公开(公告)号：US11025928B2

公开(公告)日：2021-06-01

申请号：US16795632

申请日：2020-02-20

Applicant: GE Video Compression, LLC

Inventor： Karsten Suehring ,  Thomas Schierl ,  Valeri George ,  Detlev Marpe ,  Robert Skupin

IPC: H04N19/187 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/30 ,  H04N19/102 ,  H04N19/12 ,  H04N19/174 ,  H04N19/80 ,  H04N19/33 ,  H04N19/436 ,  H04N19/59 ,  H04N19/139 ,  H04N19/156

Abstract: Scalable coding concepts are described. One aspect improves parallel decoding of inter-dependent layers of a multi-layer video data stream by introducing a long-term syntax element structure for guaranteeing that during a predetermined time period the pictures of the dependent layer are subdivided so that borders of the spatial segments of the pictures of the second layer and the spatial segments of the first layer overlay. Another aspect concerns upsampling from base layer to enhancement layer. Another aspect introduces a long-term syntax element structure allowing the decoder to determine the inter-layer offset for a predetermined time period. Another aspect introduces a type indicator field changing a way a layer indicator field within the NAL unit headers is to be interpreted. Another aspect allows different codecs/standards to be used for the different layers. Another aspect concerns a syntax element structure which indicates the inter-layer offset in units of the base layer blocks.

公开(公告)号：US11025926B2

公开(公告)日：2021-06-01

申请号：US16568738

申请日：2019-09-12

Applicant: GE Video Compression, LLC

Inventor： Heiner Kirchhoffer ,  Heiko Schwarz ,  Tung Nguyen ,  Detlev Marpe ,  Thomas Wiegand

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

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：US11012695B2

公开(公告)日：2021-05-18

申请号：US16780031

申请日：2020-02-03

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

Abstract: 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：US11006136B2

公开(公告)日：2021-05-11

申请号：US16795655

申请日：2020-02-20

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Karsten Suehring ,  Thomas Schierl ,  Detlev Marpe ,  Robert Skupin ,  Yago Sanchez de la Fuente ,  Gerhard Tech

IPC: H04N19/30 ,  H04N19/65 ,  H04N19/70 ,  H04L29/08 ,  H04N19/187 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/85 ,  H04N19/119 ,  H04N19/166 ,  H04N19/174 ,  H04N19/593 ,  H04N19/66 ,  H04N19/89 ,  H04N19/91 ,  H04N19/33

Abstract: The signalization of the inter-layer dependencies between layers of a multi-layered data stream is described. A good compromise between a too intensive restriction of the potential diversity of inter-layer dependencies on the one hand and a too complex signaling of the inter-layer dependencies on the other hand has been found by describing the inter-layer dependencies by way of a first inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by a base layer-ID and a second inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by an extension layer-ID, the base layer ID and extension layer ID indexing the layers the portions of the multi-layer data stream are associated with. In accordance with this concept, emphasis may be shifted between increased diversity of the signalizable inter-layer dependencies on the one hand and reduced side-information overhead for signaling the inter-layer dependencies on the other hand.

公开(公告)号：US10893301B2

公开(公告)日：2021-01-12

申请号：US16778484

申请日：2020-01-31

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Heiner Kirchhoffer ,  Martin Winken ,  Philipp Helle ,  Detlev Marpe ,  Heiko Schwarz ,  Thomas Wiegand

IPC: H04N19/96 ,  H04N19/52 ,  H04N19/46 ,  H04N19/53 ,  H04N19/17 ,  H04N19/59 ,  H04N19/593 ,  H04N19/169 ,  H04N19/61 ,  H04N19/176

Abstract: Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative embodiments relate to picture and/or video coding applications.

公开(公告)号：US10855995B2

公开(公告)日：2020-12-01

申请号：US16686558

申请日：2019-11-18

Applicant: GE Video Compression, LLC

Inventor： Martin Winken ,  Heiner Kirchhoffer ,  Heiko Schwarz ,  Detlev Marpe ,  Thomas Wiegand

IPC: H04N19/159 ,  H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/147 ,  H04N19/46 ,  H04N19/196 ,  H04N19/61 ,  H04N19/96 ,  H04N19/103 ,  H04N19/463 ,  H04N19/186

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：US10827187B2

公开(公告)日：2020-11-03

申请号：US16846579

申请日：2020-04-13

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Helle ,  Heiko Schwarz ,  Detlev Marpe ,  Thomas Wiegand ,  Simon Oudin ,  Benjamin Bross

IPC: H04N19/176 ,  H04N19/70 ,  H04N19/93 ,  H04N19/119 ,  H04N19/46 ,  H04N19/196 ,  H04N19/61 ,  H04N19/147

Abstract: A further coding efficiency increase may be achieved if for a current block of a picture, for which the bit stream signals one of supported partitioning patterns, a reversal of the partitioning by block merging is avoided. In particular, if the signaled one of the supported partitioning patterns specifies a subdivision of the block into two or more further blocks, a removal of certain coding parameter candidates for all further blocks, except a first further block of the further blocks in a coding order, is performed. Particularly, those coding parameter candidates are removed from the set of coding parameter candidates for the respective further block, the coding parameters of which are the same as coding parameters associated with any of the further blocks which, when being merged with the respective further block, would result in one of the supported partitioning pattern. This avoids redundancy between partitioning coding and merging coding.

公开(公告)号：US10812802B2

公开(公告)日：2020-10-20

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 ,  H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/147 ,  H04N19/46 ,  H04N19/196 ,  H04N19/61 ,  H04N19/96 ,  H04N19/103 ,  H04N19/463 ,  H04N19/186

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：US10803483B2

公开(公告)日：2020-10-13

申请号：US16261823

申请日：2019-01-30

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp Helle ,  Simon Oudin ,  Martin Winken ,  Detlev Marpe ,  Thomas Wiegand

IPC: G06Q30/02 ,  G06F16/00 ,  H04N19/196 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/96 ,  H04N19/463 ,  H04N19/14 ,  H04N19/186 ,  H04N19/105 ,  H04N19/147 ,  G06Q30/06 ,  G06Q10/00 ,  G06Q30/00

Abstract: A favorable merging or grouping of simply connected regions into which the array of information samples is sub-divided, is coded with a reduced amount of data. To this end, a predetermined relative locational relationship is defined enabling an identifying, for a predetermined simply connected region, of simply connected regions within the plurality of simply connected regions which have the predetermined relative locational relationship to the predetermined simply connected region. Namely, if the number is zero, a merge indicator for the predetermined simply connected region may be absent within the data stream. In other embodiments, spatial sub-division is performed depending on a first subset of syntax elements, followed by combining spatially neighboring simply connected regions depending on a second subset of syntax elements, to obtain an intermediate sub-division.

公开(公告)号：US10785500B2

公开(公告)日：2020-09-22

申请号：US16251785

申请日：2019-01-18

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 ,  H04N19/50 ,  H04N19/70 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184

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.