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1. 发明公开

EP4407995A3 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 审中-实审
公开(公告)号：EP4407995A3
公开(公告)日：2024-10-30
申请号：EP24166607.2
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/50 , H04N19/513 , H03M7/42 , H04N19/13 , H04N19/91
CPC分类号： H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/13
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

2. 发明公开

EP4407996A3 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 审中-实审
公开(公告)号：EP4407996A3
公开(公告)日：2024-10-30
申请号：EP24166608.0
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/50 , H04N19/513 , H03M7/42 , H04N19/13 , H04N19/91
CPC分类号： H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/13
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

3. 发明公开

EP4407996A2 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 审中-实审
公开(公告)号：EP4407996A2
公开(公告)日：2024-07-31
申请号：EP24166608.0
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/91
CPC分类号： H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/13
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

4. 发明公开

EP3343781A1 CONTEXT INITIALIZATION IN ENTROPY CODING 有权转让
公开(公告)号：EP3343781A1
公开(公告)日：2018-07-04
申请号：EP18152613.8
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H03M7/42 , H04N19/70 , H04N19/13 , H04N19/31
CPC分类号： H04N19/13 , H03M7/42 , H04N19/124 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/91
摘要： A decoder for decoding a video from a data stream into which syntax elements are coded using binarizations of the syntax elements, comprises an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initialization value.

5. 发明公开

EP4407995A2 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 审中-实审
公开(公告)号：EP4407995A2
公开(公告)日：2024-07-31
申请号：EP24166607.2
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/91
CPC分类号： H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/13
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

6. 发明公开

EP4277276A1 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 审中-实审
公开(公告)号：EP4277276A1
公开(公告)日：2023-11-15
申请号：EP23177778.0
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/50 , H04N19/513 , H03M7/42 , H04N19/13 , H04N19/91
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

7. 发明授权

EP2721822B1 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 有权转让
公开(公告)号：EP2721822B1
公开(公告)日：2018-10-31
申请号：EP12734832.4
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/70 , H04N19/13 , H04N19/91
CPC分类号： H04N19/13 , H03M7/42 , H04N19/124 , H04N19/132 , H04N19/174 , H04N19/184 , H04N19/50 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/91
摘要： A decoder for decoding a video from a data stream into which syntax elements are coded using binarizations of the syntax elements, comprises an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initialization value.

8. 发明公开

EP4033672A1 CONTEXT INITIALIZATION IN ENTROPY CODING 审中-实审
公开(公告)号：EP4033672A1
公开(公告)日：2022-07-27
申请号：EP21211399.7
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H03M7/42 , H04N19/70 , H04N19/13 , H04N19/31
摘要： A decoder for decoding a video from a data stream into which syntax elements are coded using binarizations of the syntax elements, comprises an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initialization value.

9. 发明公开

EP3930330A1 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 有权
公开(公告)号：EP3930330A1
公开(公告)日：2021-12-29
申请号：EP21189232.8
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/50 , H04N19/513 , H03M7/42 , H04N19/13 , H04N19/91
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

10. 发明公开

EP3471415A1 ENTROPY CODING OF MOTION VECTOR DIFFERENCES 有权转让
公开(公告)号：EP3471415A1
公开(公告)日：2019-04-17
申请号：EP18203401.7
申请日：2012-06-18
申请人： GE Video Compression, LLC
发明人： GEORGE, Valeri , BROSS, Benjamin , KIRCHHOFFER, Heiner , MARPE, Detlev , NGUYEN, Tung , PREISS, Matthias , SIEKMANN, Mischa , STEGEMANN, Jan , WIEGAND, Thomas
IPC分类号： H04N19/50 , H04N19/513 , H03M7/42 , H04N19/13 , H04N19/91
摘要： A decoder for decoding a video from a data stream into which horizontal and vertical components of motion vector differences are coded using binarizations of the horizontal and vertical components is described, the binarizations equaling a truncated unary code of the horizontal and vertical components, respectively, within a first interval of the domain of the horizontal and vertical components below a cutoff value, and a combination of a prefix in form of the truncated unary code for the cutoff value and a suffix in form of a Exp-Golomb code of the horizontal and vertical components, respectively, within a second interval of the domain of the horizontal and vertical components inclusive and above the cutoff value, wherein the cutoff value is two and the Exp-Golomb code has order one. An entropy decoder is configured to, for the horizontal and vertical components of the motion vector differences, derive the truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for the horizontal and vertical components of the motion vector differences, and the Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences; A reconstructor is configured to reconstruct the video based on the integer values of the horizontal and vertical components of the motion vector differences.

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