apparatus, image processing method, and computer-readable medium

Номер: US20130251259A1
Автор: Hiroyuki Sakai, Junichi Nakagawa, Kiyoshi Umeda
Принадлежит: Canon Inc

An image processing apparatus for applying a color balance correction to input image data, comprises a holding unit which holds information indicating a locus of a change in highlight color when a color temperature for image data is changed on a color space; a highlight color calculation unit which calculates a highlight color from the image data; a distance calculation unit which calculates a distance between the highlight color and the highlight color locus held in the holding unit on the color space; a reliability calculation unit which calculates a reliability for a value of the highlight color calculated by the highlight color calculation unit in accordance with the distance calculated by the distance calculation unit; and a color balance correction unit which applies the color balance correction to the image data using the highlight color and the reliability.

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Номер записи: 41
03-10-2013 дата публикации

STRIPE NOISE CORRECTION METHOD OF CAPTURED IMAGE, PHOTOGRAPHING APPARATUS AND ELECTRONIC ENDOSCOPIC APPARATUS

Номер: US20130258082A1
Автор: UCHIHARA Masanobu
Принадлежит: FUJIFILM Corporation

A stripe noise correction method of a captured image includes: storing a value calculated by rounding off a portion below the decimal point of a stripe noise value into a memory as correction data of an integer part that corrects a stripe noise for each color; and storing the magnitude of a quantization error calculated by rounding off for each color and for each pixel column or each pixel row into the memory as correction data of a fractional part; and correcting captured image signals of the image captured by a image sensor with the correction data of the integer part and the fractional part read from the memory. 1. A stripe noise correction method of a captured image comprising:capturing, by a single-plate type image sensor for color image capturing that includes a plurality of pixels arranged in a square lattice array and a plurality of color filters with different colors which are respectively stacked on each of the pixels in a mosaic type, a plurality of images each of which has the same color with one of the colors of the color filters;calculating an average image for color images for the plurality of images and dividing the captured image signals of the average image into individual colors of the color filters;calculating, for each color, the stripe noise value for each pixel column or each pixel row by subtracting the average value of the captured image signals in the entire area where the pixels of the image sensor are arranged from the average value of the captured image signals of each pixel column or each pixel row of the image sensor;storing a value calculated by rounding off a portion below the decimal point of the stripe noise value into a memory as correction data of an integer part that corrects the stripe noise for each color; and storing the magnitude of a quantization error calculated by rounding off for each color and for each pixel column or each pixel row into the memory as correction data of a fractional part; andcorrecting the captured ...

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Номер записи: 42
03-10-2013 дата публикации

VIDEO PROCESSOR AND VIDEO PROCESSING METHOD

Номер: US20130258200A1
Автор: Kobayashi Takero, Komaki Akinori, Matsubara Shinzo, Morohoshi Toshihiro, NAKAMURA Atsushi
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a video processor includes an input module and a display controller. The input module is configured to input a plurality of first video signals compliant with a video having a first resolution, and to be able to input a second video signal compliant with a video having a second resolution higher than the first resolution instead of at least one of the first video signals. The display controller is configured to perform control to display the input first video signals in domains into which a display screen compliant with the second resolution is divided. The display controller is configured to perform control to display the input second video signal on the whole display screen. 1. A video processor comprising:an input module configured to input a plurality of first video signals compliant with a video having a first resolution, and to be able to input a second video signal compliant with a video having a second resolution higher than the first resolution in place of at least one of the first video signals; anda display controller configured to display the first video signals in divided domains of a display screen compliant with the second resolution when only the first video signals are inputted to the input module, and to display the second video signal on the whole display screen when the second video signal is inputted to the input module.2. The video processor of claim 1 , further comprising a setting module configured to selectively set the display controller to a first display mode claim 1 , in which the second video signal is displayed on the whole display screen when the second video signal is inputted to the input module.3. The video processor of claim 2 , wherein the display controller is configured to scale down the second video signal to be compliant with the first resolution and display in the divided domain of the display screen claim 2 , or to display a black screen compliant with the first resolution in the divided domain ...

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Номер записи: 43
03-10-2013 дата публикации

SIGNAL PROCESSING APPARATUS AND ASSOCIATED METHOD

Номер: US20130258201A1
Автор: Chang Chu-Hsin, Cheng Kai-Wen, Liao Yi-Ying, Lin Tung-Sheng, Tung Tai-Lai
Принадлежит:

A signal processing apparatus includes an initial detecting module, a mixer, a symbol rate detecting module, a judging module and a correcting module. The initial detecting module determines an initial carrier frequency offset of an input signal according to a spectrum of the input signal. The mixer adjusts the input signal according to the initial carrier frequency offset to generate a frequency-compensated signal. The symbol rate detecting module determines a symbol rate of the input signal. The judging module judges whether the initial carrier frequency offset is correct according to the frequency-compensated signal. When a judgment result of the judging module is negative, the correcting module determines a corrected carrier frequency offset according to the symbol rate and the spectrum. 1. A signal processing apparatus , comprising:an initial detecting module, for determining an initial carrier frequency offset of an input signal according to a spectrum of the input signal;a mixer, for adjusting the input signal according to the initial carrier frequency offset to generate a frequency-compensated signal;a symbol rate detecting module, for determining a symbol rate of the input signal;a judging module, for performing a phase recovery on the frequency-compensated signal, and judges whether the initial carrier frequency offset is correct as a judgement result according to whether the phase recovery renders a phase locking; anda correcting module, coupled to the mixer, for selectively determining a corrected carrier frequency offset according to the symbol rate and the spectrum and providing the corrected carrier frequency offset to the mixer based on the judgment result.2. The apparatus according to claim 1 , wherein when the judgment result of the judging module is negative claim 1 , the correcting module selects a frequency segment having a width corresponding to the symbol rate from the spectrum claim 1 , and renders the corrected carrier frequency offset with ...

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Номер записи: 44
03-10-2013 дата публикации

Method and Apparatus for Managing Display Limitations in Color Grading and Content Approval

Номер: US20130258203A1
Автор: Atkins Robin, Wan Chun C., Webster Anne
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

Methods and apparatus are provided for ensuring consistency in the appearance of video data displayed on displays having different capabilities than a target display. Some embodiments comprising modifying at least one pixel of input video data such that the modified pixel represents the appearance of the at least one pixel when displayed by a target display. In some embodiments, modifying the at least one pixel comprises replacing an original pixel value of the at least one pixel with a replacement pixel value representing a modeled display of the original pixel value by the target display. 122-. (canceled)23. A color grading tool for producing color-graded display video data from input video data , the color grading tool comprising:a color grading adjustment module operable to color-grade the input video data to yield color-graded video data while displaying the color-graded video data on a color-grading display; anda display conformer configured to modify the color-graded video data for display on a target display other than the color-grading display and having a smaller fidelity range than the color-grading display, by:modeling the display of all or part of the color-graded video data on the color-grading display by a computational display model of the target display to determine one or more modified pixel values that represent the appearance of one or more corresponding pixels of the color-graded video data when displayed on the color-grading display; andmodifying the color-graded video data by replacing such pixel values of one or more pixels of the color-graded video data for which the pixel values are outside a fidelity range of the target display with the corresponding ones of the modified pixel values, wherein the modified pixel values include substitute chromaticities and/or luminances related to the target display, and whereinthe display conformer is configured to apply the input video data to the computational display model of the target display, the ...

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Номер записи: 45
24-10-2013 дата публикации

IMAGING SYSTEM USING A LENS UNIT WITH LONGITUDINAL CHROMATIC ABERRATIONS AND METHOD OF OPERATING

Номер: US20130278726A1
Автор: Kamm Markus, Muhammad Atif, Siddiqui Muhammad, Unruh Christian
Принадлежит: SONY CORPORATION

A lens unit of an imaging unit features longitudinal chromatic aberration. From an imaged scene, an imaging sensor unit captures non-color-corrected first images of different spectral content. An intensity processing unit computes broadband luminance sharpness information from the first images on the basis of information descriptive for imaging properties of the lens unit. A chrominance processing unit computes chrominance information on the basis of the first images. A synthesizing unit combines the computed chrominance and luminance information to provide an output image having, for example, extended depth-of-field. The imaging unit may be provided in a camera system, a digital microscope, as examples. 1. An imaging system comprisingan imaging unit that comprises a lens unit showing longitudinal chromatic aberration and an imaging sensor unit configured to generate, from an imaged scene, non-colour-corrected first images of different spectral content,a intensity processing unit configured to compute broadband luminance sharpness information on the basis of the first images and information descriptive for imaging properties of the lens unit,a chrominance processing unit configured to compute chrominance information on the basis of the first images, anda synthesizing unit configured to combine the chrominance and broadband luminance sharpness information to provide an output image.2. The imaging system of claim 1 , whereinthe imaging sensor unit is configured to output a greyscale image and the intensity processing unit is configured to compute the broadband luminance sharpness information on the basis of the greyscale image.3. The imaging system of claim 1 , whereinthe imaging unit is configured to supply at least two colour-filtered first images,the intensity processing unit comprises a luminance pre-processing unit configured to generate a greyscale image or intensity function from the at least two colour-filtered first images, andthe intensity processing unit is ...

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Номер записи: 46
31-10-2013 дата публикации

Projector

Номер: US20130286052A1
Автор: Katsumi Asakawa
Принадлежит: Mitsubishi Electric Corp

A projector includes a light modulation part modulating light generated by a light source part, a video signal processing part processing a video signal to be input, and a projection optical system projecting the light modulated by the light modulation part onto an external projection target to obtain a projected video image. The video signal processing part includes a blue light effect alleviating part alleviating effects of blue light on retinas. In a case where among a red signal, a green signal, and a blue signal included in a video signal, only a ratio of the blue signal is high, the blue light effect alleviating part generates a blue light effect alleviating signal for controlling the light source part to reduce the brightness of the projected video image as a whole.

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Номер записи: 47
31-10-2013 дата публикации

Method of processing a video content allowing the adaptation to several types of display devices

Номер: US20130286286A1
Автор: Hassane Guermoud, Jurgen Stauder, Laurent Blonde
Принадлежит: Thomson Licensing SAS

Method wherein each image of the content is transformed using at least one pre-transformed image which is associated with a key image of this content wherein, from each key image and an associated pre-transformed image, a color transform is derived, and wherein each color transform is applied to a selection of images of this content which is associated with said key image. Applied to a content broadcast system comprising a server and a receiver to which are connected several types of display devices, the invention advantageously makes it possible to adapt the content to these different types.

