公开(公告)号：US11277614B2

公开(公告)日：2022-03-15

申请号：US16867149

申请日：2020-05-05

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand ,  Christian Bartnik

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H04N19/50 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H03M7/42 ,  H04N19/52 ,  H04N19/513 ,  H04N19/91 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184

摘要： A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated.

公开(公告)号：US10819982B2

公开(公告)日：2020-10-27

申请号：US16693886

申请日：2019-11-25

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand ,  Christian Bartnik

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H04N19/50 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H04N19/184 ,  H04N19/52 ,  H04N19/513 ,  H04N19/91 ,  H04N19/132 ,  H04N19/174 ,  H03M7/42

摘要： A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated.

公开(公告)号：US10715809B2

公开(公告)日：2020-07-14

申请号：US16693886

申请日：2019-11-25

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand ,  Christian Bartnik

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H04N19/50 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H04N19/184 ,  H04N19/52 ,  H04N19/513 ,  H04N19/91 ,  H04N19/132 ,  H04N19/174 ,  H03M7/42

摘要： A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated.

公开(公告)号：US10432939B2

公开(公告)日：2019-10-01

申请号：US16259738

申请日：2019-01-28

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand ,  Christian Bartnik

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/61 ,  H04N19/70 ,  H04N19/184 ,  H04N19/52 ,  H04N19/174 ,  H04N19/91 ,  H04N19/513 ,  H04N19/132 ,  H04N19/50

摘要： A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated.

公开(公告)号：US10313672B2

公开(公告)日：2019-06-04

申请号：US16037914

申请日：2018-07-17

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand ,  Christian Bartnik

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/61 ,  H04N19/70 ,  H04N19/50 ,  H04N19/184 ,  H04N19/174 ,  H04N19/91 ,  H04N19/513 ,  H04N19/132 ,  H04N19/52

摘要： A decoder for decoding a data stream into which media data is coded has a mode switch configured to activate a low-complexity mode or a high-efficiency mode depending on the data stream, an entropy decoding engine configured to retrieve each symbol of a sequence of symbols by entropy decoding using a selected one of a plurality of entropy decoding schemes, a desymbolizer configured to desymbolize the sequence of symbols to obtain a sequence of syntax elements, a reconstructor configured to reconstruct the media data based on the sequence of syntax elements, selection depending on the activated low-complexity mode or the high-efficiency mode. In another aspect, a desymbolizer is configured to perform desymbolization such that the control parameter varies in accordance with the data stream at a first rate in case of the high-efficiency mode being activated and the control parameter is constant irrespective of the data stream or changes depending on the data stream, but at a second lower rate in case of the low-complexity mode being activated.

公开(公告)号：US10027976B2

公开(公告)日：2018-07-17

申请号：US15695433

申请日：2017-09-05

申请人： GE Video Compression, LLC

发明人： Heiko Schwarz ,  Heiner Kirchhoffer ,  Philipp Helle ,  Simon Oudin ,  Jan Stegemann ,  Benjamin Bross ,  Detlev Marpe ,  Thomas Wiegand

IPC分类号： H04N19/50 ,  H04N19/52 ,  H04N19/184 ,  H04N19/172 ,  H04N19/70 ,  H04N19/176

CPC分类号： H04N19/52 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/70

摘要： A coding efficiency increase is achieved by using a common signalization within the bitstream with regard to activation of merging and activation of the skip mode. One possible state of one or more syntax elements within the bitstream may signalize for a current sample set of a picture that the sample set is to be merged and has no prediction residual encoded and inserted into the bitstream. A common flag may signalize whether the coding parameters associated with a current sample set are to be set according to a merge candidate or to be retrieved from the bitstream, and whether the current sample set of the picture is to be reconstructed based on a prediction signal depending on the coding parameters associated with the current sample set, without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream.

公开(公告)号：US10021393B2

公开(公告)日：2018-07-10

申请号：US15636451

申请日：2017-06-28

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/13 ,  H03M7/42 ,  H04N19/52 ,  H04N19/50 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H04N19/513 ,  H04N19/91 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184

摘要： An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a 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 horizontal and vertical components of the motion vector differences, and an 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 a video based on the integer values of the horizontal and vertical components of the motion vector differences.

公开(公告)号：US09973761B2

公开(公告)日：2018-05-15

申请号：US15674150

申请日：2017-08-10

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand

IPC分类号： H04N11/02 ,  H04N7/12 ,  H04N11/04 ,  H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/61 ,  H04N19/70 ,  H04N19/50 ,  H04N19/132 ,  H04N19/52 ,  H04N19/91 ,  H04N19/513 ,  H04N19/174 ,  H04N19/184

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 includes 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.

公开(公告)号：US09930371B2

公开(公告)日：2018-03-27

申请号：US15642085

申请日：2017-07-05

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand

IPC分类号： H04N7/12 ,  H04N19/91 ,  H03M7/42 ,  H04N19/52 ,  H04N19/50 ,  H04N19/70 ,  H04N19/13 ,  H04N19/61 ,  H04N19/124 ,  H04N19/513 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184

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： An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a 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 horizontal and vertical components of the motion vector differences, and an 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 a video based on the integer values of the horizontal and vertical components of the motion vector differences.

公开(公告)号：US09455744B2

公开(公告)日：2016-09-27

申请号：US14108132

申请日：2013-12-16

申请人： GE Video Compression, LLC

发明人： Valeri George ,  Benjamin Bross ,  Heiner Kirchhoffer ,  Detlev Marpe ,  Tung Nguyen ,  Matthias Preiss ,  Mischa Siekmann ,  Jan Stegemann ,  Thomas Wiegand

IPC分类号： H03M7/42 ,  H04N19/52 ,  H04N19/50 ,  H04N19/70 ,  H04N19/13 ,  H04N19/61 ,  H04N19/124

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 includes 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.

摘要翻译： 解码器包括熵解码器，其被配置为根据数据流的先前解码部分，根据数据流的先前解码部分，通过使用二进制熵解码从不同上下文中选择上下文并更新与不同上下文相关联的概率状态，从数据流中导出二进制数的二进制数 ; 配音器，被配置为对语法元素的二进制化进行修饰以获得语法元素的整数值; 重建器，被配置为使用量化参数基于所述语法元素的整数值来重构所述视频，其中所述熵解码器被配置为区分126概率状态，并且根据线性方程式来初始化与所述不同上下文相关联的概率状态 所述量化参数，其中所述熵解码器被配置为针对所述不同上下文中的每一者，导出所述线性方程与相应8位初始化值的第一和第四四位部分的斜率和偏移。