Video-signal layered coding and decoding methods, apparatuses, and programs with spatial-resolution enhancement

An input video signal is encoded at a plurality of coding layers exhibiting different spatial resolutions. The input video signal is spatially scaled down to a resolution-lowered video signal that exhibits a resolution lower than the video signal. The resolution-lowered video signal is encoded by using a quantization parameter, with a decoding procedure, thus obtaining first coded data and a decoded signal. The decoded signal is spatially scaled up through a high-resolution procedure for controlling high-frequency components estimation depending on the quantization parameter, thus obtaining a high-resolution scaled-up video signal. The input video signal is encoded through inter-spatial resolution prediction using the high-resolution scaled-up video signal as a predictive signal, thus obtaining second coded data that exhibits a resolution higher than the resolution-lowered video signal.

Moving picture coding device and moving picture coding method

In a moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture, a prediction mode determiner derives motion information of a coding target block. A motion compensation predictor changes the derived motion information for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size. The motion compensation predictor constructs a prediction signal of the coding target block through the motion compensation prediction using the derived motion information when the coding target block has a size larger than the certain size or using the changed motion information when the coding target block has the size smaller than or equal to the certain size.

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD AND MOVING PICTURE CODING PROGRAM

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation uni codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

INTRA-PREDICTION MODE DERIVATION FOR COLOR SIGNALS, WHEREBY THE SIGNALS MAY HAVE THE SAME OR DIFFERENT ASPECT RATIOS THAN CORRESPONDING BRIGHTNESS SIGNALS

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode , when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other .

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

ABSTRACT In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second .. intra-color-difference prediction mode used when the aspect ratios are different from each other. . Date Recue/Date Received 2020-09-09

Video encoding device, video encoding method, and video encoding program

To provide a video encoding device for improving coding efficiency by reducing a coding amount of a quantization parameter, a video encoding method and a video encoding program. In a video encoding device that further divides a first block, obtained by dividing each picture of a video by a given side, into one or more second blocks and then encodes the video in block units, a quantization parameter calculating unit 110 calculates a quantization parameter for the second block and a predicted quantization parameter calculating unit 114 uses quantization parameters of one or more third blocks that are adjacent to the second block to calculate a predicted quantization parameter for the second block. When the third blocks that are adjacent to the second block are in a position beyond the boundary of the first block, the predicted quantization parameter calculating unit 114 uses the quantization parameter of a fourth block that was encoded before the second block, to derive the predicted quantization ...

MOVING IMAGE HIERARCHICAL ENCODING APPARATUS, MOVING IMAGE HIERARCHICAL ENCODING METHOD, MOVING IMAGE HIERARCHICAL ENCODING PROGRAM, MOVING IMAGE HIERARCHICAL DECODING APPARATUS, MOVING IMAGE HIERARCHICAL DECODING METHOD, AND MOVING IMAGE HIERARCHICAL DECODING PROGRAM

PROBLEM TO BE SOLVED: To improve efficiency of prediction between layers in hierarchical encoding, and to rightly perform decoding. SOLUTION: A spatial decimator 104 performs spatial reduction processing on an input video signal, and a base layer encoder 105 encodes the spatially reduced signal. A base layer decoder 106 locally decodes base layer encoded data to produce a locally decoded signal. A spatial interpolator 107 performs spatial enlargement processing on the locally decoded signal to produce a high-resolution decoded signal. A spatial high-frequency component estimator/enlarger 108 estimates/enlarges a spatial high-frequency component on the basis of the locally decoded signal. An adder 111 adds the spatial high-frequency component and the high-resolution decoded signal to produce an inter-layer prediction signal. and an enhancement layer encoder 109 performs encoding with prediction using the inter-layer prediction signal. A multiplexer 110 multiplexes encoded data or the like ...

Verfahren zur Kompression von bewegten Bildsignalen nach dem Zeilensprungverfahren

Moving image decoding apparatus, moving image decoding method

An inter-prediction information derivation unit (104) derives inter-prediction information candidates from inter-prediction information pertaining to a prediction block to be coded and coded prediction blocks which are contiguous to the prediction block to be coded within the same picture, and inter-prediction information pertaining to prediction blocks in a coded picture which is different from that of the prediction block to be coded. The inter-prediction information derivation unit (104) determines, among the derived inter-prediction information candidates, an inter-prediction information candidate to be used for the inter-prediction of the prediction block to be coded. A second coded bit sequence generation unit (110) encodes indices of the inter-prediction information candidates on the basis of the number of the inter-prediction information candidates.

HIGHLY EFFICIENT ENCODNG DEVICE/DECODING DEVICE

PROBLEM TO BE SOLVED: To provide a MPEG specification to a picture signal having the input precision not less than specified by the MPEG and to execute the encoding/ decoding of high picture quality by providing a subtracter for subtracting the predicted reference picture of n-bit precision, which is motion-compensated, and encoding the input picture signal of m-bit precision. SOLUTION: In the input signal of 10.2 bits, which is outputted from a signal conversion circuit, the reference picture signal of eight bits (eight bits prediction signal) is subtracted by a subtracter. The output signal is inputted to an orthogonal transformation circuit executing discrete cosine transformation(DCT) through a two-dimensional block transformation circuit. In the orthogonal transformation circuit, a DCT arithmetic processing similar to an MPEG 2 specification is executed and the DCT coefficient of the result is inputted to a quantizing circuit. The coefficient quantized by the quantizing circuit is ...

Method and apparatus for encoding and decoding multi-view video signal, and related computer programs

A multi-view video signal is encoded. The multi-view video signal includes picture signals corresponding to different viewpoints respectively. One among the viewpoints is designated as a base viewpoint. The base viewpoint corresponds to a picture signal which is encoded without referring to at least one picture signal corresponding to one of the viewpoints except the base viewpoint. There is determined a desired delay time of the start of decoding a coded signal originating from each of the picture signals corresponding to the viewpoints except the base viewpoint relative to the start of decoding a coded signal originating from the picture signal corresponding to the base viewpoint. Information representing the determined delay time is generated. Then, the generated information is encoded.

PREDICTION CODER

PURPOSE: To obtain a data tracing both a steep change and a slow change by classifying a predicted value at a prescribed reference level and quantizing the difference value according to a quantization reference set separately in response to the prediction level. CONSTITUTION: A predicted level is classified into 8 stages to set 8 kinds of quantization references and a conversion table from a difference into a quantization characteristic is stored in a code quantization circuit 32 in response to each predicted level. Moreover, the conversion table from the quantization characteristic into a 4-bit code is stored in a code conversion circuit. A subtraction circuit 31 of a coding section 3 generates a difference value with a predicted value outputted from a prediction circuit 35. A code quantization circuit 32 obtains a quantization characteristic value by using a conversion table in response to an output of a predicted level discrimination circuit 36 from the difference value. Moreover, the ...

Verfahren zur Kompression von bewegten Bildsignalen nach dem Zeilensprungverfahren

Image encoding device, image encoding method, image encoding program, image decoding device, image decoding method, and image decoding program

An image encoding device that uses intra-prediction to encode image signals containing a luminance signal and a color-difference signal in block units, and that encodes information pertaining to an intra-prediction mode in block units. When the pixel aspect ratios of the luminance signal and the color-difference signal differ an encoded stream generation unit (113) derives a second intra-color-difference prediction mode (which is used when the aspect ratios differ), wherein the mode numbers for a first intra-color-difference prediction mode (which is used when the aspect ratios are identical) are converted to scaled mode numbers.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block. 1. A moving picture coding device that codes moving pictures in units of a block by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a quantization parameter calculation unit configured to calculate a quantization parameter of the second block;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block;a differential quantization parameter generation unit configured to generate a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter of the second block; anda coding unit configured to code the differential quantization parameter of the second block, whereinthe predictive quantization parameter deriving unit sets the ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAMM.

An image encoding device that uses intra-prediction to encode image signals containing a luminance signal and a color-difference signal in block units, and that encodes information pertaining to an intra-prediction mode in block units. When the pixel aspect ratios of the luminance signal and the color-difference signal differ an encoded stream generation unit (113) derives a second intra-color-difference prediction mode (which is used when the aspect ratios differ), wherein the mode numbers for a first intra-color-difference prediction mode (which is used when the aspect ratios are identical) are converted to scaled mode numbers.

APPARATUS, METHOD, AND PROGRAM FOR ENCODING AND DECODING IMAGE

An image signal encoding unit 107 generates image encoded data by encoding a plurality of images from multiple viewpoints different from each other. A depth information encoding unit (e.g., a depth signal encoding unit 108) generates depth information encoded data by encoding depth information that indicates the depth of a specific space from at least one viewpoint. A unitization unit 109 generates an encoded stream including the image encoded data and depth information encoded data, which are respectively generated by the image signal encoding unit 107 and the depth information encoding unit.

DECODER

PROBLEM TO BE SOLVED: To provide a decoder for obtaining superior re-encoding even at transmission taking place beyond a frame boundary of a coded parameter when the image size and a coded image size are mismatched in HDTV and the like. SOLUTION: The coded parameter in accordance with a macro-block is superimposed again by changing the order into another bit layer of a decoding video signal. COPYRIGHT: (C)2002,JPO ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

INTRA-PREDICTION MODE DERIVATION FOR COLOR SIGNALS, WHEREBY THE SIGNALS MAY HAVE THE SAME OR DIFFERENT ASPECT RATIOS THAN CORRESPONDING BRIGHTNESS SIGNALS

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

Video decoding device, video decoding method, and video decoding program

Provided is a video coding device with which each picture of a video is partitioned into a first block at a prescribed size which is further partitioned into one or a plurality of second blocks, and the video coded in block units. A quantization parameter computation unit (110) computes a second block quantization parameter. A predict quantization parameter derivation unit (114) derives a second block predict quantization parameter, using a quantization parameter of a third block which is adjacent to the left of the second block and a fourth block which is adjacent above the second block. A differential quantization parameter generating unit (111) generates a second block differential quantization parameter from the difference of the second block quantization parameter and the predict quantization parameter. A first coding bit string generating unit (112) codes the second block differential quantization parameter.

Picture decoding device, picture decoding method and picture decoding program

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVIING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.

HIGH EFFICIENCY ENCODER OF VIDEO SIGNAL

PROBLEM TO BE SOLVED: To improve encoding efficiency and to reduce the quantization distortion of a block including a boundary at the time of highly efficiently encoding the video signals of a letter box type. SOLUTION: Input analog video signals are A/D converted in an A/D converter 2, separated into luminance signals Y and color difference signals Cr and Cb in a Y/C separator 3, and stored in a frame memory 4. A letter box boundary detector 5 detects the boundary of a non-image part and an image part for respective frames by a line unit. In the case that the boundary is over the image processing unit (block) of video signal high efficiency encoding, an encoding object image control part 6 shifts the entire screen, replaces the non- image part positioned on the inner side of the image processing unit (block) including the boundary with the data of the adjacent image part and replaces the non-image part with specified uniform data. The encoding object image control part 6 reads the image ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

MOVING PICTURE CODING DEVICE AND MOVING PICTURE CODING METHOD

In a moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture, a prediction mode determiner derives motion information of a coding target block. A motion compensation predictor changes the derived motion information for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size. The motion compensation predictor constructs a prediction signal of the coding target block through the motion compensation prediction using the derived motion information when the coding target block has a size larger than the certain size or using the changed motion information when the coding target block has the size smaller than or equal to the certain size. 1. A moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture , comprising:a motion information deriver that derives motion information from any of blocks spatially and blocks temporally neighboring a coding target block and stores the derived motion information without converting from bi-prediction into single prediction even if a prediction block size is smaller than a certain size; anda motion compensation predictor that performs motion compensation prediction using the derived motion information if the prediction block size is larger than or equal to the certain size, and performs motion compensation prediction assuming the motion information as single prediction instead of using the derived motion information if the prediction block size is smaller than the certain size even when the derived motion information is bi-prediction.2. A moving picture coding method of coding a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture , ...