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Номер записи: 48
07-11-2013 дата публикации

DISPLAY DEVICE AND METHOD FOR PRESENTING INFORMATION ON ENTITIES DISPLAYED ON VIDEO CONTENT

Номер: US20130293780A1
Автор: AGRAWAL Gunjan, BANSAL Ravi Kant, Jain Ajit, KHANDELWAL Devendra, SOLANKI Neeraj, SUBRAMANIAN Muthukumar, THAKUR Pankaj
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A display device and a method for providing information thereof are provided. The display device includes a display which displays a video content, a communication device which communicates with an external device, an input which receives a user command, and a controller which, when a predetermined command is input through the input, detects a plurality of entities included in the video content, and when at least one of the plurality of entities is selected through the input, controls the display to collect and display information regarding the selected at least one entity through the communication device. 1. A display device , comprising:a display configured to display a video content;a communication device configured to communicate with an external device;an input configured to receive a user command; anda controller configured to, when a predetermined command is input through the input, detect a plurality of entities included in the video content, and when at least one of the plurality of entities is selected through the input, control the display to collect and display information regarding the selected at least one entity through the communication device.2. The display device as claimed in claim 1 , wherein the controller obtains a plurality of tag information regarding each of the plurality of entities claim 1 , andwherein the display displays each of the plurality of tag information adjacent to each entity.3. The display device as claimed in claim 2 , wherein the controller claim 2 , when at least one of the displayed plurality of tag information is selected through the input claim 2 , collects information regarding an entity corresponding to the selected at least one tag information through the communication device.4. The display device as claimed in claim 1 , wherein the controller collects and aggregates information regarding the selected at least one entity from a plurality of information sources claim 1 , andwherein the display displays the aggregated ...

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Номер записи: 49
14-11-2013 дата публикации

IMAGE PROCESSING APPARATUS, METHOD FOR CONTROLLING THE SAME AND STORAGE MEDIUM

Номер: US20130300901A1
Автор: Hirai Shinya
Принадлежит: CANON KABUSHIKI KAISHA

An image processing apparatus comprises a noise suppression unit configured to perform noise suppression processing to a plurality of color signals obtained by band dividing an image signal by color, a one-plane conversion unit configured to generate a one-plane image having one signal per pixel, from the plurality of color signals to which the noise suppression processing has been done by the noise suppression unit, a processing unit configured to perform image processing in which a frequency characteristic changes, with respect to the one-plane image, a noise extraction unit configured to extract a noise component from the image signal, and an adding unit configured to add the noise component extracted by the noise extraction unit to a signal obtained by the processing unit. 1. An image processing apparatus comprising:a noise suppression unit configured to perform noise suppression processing to a plurality of color signals obtained by band dividing an image signal by color;a one-plane conversion unit configured to generate a one-plane image having one signal per pixel, from the plurality of color signals to which the noise suppression processing has been done by said noise suppression unit;a processing unit configured to perform image processing in which a frequency characteristic changes, with respect to the one-plane image;a noise extraction unit configured to extract a noise component from the image signal; andan adding unit configured to add the noise component extracted by said noise extraction unit to a signal obtained by said processing unit,wherein said noise suppression unit comprising:a first noise suppression unit configured to perform the noise suppression processing to the color signal of each color in the plurality of color signals;a first reduction unit configured to reduce a size of the plurality of color signals;a second noise suppression unit configured to perform the noise suppression processing to the plurality of color signals of which the ...

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Номер записи: 50
21-11-2013 дата публикации

IMAGE CAPTURING APPARATUS AND EXPOSURE CONTROL METHOD

Номер: US20130308010A1
Автор: Urisaka Shinya
Принадлежит:

In an image capturing apparatus, a subject image is converted into an image signal, which undergoes automatic correction processing including white balance correction processing, and further undergoes image quality change processing. A first evaluation value indicating a largest value of an R signal, a G signal, and a B signal of the image signal undergone the image quality change processing and a second evaluation value indicating a luminance of the image signal undergone the image quality change processing are detected. A control evaluation value is calculated using weighted average of the first evaluation value and the second evaluation value according to at least one of an amount of image quality changing effect due to the image quality change processing and a reliability of the automatic correction processing, and exposure control is performed based on the control evaluation value. 1. An image capturing apparatus comprising:an image sensor configured to convert a subject image into an image signal and output the image signal;an automatic correction unit configured to perform automatic correction processing including white balance correction processing on the image signal output from the image sensor;an image quality changing unit configured to perform image quality change processing on the image signal on which the automatic correction processing has been performed by the automatic correction unit;a first evaluation value detection unit configured to obtain a first evaluation value indicating a largest value of an R signal, a G signal, and a B signal of the image signal on which the image quality change processing has been performed by the image quality changing unit;a second evaluation value detection unit configured to detect a second evaluation value indicating a luminance of the image signal on which the image quality change processing has been performed by the image quality changing unit; andan exposure control unit configured to calculate a control ...

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Номер записи: 51
21-11-2013 дата публикации

Video Signal Processing Apparatus and Video Signal Processing Method

Номер: US20130308053A1
Автор: Hiroaki Komaki
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, an apparatus comprises a memory and one or more hardware processors that are coupled to the memory. The one or more processors are configured to: (A) determine whether an input video signal is one of (i) a video signal of a film material or (ii) a video signal of a video material, (B) perform super-resolution processing on both of a color component and an luminance component of the input video signal if the input video signal is the video signal of the film material, and (C) perform super-resolution processing on the color component of the input video signal without performing super-resolution processing on the luminance component if the input video signal is the video signal of a video material.

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Номер записи: 52
28-11-2013 дата публикации

COMPUTER-READABLE STORAGE MEDIUM STORING IMAGE PROCESSING PROGRAM, IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

Номер: US20130314604A1
Автор: Funabashi Ryoichi, TADA Atsuko, Tanaka Ryuta
Принадлежит: FUJITSU LIMITED

A computer-readable storage medium storing an image processing program that causes a computer to execute a process includes, synthesizing, for each of frames included in a video image and to be processed, a synthesis image with an image of a synthesis target region existing in the frame by repeatedly executing a calculation using a Poisson's equation on the basis of the image of synthesis target region existing in the frame to be processed and the synthesis image to be replaced with the image of the synthesis target region, and thereby calculating, from an initial value image, a synthesis result image corresponding to a result obtained by synthesizing the synthesis image with the synthesis target region so as to sequentially execute a synthesis process on the frames of the video image; and setting, for each of the frames to be processed, initial values by setting, as the initial value image. 1. A computer-readable storage medium storing an image processing program that causes a computer to execute a process comprising:synthesizing, for each of frames included in a video image and to be processed, a synthesis image with an image of a synthesis target region existing in the frame by repeatedly executing a calculation using a Poisson's equation on the basis of the image of synthesis target region existing in the frame to be processed and the synthesis image to be replaced with the image of the synthesis target region, and thereby calculating, from an initial value image, a synthesis result image corresponding to a result obtained by synthesizing the synthesis image with the synthesis target region so as to sequentially execute a synthesis process on the frames of the video image; andsetting, for each of the frames to be processed, initial values by setting, as the initial value image used for the calculation executed in the synthesizing, a synthesis result image calculated from a frame that precedes the frame to be processed and is among the frames of the video image.2 ...

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Номер записи: 53
05-12-2013 дата публикации

IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD AND PROGRAM PRODUCT

Номер: US20130321663A1
Автор: Hira Shoko, Kihara Ken, OHTSUKA Sakuichi
Принадлежит:

There are provided: an original color image capturing unit capturing an original color image of a object represented by YCbCr; a Cr component elimination processing unit performing, on each pixel data of the original color image captured by the original color image capturing unit, processing to make a value of Cr component to be zero; a hue rotation processing unit performing, on each pixel data of the color image after being subjected to the processing performed by the Cr component elimination processing unit, hue rotation processing of 5 degrees to 50 degrees in a CbCr color space; and a display control unit performing a control to display the color image after being subjected to the hue rotation processing performed by the hue rotation processing unit, on a display section as a hue-converted color image. 1. An image processing device , comprising:a color image capturing unit capturing a color image of a object represented by a luminance signal, a first color difference signal of mainly yellow and blue, and a second color difference signal of mainly red and green;a second color difference signal elimination processing unit performing, on each pixel data of the color image, processing to make a value of the second color difference signal to be zero;a hue rotation processing unit performing, on each pixel data of the color image after being subjected to the processing performed by said second color difference signal elimination processing unit, hue rotation processing to eliminate a remaining red or green color component in a color space defined by the first color difference signal and the second color difference signal; anda display control unit performing a control to display the color image after being subjected to the hue rotation processing performed by said hue rotation processing unit, on a display section as a hue-converted color image.2. An image processing device , comprising:a color image capturing unit capturing a color image of a object represented by ...

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Номер записи: 54
12-12-2013 дата публикации

IMAGE PROCESSING APPARATUS THAT CORRECTS FOR CHROMATIC ABERRATION FOR TAKEN IMAGE, IMAGE PICKUP APPARATUS, METHOD OF CORRECTING FOR CHROMATIC ABERRATION OF MAGNIFICATION THEREFOR, AND STORAGE MEDIUM

Номер: US20130329097A1
Автор: Sugimori Masami
Принадлежит: CANON KABUSHIKI KAISHA

An image processing apparatus which is capable of accurately correcting for chromatic aberration of magnification in an area peripheral to a taken image using the taken image. Areas including edges in image data are extracted, and the amount of chromatic aberration of magnification is calculated as the amount of area chromatic aberration of magnification in each area with respect to each color component. Based on lens design values, chromatic aberration of magnification in each area is calculated as the amount of lens chromatic aberration of magnification. By using the amount of area chromatic aberration of magnification and the amount of lens chromatic aberration of magnification in adjacent areas next to an indefinite area matching predetermined conditions, the amount of lens chromatic aberration of magnification relating to the indefinite area is corrected to determine the amount of area chromatic aberration of magnification relating to the indefinite area. 1. An image processing apparatus that corrects for chromatic aberration of magnification for image data that is obtained through an image-forming optical system having an image pickup lens and has color signals of a plurality of colors , comprising:a correction data determination unit configured to determine an amount of chromatic aberration of magnification;wherein the correction data determination unit determines, at a first position on the image data at which conditions prescribed in advance are matched, a correction amount of the chromatic aberration of magnification by using an image data of an area including the first position, and determines, at a second position on the image data at which conditions prescribed in advance are not matched, the correction amount of the chromatic aberration of magnification by using an amount of a chromatic aberration of magnification obtained from lens design value data.2. An image processing apparatus according to claim 1 , wherein the first position is included in an ...

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Номер записи: 55
12-12-2013 дата публикации

Systems and Methods for Defective Pixel Correction with Neighboring Pixels

Номер: US20130329098A1
Автор: Lim Suk Hwan, Lin Sheng, Mills Christopher L.
Принадлежит: Apple Inc.

