公开(公告)号：US20170302954A1

公开(公告)日：2017-10-19

申请号：US15636476

申请日：2017-06-28

Applicant: GE Video Compression, LLC

Inventor： Valeri GEORGE ,  Benjamin BROSS ,  Heiner KIRCHHOFFER ,  Detlev MARPE ,  Tung NGUYEN ,  Matthias PREISS ,  Mischa SIEKMANN ,  Jan STEGEMANN ,  Thomas WIEGAND

IPC: H04N19/52 ,  H04N19/61 ,  H04N19/174 ,  H04N19/124 ,  H04N19/132 ,  H04N19/13 ,  H04N19/70 ,  H04N19/184

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

Abstract: 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：US20170289574A1

公开(公告)日：2017-10-05

申请号：US15621702

申请日：2017-06-13

Applicant: GE Video Compression, LLC

Inventor： Tung NGUYEN ,  Heiner KIRCHHOFFER ,  Detlev MARPE

IPC: H04N19/60 ,  H03M7/40 ,  H04N19/91

CPC classification number: H04N19/60 ,  H03M7/4018 ,  H03M7/4075 ,  H04N19/91

Abstract: An idea used herein is to use the same function for the dependency of the context and the dependency of the symbolization parameter on previously coded/decoded transform coefficients. Using the same function—with varying function parameter—may even be used with respect to different transform block sizes and/or frequency portions of the transform blocks in case of the transform coefficients being spatially arranged in transform blocks. A further variant of this idea is to use the same function for the dependency of a symbolization parameter on previously coded/decoded transform coefficients for different sizes of the current transform coefficient's transform block, different information component types of the current transform coefficient's transform block and/or different frequency portions the current transform coefficient is located within the transform block.

公开(公告)号：US20170207797A1

公开(公告)日：2017-07-20

申请号：US15479787

申请日：2017-04-05

Applicant: GE Video Compression, LLC

Inventor： Detlev MARPE ,  Tung NGUYEN ,  Heiko SCHWARZ ,  Thomas WIEGAND

IPC: H03M7/00

CPC classification number: H03M7/00 ,  H03M7/40 ,  H03M7/4006 ,  H03M7/46

Abstract: Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

公开(公告)号：US20160373131A1

公开(公告)日：2016-12-22

申请号：US15257606

申请日：2016-09-06

Applicant: GE Video Compression, LLC

Inventor： Detlev MARPE ,  Tung NGUYEN ,  Heiko SCHWARZ ,  Thomas WIEGAND

IPC: H03M7/40 ,  H03M7/46

CPC classification number: H03M7/00 ,  H03M7/40 ,  H03M7/4006 ,  H03M7/46

Abstract: Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

公开(公告)号：US20160316212A1

公开(公告)日：2016-10-27

申请号：US15200300

申请日：2016-07-01

Applicant: GE Video Compression, LLC

Inventor： Heiner KIRCHHOFFER ,  Heiko SCHWARZ ,  Tung NGUYEN ,  Detlev MARPE ,  Thomas WIEGAND

IPC: H04N19/18 ,  H04N19/70 ,  H04N19/129 ,  H04N19/176

CPC classification number: H04N19/18 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50 ,  H04N19/51 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.

公开(公告)号：US20160309179A1

公开(公告)日：2016-10-20

申请号：US15195609

申请日：2016-06-28

Applicant: GE Video Compression, LLC

Inventor： Heiko SCHWARZ ,  Heiner KIRCHHOFFER ,  Philipp HELLE ,  Simon OUDIN ,  Jan STEGEMANN ,  Benjamin BROSS ,  Detlev MARPE ,  Thomas WIEGAND

IPC: H04N19/52 ,  H04N19/70 ,  H04N19/176 ,  H04N19/184 ,  H04N19/172

CPC classification number: H04N19/52 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/70

Abstract: 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：US20160309169A1

公开(公告)日：2016-10-20

申请号：US15195266

申请日：2016-06-28

Applicant: GE Video Compression, LLC

Inventor： Martin WINKEN ,  Heiner KIRCHHOFFER ,  Heiko SCHWARZ ,  Detlev MARPE ,  Thomas WIEGAND

IPC: H04N19/159 ,  H04N19/463 ,  H04N19/176 ,  H04N19/103 ,  H04N19/119

Abstract: A better rate distortion ratio is achieved by making interrelationships between coding parameters of different planes available for exploitation for the aim of redundancy reduction despite the additional overhead resulting from the need to signal the inter-plane prediction information to the decoder. In particular, the decision to use inter plane prediction or not may be performed for a plurality of planes individually. Additionally or alternatively, the decision may be done on a block basis considering one secondary plane.

公开(公告)号：US20160227210A1

公开(公告)日：2016-08-04

申请号：US15096512

申请日：2016-04-12

Applicant: GE Video Compression, LLC

Inventor： Tung NGUYEN ,  Ali Atef Ibrahim KHAIRAT ABDELHAMID ,  Detlev MARPE

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/172 ,  H04N19/186

CPC classification number: H04N19/105 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186

Abstract: The coding efficiency of a multi-component picture or video coding concept is improved by reconstructing a third component signal relating to a third component of the multi-component video using inter-component prediction from both a reconstructed first component signal and a reconstructed second component signal.

Abstract translation: 通过使用来自重构的第一分量信号和重建的第二分量信号的分量间预测重建与多分量视频的第三分量有关的第三分量信号，改善了多分量图像或视频编码概念的编码效率 。

公开(公告)号：US20160057441A1

公开(公告)日：2016-02-25

申请号：US14875808

申请日：2015-10-06

Applicant: GE Video Compression, LLC

Inventor： Robert SKUPIN ,  Karsten SUEHRING ,  Yago SANCHEZ DE LA FUENTE ,  Gerhard TECH ,  Valeri GEORGE ,  Thomas SCHIERL ,  Detlev MARPE

IPC: H04N19/44 ,  H04N19/36 ,  H04N19/187

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/137 ,  H04N19/17 ,  H04N19/187 ,  H04N19/30 ,  H04N19/36 ,  H04N19/436 ,  H04N19/463 ,  H04N19/52 ,  H04N19/55 ,  H04N19/59 ,  H04N19/597 ,  H04N19/70

Abstract: Various concepts which further improve multi-view/layer coding concepts, are described.

Abstract translation: 描述进一步改进多视图/层编码概念的各种概念。

公开(公告)号：US20160014430A1

公开(公告)日：2016-01-14

申请号：US14673908

申请日：2015-03-31

Applicant: GE Video Compression, LLC.

Inventor： Tobias HINZ ,  Haricharan LAKSHMAN ,  Jan STEGEMANN ,  Philipp HELLE ,  Mischa SIEKMANN ,  Karsten SUEHRING ,  Detlev MARPE ,  Heiko SCHWARZ ,  Christian BARTNIK ,  Ali Atef Ibrahim KHAIRAT ABDELHAMID ,  Heiner KIRCHHOFFER ,  Thomas WIEGAND

IPC: H04N19/615 ,  H04N19/137 ,  H04N19/176 ,  H04N19/33 ,  H04N19/70

Abstract: Information available from coding/decoding the base layer, i.e. base-layer hints, is exploited to render the motion-compensated prediction of the enhancement layer more efficient by more efficiently coding the enhancement layer motion parameters.

Abstract translation: 利用从基层编码/解码获得的信息，即基层提示，通过对增强层运动参数进行更有效的编码，使增强层的运动补偿预测更有效率。