公开(公告)号：US20200275109A1

公开(公告)日：2020-08-27

申请号：US15930937

申请日：2020-05-13

申请人： GE Video Compression, LLC

发明人： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRÜNEBERG ,  Robert SKUPIN

IPC分类号： H04N19/169 ,  H04N19/46 ,  H04N19/91 ,  H04N19/70 ,  H04N19/463 ,  H04N19/174 ,  H04N19/436 ,  H04N19/13

摘要： The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.

公开(公告)号：US20200177883A1

公开(公告)日：2020-06-04

申请号：US16780031

申请日：2020-02-03

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： H04N19/13 ,  H03M7/42 ,  H04N19/91 ,  H04N19/70 ,  H04N19/61 ,  H04N19/52 ,  H04N19/513 ,  H04N19/50 ,  H04N19/184 ,  H04N19/174 ,  H04N19/132 ,  H04N19/124

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：US20190320177A1

公开(公告)日：2019-10-17

申请号：US16453525

申请日：2019-06-26

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： H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/61 ,  H04N19/70 ,  H04N19/50 ,  H04N19/52 ,  H04N19/174 ,  H04N19/91 ,  H04N19/513 ,  H04N19/132 ,  H04N19/184

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：US20190253736A1

公开(公告)日：2019-08-15

申请号：US16392785

申请日：2019-04-24

申请人： GE VIDEO COMPRESSION, LLC

发明人： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRUENEBERG ,  Robert SKUPIN

IPC分类号： H04N19/68 ,  H04N19/67 ,  H04N19/91 ,  H04N19/70 ,  H04N19/46 ,  H04N19/174 ,  H04N21/4728 ,  H04N21/462 ,  H04N21/2343 ,  H04N19/55 ,  H04N19/169 ,  H04N19/436 ,  H04N19/423 ,  H04N19/167

摘要： Decoder retrieval timing information, ROI information and tile identification information are conveyed within a video data stream at a level which allows for an easy access by network entities such as MANEs or decoder. In order to reach such a level, information of such types are conveyed within a video data stream by way of packets interspersed into packets of access units of a video data stream. In accordance with an embodiment, the interspersed packets are of a removable packet type, i.e. the removal of these interspersed packets maintains the decoder's ability to completely recover the video content conveyed via the video data stream.

公开(公告)号：US20190158840A1

公开(公告)日：2019-05-23

申请号：US16259815

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

IPC分类号： H04N19/13 ,  H03M7/42 ,  H04N19/124 ,  H04N19/61 ,  H04N19/70 ,  H04N19/50 ,  H04N19/52 ,  H04N19/174 ,  H04N19/91 ,  H04N19/513 ,  H04N19/132 ,  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：US20180309997A1

公开(公告)日：2018-10-25

申请号：US16025319

申请日：2018-07-02

申请人： GE Video Compression, LLC

发明人： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRÜNEBERG ,  Robert SKUPIN

IPC分类号： H04N19/13 ,  H04N19/91 ,  H04N19/70 ,  H04N19/463 ,  H04N19/174 ,  H04N19/46 ,  H04N19/436 ,  H04N19/169 ,  H04N19/593

摘要： The handling of scalable data streams by network entities is rendered less complex by, in the data stream, accompanying packets which actually carry data by packets of a different packet type which have a scalability axes descriptor defining the number of scalability axes and a semantic meaning thereof. In another aspect, the handling of scalable data streams by network entities is rendered more efficient by conveying level and/or profile descriptors using packets other than the data carrying packets, with profile and/or level descriptors being divided up into a first set explicitly signaling the definition of the available coding option set and/or available syntax element value range for a respective operation point, and a second set of profile and/or level descriptors which signal the definition of the available coding option set and/or available syntax element value range for their respective operation points by reference another profile and/or level descriptor.

公开(公告)号：US20180220161A1

公开(公告)日：2018-08-02

申请号：US15928742

申请日：2018-03-22

申请人： GE VIDEO COMPRESSION, LLC

发明人： Thomas SCHIERL ,  Valeri GEORGE ,  Anastasia HENKEL ,  Detlev MARPE ,  Karsten GRUENEBERG ,  Robert SKUPIN

IPC分类号： H04N19/68 ,  H04N21/4728 ,  H04N19/167 ,  H04N21/2343 ,  H04N21/462 ,  H04N19/174 ,  H04N19/169 ,  H04N19/423 ,  H04N19/436 ,  H04N19/91 ,  H04N19/70 ,  H04N19/67 ,  H04N19/55 ,  H04N19/46 ,  G06F15/173 ,  H04L12/54 ,  H04L12/66 ,  H04L12/801 ,  H04L12/833

摘要： Decoder retrieval timing information, ROI information and tile identification information are conveyed within a video data stream at a level which allows for an easy access by network entities such as MANEs or decoder. In order to reach such a level, information of such types are conveyed within a video data stream by way of packets interspersed into packets of access units of a video data stream, in accordance with an embodiment, the interspersed packets are of a removable packet type, i.e. the removal of these interspersed packets maintains the decoder's ability to completely recover the video content conveyed via the video data stream.

公开(公告)号：US20180205953A1

公开(公告)日：2018-07-19

申请号：US15918105

申请日：2018-03-12

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： H04N19/13 ,  H04N19/184 ,  H04N19/174 ,  H04N19/513 ,  H04N19/132 ,  H03M7/42 ,  H04N19/61 ,  H04N19/70 ,  H04N19/50 ,  H04N19/52 ,  H04N19/91 ,  H04N19/124

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：US20180167641A1

公开(公告)日：2018-06-14

申请号：US15890864

申请日：2018-02-07

申请人： GE VIDEO COMPRESSION, LLC

发明人： Thomas SCHIERL ,  Valeri GEORGE ,  Karsten GRUENEBERG ,  Heiner KIRCHHOFFER ,  Anastasia HENKEL ,  Detlev MARPE

IPC分类号： H04N19/91 ,  H04N19/436 ,  H04N19/107 ,  H04N19/169 ,  H04N19/65

摘要： A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. Thereby, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these entities. However, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted earlier, i.e. with lower delay, than the un-chopped original entities. According to another aspect combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.

公开(公告)号：US20180152708A1

公开(公告)日：2018-05-31

申请号：US15880837

申请日：2018-01-26

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： H04N19/13 ,  H04N19/174 ,  H04N19/61 ,  H04N19/513 ,  H04N19/52 ,  H04N19/70 ,  H04N19/50 ,  H04N19/132 ,  H03M7/42 ,  H04N19/124 ,  H04N19/91 ,  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.