The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may detect and correct a defective pixel of image data acquired using an image sensor. The image processing pipeline may receive an input pixel of the image data acquired using the image sensor. The image processing pipeline may then identify a set of neighboring pixels having the same color component as the input pixel and remove two neighboring pixels from the set of neighboring pixels thereby generating a modified set of neighboring pixels. Here, the two neighboring pixels correspond to a maximum pixel value and a minimum pixel value of the set of neighboring pixels. The image processing pipeline may then determine a gradient for each neighboring pixel in the modified set of neighboring pixels and determine whether the input pixel includes a dynamic defect or a speckle based at least in part on the gradient for each neighboring pixel in the modified set of neighboring pixels. 1. An image signal processing system comprising: receiving an input pixel of image data acquired using an image sensor;', 'identifying a set of neighboring pixels having the same color component as the input pixel;', 'removing two neighboring pixels from the set of neighboring pixels thereby generating a modified set of neighboring pixels, wherein the two neighboring pixels correspond to a maximum pixel value and a minimum pixel value of the set of neighboring pixels;', 'determining a gradient for each neighboring pixel in the modified set of neighboring pixels; and', 'determining whether the input pixel comprises a dynamic defect or a speckle based at least in part on the gradient for each neighboring pixel in the modified set of neighboring pixels., 'an image processing pipeline configured to detect and correct a defective image pixel by2. The image signal processing system of claim 1 , wherein the image processing pipeline is configured to correct ...

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Номер записи: 56
12-12-2013 дата публикации

VIDEO SENDER AND VIDEO RECEIVER

Номер: US20130329138A1
Автор: Doi Takashi, MINEMURA Takashi, Miyasato Hideki, Suzuki Nobuaki
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to one embodiment, a video sender comprises: a video processor and a communication module. The video processor creates video. The communication module is configured to communicate with a video receiver. The communication module comprises: a receiver and a transmitter. The receiver receives, from the video receiver, specific information specifying which one of a color signal and a frame rate takes precedence over the other one in transmission. The transmitter converts the video created by the video processor into video in which one of the color signal and the frame rate takes precedence over the other one in accordance with the specific information, and transmit the video thus converted to the video receiver. 1. A video sender comprising:a video processor configured to create video; anda communication module configured to communicate with a video receiver, wherein a receiver configured to receive, from the video receiver, specific information specifying which one of a color signal and a frame rate takes precedence over the other one in transmission; and', 'a transmitter configured to convert the video created by the video processor into video in which one of the color signal and the frame rate takes precedence over the other one in accordance with the specific information, and transmit the video thus converted to the video receiver., 'the communication module comprises2. The video sender of claim 1 , wherein the receiver is configured to receive specific information specifying one of a “4:2:2 claim 1 , 30 Hz” mode claim 1 , a “4:2:0 claim 1 , 60 Hz” mode claim 1 , or a “4:4:4 claim 1 , 30 Hz” mode.3. The video sender of claim 1 , wherein the transmitter is configured to convert the video created by the video processor into video in which one of the color signal and the frame rate takes precedence over the other one in accordance with the specific information and content information representative of an attribute of the video created by the video processor ...

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Номер записи: 57
19-12-2013 дата публикации

Color imaging device

Номер: US20130335603A1
Автор: Kenkichi Hayashi, Seiji Tanaka, Tomoyuki Kawai
Принадлежит: Fujifilm Corp

A color filter array of a color imaging device is formed by repeatedly arranging a basic array pattern in which RGB filters are arrayed in an array pattern of 8×12 pixels, in a horizontal direction and a vertical direction. The basic array pattern is arranged in a matrix manner in the horizontal direction and/or the vertical direction and includes A array to D array having an array pattern of 4×4 pixels. In each of arrays, G filters are arranged in a checkered pattern and the arrangements of G filters have a mirror image relationship between arrays that are adjacent to each other.

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Номер записи: 58
26-12-2013 дата публикации

Tone Mapping For Low-Light Video Frame Enhancement

Номер: US20130342738A1
Автор: Vranceanu Ruxandra
Принадлежит: DigitalOptics Corporation Europe Limited

A technique is provided for generating sharp, well-exposed, color images from low-light images. A series of under-exposed images is acquired. A mean image is computed and a sum image is generated each based on the series of under-exposed images. Chrominance variables of pixels of the mean image are mapped to chrominance variables of pixels of the sum image. Chrominance values of pixels within the series of under-exposed images are replaced with chrominance values of the sum image. A set of sharp, well-exposed, color images is generated based on the series of under-exposed images with replaced chrominance values. 1. An image processing method comprising;obtaining a first underexposed and sharp image of a scene;obtaining a second image relatively well exposed and blurred compared to said first image, nominally of the same scene, wherein said second image is acquired at a different exposure time than said first image; provide a portion of said first image as an input signal to an adaptive filter;', 'provide a corresponding portion of said second image as a desired signal to said adaptive filter; and', 'calculate filter coefficients for said portion of said images at a given scanning location based on a combination of said input signal, said desired signal and existing filter coefficients for said scanning location; and', 'adaptively filter said input signal based on said filter coefficients to produce an output signal and constructing a first filtered image from said output signal, less blurred than said second image., 'scanning across said first and second images to2. An image processing method according to claim 1 , wherein said first and second images being in RGB format and wherein said image portions comprise a respective color plane of said first and second images and further comprising constructing each color plane of said first filtered image from a combination of said filter coefficients and said input signal color plane information.3. An image processing ...

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Номер записи: 59
02-01-2014 дата публикации

Method and Apparatus for Image Data Transformation

Номер: US20140002478A1
Автор: Anders Ballestad, Andrey Kostin, Gregory John Ward
Принадлежит: Dolby Laboratories Licensing Corp

Image data is transformed for display on a target display. A sigmoidal transfer function provides a free parameter controlling min-tone contrast. The transfer function may be dynamically adjusted to accommodate changing ambient lighting conditions. The transformation may be selected so as to automatically adapt image data for display on a target display in a way that substantially preserves creative intent embodied in the image data. The image data may be video data.

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Номер записи: 60
02-01-2014 дата публикации

APPARATUS AND METHOD OF REDUCING NOISE OF IMAGE

Номер: US20140002697A1
Автор: Cho Jung Uk, Lee Shi Hwa, Moon Young Su, Tai Yong Min
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is an apparatus and method for reducing noise in an image, the apparatus including a reference image creator unit to create a reference image based on chrominance about a plurality of channels included in an output image obtained from an image sensor of a camera, and a noise reduction unit to perform noise reduction for the respective channels using the created reference image. The plurality of channels may include at least one of a green channel, a red channel, and a blue channel. 1. A noise reduction apparatus of an image signal processor , the apparatus comprising:a processor to control one or more processor-executable units;a reference image creator unit to create a reference image based on chrominance about a plurality of channels included in an output image obtained from an image sensor of a camera; anda noise reduction unit to perform noise reduction for each channel of the plurality of channels using the created reference image,wherein the plurality of channels comprises at least one of a green channel, a red channel, and a blue channel.2. The apparatus of claim 1 , wherein the reference image creator unit performs noise reduction with respect to the green channel claim 1 , and creates the reference image using the noise reduced green channel claim 1 , the red channel claim 1 , and the blue channel.3. The apparatus of claim 2 , wherein the reference image creator unit performs multi-resolution noise reduction by performing bilateral filtering for respective pyramid levels of the green channel using a Laplacian pyramid claim 2 , and creates the reference image using the noise reduced green channel.4. The apparatus of claim 1 , wherein the reference image creator unit generates a pixel value of a red pixel position corresponding to the red channel by applying chrominance of the red pixel position corresponding to the red channel and by interpolating the green channel and the blue channel claim 1 , and creates the reference image using the generated ...

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Номер записи: 61
02-01-2014 дата публикации

SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, PROGRAM, SOLID-STATE IMAGE SENSOR, AND ELECTRONIC APPARATUS

Номер: US20140002698A1
Автор: SHOYAMA HIDEKI
Принадлежит:

There is provided a signal processing device including a correction processing unit that acquires a pixel signal output from a sensor on which pixels are disposed in an array in which a spatial frequency of a color pixel which is a pixel acquiring a color component is lower than a spatial frequency of luminance pixels which are pixels acquiring luminance components, and then corrects the pixel signal output from a defective pixel out of the pixels that the sensor includes. During correction of a pixel signal of the color pixel, the correction processing unit performs correction referring to pixel signals of the luminance pixels having a spatial frequency higher than the spatial frequency of the color pixel. 1. A signal processing device comprising:a correction processing unit that acquires a pixel signal output from a sensor on which pixels are disposed in an array in which a spatial frequency of a color pixel which is a pixel acquiring a color component is lower than a spatial frequency of luminance pixels which are pixels acquiring luminance components, and then corrects the pixel signal output from a defective pixel out of the pixels that the sensor includes,wherein, during correction of a pixel signal of the color pixel, the correction processing unit performs correction referring to pixel signals of the luminance pixels having a spatial frequency higher than the spatial frequency of the color pixel.2. The signal processing device according to claim 1 , wherein the correction processing unit includes a correction reference decision unit that decides a maximum value of the pixel signals of the luminance pixels that are located a one-pixel pitch away from the color pixel to be processed and of pixel signals of a pair of nearest same-color pixels which are color pixels having a same color that is located nearest to the color pixel to be processed among pixel signals of pixels within a predetermined range from the color pixel to be processed as a correction ...

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Номер записи: 62
02-01-2014 дата публикации

Liquid crystal display apparatus and liquid crystal television

Номер: US20140002734A1
Автор: Hironori Shimoda, Mihoko Watanabe
Принадлежит: Sharp Corp

There is provided with a color mixing section for mixing yellow to red or green, when red or green is displayed by a liquid crystal television including a liquid crystal panel that has a color filter for four primary colors for red, green, blue and yellow, a backlight that emits light to the liquid crystal panel, and a television signal processing section that converts an inputted color video image signal into signals representing red, green, blue and yellow regarding a color video image.

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Номер записи: 63
02-01-2014 дата публикации

Generating Alternative Versions of Image Content Using Histograms

Номер: US20140002737A1
Автор: Ballestad Anders, Damberg Gerwin
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

One or more versions of video or other image content may be generated by obtaining first histogram data for a first version of the video content; obtaining a second version of the video content; obtaining second histogram data for the second version of the video content; generating a mapping from the second version of the video content to an additional version of the video content by performing a number of iterations of a progressive histogram matching algorithm, the number of iterations being fewer than a maximum number of iterations of the progressive histogram matching algorithm; and applying the mapping to generate the additional version of the video content from the second version of the video content. 111-. (canceled)12. A method for generating additional versions of video content , the method comprising:obtaining first histogram data for a first version of the video content viewable on a first display;obtaining a second version of the video content viewable on a second display; wherein the first and second displays have different display capabilities;obtaining second histogram data for the second version of the video content;generating a mapping from the second version of the video content to an additional version of the video content by performing a number of iterations of a progressive histogram matching algorithm, the number of iterations being fewer than a maximum number of iterations of the progressive histogram matching algorithm; wherein the number of iterations is determined based upon a signal from an ambient light sensor; wherein generating a mapping comprises determining a histogram transformation which morphs the second histogram data to become more like the first histogram data; andapplying the mapping to generate the additional version of the video content from the second version of the video content; wherein the additional version is a recreation of the first version.131. A method according to claim comprising generating mappings corresponding ...