VIDEO DECODING DEVICE, VIDEO DECODING METHOD, AND VIDEO DECODING PROGRAM

PROBLEM TO BE SOLVED: To solve the program that, when a motion vector of a block at the same position as that in another picture is used as a candidate of a predictive motion vector, since it is necessary to record the motion vector of another picture that has already been decoded in a memory of a decoding device, the data amount of motion vectors becomes huge, and an additional memory becomes indispensable, so that cost increases. SOLUTION: A motion vector compression/decompression unit 209, before starting decoding of the next picture, extracts motion vectors recorded in a memory, and selects one motion vector from among plural motion vectors in a predetermined range as a representative value of the predetermined range, thereby reducing the storage capacity for motion vectors occupied in the memory. The predetermined range is designated at the time of encoding, and data structure stored as information is also defined in an encoded bit stream, so that reduction of motion vectors similar ...

PREDICTIVE CODING METHOD FOR INTERLACE IMAGE SIGNAL

PURPOSE: To present the method for efficiently coding an interlace digital image signal by using a predictive coding method based on an MPEG standard idea (objective for a non-interlace image signal) as one of predictive coding systems between frames for storage media. CONSTITUTION: For the image signal of one field in a reference frame set for each prescribed frame interval, in-field coding is executed and for the image signal of the other field, inter-field coding is executed. Concerning the image signal of the other field, inter-frame coding is executed based on the image signal of a field corresponding to the hourly preceding or following reference frame or based on the coding-processed signal. COPYRIGHT: (C)1992,JPO&Japio ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.

MOVING IMAGE DECODING APPARATUS, MOVING IMAGE DECODING METHOD AND MOVING IMAGE DECODING PROGRAM

PROBLEM TO BE SOLVED: To increase the efficiency of motion-compensated prediction by improving the quality of predicted images while suppressing an increase in computational complexity. SOLUTION: A motion vector decoding section decodes a motion vector of a block to be decoded from an encoded stream. A prediction mode decoding section decodes mode selection information from a plurality of prediction modes. A first reference image synthesis section synthesizes a first reference block extracted from a first reference image via the motion vector and a given region of at least one other reference image to generate a first synthetic reference block. A second reference image synthesis section specifies and synthesizes a second reference block and the given region of the reference image used for the synthesis, via information required for synthetic reference block generation from decoded regions, to generate a second synthetic reference block. A decoding section adds a predicted block selected ...

Image decoding device, moving image decoding method, reception device and reception method

An intra prediction mode selecting unit (509) selects an intra prediction mode for a block subject to coding. A most probable mode list construction unit (602) constructs, using intra prediction modes for multiple reference blocks, a list of most probable modes having a certain number of elements for any block subject to coding, irrespective of the number of different intra prediction modes for multiple coded blocks. A most probable mode index calculating unit (605) calculates, when the intra prediction mode for a block subject to coding is probable, information identifying the most probable mode according to the list. A non-probable mode index calculating unit (607) calculates, when the intra prediction mode for a block subject to coding is not probable, information identifying the non-probable mode according to the list.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

Image encoding device, image encoding method and image encoding program, as well as image decoding device, image decoding method and image decoding program

In the present invention, an intra-prediction mode selection unit (509) selects an intra-screen prediction mode for a block to be encoded. A priority prediction mode list creation unit (602), using intra-screen prediction modes for a plurality of reference blocks, creates a list of priority prediction modes having a predetermined number of elements for any of the blocks to be encoded regardless of the number of different intra-screen prediction modes for a plurality of encoded blocks. A priority prediction mode index calculation unit (605), if the intra-screen prediction mode of the block to be encoded is a priority prediction mode, calculates information for identifying the priority prediction mode in accordance with the list. A non-priority prediction mode index calculation unit (607), if the intra-screen prediction mode of the block to be encoded is a non-priority prediction mode, calculates information for identifying the non-priority prediction mode on the basis of the list.

Picture decoding device, picture decoding method and picture decoding program

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program

In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block.

Progressives Signalkodierungssystem für bewegte Bilder

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

Moving images encoding device, moving images decoding method, and moving images decoding programme

Provided is a video coding device with which each picture of a video is partitioned into a first block at a prescribed size which is further partitioned into one or a plurality of second blocks, and the video coded in block units. A quantization parameter computation unit (110) computes a second block quantization parameter. A predict quantization parameter derivation unit (114) derives a second block predict quantization parameter, using a quantization parameter of a third block which is adjacent to the left of the second block and a fourth block which is adjacent above the second block. A differential quantization parameter generating unit (111) generates a second block differential quantization parameter from the difference of the second block quantization parameter and the predict quantization parameter. A first coding bit string generating unit (112) codes the second block differential quantization parameter.

Picture decoding device, picture decoding method and picture decoding program

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

HIERARCHICAL ENCODER, NON-HIERARCHICAL ENCODING CONVERSION DEVICE, HIERARCHICAL ENCODING PROGRAM, AND NON-HIERARCHICAL ENCODING CONVERSION PROGRAM

PROBLEM TO BE SOLVED: To efficiently generate a non-hierarchical encoding multiplexing stream in a short time by generating a hierarchical encoding multiplexing stream on a previous stage in consideration of an encoding rate in the case involving conversion into the non-hierarchical encoding multiplexing stream, and reducing the load of re-encoding process. SOLUTION: A hierarchical encoding device 110 includes encoding amount control parts 230, 268, and 298 for controlling the basic quantization parameter and extension quantization parameter so that a preset encoding rate meets an encoding amount of the non-hierarchical encoding multiplexing stream, when a basic hierarchical encoding stream and an extension hierarchical encoding stream are converted into non-hierarchical encoding multiplexing stream of an arbitrary hierarchy. COPYRIGHT: (C)2010,JPO&INPIT ...

IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, AND IMAGE DECODING METHOD

A displacement vector detection unit searches for a signal with high correlation with an encoding target block using a locally-decoded image in an already encoded block so as to calculate, using a signal with the highest correlation as a displacement prediction signal, a displacement vector. A reduced-image displacement vector detection unit searches for a signal with high correlation with the encoding target block using a signal resulting from performing reduction at least either horizontally or vertically for the locally-decoded image in an already encoded block so as to obtain, using the signal with the highest correlation as the displacement prediction signal, the displacement vector indicating the displacement in a screen between a reduced encoding target block and a reduction displacement prediction signal. Then a signal with high correlation with the encoding target block from the displacement prediction signal and the reduction displacement prediction signal is selected as a prediction signal.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator 113 converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other.

Image encoding device, image encoding method, image encoding program, image decoding device, image decoding method, and image decoding program

An image encoding device that uses intra-prediction to encode image signals containing a luminance signal and a color-difference signal in block units, and that encodes information pertaining to an intra-prediction mode in block units. When the pixel aspect ratios of the luminance signal and the color-difference signal differ an encoded stream generation unit (113) derives a second intra-color-difference prediction mode (which is used when the aspect ratios differ), wherein the mode numbers for a first intra-color-difference prediction mode (which is used when the aspect ratios are identical) are converted to scaled mode numbers.

Motion image encoding device, motion image encoding method, and recording medium storing motion image encoding program

將動態影像之各圖像以所定尺寸加以分割而成之第1區塊之內部再分割成1個或複數個第2區塊而將動態影像依照區塊單位進行編碼的動態影像編碼裝置中，量化參數算出部(110)係算出第2區塊的量化參數。預測量化參數導出部(114)，係使用第2區塊的左方鄰近之第3區塊及第2區塊的上方鄰近之第4區塊的量化參數，來導出第2區塊的預測量化參數。差分量化參數生成部(111)，係根據第2區塊的量化參數與預測量化參數的差分，生成第2區塊的差分量化參數。第1編碼位元列生成部(112)，係將第2區塊的差分量化參數，予以編碼。

Moving picture coding apparatus, moving picture coding method, and moving picture coding program, and moving picture decoding apparatus, moving picture decoding method, and moving picture decoding program

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

Image encoding device, image encoding method, image encoding program, transmission device, transmission method, transmission program, image decoding device, image decoding method, image decoding program, reception device, method, and program

In this image encoding device, which encodes an image and encodes a differential quantization parameter at a quantization encoding block unit that is a management unit of a quantization parameter resulting from splitting the image, a quantization parameter calculation unit (110) derives the quantization parameter of the quantization encoding block that is to be encoded. A predicted quantization parameter derivation unit (114) derives a predicted quantization parameter using the quantization parameters of a plurality of quantization encoding blocks that precede, in the order of encoding, the quantization encoding block that is to be encoded. A differential quantization parameter generation unit (111) derives the differential quantization parameter of the quantization encoding block that is to be encoded by means of the difference between the predicted quantization parameter and the quantization parameter of the quantization encoding block that is to be encoded. A first encoded bitstream ...

Apparatus and method for encoding images from multiple viewpoints and associated depth information

An image signal encoding unit generates image encoded data by encoding a plurality of images from multiple viewpoints different from each other. A depth information encoding unit (e.g., a depth signal encoding unit) generates depth information encoded data by encoding depth information that indicates the depth of a specific space from at least one viewpoint. A unitization unit generates an encoded stream including the image encoded data and depth information encoded data, which are respectively generated by the image signal encoding unit and the depth information encoding unit.

Image encoding device, image decoding device, image encoding method, and image decoding method

A disparity vector detection unit retrieves a signal having a high correlation with an encoding target block and acquire the signal having the high correlation and a disparity vector which is a disparity in a screen of the encoding target block by using a local decoded image of a block in the same image signal which was previously encoded, with respect to the encoding target block. A disparity prediction signal generation unit generates a prediction signal in accordance with the disparity vector. The disparity vector detection unit includes a DC calculation unit operative to predict a DC component of an image signal of the encoding target block from a neighboring decoded image, and a disparity reference DC calculation unit operative to calculate a DC component of a prediction signal represented by the disparity vector.

Video encoding device, video encoding method, video encoding program, video decoding device, video decoding method, video decoding program

A video encoding device that further divides a first block, obtained by dividing each picture of a video by a given size, into one or more second blocks, and then encodes the video in block units, wherein a quantization parameter calculating unit (110) calculates a quantization parameter for a second block. A predicted quantization parameter calculating unit (114) uses quantization parameters of one or more third blocks that are adjacent to the second block to calculate a predicted quantization parameter for the second block. When the third blocks that are adjacent to the second block are in a position beyond the boundary of the first block, the predicted quantization parameter calculating unit (114) uses the quantization parameter of a fourth block, which was encoded before the second block, to calculate the predicted quantization parameter for the second block.

MOVING IMAGE ENCODING APPARATUS, MOVING IMAGE ENCODING METHOD AND MOVING IMAGE ENCODING PROGRAM

PROBLEM TO BE SOLVED: To provide a technique for increasing the efficiency of motion-compensated prediction by improving the quality of predicted images while suppressing an increase in computational complexity. SOLUTION: A motion vector detection section detects a motion vector of a block to be encoded with respect to a first reference image. A first reference image synthesis section synthesizes a first reference block extracted from the first reference image via the motion vector and a given region of at least one other reference image to generate a first synthetic reference block. A second reference image synthesis section specifies and synthesizes a second reference block and the given region of the reference image used for the synthesis, via information required for synthetic reference block generation from encoded regions, to generate a second synthetic reference block. An encoding section encodes a prediction difference block resulting from the subtraction from the block to be encoded ...