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Номер записи: 64
09-01-2014 дата публикации

Signal processing apparatus and method, and program

Номер: US20140009637A1
Автор: Hideo Morita, Hiroshi Takizuka, Hiroshi Yamashita, Junichi Iwai, Kazuji Uemura, Ko Ishimoto, Koichi Oura, Koichiro Kakinuma, Naoya Katoh, Shigeo Kubota, Shuichi Haga, Takehiro Nakatsue, Tatsuhiko Matsumoto, Yoshihiro Kosugi, Yoshiki Shirochi
Принадлежит: Sony Corp

Signals are provided which allow colors in a wider color range than predetermined standards, which can be handled by apparatus according to such predetermined standards. A primary color converter converts first color signals having primary color points in a wider color range than the primary color points according to BT.709 into second color signals based on the primary colors according to BT.709. A photoelectric transducer converts the second color signals into third color signals according to photoelectric transducer characteristics defined in a numerical range wider than a range from 0 to 1.0 of color signals corresponding to a luminance signal and color difference signals according to BT.709. A color signal converter converts the third color signals into a luminance signal and color difference signals. A corrector incorporated in the color signal converter corrects the color difference signals into color difference signals.

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Номер записи: 65
23-01-2014 дата публикации

SIGNAL PROCESSING DEVICE AND METHOD

Номер: US20140022384A1
Автор: Tomiyama Hitoshi
Принадлежит:

There is provided a signal processing device including a signal generation unit that generates a control signal for controlling an imaging device connected via one cable, a signal superimposition unit that superimposes the control signal generated by the signal generation unit on a video signal received from the imaging device via the cable without an influence on display of a video corresponding to the video signal, and a transmission unit that transmits the signals superimposed by the signal superimposition unit to the imaging device via the cable. 1. A signal processing device comprising:a signal generation unit that generates a control signal for controlling an imaging device connected via one cable;a signal superimposition unit that superimposes the control signal generated by the signal generation unit on a video signal received from the imaging device via the cable without an influence on display of a video corresponding to the video signal; anda transmission unit that transmits the signals superimposed by the signal superimposition unit to the imaging device via the cable.2. The signal processing device according to claim 1 , wherein the signal generation unit generates a control signal for controlling at least one of pan claim 1 , tilt claim 1 , and zoom of the imaging device.3. The signal processing device according to claim 2 , wherein the signal superimposition unit superimposes the control signal in a horizontal synchronization signal section of the video signal.4. The signal processing device according to claim 2 ,wherein the signal generation unit generates the control signal at a frequency other than a reference frequency of a color difference signal, andwherein the signal superimposition unit superimposes the control signal generated by the signal generation unit on a color burst section of the video signal.5. The signal processing device according to claim 2 ,wherein the signal generation unit generates the control signal at a level lower than a ...

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Номер записи: 66
23-01-2014 дата публикации

Image Processing Device, Imaging Device, Image Processing Method, Imaging Method, and Image Processing Program for Pseudo-Color Supression in an Image

Номер: US20140022421A1
Автор: Sawada Yasuhiro
Принадлежит: Silicon Hive B.V.

An image processing device comprising 122-. (canceled)23. An apparatus , comprising: determine first and second color differences based on at least a portion of the color mosaic image, wherein to determine the first color difference the image processing circuitry to subtract a combined sum of red pixel luminance values and of blue pixel luminance values of the portion from a sum of green pixel luminance values of the portion, wherein to determine the second color difference the image processing circuitry to determine a difference between a sum of red pixel luminance values and a sum of blue pixel luminance values of the portion;', 'suppress pseudo-color in at least one of the first color difference or the second color difference to generate at least one of a pseudo-color suppressed first color difference or a pseudo-color suppressed second color difference; and', 'perform color space conversion of at least one of the pseudo-color suppressed first color difference or the pseudo-color suppressed second color difference., 'image processing circuitry to generate a color image from a color mosaic image, the color mosaic image comprising an array of red pixel, blue pixel, and green pixel luminance values, wherein to generate the color image the image processing circuitry to24. The apparatus of claim 23 , wherein to suppress pseudo-color claim 23 , the image processing circuitry to generate at least a one parameter corresponding to a high frequency luminance component in at least one of a first direction or a second direction different than the first direction.25. The apparatus of claim 24 , wherein the portion of the color mosaic image includes a red pixel claim 24 , a blue pixel claim 24 , a green-red pixel corresponding to a green pixel located adjacent to the red pixel in the first direction of the pixel array claim 24 , and a green-blue pixel corresponding to a green pixel located adjacent to the blue pixel in the second direction claim 24 , wherein to generate the ...

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Номер записи: 67
23-01-2014 дата публикации

Quality Assessment for Images that Have Extended Dynamic Ranges or Wide Color Gamuts

Номер: US20140022460A1
Автор: Walter Gish, ZHEN Li
Принадлежит: Dolby Laboratories Licensing Corp

A first video signal is accessed, and represented in a first color space with a first color gamut, related to a first dynamic range. A second video signal is accessed, and represented in a second color space of a second color gamut, related to a second dynamic range. The first accessed video signal is converted to a video signal represented in the second color space. At least two color-related components of the converted video signal are mapped over the second dynamic range. The mapped video signal and the second accessed video signal are processed. Based on the processing, a difference is measured between the processed first and second video signals. A visual quality characteristic relates to a magnitude of the measured difference between the processed first and second video signals. The visual quality characteristic is assessed based, at least in part, on the measurement of the difference.

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Номер записи: 68
30-01-2014 дата публикации

IMAGE PROCESSING METHOD, STORAGE MEDIUM, IMAGE PROCESSING APPARATUS AND IMAGE PICKUP APPARATUS

Номер: US20140028839A1
Автор: ISHIBASHI Tomohiko
Принадлежит: CANON KABUSHIKI KAISHA

The image processing method includes acquiring an input image produced by image capturing through an image capturing optical system tilted with respect to an image pickup plane, acquiring tilt information showing a condition of the tilt of the image capturing optical system in the image capturing, and performing an image process on the input image, by using information on aberration of the image capturing optical system corresponding to the tilt information, to correct image degradation caused by the aberration. The tilt information shows a tilt direction and a tilt angle of the image capturing optical system with respect to the image pickup plane. The method acquires object distances for respective image heights in the image pickup plane by using the tilt direction and the tilt angle and performs the image process corresponding to the object distance for each image height. 1. An image processing method comprising:acquiring an input image produced by image capturing through an image capturing optical system tilted with respect to an image pickup plane;acquiring tilt information showing a condition of the tilt of the image capturing optical system in the image capturing; andperforming an image process on the input image, by using information on aberration of the image capturing optical system corresponding to the tilt information, to correct image degradation caused by the aberration,wherein the tilt information shows a tilt direction and a tilt angle of the image capturing optical system with respect to the image pickup plane, andwherein the method acquires object distances for respective image heights in the image pickup plane by using the tilt direction and the tilt angle and performs the image process corresponding to the object distance for each image height.2. An image processing method according to claim 1 , wherein the method performs claim 1 , as the image process claim 1 , an image restoration process based on an optical transfer function of the image ...

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Номер записи: 69
30-01-2014 дата публикации

IMAGE CAPTURING APPARATUS, CONTROL METHOD THEREFOR, AND NON-TRANSITORY COMPUTER READABLE STORAGE MEDIUM

Номер: US20140028871A1
Автор: Tsuda Yuji
Принадлежит:

An image capturing apparatus for capturing an object and generate an image, displaying the image, performing signal processing for the image, and accepting an input from a user, wherein the image is displayed with a vectorscope superimposed thereon, the vectorscope indicating a distribution of color components included in the image based on a hue and a color density and an index for specifying a range of a skin color region in the image, a display position of the index on the vectorscope is specified based on the hue and the color density values, and a size of the index is specified by the range of the skin color region value, and processing is performed for decreasing a detail level of an image signal of the image having a color component included in the index. 1. An image capturing apparatus comprising:an image capturing unit configured to capture an object and generate an image;a display unit configured to display the image;a signal processing unit configured to perform signal processing for the image; andan operation unit configured to accept an input from a user,wherein said display unit displays the image with a vectorscope superimposed thereon, the vectorscope indicating a distribution of color components included in the image based on a hue and a color density and an index for specifying a range of a skin color region in the image,a display position of the index on the vectorscope is specified by a value representing the hue and a value representing the color density, and a size of the index is specified by a value representing the range of the skin color region,the value representing the hue, the value representing the color density, and the value representing the range of the skin color region are set based on the input from the user through said operation unit, andsaid signal processing unit performs processing of decreasing a detail level of an image signal of the image having a color component included in the index.2. The apparatus according to claim 1 ...

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Номер записи: 70
06-02-2014 дата публикации

Method of Improving Orientation and Color Balance of Digital Images Using Face Detection Information

Номер: US20140036109A1
Автор: Bigioi Petronel, Corcoran Peter, Prilutsky Yury, Steinberg Eran
Принадлежит: DigitalOptics Corporation Europe Limited

A method of generating one or more new spatial and chromatic variation digital images uses an original digitally-acquired image which including a face or portions of a face. A group of pixels that correspond to a face within the original digitally-acquired image is identified. A portion of the original image is selected to include the group of pixels. Values of pixels of one or more new images based on the selected portion are automatically generated, or an option to generate them is provided, in a manner which always includes the face within the one or more new images. Such method may be implemented to automatically establish the correct orientation and color balance of an image. Such method can be implemented as an automated method or a semi automatic method to guide users in viewing, capturing or printing of images. 1. A method of digital image processing using face detection for achieving desired chromatic parameters for a face , comprising using a digital image acquisition device or external image processing device , or a combination thereof , that includes a processor that is programmed to perform the method , wherein the method comprises:identifying a group of pixels that correspond to a face within a digital image;identifying one or more sub-groups of pixels that correspond to one or more facial features of the face including at least one sub-group of pixels that substantially comprise one or more skin tones;determining initial chrominance values of one or more chromatic parameters of pixels of the one or more sub-groups of pixels including said at least one sub-group of pixels that substantially comprise one or more skin tones;determining at least one initial chromatic parameter based on the initial chrominance values; anddetermining adjusted values of the one or more chromatic parameters of the pixels of the one or more sub-groups of pixels, including said at least one sub-group of pixels that substantially comprise one or more skin tones, based on a ...

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Номер записи: 71
06-02-2014 дата публикации

Selecting color spaces for cinema or video data

Номер: US20140040743A1
Автор: Peter Constable, Vladimir Potap`yev
Принадлежит: Adobe Systems Inc

A computer-implemented method includes presenting one or more user interface controls configured to receive selection of a first color space, from a plurality of first color spaces corresponding to media encodings for recording cinema or video data, and a second color space, from a plurality of second color spaces corresponding to output devices, receiving the selection, combining a first transform corresponding to the first color space and a second transform corresponding to the second color space, in accordance with the selection, to form a combined transform, and providing the combined transform for use in previewing the cinema or video data in accordance with the output devices corresponding to the selection.

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Номер записи: 72
20-02-2014 дата публикации

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

Номер: US20140049669A1
Автор: Hirai Shinya
Принадлежит: CANON KABUSHIKI KAISHA

A band processing circuit which generates image signals corresponding to different frequency bands from an image signal in which signals corresponding to different colors are arranged and which suppresses noise by synthesizing the image signals of the different frequency bands, a sampling circuit which generates image signal corresponding to the colors by sampling the image signal input from the band processing circuit in accordance with a predetermined arrangement, and a luminance/color generation circuit which generates a luminance signal in which aliasing is suppressed using an image signal output from the sampling circuit. 1. (canceled)2. An apparatus configured to generate image data including luminance signal and color difference signals from image data which color signal corresponding to a plurality of colors is arranged , the apparatus comprising:a compensation unit configured to perform compensation process to the image data which color signal corresponding to the plurality of colors is arranged, for comprising a plurality of color signals which each pixel corresponds to the plurality of colors;a sampling unit configured to generate an image data which that is sampled so that the color signal corresponding to the plurality of colors is arranged, using the image data which the compensation process is performed; anda luminance signal generation unit configured to generate luminance signal from the sampled image data.3. The apparatus according to claim 2 , further comprising;a noise suppressing unit configured to perform noise suppressing process to image data which the compensation process is performed,wherein the sampling unit generates the sampled image data using the image data which the noise suppressing process is performed.4. The apparatus according to claim 2 , wherein the compensation unit uses the color signal corresponding to the first color that the pixel which is located around the focus pixel comprises for compensating the color signal ...

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Номер записи: 73
27-02-2014 дата публикации

IMAGE PROCESSING APPARATUS AND METHOD

Номер: US20140055645A1
Автор: Ishii Toshiyuki
Принадлежит:

First image data obtained by capturing an image of a subject under a first light condition, and second image data obtained by capturing an image of the subject under a second light condition different from the first light condition are input. The sampling positions of colors used to generate correction parameters are acquired. First color signal values are sampled from the sampling positions in the first image data, and second color signal values are sampled from the sampling positions in the second image data. Correction parameters used to correct the first image data which depends on the first light condition into image data which depends on the second light condition are generated based on the first and second color signal values. 1. An image processing apparatus comprising:an input unit configured to input first image data obtained by capturing an image of a subject under a first light condition, and second image data obtained by capturing an image of the subject under a second light condition different from the first light condition;an acquisition unit configured to acquire sampling positions of colors used to generate correction parameters;a sampling unit configured to sample first color signal values from the sampling positions in the first image data, and to sample second color signal values from the sampling positions in the second image data; anda generation unit configured to generate correction parameters, used to correct the first image data which depends on the first light condition into image data which depends on the second light condition, based on the first color signal values and the second color signal values,wherein at least one of the input unit, the acquisition unit, the sampling unit, or the generation unit is implemented at least in part by hardware components of the image processing apparatus.2. The apparatus according to claim 1 , wherein the generation unit comprises:a first generator configured to generate color correction parameters ...

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Номер записи: 74
27-02-2014 дата публикации

SOLID-STATE IMAGE SENSOR

Номер: US20140055650A1
Автор: Fujii Toshiya, Hiramoto Masao, Monobe Yusuke, Nakamura Tatsuya, Nishiwaki Seiji
Принадлежит: Panasonic Corporation

This solid-state image sensor includes an array of photosensitive cells and an array of dispersive elements. The photosensitive cell array is comprised of a plurality of unit blocks , each including four photosensitive cells and . A condensing element is further arranged to cover the photosensitive cells and and condenses incoming light onto the photosensitive cells and 1. A solid-state image sensor comprising:a photosensitive cell array in which a plurality of unit blocks, each including first, second, third and fourth photosensitive cells that are arranged in two rows and two columns, are arranged two-dimensionally on an imaging area, wherein in each said unit block, the first, second, third and fourth photosensitive cells are arranged at row 1, column 1 position, row 2, column 1 position, row 1, column 2 position, and row 2, column 2 position, respectively;a dispersive element array including a first dispersive element and a second dispersive element which has a different light-dispersing property from the first dispersive element, the first dispersive element being arranged to face at least partially at least one of the first and third photosensitive cells and to split incoming light according to its wavelength in a direction in which the first and third photosensitive cells are arranged, the second dispersive element being arranged to face at least partially at least one of the second and fourth photosensitive cells and to split incoming light according to its wavelength in a direction in which the second and fourth photosensitive cells are arranged; anda plurality of condensing elements, each of which is arranged in an area that covers the first and third photosensitive cells and which is configured to condense light onto the first and third photosensitive cells.2. The solid-state image sensor of claim 1 , wherein the first dispersive element is arranged to face the first or third photosensitive cell and to make light rays falling within mutually different ...

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Номер записи: 75
06-03-2014 дата публикации

IMAGE TRANSMISSION DEVICE AND IMAGING DISPLAY SYSTEM

Номер: US20140063284A1
Автор: Yanagidate Masaharu
Принадлежит: OLYMPUS CORPORATION

An image transmission device is an image transmission device in an imaging display system in which an imaging device which images a subject and outputs frame image data, the image transmission device which wirelessly transmits the frame image data, an image reception device which wirelessly receives the wirelessly transmitted frame image data, and a display device which displays an image thereon based on the frame image data wirelessly received by the image reception device are included. The image transmission device includes an input unit, an image processing unit, a communication unit, and an adjustment unit. 1. An image transmission device in an imaging display system which includes an imaging device which images a subject and outputs frame image data , an image transmission device which wirelessly transmits the frame image data , an image reception device which wirelessly receives the wirelessly transmitted frame image data , and a display device which displays an image thereon based on the frame image data wirelessly received by the image reception device , the image transmission device comprising:an input unit to which an imaging characteristic parameter of the imaging device and the frame image data are input;an image processing unit which performs image processing on the frame image data input to the input unit based on a processing parameter;a communication unit which wirelessly transmits the frame image data of an image that has been processed by the image processing unit to the image reception device, and wirelessly receives an index parameter, which is used as an index value when the processing parameter is adjusted, so as to reduce a difference in image quality caused by imaging characteristics of each imaging device; andan adjustment unit which adjusts the processing parameter based on the imaging characteristic parameter and the index parameter.2. The image transmission device in an imaging display system according to claim 1 , which includes a first ...

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Номер записи: 76
06-03-2014 дата публикации

Myopia-Safe Video Displays

Номер: US20140063347A1
Автор: Kuchenbecker James, Neitz Jay, Neitz Maureen
Принадлежит: University of Washington through its Center for Commercialization

In a first aspect, the present invention provides methods for creating video signals including (a) receiving an input video signal including an input red component, an input green component, and an input blue component; (b) determining (i) that a magnitude of the input red component is greater than a magnitude of the input green component and (ii) a differential between the magnitude of the input red component and the magnitude of the input green component; and (c) sending an output video signal including an output red component, an output green component, and an output blue component, where at least one of the following is true: (i) the output red component is decreased by a fractional amount relative to the input red component based on the differential; and/or (ii) the output green component is increased by a fractional amount relative to the input green component based on the differential, and the output blue component is increased by a fractional amount relative to the input blue component based on the differential. 1. A method for creating video signals comprising:(a) receiving an input video signal comprising an input red component, an input green component, and an input blue component;(b) determining (i) that a magnitude of the input red component is greater than a magnitude of the input green component and (ii) a differential between the magnitude of the input red component and the magnitude of the input green component; and(c) sending an output video signal comprising an output red component, an output green component, and an output blue component, the output red component is decreased by a fractional amount relative to the input red component based on the differential; and/or', '(ii) the output green component is increased by a fractional amount relative to the input green component based on the differential, and the output blue component is increased by a fractional amount relative to the input blue component based on the differential., 'wherein at least ...

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Номер записи: 77
20-03-2014 дата публикации

IMAGE PROCESSOR, IMAGE PROCESSING METHOD, AND DIGITAL CAMERA

Номер: US20140078338A1
Автор: HATANO Toshinobu
Принадлежит: Panasonic Corporation

An image processor includes: a reduction (resizing) processor that reduces an original image obtained from a single-sensor color imaging device to an image conforming to a display size of a display monitor; and a rearranged color array display data generation processor that generates one or more types of color array images conforming to a color pixel array of the display monitor, based on the reduced image. With this configuration, one or more types of display reduced-size image having color information of the original image are generated. Thus, a small-size image for display generated from a large-size original image output from an imaging device can be displayed at high speed with a minimum frame delay. 1. An image processor capable of generating a reduced-size image from a digital image signal of an original image having pixels of a plurality of colors arranged in a color array with a periodicity , and of displaying the reduced-size image , the image processor comprising:a reduction resizing processor configured to reduce an original image from a single-sensor color imaging device and obtain a reduced-size image of a size conforming to a display size of a display monitor; anda rearranged color array data generation processor configured to generate, based on the reduced-size image obtained by the reduction resizing processor, one or more types of display reduced-size images that are to be displayed from two-dimensionally arranged multicolor array data obtained by rearranging color information of the original image relative to a reference pixel position.2. The image processor of claim 1 , further comprisinga rearranged color array display data generation processor configured to generate one or more types of color array display data conforming to a color pixel array for the display monitor, based on the display reduced-size image generated by the rearranged color array data generation processor.3. The image processor of claim 1 , further comprising:a data path ...

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Номер записи: 78
20-03-2014 дата публикации

COLOR GAMUT SCALABILITY TECHNIQUES

Номер: US20140079134A1
Автор: Chiu Yi-Jen, Jiang Hong, PENG YA-TI, Xu Lidong
Принадлежит:

Techniques are described that can be used to either compress or expand video. Color compression techniques are described that can be used to compress the wide color gamut content into lower color gamut for inclusion in a baseline layer. Color expansion techniques are described that convert lower color gamut data into wider color gamut format for inclusion in an enhancement layer. Both of the baseline video stream and enhancement layer video streams may be transmitted through a channel or stored in a memory device to be viewed later. Accordingly, both baseline and enhancement video layers are available so that either lower or higher quality displays can be used to display video. 1. A method comprising: [ performing color space conversion from YCbCr to RGB,', 'performing inverse opto-electronic transfer,', 'performing color space conversion from RGB to XYZ, and', 'performing color triangle transformation via translation,, 'applying color compression comprising, 'rotation, and scaling, and, 'transforming video from a first color gamut to a second color gamut, wherein the first color gamut comprises a wide color gamut and the second color gamut is lower color gamut than the first color gamut, wherein the transforming video comprisesapplying baseline layer video encoding to form baseline video based at least in part on the color compressed video; andproviding an enhancement layer version of video based at least in part on the wide color gamut video.2. The method of claim 1 , wherein the enhancement layer includes video of higher bit depth and the baseline layer includes video of lower bit depth.3. The method of claim 1 , wherein the applying color compression further comprises:performing color space conversion based on RGB, hue, saturation, lightness, brightness, and intensity.4. The method of claim 1 , further comprising:applying color expansion to convert the video of lower color gamut into wide color gamut andusing an enhancement layer video encoding to form the ...