VIDEO SIGNAL CODING METHOD AND DEVICE

PROBLEM TO BE SOLVED: To improve the image quality by deciding a object code quantity in the unit of a prescribed image area based on a generated code quantity that depends on a quantization width, a generated code quantity that is independent thereof, and a total object code quantity and applying variable control to the quantization width so as to approach the generated code quantity to the object code quantity thereby preventing local deficiency of the shared code quantity. SOLUTION: A 1st coding circuit applies quantization and coding to a received image based on a fixed quantization width to generate a 1st generated code quantity that depends on the quantization width and a 2nd code quantization that is independent thereof respectively in a prescribed unit and they are stored in a storage circuit 2. A 2nd coding circuit 4 applies quantization with variable quantization width an coding to image data from an image delay buffer 3 and uses information of results of 1st and 2nd code quantities ...

Moving image encoding device, moving image encoding method

A video coding device for using motion compensated prediction to code video in block units that partition the respective pictures of the video, wherein a prediction mode decision unit (109) derives motion information from a coding-target block. When the coding-target block is a prescribed size or smaller, a motion compensated prediction unit (108) changes the derived motion information for this prescribed size or smaller coding-target block. The motion compensated prediction unit (108) generates a coding-target block prediction signal in accordance with motion compensated prediction by using the derived motion information when the coding-target block is larger than the prescribed size, and by using the changed motion information when the coding-target block is the prescribed size or smaller.

MOTION VECTOR PREDICTING METHOD

PROBLEM TO BE SOLVED: To provide a motion vector predicting method not remarkably lowering a coding efficiency of the motion vector. SOLUTION: The motion vector predicting method includes: determining at least not less than one candidate motion vectors out of not less than three candidate motion vectors in response to the size of peripheral predicting block of the coding objective block; and introducing a predicting motion vector with the use of not less than three candidate motion vectors. This causes no remarkable lower coding efficiency of the motion vector. The predicting motion vector may be introduced with the use of a median filter. COPYRIGHT: (C)2011,JPO&INPIT ...

IMAGE-CODING DEVICE

PROBLEM TO BE SOLVED: To provide an image-coding device that can more efficiently code images in without visual nonconformities. SOLUTION: A reference image generating section 131 generates reference images of a plurality of predictive modes. An error-evaluating value calculating section 132 calculates a first error evaluating value. A reference image generating section 134 generates a reference image, based on the incidental information of an adjacent macro block. Another error evaluating value calculating section 135 calculates a second error-evaluating value, by using the reference image generated by the reference image generating section 134 and an input image. Prediction mode discriminating sections 133 and 136 discriminate a prediction mode, based on the first and second error evaluating values. When the discriminated prediction mode is a mode for generating a reference image, based on the incidental information of the adjacent macro block, the incidental information of the present ...

DELIVERY ACCEPTING METHOD

PROBLEM TO BE SOLVED: To provide a package collection method by which a package can be collected from an individual's house or a visited place. SOLUTION: A requester requests selection of an agent from an exclusive acceptance terminal 290 (or a personal computer) to a home delivery acceptance service center 130 by selectively inputting a variety of information from the terminal 290 via the Internet 120. At the center 130 by which the request is accepted, a home delivery company conforming to needs is selected and package collection request information is transmitted to the company. The home delivery company gives a package collection instruction to a package collection vehicle 180. On the other hand, at the exclusive operation terminal 290, a home delivery slip is printed from an attached labeller 299 and the slip is stuck to the object package and the package becomes stand-by for being collected. COPYRIGHT: (C)2003,JPO ...

MULTI-VIEWPOINT IMAGE TRANSMITTING METHOD, MULTI-VIEWPOINT IMAGE TRANSMITTING DEVICE, AND MULTI-VIEWPOINT IMAGE TRANSMITTING PROGRAM

PROBLEM TO BE SOLVED: To solve the problem that when a multi-viewpoint image signal is encoded and transmitted, a buffer is required for sequentially sorting the signals by frame or field and delay is therefore caused since the multi-viewpoint image signal is sorted in the order of encoding and transmitted as an image signal of one system. SOLUTION: Viewpoint images of respective viewpoints are suitably input to and stored in a sort buffer 105 without being delayed in both a method of inputting the viewpoint images of the respective viewpoints in parallel through respective independent channels and a method of inputting the viewpoint images of the respective viewpoints in series as an interleaved signal through one channel. Consequently, it is not required to sequentially sort the images by frame or field before being encoded unlike the conventional stereoscopic image encoding method and device, and an image buffer for sequentialization is not provided and the encoded data can be transmitted ...

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.

Moving picture encoding device, moving picture encoding method and moving picture encoding program as well as moving picture decoding device, moving picture decoding method and moving picture decoding program

A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list.

IMAGE DECODER, IMAGE ENCODING/DECODING METHOD, AND PROGRAM OF THE SAME

PROBLEM TO BE SOLVED: To receive or read multi-viewpoint images efficiently. SOLUTION: A disassembler 301 disassembles an encoded stream containing image encoded data where a plurality of images respectively made from a plurality of different visual points are encoded, depth information encoded data where depth information indicative of a depth of specific space from at least one or more visual points is encoded, and parameter information encoded data where parameter information including visual point information for specifying a plurality of visual points, a basis of the plurality of images and the depth information, is encoded. An image signal decoder 307 decodes the image encoded data disassembled by the disassembler 301 to restore the plurality of images. A depth information decoder (for example, depth signal decoder 309) decodes the depth information encoded data disassembled by the disassembler 301 to restore the depth information. A parameter information decoder 320 decodes the parameter ...

Video encoding device, video encoding method, video encoding program, transmission device, transmission method, and transmission program

To increase the encoding efficiency while limiting the memory access amount of a reference picture in performing motion compensation prediction. A motion compensation predicting unit 112 generates a predicted signal for a predicted block to be encoded, by motion compensation using derived motion information. An encoding block control parameter generating unit 122 generates a first control parameter indicating whether to permit motion compensation prediction for a predicted block size of a first size, and a second control parameter indicating a second size that forbids bi-predictive motion compensation for a predicted block size less than or equal to the second size. A block structure/prediction mode information supplementary information encoding unit 118 encodes information used in motion compensation prediction, including the first and second control parameters. The motion compensation prediction unit 112 performs motion compensation prediction on the basis of the first and second control ...

INTER-MOTION-COMPENSATING-FRAME ENCODER

PURPOSE: To obtain an inter motion-compensating-frame encoder which enables the high speed of an encoding processing by obtaining a parameter which controls the filter processing of an input picture or a quantization step after an orthogonal transformation, before a movement vector is searched. CONSTITUTION: This device is equipped with a hierarchical motion detecting means 21 which outputs intermediate data 21c concerned with a moving amount in the arithmetic operating process of the detection of the moving amount, a quantization parameter designating means 36 which designates the quantization parameter of a quantizing means 34 based on the intermediate data 21c, and a band control parameter designating means 35 which varies the characteristic of a filter means 31. COPYRIGHT: (C)1992,JPO&Japio ...

Image encoding apparatus, image encoding method, image encoding program

In this image encoding device, which encodes an image and encodes a differential quantization parameter at a quantization encoding block unit that is a management unit of a quantization parameter resulting from splitting the image, a quantization parameter calculation unit (110) derives the quantization parameter of the quantization encoding block that is to be encoded. A predicted quantization parameter derivation unit (114) derives a predicted quantization parameter using the quantization parameters of a plurality of quantization encoding blocks that precede, in the order of encoding, the quantization encoding block that is to be encoded. A differential quantization parameter generation unit (111) derives the differential quantization parameter of the quantization encoding block that is to be encoded by means of the difference between the predicted quantization parameter and the quantization parameter of the quantization encoding block that is to be encoded. A first encoded bitstream ...

Moving picture decoding device, moving picture decoding method, and recording medium

To satisfy the need of compressing encoded information and reducing the entire code amount in an image encoding method using motion compensation prediction. A predicted motion vector candidate generation part 220 performs prediction from one of an encoded block adjacent to an encoding object block within the same picture as the encoding object block and an encoded block at the same position as the encoding object block or at a peripheral position within a picture different from the encoding object block, and generates a plurality of predicted motion vector candidates. When a predicted motion vector from a time direction predicted from the encoded block at the same position as the encoding object block or at the peripheral position within the picture different from the encoding object block is predicted from a motion vector crossing an encoding object image on a time base, the priority order of the predicted motion vector from the time direction is raised and it is registered in a predicted ...

PICTURE CODING DEVICE

PROBLEM TO BE SOLVED: To solve the problem that over flow and under flow of a virtual buffer occur since the compression rate becomes high, the influence rate of disturbances becomes large and absorption of it becomes difficult due to the deterioration of control efficiency at the time of performing a coding processing with a low bit rate. SOLUTION: In a picture coding device, an activity detection circuit 201 in an adaptive quantization circuit performing an adaptive quantization processing changing a quantization step in a quantization circuit into a block unit in accordance with a feature amount in a block obtains activity at every macro block, which is a local information amount, from an input digital picture signal. A frame activity calculation circuit 203 calculates the average of respective frames of activity and minimum activity from a minimum activity calculation circuit 202. A quantization step calculation circuit 204 calculates the quantization scale obtained by variably controlling ...

BILDKODIERUNGSGERÄT, BILDDEKODIERUNGSGERÄT, BILDKODIERUNGSMETHODE UND BILDDEKODIERUNGSMETHODE

Ein Bildkodierungsgerät, das Folgendes umfasst: eine Disparitätsvektor-Detektionseinheit (103) zum Abrufen eines Signals mit hoher Korrelation mit einem verschlüsselnden Zielblock und zur Erfassung des Signals mit dieser hohen Korrelation, und einen Disparitätsvektor, der eine Disparität in einem Bildschirm des verschlüsselnden Zielblocks ist, indem ein lokal entschlüsseltes Bild eines Blocks in demselben Bildsignal verwendet wird, das zuvor in Bezug auf den verschlüsselnden Zielblock verschlüsselt war; und eine Disparitätsvorhersage-Signalerzeugungseinheit (104) zur Erzeugung eines Vorhersagesignals in Einklang mit dem Disparitätsvektor. Die Disparitätsvektor-Detektionseinheit (103) ermittelt ein Signal, das durch die Invertierung eines Vorhersagesignals erfasst wird, und das in dem Disparitätsvektor in mindestens eine der horizontalen und vertikalen Richtungen markiert wird, und ein entsprechendes Vorhersagesignal und Informationen erkennt, die einen Disparitätsvektor und eine Inversionsrichtung ...

Image encoding apparatus, image encoding method, image encoding program

In this image encoding device, which encodes an image and encodes a differential quantization parameter at a quantization encoding block unit that is a management unit of a quantization parameter resulting from splitting the image, a quantization parameter calculation unit (110) derives the quantization parameter of the quantization encoding block that is to be encoded. A predicted quantization parameter derivation unit (114) derives a predicted quantization parameter using the quantization parameters of a plurality of quantization encoding blocks that precede, in the order of encoding, the quantization encoding block that is to be encoded. A differential quantization parameter generation unit (111) derives the differential quantization parameter of the quantization encoding block that is to be encoded by means of the difference between the predicted quantization parameter and the quantization parameter of the quantization encoding block that is to be encoded. A first encoded bitstream ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block. 1. A moving picture coding device that codes moving pictures in units of a block by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a quantization parameter calculation unit configured to calculate a quantization parameter of the second block;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block;a differential quantization parameter generation unit configured to generate a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter of the second block; anda coding unit configured to code the differential quantization parameter of the second block, whereinthe predictive quantization parameter deriving unit sets the ...

IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND IMAGE DECODING PROGRAM

PROBLEM TO BE SOLVED: To improve compression efficiency of a code amount in an image encoding system using motion compensated prediction based on geometrical conversion. SOLUTION: A geometrical conversion motion compensated prediction unit 205 generates a prediction signal from motion vectors of representative pixels between a target block in a target image and a reference block in a reference image having geometrical conversion relation with the target block, motion vectors of pixels other than the representative pixels calculated by interpolation using the motion vectors of the representative pixels, and an image signal of the reference block. A motion vector calculation unit 215 calculates a prediction motion vector of a representative pixel corresponding to a certain vertex in the target block by adaptively selecting the value of a motion vector of a representative pixel corresponding to an adjacent vertex of an adjacent block or a motion vector of the adjacent block and the value of ...

Verfahren zur Kompression von bewegten Bildsignalen nach dem Zeilensprungverfahren

High-efficiency coding device for picture signals

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block. 1. A moving picture decoding device that decodes a bit stream in which moving pictures are coded by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a decoding unit configured to extract a differential quantization parameter of the second block by decoding the bit stream;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block; anda quantization parameter generation unit configured to generate a quantization parameter of the second block by adding the differential quantization parameter of the second block and the predictive quantization parameter of the second block, whereinthe predictive quantization parameter deriving unit sets the quantization parameter of the third block as a ...

Verfahren zur Kompression von bewegten Bildsignalen nach dem Zeilensprungverfahren

Moving image decoding apparatus, moving image decoding method, moving image decoding program, receiving apparatus, receiving method and receiving program

畫面間預測資訊導出部(104)，係根據與編碼對象之預測區塊同一圖像內的編碼對象之預測區塊之鄰近的已編碼之預測區塊的畫面間預測資訊、和與編碼對象之預測區塊不同之已編碼圖像內的預測區塊的畫面間預測資訊，導出畫面間預測資訊之候補。畫面間預測資訊導出部(104)，係從已被導出之畫面間預測資訊之候補，決定出編碼對象之預測區塊的畫面間預測時所使用的畫面間預測資訊之候補。第2編碼位元列生成部(110)，係將前記決定部所決定之畫面間預測資訊之候補加以表示的索引，基於畫面間預測資訊之候補數而予以編碼。

Video encoding device, video encoding method, and video encoding program

A video encoding device that further divides a first block, obtained by dividing each picture of a video by a given size, into one or more second blocks, and then encodes the video in block units, wherein a quantization parameter calculating unit (110) calculates a quantization parameter for a second block. A predicted quantization parameter calculating unit (114) uses quantization parameters of one or more third blocks that are adjacent to the second block to calculate a predicted quantization parameter for the second block. When the third blocks that are adjacent to the second block are in a position beyond the boundary of the first block, the predicted quantization parameter calculating unit (114) uses the quantization parameter of a fourth block, which was encoded before the second block, to calculate the predicted quantization parameter for the second block.

MOVING IMAGE CODER, MOVING IMAGE DECODER, MOVING IMAGE CODING METHOD, AND MOVING IMAGE DECODING METHOD

PROBLEM TO BE SOLVED: To solve the following problem: it is impossible to efficiently code motion vector information to be used for motion compensation prediction, conventionally. SOLUTION: A moving image coder includes: an ME part 113 which detects a motion vector between a block to be coded and a locally decoded image being the already coded result in the unit of a block; a predictive vector selection part 116 which uses the detected motion vector and a motion vector detected in an already coded block adjacent to the block to be coded to calculate the predictive value of the motion vector of the target block while performing switching among predictive value generation methods; and a vector prediction means-switching information-coding part 119 which codes positional information with predictive value generation method switched and codes block position difference information of switching positions; and a multiplexing part 120 which multiplexes the coded positional information and block ...

Motion picture decoding apparatus, motion picture decoding method, motion picture decoding program

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moving picture decoding method, and moving picture decoding program

In a moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture, a prediction mode determiner derives motion information of a coding target block. A motion compensation predictor changes the derived motion information for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size. The motion compensation predictor constructs a prediction signal of the coding target block through the motion compensation prediction using the derived motion information when the coding target block has a size larger than the certain size or using the changed motion information when the coding target block has the size smaller than or equal to the certain size.

IMAGE ENCODING DEVICE, IMAGE DECODING DEVICE, IMAGE ENCODING METHOD, AND IMAGE DECODING METHOD

A disparity vector detection unit retrieves a signal having a high correlation with an encoding target block and acquire the signal having the high correlation and a disparity vector which is a disparity in a screen of the encoding target block by using a local decoded image of a block in the same image signal which was previously encoded, with respect to the encoding target block. A disparity prediction signal generation unit generates a prediction signal in accordance with the disparity vector. The disparity vector detection unit includes a DC calculation unit operative to predict a DC component of an image signal of the encoding target block from a neighboring decoded image, and a disparity reference DC calculation unit operative to calculate a DC component of a prediction signal represented by the disparity vector. 1. An image encoding device dividing an image signal into a block constituted by a plurality of pixels and encoding the image signal by the divided block units , comprising:a disparity vector detection unit operative to retrieve a signal having a high correlation with an encoding target block and acquire the signal having the high correlation and a disparity vector which is a disparity within a screen of the encoding target block by using a local decoded image of a block within the same image signal which has already been encoded with respect to the encoding target block; anda disparity prediction signal generation unit operative to generate a prediction signal in accordance with the disparity vector, whereinthe disparity vector detection unit includes a DC calculation unit operative to predict a DC component of an image signal of the encoding target block from a neighboring decoded image, and a disparity reference DC calculation unit operative to calculate a DC component of a prediction signal represented by the disparity vector, and compensates a difference between the DC component predicted from the neighboring decoded image and the DC component of ...

Video coding apparatus, video coding method and video coding program, and video decoding apparatus, video decoding method and video decoding program

A motion vector detector detects a motion vector from a first reference image for a coding target block. A multiple reference image composition unit creates a composite reference block that a first reference block extracted from the first reference image using the motion vector has been composited with a predetermined region of at least one of other reference images. Setting the composite reference block as a prediction block, an entropy encoder encodes a prediction difference block that the prediction block has been subtracted from the coding target block.

MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM

A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. 1. A moving picture encoding device with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating unit configured to, when a block size of blocks to be encoded is larger than a predetermined threshold size, derive motion vector predictor candidates from blocks in an encoded image, and when the block size of the blocks to be encoded is smaller than or equal to the predetermined threshold size, configured not to derive the motion vector predictor candidates.2. A moving picture decoding device with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating unit configured to, when a block size of blocks to be decoded is larger than a predetermined threshold size, derive motion vector predictor candidates from blocks in a decoded image, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to derive the motion vector predictor candidates.3. A moving picture decoding method with motion compensating prediction in units of block , comprising:a motion vector ...

DEVICE, METHOD, AND PROGRAM FOR PICTURE CODING, AND DEVICE, METHOD, AND PROGRAM FOR PICTURE DECODING

An intra prediction mode selecting unit selects an intra prediction mode for a block subject to coding. A most probable mode list construction unit constructs, using intra prediction modes for multiple reference blocks, a list of most probable modes having a certain number of elements for any block subject to coding, irrespective of the number of different intra prediction modes for multiple coded blocks. A most probable mode index calculating unit calculates, when the intra prediction mode for a block subject to coding is probable, information identifying the most probable mode according to the list. A non-probable mode index calculating unit calculates, when the intra prediction mode for a block subject to coding is not probable, information identifying the non-probable mode according to the list. 1. A picture coding device adapted to code , in units of blocks , a picture signal using an intra prediction mode selected from among a plurality of intra prediction modes and to code information identifying the selected intra prediction mode , the picture coding device comprising:an intra prediction mode selecting unit configured to select an intra prediction mode for a block subject to coding;an intra prediction mode storage unit configured to store intra prediction modes for coded blocks;a most probable mode list construction unit configured to derive, from the intra prediction mode storage unit, the intra prediction modes for a plurality of reference blocks used for intra prediction in the block subject to coding, and to construct a list of most probable modes that are used as candidates of the intra prediction mode for the block subject to coding, by referring to the derived intra prediction modes;a most probable mode determination flag calculating unit configured to calculate information indicating whether the intra prediction mode for the block subject to coding is probable or not probable;a most probable mode index derivation unit configured to derive, when the ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other. 1. A picture decoding device for decoding information regarding an intra-prediction mode in a prediction block unit and decoding picture signals including a brightness signal and a color-difference signal in a conversion block unit using intra-prediction , comprising:an intra-brightness prediction mode decoder that decodes a first syntax element regarding an intra-prediction mode of the brightness signal from a bitstream in which information regarding an intra-brightness prediction mode showing an intra-prediction method of a prediction block of a bright signal is coded and derives the intra-brightness prediction mode from the first syntax element;an intra-color-difference prediction mode decoder that decodes a second syntax element regarding an intra-color-difference prediction mode of the color-difference signal from the bitstream in which information regarding an intra-color-difference prediction mode showing an intra-prediction method of a prediction block of the color-difference signal is coded and derives a first intra-color-difference prediction mode from the second syntax element and the intra-brightness prediction mode;a brightness signal intra-predictor that predicts a brightness signal of a conversion block of the brightness signal from a surrounding brightness signal of the conversion block of the brightness signal, according to the intra- ...

MOVING PICTURE CODING APPARATUS, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority. 1. A moving picture coding device adapted to code moving pictures in units of blocks obtained by partitioning each picture of the moving pictures , comprising:a motion vector predictor candidate generation unit configured to derive one or more motion vector predictor candidates from motion vectors of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, and to add the derived motion vector predictor candidates in a motion vector predictor candidate list;a motion vector predictor selection unit configured to select a motion vector predictor from the motion vector predictor candidate list;a motion vector difference derivation unit configured to derive a motion vector difference by subtracting the selected motion vector predictor from the motion vector; anda coding unit configured to code index information indicating the motion vector predictor candidate selected in the motion vector predictor candidate list and the motion vector difference,wherein the motion vector predictor candidate ...

MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM

A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. 1. A moving picture decoding device with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating unit configured to, when a block size of blocks to be decoded is larger than a predetermined threshold size, include a motion vector predictor candidate derived from blocks in a decoded image into a motion vector predictor candidate list, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to include the motion vector predictor candidate into the motion vector predictor candidate list;a motion information candidate generating unit configured to, when the block size of blocks to be decoded is larger than the predetermined threshold size, include a motion information candidate derived from blocks in the decoded image into a motion information candidate list, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to include the motion information candidate into the motion information candidate list;a decoding unit configured to ...

MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM

A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. 1. A moving picture decoding device with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating unit configured to, when the block size of the blocks to be decoded is greater than or equal to a predetermined threshold size, check the plural candidate blocks in a decoded image whether it is intra mode by predetermined order and derive a motion vector predictor from the first block is not intra mode, and when the block size of the blocks to be decoded is smaller than the predetermined threshold size, configured not to derive a motion vector predictor.2. A moving picture decoding method with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating step of, when the block size of the blocks to be decoded is greater than or equal to a predetermined threshold size, checking the plural candidate blocks in a decoded image whether it is intra mode by predetermined order and deriving a motion vector predictor from the first block is not intra mode, and when the block size of the blocks to be decoded is smaller than the ...