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Номер записи: 79
27-03-2014 дата публикации

Imaging device, control method for imaging device, and storage medium storing a control program for imaging device

Номер: US20140085504A1
Автор: Kenkichi Hayashi
Принадлежит: Fujifilm Corp

A deterioration in image quality caused by correction can be prevented in comparison to when consideration is not given to the sequence in which correction is performed on an image captured by an image pickup device. An imaging apparatus 10 is configured including an optical system 12, an image pickup device 14, an image capture correction processing section 16, and an image processing section 18. The image capture correction processing section 16 is configured including a color mixing correction section 20, a noise correction section 22, an offset correction section 24 and a gain correction section 26. The color mixing correction section 20 reads image data from the image pickup device 14 and performs color mixing correction processing thereon. The noise correction section 22 performs noise correction processing on the image data on which the color mixing correction section 20 has performed color mixing correction processing.

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Номер записи: 80
01-01-2015 дата публикации

VIDEO DISPLAY DEVICE AND TELEVISION RECEIVING DEVICE

Номер: US20150002559A1
Автор: Fujine Toshiyuki, Shiraya Yoji
Принадлежит: SHARP KABUSHIKI KAISHA

The objective of the present invention is, by detecting a portion of a video signal that is light emission, enhancing the display luminance of the light emission portion and displaying the same, to increase a sense of brightness for the same so as to perform video image expression with high contrast. A light emission detecting portion uses a predetermined feature quantity related to brightness of an input video image signal in order to pre-define the amount of emitted light of the video image signal according to the relationship with a feature quantity so as to detect the amount of emitted light on the basis of the feature quantity for each frame of the input video image signal. A black detection portion, from the input video image signal, detects the amount of black to display on the basis of a predetermined condition. A backlight luminance stretch portion performs stretching of the light source luminance of the backlight in accordance with the amount of emitted light that has been detected, wherein the luminance stretch amount for the backlight is limited on the basis of the amount of black to display that has been detected by the black detection portion. 115.-. (canceled)16. A video display device comprising:a display portion for displaying an input video signal;a light source for illuminating the display portion; anda control portion for controlling the display portion and the light source, wherein the control portion determines an amount of stretching of luminance of the light source based on a given feature quantity related to brightness of the input video signal and stretches luminance of the light source based on the amount of stretching of luminance,the video display device further comprises a black detection portion that detects an amount of black display from the input video signal based on a given condition, andwhen an amount of black display detected by the black detection portion is within a given range, the control portion limits an amount of ...

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Номер записи: 81
06-01-2022 дата публикации

AUTOMATIC DETECTION OF A CALIBRATION OBJECT FOR MODIFYING IMAGE PARAMETERS

Номер: US20220005224A1
Автор: Hillman Peter
Принадлежит: Weta Digital Limited

Embodiments provide for automated detection of a calibration object within a recorded image. In some embodiments, a system receives an original image from a camera, wherein the original image includes at least a portion of a calibration chart. The system further derives a working image from the original image. The system further determines regions in the working image, wherein each region comprises a group of pixels having values within a predetermined criterion. The system further analyzes two or more of the regions to identify a candidate calibration chart in the working image. The system further identifies at least one region within the candidate calibration chart as a patch. The system further predicts a location of one or more additional patches based on at least the identified patch. 1. A computer-implemented method performed by one or more digital processors for identifying image calibration data , the method comprising:receiving an original image from a camera, wherein the original image includes at least a portion of a calibration chart;deriving a working image from the original image;determining regions in the working image, wherein each region comprises a group of pixels having values within a predetermined criterion;analyzing two or more of the regions to identify a candidate calibration chart in the working image;identifying at least one region within the candidate calibration chart as a patch; andpredicting a location of one or more additional patches based on at least the identified patch.2. The method of claim 1 , further comprising filtering at least one portion of the regions based on shape.3. The method of claim 1 , wherein the determining of regions includes checking a size of a region.4. The method of claim 1 , further comprising adjusting an orientation of the candidate calibration chart.5. The method of claim 1 , further comprising computing image data based on at least one pixel value from the identified patch.6. The method of claim 1 , ...

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Номер записи: 82
05-01-2017 дата публикации

IMAGE PROCESSING DEVICE, IMAGING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM

Номер: US20170004606A1
Автор: HAYASHI Kenkichi, NARUSE Yousuke, SUGIMOTO Masahiko
Принадлежит: FUJIFILM Corporation

Disclosed are an image processing device, an imaging device, an image processing method, and an image processing program capable of, when recovering a deteriorated image due to a point spread function of an optical system, effectively performing phase recovery and suppressing the occurrence of artifact due to frequency recovery processing. The image processing device includes a phase recovery processing unit which subjects image data acquired from an imaging element by capturing an object image using an optical system to phase recovery processing using a phase recovery filter based on a point spread function of the optical system, a gradation correction processing unit which subjects image data subjected to the phase recovery processing to nonlinear gradation correction, and a frequency recovery processing unit which subjects image data subjected to the gradation correction to frequency recovery processing using a frequency recovery filter based on the point spread function of the optical system. 1. An image processing device comprising:a phase recovery processing unit which subjects image data acquired from an imaging element by capturing an object image using an optical system to phase recovery processing using a phase recovery filter based on a point spread function of the optical system;a gradation correction processing unit which subjects image data subjected to the phase recovery processing to nonlinear gradation correction; anda frequency recovery processing unit which subjects image data subjected to the gradation correction to frequency recovery processing using a frequency recovery filter based on the point spread function of the optical system.2. The image processing device according to claim 1 , further comprising:a storage unit which stores the phase recovery filter and the frequency recovery filter,wherein the phase recovery processing unit reads the phase recovery filter from the storage unit and uses the phase recovery filter in the phase recovery ...

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Номер записи: 83
04-01-2018 дата публикации

SIMPLE BUT VERSATILE DYNAMIC RANGE CODING

Номер: US20180005356A1
Автор: Mertens Mark Jozef Willem, STESSEN Jeroen Hubert Christoffel Jacobus, VAN DER VLEUTEN Renatus Josephus
Принадлежит:

For obtaining an good yet easy to use luminance dynamic range conversion, we describe an image color processing apparatus () arranged to transform an input color (R,G,B) of a pixel of an input image (Im_in) having a first luminance dynamic range into an output color (Rs, Gs, Bs) of a pixel of an output image (Im_res) having a second luminance dynamic range, which first and second dynamic ranges differ in extent by at least a multiplicative factor 2, comprising: a maximum determining unit () arranged to calculate a maximum (M) of color components of the input color, the color components at least comprising a red, green and blue component; —a uniformization unit () arranged to apply a function (FP) to the maximum (M) as input, which function has a logarithmic shape and was predetermined to be of a fixed shape enabling to transform a linear input to a more perceptually uniform output variable (u); a function application unit () arranged to receive a functional shape of a function, which was specified previously by a human color grader, and apply the function to the uniform output variable (u), yielding a transformed uniform value (TU); a linearization unit () arranged to transform the transformed uniform value (TU) to a linear domain value (LU); a multiplication factor determination unit () arranged to determine a multiplication factor (a) being equal to the linear domain value (LU) divided by the maximum (M); and a multiplier () arranged to multiply at least three linear color components (R,G,B) by the multiplication factor (a), yielding the output color. 1. An image color processing apparatus arranged to transform an input color having a linear red , green and blue color component representation of a pixel of an input image , which input image has a first luminance dynamic range , into a linear red , green and blue color component output color of a pixel of an output image , which output image has a second luminance dynamic range , whereby the peak luminance of the ...

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Номер записи: 84
04-01-2018 дата публикации

A METHOD AND APPARATUS FOR INVERSE-TONE MAPPING A PICTURE

Номер: US20180005358A1
Автор: LASSERRE SEBASTIEN, LELEANNEC Fabrice, LEMERLE Stephane
Принадлежит:

The present disclosure generally relates to a method and device for inverse-tone mapping a picture. The method comprising: —obtaining () a first component (Y) comprising: —obtaining a luminance component (L) from said color picture; —obtaining a resulting component by applying (), a non-linear function on said luminance component (L) in order that the dynamic of the resulting component is increased compared to the dynamic of the luminance component (L)—obtaining () a modulation value (Ba) from the luminance of said color picture; —obtaining the first component (Y) by multiplying said resulting component by said modulation value (Ba); —obtaining two chrominance components (C1, C2) from said color picture; —obtaining () a first factor (r(L(i))) that depends on the value (L(i)) of a pixel (i) of said luminance component (L); —obtaining () at least one color component (Ec) from said first component (Y), said two chrominance components (C1, C2) and said first factor (r(L(i))); and—forming the inverse-tone mapped color picture by combining together said at least one color component (Ec). 122-. (canceled)24. The method of claim 23 , wherein the non-linear function is the inverse of either a gamma curve or a Slog curve according to value of said luminance component (Y).25. The method of claim 23 , wherein the method further comprises obtaining at least one of the following values from either a local or remote memory and/or from a bitstream:the modulation value (Ba);parameters of the non-linear function;an information data (Inf) that indicates whether either the non-linear function is a gamma correction or a Slog correction.26. The method of claim 23 , wherein said first factor (r(L(i)) is a ratio of the value (L(i)) of the pixel (i) of said luminance component over the luminance value (Y(i)) of the co-located pixel (i) in said first component (Y).27. The method of claim 23 , wherein said first factor (r(I(i))) is obtained from either a local or remote memory or from a ...

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Номер записи: 85
02-01-2020 дата публикации

REAL-TIME VIDEO FRAME PRE-PROCESSING HARDWARE

Номер: US20200005739A1
Автор: Bigioi Petronel, Corcoran Peter, Zaharia Corneliu
Принадлежит: FotoNation Limited

A dynamically reconfigurable heterogeneous systolic array is configured to process a first image frame, and to generate image processing primitives from the image frame, and to store the primitives and the corresponding image frame in a memory store. A characteristic of the image frame is determined. Based on the characteristic, the array is reconfigured to process a following image frame. 1. An image processing hardware unit comprising: 'receive frame data of a first image frame;', 'a frame receiving component configured to generate, based on the frame data of the first image frame, an image processing primitive;', 'wherein the image processing primitive is generated by identifying a sub-region of the first image frame and generating the image processing primitive from data of the sub-region;', 'wherein the image processing primitive comprises an image map;, 'a frame processing component configured to generate, based on the image map, an integral image (II) primitive by computing for a first pixel of the II primitive a sum of luminance values of all pixels located above and to the left from the first pixel in the image map; and', 'store the II primitive and the first image frame in a memory store., 'an integral image accumulator configured to2. The image processing hardware unit of claim 1 , wherein the integral image accumulator is further configured to:generate, based on the II primitive, an integral image square (II2) primitive as a product of the II primitive multiplied by the II primitive; andstore the II2 primitive in the memory store.3. The image processing hardware unit of claim 2 , wherein the integral image accumulator is further configured to:for each pixel of the sub-region, determine a similarity score indicating a similarity between a color of the pixel and a skin color;determine a skin II primitive based on the similarity scores determined for the sub-region; andstore the skin II primitive in the memory store.4. The image processing hardware unit of ...

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Номер записи: 86
05-01-2017 дата публикации

APPARATUS AND A METHOD FOR MODIFYING COLORS OF A FOCAL STACK OF A SCENE ACCORDING TO A COLOR PALETTE

Номер: US20170006270A1
Автор: Demoulin Vincent, SABATER Neus
Принадлежит:

The present invention generally relates to COLOR transfer between two images. COLOR transfer is a known technic consisting in modifying the COLORs of a source image by applying the COLOR palette of an example image without changing the source image structure. A lot of COLOR transfer method are known which consist in transferring COLORs between two images, however, those methods do not preserve the quality of the bokeh in areas of an images that are not in focus at a given depth. This results in a navigation in the depth dimension that is not smooth. It is proposed to modify the COLORs of a focal stack of a scene according to a COLOR palette by propagating the COLORs of the pixels in focus in different layers of the reCOLORed focal stack to the layers of the reCOLORed focal stack located behind the layer wherein a considered pixel is in focus. 1. An apparatus for modifying COLORs of a focal stack of a scene according to a COLOR palette comprising a processor configured to:applying the COLOR palette to an all-in-focus image generated from said focal stack,estimating the COLOR of a not-in-focus pixel in a layer of a reCOLORed focal stack generated from the obtained reCOLORed all-in-focus image of the scene depending on a COLOR and on a position in said reCOLORed focal stack of at least one pixel in focus in at least one layer of said reCOLORed focal stack.2. The apparatus according to any of claim 1 , wherein the processor is configured to store claim 1 , during the generation of the all-in-focus image claim 1 , a position in the focal stack of a layer wherein a pixel is in focus.3. The apparatus according to claim 2 , wherein the processor is configured to generate the reCOLORed focal stack by putting a pixel of the reCOLORed all-in-focus image back into the layer of the reCOLORed focal stack wherein said pixel is focus.4. The apparatus according to claim 1 , wherein the processor is configured to propagate the COLOR of a pixel in focus in a layer of the reCOLORed ...

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Номер записи: 87
03-01-2019 дата публикации

Display management methods and apparatus

Номер: US20190005919A1
Автор: Atkins Robin, Damberg Gerwin, Messmer Neil W., Seetzen Helge
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data. 2. A method according to wherein the video parameter comprises a tone or color value.3. A method according to comprising performing the extrapolating or interpolating for the tone or color value for pixels of a video frame.4. A method according to wherein for at least some of the pixels a value of the parameter is the same in the first and second input video signals.5. A method according to wherein the extrapolating or interpolating is performed in a perceptually linear color space.6. A method according to wherein the perceptually linear color space comprises an IPT claim 5 , LogYxy or LogYu′v′ color space.7. A method according to wherein the extrapolating or interpolating comprises tone mapping and the tone mapping comprises determining a weighted sum of logarithms of tone values from the first and second video signals.8. A method according to wherein claim 7 , in the tone mapping claim 7 , the weighted sum is determined using a weighting factor based on a difference between a maximum of the target range and a maximum of one of the first and second ranges.9. A method according to wherein the extrapolating or interpolating is performed on-the-fly for values of the video parameter specified for pixels in the first and second input video signals.10709. A method according to wherein one of the first and second input video signals comprises a Rec. video signal.11. A method according to wherein one of the first and second ranges covers the full range of parameter values perceptible by the human ...

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Номер записи: 88
03-01-2019 дата публикации

IMAGE CAPTURING APPARATUS, CONTROL METHOD FOR THE SAME, AND STORAGE MEDIUM

Номер: US20190007593A1
Автор: Watanabe Takeshi
Принадлежит:

An image capturing apparatus includes an image capturing unit configured to capture an image of an object, a calculation unit configured to extract a maximum luminance value of the object from an image signal that is output from the image capturing unit, and to calculate an object luminance value representing the maximum luminance value of the object with absolute luminance, and an exposure control unit configured to control exposure of the image capturing unit such that an image capture maximum luminance value, which is a maximum value of the absolute luminance capable of being captured with the image capturing unit, is greater than or equal to the object luminance value. 1. An image capturing apparatus comprising:at least one processor or circuit configured to perform the operations of the following units:an image capturing unit configured to capture an image of an object;a calculation unit configured to extract a maximum luminance value of the object from an image signal that is output from the image capturing unit, and to calculate an object luminance value representing the maximum luminance value of the object with absolute luminance; andan exposure control unit configured to control exposure of the image capturing unit such that an image capture maximum luminance value, which is a maximum value of the absolute luminance capable of being captured with the image capturing unit, is greater than or equal to the object luminance value.2. The image capturing apparatus according to claim 1 ,wherein the exposure control unit controls exposure of the image capturing unit such that the image capture maximum luminance value is slightly larger than the object luminance value.3. The image capturing apparatus according to claim 1 ,wherein the exposure control unit controls exposure to become darker in a case where the object luminance value is larger than the image capture maximum luminance value, and controls exposure to become lighter in a case where the object luminance ...

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Номер записи: 89
08-01-2015 дата публикации

IMAGING DEVICE

Номер: US20150009368A1
Автор: Kisanuki Takeru, Nonaka Yuichi
Принадлежит:

An imaging device is provided with a lens distortion correction function that requires less circuit scale and does not degrade image resolution. 1. An imaging device that images an object , the imaging device comprising:an imaging element including a plurality of color filters;a same-color interpolation unit that generates a lens distortion-corrected interpolation signal by using a same-color pixel in an image signal from the imaging element;a luminance signal generation unit that generates a luminance signal from the image signal from the imaging element;a first luminance interpolation unit and a second luminance interpolation unit that use the luminance signal generated by the luminance signal generation unit to generate a lens distortion-corrected interpolation signal;a lens distortion characteristics table data unit that holds information of coordinates after lens distortion characteristics correction in a memory;a coordinate/interpolation coefficient setting unit that individually generates interpolation coefficients for correcting lens distortion for each of the same-color interpolation unit, the first luminance interpolation unit, and the second luminance interpolation unit on the basis of information from the lens distortion characteristics table data unit; anda correction unit that outputs an interpolation signal that corrects a signal from the same-color interpolation unit from a ratio between the interpolation signal generated by the first luminance interpolation unit and the interpolation signal generated by the second luminance interpolation unit.2. An imaging device that images an object , the imaging device comprising:an imaging element including a plurality of color filters;a same-color interpolation unit that generates a lens distortion-corrected interpolation signal by using a same-color pixel in an image signal from the imaging element;a luminance signal generation unit that generates a luminance signal from the image signal from the imaging ...

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Номер записи: 90
03-01-2019 дата публикации

IMAGE DETAILS PROCESSING METHOD, APPARATUS, TERMINAL, AND STORAGE MEDIUM

Номер: US20190007666A1
Автор: ZHU Dezhi
Принадлежит:

Embodiments of the present disclosure disclose an image details processing method, comprises: obtaining each luminance data in the image; performing non-linear transformation on the each luminance data to obtain corresponding transformed data; performing the low frequency processing on the transformed data to obtain low frequency data; based on the low-frequency data and the transformed data, determining the corrected luminance data. The embodiments of the present disclosure also disclose an image details processing apparatus, a terminal, and a storage medium. 1. An image details processing method , comprises:obtaining each luminance data in the image;performing non-linear transformation on the each luminance data to obtain corresponding transformed data;performing the low frequency processing on the transformed data to obtain low frequency data;based on the low-frequency data and the transformed data, determining the corrected luminance data.2. The method according to claim 1 , wherein: performing non-linear transformation on the each luminance data to obtain corresponding transformed data claim 1 , comprises:transforming the luminance data from the real-number domain to the logarithmic domain to obtain the corresponding transformed data.3. The method according to claim 1 , wherein: performing the low frequency processing on the transformed data to obtain low frequency data claim 1 , comprises:performing low-frequency filtering on the transformed data to obtain the low-frequency data; orperforming bi-linear interpolation on the transformed data to obtain the low-frequency data.5. The method according to claim 1 , wherein: obtaining each luminance data in the image claim 1 , comprises:receiving user's photographing instruction;getting the image data of the current frame; andseparating the luminance component from the image data as the luminance data.6. An image details processing apparatus claim 1 , comprises:an obtaining unit, configured to obtain each luminance ...

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Номер записи: 91
08-01-2015 дата публикации

VIDEO DISPLAY DEVICE AND TELEVISION RECEIVING DEVICE

Номер: US20150009418A1
Автор: Fujine Toshiyuki, Shiraya Yoji
Принадлежит: SHARP KABUSHIKI KAISHA

The present invention makes possible video expressions with increased feeling of brightness and increased contrast feeling and to be able to prevent the feeling of brightness and the contrast feeling from becoming unnatural during execution of the multi display. This video display device comprises: a control portion (a signal processing portion (); an area-active-control/luminance-stretch-portion ()) that controls a displaying portion () and a backlight portion (); and a display instruction detection portion () that detects display instructions of first and second input video signals. The control portion stretches and increases the luminance of the backlight portion (), and also controls a light emitting portion enhancement processing according to a result of the detection. In the light emitting portion enhancement processing, the display luminance of a light emitting portion is enhanced by producing a histogram by integrating number of pixels for a predetermined feature amount relating to the brightness of the input video signal, detecting an upper region of a predetermined range of the histogram as the light emitting portion, and reducing luminance of a video signal of non-light emitting portion except the light emitting portion of the input video signal.

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Номер записи: 92
02-01-2020 дата публикации

METHOD FOR PROCESSING AN INPUT IMAGE, DEVICE, TERMINAL EQUIPMENT AND ASSOCIATED COMPUTER PROGRAM

Номер: US20200007839A1
Автор: Bist Cambodge, Cozot Remi, Madec Gerard
Принадлежит:

A method for processing at least one digital image for reproduction on a display device. The image includes image elements, an image element being associated with color information having, in a first color space, a luminance component and chrominance components. The method includes the following acts: determining a number of image elements, known as “bright” elements, at least the luminance component of which has a value greater than a first predetermined threshold; evaluating a maximum tolerated brightness value as a decreasing function of the number of counted image elements; and transforming the first luminance components of the image elements to second luminance components, including for an image element, calculating an intermediate luminance value by applying an expansion exponent to the first luminance component value and multiplying the intermediate value calculated by the evaluated maximum tolerated luminosity value. 1. A processing method comprising:processing at least one digital image for reproduction on a display device, said image comprising image elements, an image element being associated with color information comprising, in a first color space, a luminance component and chrominance components, said luminance component having a value within a first interval of predetermined values, said device being capable of restoring luminance values within a second interval of predetermined values, of a length greater than that of the first interval, said processing comprising the following acts performed by a processing device:counting a number of image elements, known as “bright” elements, at least the luminance component of which has a value greater than a first predetermined threshold;evaluating a maximum tolerated brightness value as a decreasing function of the number of counted pixels; andtransforming the first luminance components of the image elements to second luminance components, comprising for an image element, calculating an intermediate luminance ...