PICTURE ENCODING DEVICE AND PICTURE ENCODING METHOD

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded. 1. A picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter , comprising:a quantization parameter derivation unit that derives a quantization parameter of a first quantization coding block;a prediction quantization parameter derivation unit that derives a prediction quantization parameter using the quantization parameters of two quantization coding blocks which precede the first quantization coding block in order of encoding;a difference quantization parameter derivation unit that derives a difference quantization parameter of the first quantization coding block, using a difference between the quantization parameter of the first quantization coding block and the prediction quantization parameter; andan encoder that encodes the difference quantization parameter,wherein the prediction quantization ...

Disc shaft center adjusting mechanism in gas turbine

In a disc axis adjusting mechanism in a gas turbine, the gas turbine has an exhaust gas diffuser provided between a casing wall and a bearing case which are connected to a downstream side of a turbine, a plurality of struts provided at intervals in a circumferential direction, and strut covers coupling an outer diffuser and an inner diffuser of the exhaust gas diffuser so as to cover the struts, and the mechanism comprises: a plurality of air introduction holes formed in the casing wall so as to allow the interior and exterior of the wall to communicate with each other; a sensor unit configured to detect a parameter corresponding to the thermal elongation of each of the struts; and a flow rate adjustor configured to adjust the flow rate of air flowing through each of the air introduction holes based on a detection value detected by the sensor unit.

MOVING PICTURE CODING APPARATUS, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority. 1. A moving picture coding device adapted to code moving pictures in units of blocks obtained by partitioning each picture of the moving pictures , by using motion compensation , comprising:a motion vector predictor candidate generation unit configured to derive a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and to add the derived motion vector predictor candidates in a motion vector predictor candidate list;a motion vector predictor selection unit configured to select a motion vector predictor from the motion vector predictor candidate list; anda coding unit configured to code information indicating a position of the motion vector predictor candidate selected in the motion vector predictor ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other. 1. A picture decoding device for decoding information regarding an intra-prediction mode in a prediction block unit and decoding picture signals including a brightness signal and a color-difference signal in a conversion block unit using intra-prediction , comprising:an intra-brightness prediction mode decoder that decodes a syntax element regarding an intra-prediction mode of the brightness signal from a bitstream in which information regarding an intra-brightness prediction mode showing an intra-prediction method of a prediction block of the bright signal is coded and derives the intra-prediction mode of the brightness signal;an intra-color-difference prediction mode decoder that decodes a syntax element regarding an intra-color-difference prediction mode of the color difference signal from the bitstream in which information regarding an intra-color-difference prediction mode showing an intra-prediction method of a prediction block of the color-difference signal is coded and derives a first intra-color-difference prediction mode by referring to the intra-brightness prediction mode;a brightness signal intra-predictor that predicts a brightness signal of a conversion block of the brightness signal from a surrounding brightness signal of the conversion block of the brightness signal, according to the intra-brightness prediction mode specified for each ...

PICTURE ENCODING DEVICE AND PICTURE ENCODING METHOD

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded. 1. A picture decoding device that decodes a picture and decodes a bitstream in which a difference quantization parameter is encoded in a unit of a quantization decoding block which is divided from the picture and is a management unit of a quantization parameter , comprising:a decoder that decodes the bitstream in the unit of the quantization decoding block and extracts a difference quantization parameter of a first quantization decoding block to be decoded;a prediction quantization parameter derivation unit that derives a prediction quantization parameter by averaging the quantization parameters of two quantization decoding blocks which precede the first quantization decoding block to be decoded in order of decoding; anda quantization parameter derivation unit that adds the difference quantization parameter of the first quantization decoding block to be decoded and the prediction quantization parameter to derive the quantization parameter of the first quantization ...

PICTURE ENCODING DEVICE AND PICTURE ENCODING METHOD

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded. 1. A picture decoding device that decodes a picture and decodes a bitstream in which a difference quantization parameter is encoded in a unit of a quantization decoding block which is divided from the picture and is a management unit of a quantization parameter , comprising:a decoder that decodes the bitstream in the unit of the quantization decoding block and extracts a difference quantization parameter of a first quantization decoding block to be decoded;a prediction quantization parameter derivation unit that derives a prediction quantization parameter using the quantization parameters of two quantization decoding blocks which precede the first quantization decoding block to be decoded in order of decoding; anda quantization parameter derivation unit that adds the difference quantization parameter of the first quantization decoding block to be decoded and the prediction quantization parameter to derive the quantization parameter of the first quantization decoding ...

PICTURE ENCODING DEVICE AND PICTURE ENCODING METHOD

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded. 1. A picture decoding device that decodes a picture and decodes a bitstream in which a difference quantization parameter is encoded in a unit of a quantization decoding block which is divided from the picture and is a management unit of a quantization parameter , comprising:a decoder that decodes the bitstream in the unit of the quantization decoding block and extracts a difference quantization parameter of a first quantization decoding block to be decoded;a prediction quantization parameter derivation unit that derives a prediction quantization parameter by averaging the quantization parameters of two quantization decoding blocks which precede the first quantization decoding block to be decoded in order of decoding; anda quantization parameter derivation unit that adds the difference quantization parameter of the first quantization decoding block to be decoded and the prediction quantization parameter to derive the quantization parameter of the first quantization ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other. 1. A picture decoding device for decoding information regarding an intra-prediction mode in a prediction block unit and decoding picture signals including a brightness signal and a color-difference signal in a conversion block unit using intra-prediction , comprising:an bitstream decoder that decodes a first syntax element regarding an intra-prediction mode of the brightness signal from a bitstream in which information regarding an intra-brightness prediction mode showing an intra-prediction method of a prediction block of the bright signal is coded and derives the intra-brightness prediction mode from the first syntax element, and decodes a second syntax element regarding an intra-color-difference prediction mode of the color difference signal from the bitstream in which information regarding an intra-color-difference prediction mode showing an intra-prediction method of a prediction block of the color-difference signal is coded and derives a first intra-color-difference prediction mode from the second syntax element and the intra-brightness prediction mode;a brightness signal intra-predictor that predicts a brightness signal of a conversion block of the brightness signal from a surrounding brightness signal of the conversion block of the brightness signal, according to the intra-brightness prediction mode specified for each prediction block of the ...

MOVING PICTURE CODING APPARATUS, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING APPARATUS, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority. 1. A moving picture coding device adapted to code moving pictures in units of blocks obtained by partitioning each picture of the moving pictures , comprising:a motion vector predictor candidate generation unit configured to derive one or more motion vector predictor candidates from motion vectors of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, and to add the derived motion vector predictor candidates in a motion vector predictor candidate list;a motion vector predictor selection unit configured to select a motion vector predictor from the motion vector predictor candidate list;a motion vector difference derivation unit configured to derive a motion vector difference by subtracting the selected motion vector predictor from the motion vector; anda coding unit configured to code index information indicating the motion vector predictor candidate selected in the motion vector predictor candidate list and the motion vector difference,wherein the motion vector predictor candidate ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other. 1. A picture decoding device for decoding information regarding an intra-prediction mode in a prediction block unit and decoding picture signals including a brightness signal and a color-difference signal in a conversion block unit using intra-prediction , comprising:an intra-brightness prediction mode decoder that decodes a first syntax element regarding an intra-prediction mode of the brightness signal from a bitstream in which information regarding an intra-brightness prediction mode showing an intra-prediction method of a prediction block of a bright signal is coded and derives the intra-brightness prediction mode from the first syntax element;an intra-color-difference prediction mode decoder that decodes a second syntax element regarding an intra-color-difference prediction mode of the color-difference signal from the bitstream in which information regarding an intra-color-difference prediction mode showing an intra-prediction method of a prediction block of the color-difference signal is coded and derives a first intra-color-difference prediction mode from the second syntax element and the intra-brightness prediction mode;a brightness signal intra-predictor that predicts a brightness signal of a conversion block of the brightness signal from a surrounding brightness signal of the conversion block of the brightness signal, according to the intra- ...

Moving picture decoding device, moving picture decoding method and moving picture decoding program

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation uni codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority. 1. A moving picture decoding device adapted to decode a bitstream in which moving pictures are coded in units of blocks obtained by partitioning each picture of the moving pictures , comprising:a motion vector predictor candidate generation unit configured to derive one or more motion vector predictor candidates from motion vectors of decoded prediction blocks neighboring a prediction block subject to decoding within the same picture as the prediction block subject to decoding, and to add the derived motion vector predictor candidates in a motion vector predictor candidate list,wherein the motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of the decoded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, such that the motion vector predictor candidate generation unit processes, in a predetermined order, prediction blocks in a block group neighboring to the left and in a block group neighboring above, said ...

Moving picture coding device, moving picture coding method, and moving picture coding program

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

Moving picture coding device, moving picture coding method, moving picture coding program, transmitting device, transmitting method and transmitting program, and moving picture decoding device, moving picture decoding method, moving picture decoding program, receiving device, receiving method and receiving program

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation uni codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM

A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. 1. A moving picture decoding device with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating unit configured to, when a block size of blocks to be decoded is larger than a predetermined threshold size, include a motion vector predictor candidate derived from blocks in a decoded image into a motion vector predictor candidate list, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to include the motion vector predictor candidate into the motion vector predictor candidate list;a motion information candidate generating unit configured to, when the block size of blocks to be decoded is larger than the predetermined threshold size, include a motion information candidate derived from blocks in the decoded image into a motion information candidate list, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to include the motion information candidate into the motion information candidate list;a decoding unit configured to ...

MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM AS WELL AS MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM

A first vector predictor candidate list generating unit generates a first motion vector predictor candidate list from motion vectors of encoded neighboring blocks to blocks to be encoded. A second vector predictor candidate list generating unit generates a second motion vector predictor candidate list from motion vectors of blocks at the same positions as the blocks to be encoded in an encoded image and neighboring blocks to the blocks at the same positions. A combination determining unit determines whether to generate a third vector predictor candidate list combining the first and second vector predictor candidate lists by comparison of a block size of the blocks to be encoded and a threshold size. A vector predictor candidate list deciding unit generates the third vector predictor candidate list from the first vector predictor candidate list. 1. A moving picture decoding device with motion compensating prediction in units of block , comprising:a motion vector predictor candidate generating unit configured to, when a block size of blocks to be decoded is larger than a predetermined threshold size, include a motion vector predictor candidate derived from blocks in a decoded image into a motion vector predictor candidate list, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to include the motion vector predictor candidate into the motion vector predictor candidate list;a motion information candidate generating unit configured to, when the block size of blocks to be decoded is larger than the predetermined threshold size, include a motion information candidate derived from blocks in the decoded image into a motion information candidate list, and when the block size of the blocks to be decoded is smaller than or equal to the predetermined threshold size, configured not to include the motion information candidate into the motion information candidate list;a decoding unit configured to ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block. 1. A moving picture coding device that codes moving pictures in units of a block by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a quantization parameter calculation unit configured to calculate a quantization parameter of the second block;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block;a differential quantization parameter generation unit configured to generate a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter of the second block; anda coding unit configured to code the differential quantization parameter of the second block, whereinthe predictive ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block. 1. A moving picture coding device that codes moving pictures in units of a block by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a quantization parameter calculation unit configured to calculate a quantization parameter of the second block;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of blocks that are neighboring to the second block;a differential quantization parameter generation unit configured to generate a differential quantization parameter of the second block based on a difference between the quantization parameter of the second block and the predictive quantization parameter of the second block; anda coding unit configured to code the differential quantization parameter of the second block, whereinthe predictive quantization parameter deriving unit derives the predictive quantization parameter based ...