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Номер записи: 93
09-01-2020 дата публикации

Image processing device and image processing method

Номер: US20200013198A1
Автор: Koji Kamiya, Tomoyuki Endo
Принадлежит: Sony Corp

To enable proper adjustment of a monitor using a color bar regardless of a difference in transfer functions. Provided is an image processing device including a determination unit configured to determine a transfer function related to conversion between light and an image signal and to be used in a display device among a plurality of transfer functions, and a generation unit configured to generate a color bar signal corresponding to the transfer function determined by the determination unit and output the generated color bar signal to the display device.

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Номер записи: 94
15-01-2015 дата публикации

METHOD FOR SCALING CHANNEL OF AN IMAGE

Номер: US20150015783A1
Автор: Bernard Christophe, De Vulpillieres Marc, Varoquaux Vincent
Принадлежит:

The present invention relates to a method for scaling a first channel, wherein the method comprises computing a low resolution second channel based on a transformation of the second channel with a transformation function used to transform high resolution channel into a low resolution channel; computing a correlation function between the low resolution second channel and the first channel; determining a predicted second channel having the high resolution from the low resolution second channel according to a prediction method; computing an high-pass second channel based on the difference between the second channel and the predicted second channel and based on the correlation function; determining a predicted first channel having the high resolution from the first channel according to the prediction method. 17-. (canceled)8. A method for enhancing an image , comprising:determining a first channel of low resolution and a second channel of high resolution based on a frame of the image;computing a low-resolution second channel based on a transformation of the second channel;determining a correlation between the low-resolution second channel and the first channel;computing a high-pass second channel based at least in part on the second channel and the correlation; andenhancing the image via scaling the first channel based at least in part on the high-pass second channel.9. The method of claim 8 , further comprising determining a predicted second channel of high resolution based on the low-resolution second channel.10. The method of claim 9 , wherein the computation of the high-pass second channel is based at least in part on a (i) difference between the second channel and the predicted second channel and (ii) the correlation.11. The method of claim 10 , further comprising determining a predicted first channel of high resolution based at least in part on the first channel.12. The method of claim 11 , wherein the scaling of the first channel is based at least in part on the ...

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Номер записи: 95
11-01-2018 дата публикации

Display Management for High Dynamic Range Video

Номер: US20180013927A1
Автор: Atkins Robin
Принадлежит: DOLBY LABORATORIES LICENSING CORPORATION

A display management processor receives an input image with enhanced dynamic range to be displayed on a target display which has a different dynamic range than a reference display. The input image is first transformed into a perceptually-quantized (PQ) color space, preferably the IPT-PQ color space. A color volume mapping function, which includes an adaptive tone-mapping function and an adaptive gamut mapping function, generates a mapped image. A detail-preservation step is applied to the intensity component of the mapped image to generate a final mapped image with a filtered tone-mapped intensity image. The final mapped image is then translated back to the display's preferred color space. Examples of the adaptive tone mapping and gamut mapping functions are provided. 119-. (canceled)20. A method comprising:accessing an input image in a first color space with a first dynamic range;applying a color transformation step to the input image to determine a first output image in a perceptually-quantized IPT (IPT-PQ) color space, the first output image comprising intensity pixel values and chroma components pixel values, wherein the color transformation step comprises applying a non-linear perceptual quantizer function to a function of the input image; wherein the color-volume mapping function comprises a tone mapping function, a saturation mapping function, and a pixel saturation estimate function,', 'wherein the tone mapping function generates the intensity pixel values of the tone-mapped output image by applying a non-linear mapping to the intensity pixel values of the first output image,', 'wherein the saturation mapping function generates the chroma components pixel values of the tone-mapped output image by adjusting the intensity pixel values of the first output image based on changes in intensity,, 'applying a color-volume mapping function to the first output image to generate a tone-mapped output image, the tone-mapped output image comprising intensity pixel values ...

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Номер записи: 96
11-01-2018 дата публикации

VIDEO SIGNAL CONVERSION METHOD, VIDEO SIGNAL CONVERSION DEVICE AND DISPLAY SYSTEM

Номер: US20180013978A1
Автор: DUAN Ran, GENG Lihua
Принадлежит: BOE Technology Group Co., Ltd.

A video signal conversion method, a corresponding video signal conversion device and a display system including the video signal conversion device, by which low-resolution video signals can be converted and combined into a high-resolution video signal, such that a high-resolution image combined by low-resolution images can be displayed on an ultra-high definition display screen. The video signal conversion method includes: receiving in parallel a plurality of sub-frames divided from a low-resolution image of a video signal; performing image processing on each of the received sub-frames; and synthesizing the plurality of sub-frames after being subjected to the image processing into a high-resolution image frame and displaying the high-resolution image on a display device. 1. A video signal conversion method , comprising:receiving in parallel a plurality of sub-frames segmented from a low resolution image of a video signal;performing image processing on each received sub-frame; andsynthesizing a plurality of sub-frames that has been subjected to image processing into one frame of high resolution image to be displayed on a display device.2. The video signal conversion method according to claim 1 , wherein the image processing is performed in parallel on the plurality of sub-frames segmented from one frame of low resolution image in a plurality of processing channels.3. The video signal conversion method according to claim 1 , wherein the image processing comprises at least one of color space conversion claim 1 , color enhancement processing claim 1 , frame rate conversion and pixel format conversion.4. The video signal conversion method according to claim 1 , wherein the number of the plurality of sub-frames into which the low resolution image is segmented is determined based on at least one of a resolution of the low resolution image and a transmission rate of a data port receiving the low resolution image.5. The video signal conversion method according to claim 3 , ...

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Номер записи: 97
11-01-2018 дата публикации

ENDOSCOPE PROCESSOR

Номер: US20180013999A1
Автор: KOSHIKA Soichiro, SUMIYOSHI Masanori
Принадлежит: OLYMPUS CORPORATION

An endoscope processor includes: an image generation portion that generates a picked-up image of a subject, an image of which is picked up by an endoscope; a correction information acquisition portion that acquires correction information corresponding to magnification chromatic aberration of the endoscope from a scope memory in the endoscope; and an image correction portion that corrects the magnification chromatic aberration in the picked-up image based on the correction information. 1. An endoscope processor comprising:an image generation portion that generates a picked-up image of a subject, an image of which is picked up by an endoscope;a correction information acquisition portion that acquires correction information corresponding to magnification chromatic aberration of the endoscope from a scope memory in the endoscope; andan image correction portion that corrects the magnification chromatic aberration in the picked-up image based on the correction information.2. The endoscope processor according to claim 1 , further comprising:a processor memory that stores a plurality of correction tables;wherein the correction information includes key information associated with a predetermined correction table of the plurality of correction tables, andthe image correction portion extracts, based on the key information, the predetermined correction table associated with the key information from the plurality of correction tables, and corrects the magnification chromatic aberration in the picked-up image based on the extracted predetermined correction table.3. The endoscope processor according to claim 2 , wherein each correction table of the plurality of correction tables includes information for correcting the magnification chromatic aberration in the picked-up image.4. The endoscope processor according to claim 3 , wherein the each correction table is set according to an attaching position and direction of an optical system of the endoscope.5. The endoscope processor ...

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Номер записи: 98
10-01-2019 дата публикации

DIGITAL DEVICE, AND SYSTEM AND METHOD FOR CONTROLLING COLOR USING SAME

Номер: US20190014294A1
Автор: CHAE Myoungsuk
Принадлежит: LG ELECTRONICS INC.

The present invention relates to a digital device digital device may comprise: an input unit; a display unit; and a control unit for displaying a color gain adjustment window on the display unit according to a first input, extracting, when a certain color is selected in the color gain adjustment window, unique R, G, and B values of the selected color respectively, increasing or decreasing each of the extracted unique R, G, and B values according to a second input, increasing the gain value of the corresponding color when at least one of the increased unique R, G, and B values is equal to or greater than a first reference value, and decreasing the gain value of the corresponding color when at least one of the decreased unique R, G, and B values is equal to or less than a second reference value. 1. A digital device , comprising:an input unit receiving a first input and a second input;a display unit displaying a color gain adjusting window having a multitude of colors arrayed thereon; anda controller controlling the input unit and the display unit,wherein the controller displays the color gain adjusting window on the display unit in response to the first input,wherein if a prescribed color is selected from the color gain adjusting window, the controller extracts each of unique R, G and B values of the selected color,wherein if the second input is received through the color gain adjusting window, the controller increases or decreases the extracted unique R, G and B values in response to the second input,wherein if at least one of the increased unique R, G and B values is equal to or greater than a first reference value, the controller increases a gain value of the corresponding color, andwherein if at least one of the decreased unique R, G and B values is equal to or smaller than a second reference value, the controller decreases a gain value of the corresponding color.2. The digital device of claim 1 , wherein the display unit comprises a multi-display configuring a ...

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Номер записи: 99
10-01-2019 дата публикации

COLOR REMAPPING FOR NON-4:4:4 FORMAT VIDEO CONTENT

Номер: US20190014298A1
Автор: Ramasubramonian Adarsh Krishnan, RUSANOVSKYY Dmytro, Sole Rojals Joel
Принадлежит:

A video decoder is configured to reconstruct a first version of a current picture; determine a transformed sample of the first component, a transformed sample of the second component, and a transformed sample of the third component by applying a first matrix to a triplet comprising the samples of the first, second, and third components; include the transformed samples of the first, second, and third components in a second version of the current picture; determine, based on the transformed samples of the first, second, and third components and a first row of a second matrix, a set of transformed samples for the third component, the set of transformed samples for the third component including samples of the third component that are immediately neighboring the transformed sample of the third component; and include the set of transformed samples for the third component in the second version of the current picture. 1. A method of processing video data , the method comprising:receiving a bitstream comprising an encoded representation of the video data; the first version of the current picture is formatted according to a sampling format in which there are fewer samples of a first component and a second component than of a third component,', 'the first version of the current picture includes a sample of the first component, a sample of the second component, and a sample of the third component, and', 'the sample of the third component corresponds to the sample of the first component and the sample of the second component,, 'reconstructing, based on the bitstream, a first version of a current picture of the video data, whereindetermining a transformed sample of the first component, a transformed sample of the second component, and a transformed sample of the third component by applying a first matrix to a triplet comprising the sample of the first component, the sample of the second component, and the sample of the third component;including the transformed sample of the first ...

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Номер записи: 100