Moving picture coding device, moving picture coding method, moving picture coding program, transmitting device, transmitting method and transmitting program, and moving picture decoding device, moving picture decoding method, moving picture decoding program, receiving device, receiving method and receiving program

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation uni codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other. 1. A picture decoding device for decoding information regarding an intra-prediction mode in a prediction block unit and decoding picture signals including a brightness signal and a color-difference signal in a conversion block unit using intra-prediction , comprising:an intra-brightness prediction mode decoder that decodes a first syntax element regarding an intra-prediction mode of the brightness signal from a bitstream in which information regarding an intra-brightness prediction mode showing an intra-prediction method of a prediction block of a bright signal is coded and derives the intra-brightness prediction mode from the first syntax element;an intra-color-difference prediction mode decoder that decodes a second syntax element regarding an intra-color-difference prediction mode of the color-difference signal from the bitstream in which information regarding an intra-color-difference prediction mode showing an intra-prediction method of a prediction block of the color-difference signal is coded and derives a first intra-color-difference prediction mode from the second syntax element and the intra-brightness prediction mode;a brightness signal intra-predictor that predicts a brightness signal of a conversion block of the brightness signal from a surrounding brightness signal of the conversion block of the brightness signal, according to the intra- ...

PICTURE DECODING DEVICE, PICTURE DECODING METHOD AND PICTURE DECODING PROGRAM

In a picture coding device for coding picture signals including a brightness signal and a color-difference signal in a block unit using intra-prediction and coding information regarding an intra-prediction mode, when aspect ratios of pixels of the brightness signal and the color-difference signal are different from each other, a bitstream generator converts a mode number of a first intra-color-difference prediction mode used when the aspect ratios are equal to each other into a scaled mode number and derives a second intra-color-difference prediction mode used when the aspect ratios are different from each other. 1. A picture decoding device for decoding information regarding an intra-prediction mode in a prediction block unit and decoding picture signals including a brightness signal and a color-difference signal in a conversion block unit using intra-prediction , comprising:an intra-brightness prediction mode decoder that decodes a first syntax element regarding an intra-prediction mode of the brightness signal from a bitstream in which information regarding an intra-brightness prediction mode showing an intra-prediction method of a prediction block of a bright signal is coded and derives the intra-brightness prediction mode from the first syntax element;an intra-color-difference prediction mode decoder that decodes a second syntax element regarding an intra-color-difference prediction mode of the color-difference signal from the bitstream in which information regarding an intra-color-difference prediction mode showing an intra-prediction method of a prediction block of the color-difference signal is coded and derives a first intra-color-difference prediction mode from the second syntax element and the intra-brightness prediction mode;a brightness signal intra-predictor that predicts a brightness signal of a conversion block of the brightness signal from a surrounding brightness signal of the conversion block of the brightness signal, according to the intra- ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block. 1. A moving picture decoding device that decodes a bit stream in which moving pictures are coded by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a decoding unit configured to extract a differential quantization parameter of the second block by decoding the bit stream;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block; anda quantization parameter generation unit configured to generate a quantization parameter of the second block by adding the differential quantization parameter of the second block and the predictive quantization parameter of the second block, whereinthe predictive quantization parameter deriving unit sets the quantization parameter of the third block as a ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that further divides a first block acquired by dividing each picture of a moving picture into a predetermined size into one or a plurality of second blocks and codes the moving picture in units of blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block by using the quantization parameter of one or a plurality of third blocks that are neighboring to the second block. The predictive quantization parameter deriving unit derives the predictive quantization parameter of the second block by using a quantization parameter of a fourth block coded before the second block in a case where the third block neighboring to the second block is located at a position beyond a boundary of the first block. 1. A moving picture coding device that codes moving pictures in units of a block by partitioning a first block , which is obtained by partitioning each picture of the moving pictures into predetermined sizes , into one or a plurality of second blocks , the device comprising:a quantization parameter calculation unit configured to calculate a quantization parameter of the second block;a predictive quantization parameter deriving unit configured to derive a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block;a differential quantization parameter generation unit configured to generate a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter of the second block; anda coding unit configured to code the differential quantization parameter of the second block, whereinthe predictive quantization parameter deriving unit sets the ...

VIDEO IMAGE CODING DATA TRANSMITTER, VIDEO IMAGE CODING DATA TRANSMISSION METHOD, VIDEO IMAGE CODING DATA RECEIVER, AND VIDEO IMAGE CODING DATA TRANSMISSION AND RECEPTION SYSTEM

A transmission rate acquisition unit acquires the transmission rate of a network. A predictive transmission structure setting unit sets a transmission structure including a basic hierarchy and a supplementary hierarchy. A first transmission unit transmits basic video image coding data of the basic hierarchy. A memory unit stores supplementary video image coding data of the supplementary hierarchy. A second transmission unit transmits the supplementary video image coding data stored in the memory unit. A transmission control unit controls the second transmission unit according to the transmission rate. 1. A video image coding data transmitter comprising:a transmission rate acquisition unit that acquires the transmission rate of a network;a transmission structure setting unit that sets a transmission structure including a basic hierarchy and a supplementary hierarchy;a first transmission unit that transmits basic video image coding data of the basic hierarchy;a memory unit that stores supplementary video image coding data of the supplementary hierarchy;a second transmission unit that transmits the supplementary video image coding data stored in the memory unit; anda transmission control unit that controls the second transmission unit according to the transmission rate.2. The video image coding data transmitter according to claim 1 , further comprising:a video image coding data analysis unit that distinguishes the basic video image coding data of the basic hierarchy from the supplementary video image coding data of the supplementary hierarchy that are included in video image coding data based on the transmission structure.3. The video image coding data transmitter according to claim 1 ,wherein the transmission structure setting unit sets the proportion of the basic hierarchy to the supplementary hierarchy such that the ratio of the basic hierarchy is increased as the transmission rate becomes larger and the ratio of the supplementary hierarchy is increased as the ...

MOVING PICTURE CODING DEVICE, MOVING PICTURE CODING METHOD, AND MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD, AND MOVING PICTURE DECODING PROGRAM

In a moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture, a prediction mode determiner derives motion information of a coding target block. A motion compensation predictor changes the derived motion information for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size. The motion compensation predictor constructs a prediction signal of the coding target block through the motion compensation prediction using the derived motion information when the coding target block has a size larger than the certain size or using the changed motion information when the coding target block has the size smaller than or equal to the certain size. 1. A moving picture coding device that codes a moving picture using motion compensation prediction in units of blocks acquired by dividing each picture of the moving picture , comprising:a motion information deriver that derives motion information of a coding target block;a motion information changer that changes the motion information derived by the motion information deriver for the coding target block having a size smaller than or equal to a certain size when the coding target block has the size smaller than or equal to the certain size; anda prediction signal constructor that constructs a prediction signal of the coding target block through the motion compensation prediction using the motion information derived by the motion information deriver when the coding target block has a size larger than the certain size or constructs a prediction signal of the coding target block through the motion compensation prediction immediately after changing the derived motion information using the motion information changed by the motion information changer when the coding target block has the size smaller than or equal to the certain ...

PICTURE CODING DEVICE, PICTURE CODING METHOD, AND PICTURE CODING PROGRAM, AND PICTURE DECODING DEVICE, PICTURE DECODING METHOD, AND PICTURE DECODING PROGRAM

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded. 1. A picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter , comprising:a quantization parameter derivation unit that derives a quantization parameter of a first quantization coding block;a prediction quantization parameter derivation unit that derives a prediction quantization parameter using the quantization parameters of two quantization coding blocks which precede the first quantization coding block in order of encoding;a difference quantization parameter derivation unit that derives a difference quantization parameter of the first quantization coding block, using a difference between the quantization parameter of the first quantization coding block and the prediction quantization parameter; andan encoder that encodes the difference quantization parameter.2. A picture decoding device that decodes ...

Moving picture coding device, moving picture coding method, and moving picture coding program, and moving picture decoding device, moviing picture decoding method, and moving picture decoding program

In a moving picture coding device that codes moving pictures in units of a block by partitioning a first block, which is obtained by partitioning each picture of the moving pictures into predetermined sizes, into one or a plurality of second blocks, a quantization parameter calculation unit calculates a quantization parameter of the second block. A predictive quantization parameter deriving unit derives a predictive quantization parameter of the second block using quantization parameters of a third block adjacent to the left of the second block and a fourth block adjacent to the top of the second block. A differential quantization parameter generation unit generates a differential quantization parameter of the second block from a difference between the quantization parameter of the second block and the predictive quantization parameter. A first bitstream generation unit codes the differential quantization parameter of the second block.

PICTURE ENCODING DEVICE AND PICTURE ENCODING METHOD

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded. 1. A picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter , comprising:a quantization parameter derivation unit that derives a quantization parameter of a first quantization coding block;a prediction quantization parameter derivation unit that derives a prediction quantization parameter using the quantization parameters of two quantization coding blocks which precede the first quantization coding block in order of encoding;a difference quantization parameter derivation unit that derives a difference quantization parameter of the first quantization coding block, using a difference between the quantization parameter of the first quantization coding block and the prediction quantization parameter; andan encoder that encodes the difference quantization parameter,wherein the prediction quantization ...

Moving picture decoding device, moving picture decoding method and moving picture decoding program

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation uni codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

Recording medium and image signal coder

(57)【要約】 【課題】 記録媒体に追加記録を行なう場合に、すでに 符号化された画像との連続性を保証し、かつ画質劣化の 少ない符号化処理を行なう。 【解決手段】 ディジタル化された画像信号に対して可 変長符号化処理を施し、その結果生成された情報を記録 媒体１６に記録する画像信号符号化装置において、符号 化開始時に記録媒体１６の所定のエリアに記録された制 御用パラメータを読み取り、その制御用パラメータを初 期パラメータとして符号化処理を行なわせ、かつ、符号 化終了時に記録媒体の所定のエリアに最終的な制御用パ ラメータを記録して符号化処理を終了させる符号化パラ メータ処理回路３２，３４を備えたことを特徴とする。

Video coding device, video coding method, video coding program, video decoding device, video decoding method, and video decoding program

Moving picture signal progressive coding system

A progressive coding system wherein a moving picture signal is separated into a low frequency component of a little luminance variation and a high frequency component of much luminance variation, and the components are respectively coded by motion compensated predictive coding. The high frequency component is motion-compensated according to a motion quantity of the low frequency component. The motion quantity is modified by a sampling ratio of the moving picture signal and low frequency component. The motion quantity can be detected based on the low frequency component in a present frame and those subjected to intraframe coding in previous and subsequent intraframes to the present frame. A predictve low frequency component is then obtained by motion compensation using the motion quantity according to time intervals of the low frequency components between the frames. A predictive high frequency component is also obtained like the predictive low frequency component referring to the time interval. A motion quantity of the moving picture signal is obtained for motion-compensating the low and high frequency components.

Edit device for image signal, coder and decoder

(57)【要約】 【課題】 従来の編集装置では、直交変換及び量子化処 理は処理前の情報からの劣化を伴うため、編集過程での 符号化・復号処理の反復により生じる誤差が増大する。 また、回路構成若しくは演算量の増大を招く。 【解決手段】 復号回路５３は復号テーブル５４を参照 して可変長若しくは固定長符号化された符号を復号し、 符号化を行った単位の符号化ユニット毎に量子化された ＤＣＴ係数を取り出す。アドレス制御回路５５は、再符 号化する際の符号化テーブル５６のアドレスを作成す る。特殊効果処理がネガ・ポジ変換の場合には、係数の 正負をひっくり返した値を用いてアドレスを算出するこ とにより実現できる。作成されたアドレスは、再符号化 回路５７に入力される。再符号化回路５７は、入力され たアドレスを用いて符号化テーブル５６から再符号化す る符号化ユニットを読み出す。

Image decoding device, image decoding method and image decoding program

Video coding apparatus, video coding method and video coding program, and video decoding apparatus, video decoding method and video decoding program

A motion vector detector detects a motion vector from a first reference image for a coding target block. A multiple reference image composition unit creates a composite reference block that a first reference block extracted from the first reference image using the motion vector has been composited with a predetermined region of at least one of other reference images. Setting the composite reference block as a prediction block, an entropy encoder encodes a prediction difference block that the prediction block has been subtracted from the coding target block.

Video coding device, video coding method, video coding program, video decoding device, video decoding method, and video decoding program

Moving picture coding apparatus, moving picture coding method, and moving picture coding program, and moving picture decoding apparatus, moving picture decoding method, and moving picture decoding program

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

Video coding device, video coding method, video coding program, video decoding device, video decoding method, and video decoding program

Provided is a video coding device with which each picture of a video is partitioned into a first block at a prescribed size which is further partitioned into one or a plurality of second blocks, and the video coded in block units. A quantization parameter computation unit (110) computes a second block quantization parameter. A predict quantization parameter derivation unit (114) derives a second block predict quantization parameter, using a quantization parameter of a third block which is adjacent to the left of the second block and a fourth block which is adjacent above the secondblock. A differential quantizationparameter generating unit (111) generates a second block differential quantization parameter from the difference of the second block quantization parameter and the predict quantization parameter. A first coding bit string generating unit (112) codes the second block differential quantization parameter.

Image encoding device and image encoding method

將影像進行編碼，並藉由以前記影像所分割而成的量化參數之管理單位亦即量化編碼區塊單位而將差分量化參數進行編碼的影像編碼裝置中，量化參數算出部(110)係導出編碼對象之量化編碼區塊的量化參數。預測量化參數導出部(114)，係使用相對於編碼對象之量化編碼區塊在編碼順序上較為前面的複數量化編碼區塊的量化參數，來導出預測量化參數。差分量化參數生成部(111)，係根據編碼對象之量化編碼區塊的量化參數與預測量化參數的差分，導出編碼對象之量化編碼區塊的差分量化參數。第1編碼位元列生成部(112)，係將編碼對象之量化編碼區塊的差分量化參數，予以編碼。

Moving picture decoding device, moving picture decoding method, and moving picture decoding program

A motion vector predictor candidate generation unit derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

Video coding device, video coding method, video coding program, video decoding device, video decoding method, and video decoding program

Image decoding device, image decoding method, and image decoding program

Image-encoding device, image-encoding method, and image-encoding program

【課題】イントラ予測を使用する画像符号化方式にて、きめ細かなイントラ予測を実現しつつ、符号量の圧縮効率を向上させる。 【解決手段】予測モード判定部２０２は、イントラ予測すべき複数の符号化対象ブロックを含む画像内の領域を、それぞれ複数の符号化対象ブロックを含む複数のグループに分割し、グループごとにそのグループに含まれる各符号化対象ブロックに対して共通のイントラ予測モードを設定する。符号化部は、予測モード判定部２０２により設定されたイントラ予測モードに応じたイントラ予測信号と、符号化対象ブロックの信号との差分によって生成される残差信号、および予測モードを示す信号を符号化する。 【選択図】図１

Image decoding device, image decoding method, and image decoding program

Moving image encoding device, moving image encoding method and moving image encoding program, as well as moving image decoding device, moving image decoding method and moving image decoding program

A motion vector predictor candidate generation unit 120 derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit 120 determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

Moving image encoding device, moving image encoding method and moving image encoding program, as well as moving image decoding device, moving image decoding method and moving image decoding program

A motion vector predictor candidate generation unit 120 derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit 120 determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

clearance sensor

【課題】高温環境下で長期間の使用が可能なクリアランスセンサを提供すること。【解決手段】本開示に係るクリアランスセンサは、検出電極部と、検出電極部の外周面を覆って設けられる第１絶縁部と、第１絶縁部の外周面を覆って設けられるシールド電極部と、シールド電極部の外周面を覆って設けられる第２絶縁部と、第２絶縁部の外周面を覆って設けられる外壁部と、検出電極部の検出側端面に設けられて耐酸化性を有するボンドコートと、検出電極部の検出側端面においてボンドコートの表面上に設けられて、遮熱性を有するトップコートと、を備える。【選択図】図１

Patent TWI562617B

Moving picture signal progressive coding system

Moving image decoding device, moving image decoding method and moving image decoding program

Moving image encoder, moving image encoding method and moving image encoding program

預測運動向量候補生成部(120)，係根據與編碼對象預測區塊同一圖像內的編碼對象預測區塊所相鄰的第1已編碼之預測區塊、及與編碼對象預測區塊不同圖像內的位於與編碼對象預測區塊同一或周邊之位置的第2已編碼之預測區塊之任一者的運動向量，進行預測，導出複數預測運動向量之候補，將導出之預測運動向量之候補，登錄至預測運動向量候補清單。預測運動向量候補生成部(120)，係為了獲得已被設定之數目的預測運動向量之候補，而將第1已編碼之預測區塊之內的哪個預測區塊的運動向量是要當作用來導出預測運動向量之候補所需之運動向量的判定，賦予優先順序來進行之。

Layered coding and decoding methods, apparatuses, and programs

【課題】画像フレーム中の比較的大きな高周波数成分が連続した領域においては、ベースレイヤから得られる画像フレームでは十分な予測処理を行うことができないか、差分情報を表現するための情報量が増大する。 【解決手段】エンハンスメントレイヤエンコード部１０６は、映像入力からエンハンスメントレイヤの符号化対象となる空間解像度をもつ画像フレームと、空間インターポレーション部１０４及び空間高周波数成分推定拡大部１０５から取得した、ベースレイヤからの高周波数成分推定済み信号との相関を利用したエンハンスメントレイヤとしての符号化を行う。本発明は、ベースレイヤもしくはエンハンスメントレイヤから推定することができる高周波数成分を予め取り除くことにより、レイヤ間の差分を求めた際の符号化レイヤ間の予測誤差信号の信号振幅を抑制する。 【選択図】図１

Video-signal layered coding and decoding methods, apparatuses, and programs

An input video signal is encoded at a plurality of coding layers exhibiting different spatial resolutions. The input video signal is spatially scaled down to a resolution-lowered video signal that exhibits a resolution lower than the video signal. The resolution-lowered video signal is encoded by using a quantization parameter, with a decoding procedure, thus obtaining first coded data and a decoded signal. The decoded signal is spatially scaled up through a high-resolution procedure for controlling high-frequency components estimation depending on the quantization parameter, thus obtaining a high-resolution scaled-up video signal. The input video signal is encoded through inter-spatial resolution prediction using the high-resolution scaled-up video signal as a predictive signal, thus obtaining second coded data that exhibits a resolution higher than the resolution-lowered video signal.

Moving image decoder and moving image decoding method

【課題】参照画像メモリの容量削減のためにＡＣ係数を大きく量子化すると、参照画像が劣化し、符号化される動画像の画質の劣化が顕著になる。 【解決手段】動画像を動き補償して復号化する復号化装置において、参照画像記憶部は、圧縮部１２００とメモリ部１２０１と伸長部１２０２とを含み、参照画像をテンプレート符号化して記憶する。圧縮部１２００は、参照画像の画素値をブロック単位で直交変換し、係数のテンプレートとの差分、選択されたテンプレートを示すインデックス、および選択されたテンプレートを符号化し、メモリ部１２０１に書き出す。伸長部１２０２は、メモリ部１２０１から係数のテンプレートとの差分、使用されたテンプレートを示すインデックス、および使用されたテンプレートを読み出して、復号化し、係数と使用されたテンプレートの和をとって、ブロック単位で逆直交変換して画素値を得る。 【選択図】図１２

Picture encoding device and picture encoding method

There is provided a picture encoding device that encodes a picture and encodes a difference quantization parameter in a unit of a quantization coding block which is divided from the picture and is a management unit of a quantization parameter. A quantization parameter calculator derives a quantization parameter of the quantization coding block to be encoded. A prediction quantization parameter derivation unit derives a prediction quantization parameter using the quantization parameters of a plurality of quantization coding blocks which precede the quantization coding block to be encoded in order of encoding. A difference quantization parameter generator derives a difference quantization parameter of the quantization coding block to be encoded, using a difference between the quantization parameter of the quantization coding block to be encoded and the prediction quantization parameter. A first bitstream generator encodes the difference quantization parameter of the quantization coding block to be encoded.

Moving image encoding device, moving image encoding method and moving image encoding program, as well as moving image decoding device, moving image decoding method and moving image decoding program

A motion vector predictor candidate generation unit 120 derives a plurality of motion vector predictor candidates by prediction from first coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding, or from a second coded prediction block located at the same position as or in the neighborhood of the prediction block subject to coding in a picture different from that of the prediction block subject to coding, and adds the derived motion vector predictor candidates in a motion vector predictor candidate. The motion vector predictor candidate generation unit 120 determines, for the purpose of obtaining a predetermined number of motion vector predictor candidates, which of first coded prediction blocks provides the motion vector from which to derive the motion vector predictor candidate, organizing the blocks in the order of priority.

Mobile image decoding device and mobile image decoding method

DISPOSITIVO DE CODIFICAÇÃO DE IMAGEM MÓVEL, MÉTODO DE CODIFICAÇÃO DE IMAGEM MÓVEL E PROGRAMA DE CODIFICAÇÃO DE IMAGEM MÓVEL, ASSIM COMO DISPOSITIVO DE DECODIFICAÇÃO DE IMAGEM MÓVEL, MÉTODO DE DECODIFICAÇÃO DE IMAGEM MÓVEL E PROGRAMA DE DECODIFICAÇÃO DE IMAGEM MÓVEL. A invenção refere-se a uma unidade de geração de candidato de preditor de vetor de movimento 120 que deriva uma pluralidade de candidatos de preditor de vetor de movimento por predição de primeiros blocos de predição codificados vizinhos a um bloco de predição sujeito à codificação dentro da mesma imagem que o bloco de predição sujeito à codificação, ou de um segundo bloco de predição codificado localizado na mesma posição que ou na vizinhança do bloco de predição sujeito à codificação em uma imagem diferente daquela do bloco de predição sujeito à codificação, e adiciona os candidatos de preditor de vetor de movimento derivados em uma lista de candidatos de preditor de vetor de movimento. A unidade de geração de candidato de preditor de vetor de movimento 120 determina, para o propósito de obter um número predeterminado de candidatos de preditor de vetor de movimento, qual dos primeiros blocos de predição codificados provê o vetor de movimento do qual derivar o (...). MOBILE IMAGE ENCODING DEVICE, MOBILE IMAGE ENCODING METHOD AND MOBILE IMAGE ENCODING PROGRAM, AS WELL AS MOBILE IMAGE DECODING DEVICE, MOBILE IMAGE DECODING METHOD AND MOBILE IMAGE DECODING PROGRAM. The invention relates to a motion vector predictor candidate generation unit 120 which derives a plurality of motion vector predictor candidates by predicting first coded prediction blocks neighboring a prediction block subject to coding within the same image as the prediction block subject to coding, or of a second coded prediction block located at the same position as or in the vicinity of the prediction block subject to coding in a different image from that of the prediction block subject to coding, and adds the motion vector predictor ...

画像復号装置、画像復号方法、画像復号プログラム、受信装置、受信方法、及び受信プログラム

【課題】色差フォーマットに応じた輝度信号と色差信号のイントラ予測により画像信号を効率良く符号化したい。【解決手段】ブロック単位で輝度信号と色差信号とを含む画像信号をイントラ予測を用いて符号化するとともにイントラ予測モードに関する情報を符号化する画像符号化装置において、符号化ストリーム生成部１１３は、輝度信号と色差信号の画素のアスペクト比が異なる場合、アスペクト比が同じ場合に使用する第１イントラ色差予測モードのモード番号をスケーリングしたモード番号に変換して、アスペクト比が異なる場合に使用する第２イントラ色差予測モードを導出する。【選択図】図１

Dispositivo de codificación de vídeo, procedimiento de codificación de vídeo, dispositivo de decodificación de vídeo y procedimiento de decodificación de vídeo

Se proporciona un dispositivo de codificación de vídeo con el que cada imagen de un vídeo se divide en un primer bloque de un tamaño prescrito que se divide además en uno o una pluralidad de segundos bloques, y el vídeo se codifica en unidades de bloque. Una unidad de cálculo de parámetros de cuantificación (110) calcula un segundo parámetro de cuantificación de bloque. Una unidad de derivación de parámetros de cuantificación de predicción (114) deriva un parámetro de cuantificación de predicción de un segundo bloque, usando un parámetro de cuantificación de un tercer bloque que es adyacente a la izquierda del segundo bloque y un cuarto bloque que es adyacente por encima del segundo bloque. Una unidad generadora de parámetros de cuantificación diferencial (111) genera un parámetro de cuantificación diferencial de segundo bloque a partir de la diferencia del parámetro de cuantificación de segundo bloque y el parámetro de cuantificación de predicción. Una primera unidad generadora de cadena de bits de codificación (112) codifica el parámetro de cuantificación diferencial del segundo bloque. (Traducción automática con Google Translate, sin valor legal)

動態影像解碼裝置、動態影像解碼方法及動態影像解碼程式

畫面間預測資訊導出部(104)，係根據與編碼對象之預測區塊同一圖像內的編碼對象之預測區塊之鄰近的已編碼之預測區塊的畫面間預測資訊、和與編碼對象之預測區塊不同之已編碼圖像內的預測區塊的畫面間預測資訊，導出畫面間預測資訊之候補。畫面間預測資訊導出部(104)，係從已被導出之畫面間預測資訊之候補，決定出編碼對象之預測區塊的畫面間預測時所使用的畫面間預測資訊之候補。第2編碼位元列生成部(110)，係將前記決定部所決定之畫面間預測資訊之候補加以表示的索引，基於畫面間預測資訊之候補數而予以編碼。

動態影像解碼裝置及動態影像解碼方法

畫面間預測資訊導出部(104)，係根據與編碼對象之預測區塊同一圖像內的編碼對象之預測區塊之鄰近的已編碼之預測區塊的畫面間預測資訊、和與編碼對象之預測區塊不同之已編碼圖像內的預測區塊的畫面間預測資訊，導出畫面間預測資訊之候補。畫面間預測資訊導出部(104)，係從已被導出之畫面間預測資訊之候補，決定出編碼對象之預測區塊的畫面間預測時所使用的畫面間預測資訊之候補。第2編碼位元列生成部(110)，係將前記決定部所決定之畫面間預測資訊之候補加以表示的索引，基於畫面間預測資訊之候補數而予以編碼。

動態影像編碼裝置、動態影像編碼方法、動態影像編碼程式、送訊裝置、送訊方法及送訊程式、以及動態影像解碼裝置、動態影像解碼方法、動態影像解碼程式、收訊裝置、收訊方法及收訊程式

畫面間預測資訊導出部(104)，係根據與編碼對象之預測區塊同一圖像內的編碼對象之預測區塊之鄰近的已編碼之預測區塊的畫面間預測資訊、和與編碼對象之預測區塊不同之已編碼圖像內的預測區塊的畫面間預測資訊，導出畫面間預測資訊之候補。畫面間預測資訊導出部(104)，係從已被導出之畫面間預測資訊之候補，決定出編碼對象之預測區塊的畫面間預測時所使用的畫面間預測資訊之候補。第2編碼位元列生成部(110)，係將前記決定部所決定之畫面間預測資訊之候補加以表示的索引，基於畫面間預測資訊之候補數而予以編碼。

Clearance calculation device and clearance calculation method

A clearance calculation device for a rotary machine in which a rotating body is rotatably supported by a stationary body and a gas path is formed between the stationary body and the rotating body. The clearance calculation device includes: a data acquisition unit configured to acquire a rotational speed of the rotating body and a gas temperature of a gas taken in the gas path; a gas path temperature calculation unit configured to calculate a gas path temperature of the gas path based on the rotational speed and the gas temperature; a metal temperature calculation unit configured to calculate temperatures of the stationary body and the rotating body by performing an unsteady heat transfer analysis using a stationary body heat transfer analysis model and a rotating body heat transfer analysis model using the gas path temperature as a boundary condition; a deformation amount calculation unit configured to calculate deformation amounts of the stationary body and the rotating body based on temperature changes of the stationary body and the rotating body; and a clearance calculation unit configured to calculate a clearance value between the stationary body and the rotating body based on the deformation amounts.

Clearance sensor

A clearance sensor according to the present invention comprises: a columnar detection electrode having a detection end surface on one end side in the axial direction of the center axis; an electrode member including a guard electrode and a ground electrode having the center axis coaxial with that of the detection electrode; an insulating member linking between the detection electrode and the guard electrode, and linking between the guard electrode and the ground electrode; and an insulating layer filling the spaces between the detection electrode, the guard electrode, the ground electrode, and the insulating member, wherein the space between the electrode member and the insulating member is retained in the axial direction and/or the direction around the axis of the center axis.

Moving picture decoding device, moving picture decoding method, moving picture decoding program, and receiving device

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation unit codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

Moving picture coding device, moving picture coding method, moving picture coding program, transmitting device, transmitting method and transmitting program, and moving picture decoding device, moving picture decoding method, moving picture decoding program, receiving device, receiving method and receiving program

A prediction information derivation unit derives inter prediction information candidates from inter prediction information of coded prediction blocks neighboring a prediction block subject to coding within the same picture as the prediction block subject to coding and inter prediction information of a prediction block in a coded picture that is different from the prediction block subject to coding. The prediction information derivation unit determines an inter prediction information candidate to be used for inter prediction of the prediction block subject to coding from the inter prediction information candidates that have been derived. A second bitstream generation uni codes an index that indicates the inter prediction information candidate based on the number of the inter prediction information candidates.

動画像符号化装置、動画像符号化方法、動画像符号化プログラム、送信装置、送信方法及び送信プログラム

【課題】隣接ブロックの動き情報を使用して符号化を行う際、処理負荷を抑える。 【解決手段】結合動き情報候補リスト生成部１１００は、符号化対象予測ブロックに空間的又は時間的に隣接する複数のブロックの有する各動き情報を動き情報候補として登録した動き情報候補リストを生成する。予測誤差符号化部１０３は、動き情報候補リストから選択された動き情報候補を符号化対象予測ブロックの動き情報として使用して、符号化対象予測ブロックの予測誤差信号を求めて符号化する。動き情報符号化部１１０は、動き情報候補リストから選択された動き情報候補を示すインデックスを符号化する。結合動き情報候補リスト生成部１１００は、所定の大きさ以下の符号化対象予測ブロックでは、動き情報候補に含まれる参照画像の指定情報を同一の値に設定する。 【選択図】図１０

動画像復号装置、動画像復号方法、動画像復号プログラム、受信装置、受信方法及び受信プログラム

【課題】隣接ブロックの動き情報を使用して符号化を行う際、処理負荷を抑える。 【解決手段】結合動き情報算出部２６０５は、復号対象予測ブロックに空間的又は時間的に隣接する複数のブロックの有する各動き情報を動き情報候補として登録した動き情報候補リストを生成する。動き情報ビットストリーム復号部２６００は、動き情報候補リストから選択すべき動き情報候補を示すインデックスを復号する。加算部６０４は、動き情報候補を示すインデックスにもとづいて動き情報候補リストから選択された動き情報候補を復号対象予測ブロックの動き情報として使用することにより生成される予測信号と、復号された復号対象予測ブロックの予測誤差信号とを加算して復号対象予測ブロックの画像信号を再生する。結合動き情報算出部２６０５は、所定の大きさ以下の復号対象予測ブロックでは、動き情報候補に含まれる参照画像の指定情報を同一の値に設定する。 【選択図】図２６

画像符号化装置、画像符号化方法、画像符号化プログラム

【課題】動き補償予測を使用する際の符号化効率を向上させる。 【解決手段】予測モード判定部１０９は、符号化対象ブロックの動き情報として、符号化 対象ブロックに隣接する参照ブロックのインデックス、及び符号化対象ブロックの動きベ クトルと参照ブロックの動きベクトルとの差分ベクトルを使用するモードを選択可能であ る。予測誤差符号化部１０３は、予測モード判定部１０９から供給される動き情報をもと に生成される予測信号と、符号化対象ブロックの画像信号との差分である予測誤差信号を 符号化する。動き情報符号化部１１０は、予測モード判定部１０９から供給される動き情 報を符号化する。多重化部１１２は、予測誤差信号符号化部から供給される符号化データ と、動き情報符号化部１１０から供給される符号化データとを多重化する。 【選択図】図１

画像符号化装置、画像符号化方法及び画像符号化プログラム

【課題】動き補償予測を使用する際の符号化効率を向上させる。 【解決手段】予測モード判定部１０９は、符号化対象ブロックの動き情報として、符号化対象ブロックに隣接する参照ブロックのインデックス、及び符号化対象ブロックの動きベクトルと参照ブロックの動きベクトルとの差分ベクトルを使用するモードを選択可能である。予測誤差符号化部１０３は、予測モード判定部１０９から供給される動き情報をもとに生成される予測信号と、符号化対象ブロックの画像信号との差分である予測誤差信号を符号化する。動き情報符号化部１１０は、予測モード判定部１０９から供給される動き情報を符号化する。多重化部１１２は、予測誤差信号符号化部から供給される符号化データと、動き情報符号化部１１０から供給される符号化データとを多重化する。 【選択図】図１

Moving image encoding device, moving image encoding method and moving image encoding program, as well as moving image decoding device, moving image decoding method and moving image decoding program

Moving image encoding device, moving image encoding method and moving image encoding program, as well as moving image decoding device, moving image decoding method and moving image decoding program

動画像復号装置、動画像復号方法及び動画像復号プログラム

【課題】量子化パラメータの符号量を削減して、符号化効率を向上させる。【解決手段】動画像の各ピクチャを所定サイズで分割した第１のブロックの中を更に１つ或いは複数の第２のブロックに分割して動画像が符号化されたビットストリームを復号する動画像復号装置において、予測量子化パラメータ導出部２０５は、第２のブロックに近接する１つ或いは複数の第３のブロックの量子化パラメータを用いて、第２のブロックの予測量子化パラメータを導出する。予測量子化パラメータ導出部２０５は、第２のブロックに近接する第３のブロックが第１のブロックの境界を越えた位置にある場合は、第２のブロックより前に復号された第４のブロックの量子化パラメータを用いて第２のブロックの予測量子化パラメータを導出する。【選択図】図２