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公开(公告)号：US12010334B2
公开(公告)日：2024-06-11
申请号：US16850588
申请日：2020-04-16
发明人： 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分类号： H04N19/30 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/187 , H04N19/196 , H04N19/33 , H04N19/34 , H04N19/48 , H04N19/503 , H04N19/587 , H04N19/59 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/70 , H04N19/82 , H04N19/86 , H04N19/11 , H04N19/463
CPC分类号： H04N19/33 , H04N19/105 , H04N19/107 , H04N19/117 , H04N19/119 , H04N19/136 , H04N19/137 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/187 , H04N19/198 , H04N19/34 , H04N19/48 , H04N19/503 , H04N19/587 , H04N19/59 , H04N19/593 , H04N19/61 , H04N19/615 , H04N19/70 , H04N19/82 , H04N19/865 , H04N19/11 , H04N19/463
摘要： 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.
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公开(公告)号：US20240048708A1
公开(公告)日：2024-02-08
申请号：US18482683
申请日：2023-10-06
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： H04N19/13 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H03M7/42 , H04N19/52 , H04N19/513 , H04N19/91 , H04N19/132 , H04N19/174 , H04N19/184
CPC分类号： 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.
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公开(公告)号：US11856240B1
公开(公告)日：2023-12-26
申请号：US18052718
申请日：2022-11-04
发明人： Heiner Kirchhoffer , Martin Winken , Philipp Helle , Detlev Marpe , Heiko Schwarz , Thomas Wiegand
IPC分类号： H04N19/96 , H04N19/52 , H04N19/46 , H04N19/53 , H04N19/17 , H04N19/59 , H04N19/593 , H04N19/169 , H04N19/61 , H04N19/176
CPC分类号： H04N19/96 , H04N19/17 , H04N19/176 , H04N19/1883 , H04N19/46 , H04N19/52 , H04N19/53 , H04N19/59 , H04N19/593 , H04N19/61
摘要： 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 a picture and/or video coding applications.
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公开(公告)号：US11765362B2
公开(公告)日：2023-09-19
申请号：US17065934
申请日：2020-10-08
IPC分类号： 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
CPC分类号： H04N19/159 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/597 , H04N19/61 , H04N19/70 , H04N19/96
摘要： 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.
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公开(公告)号：US11611761B2
公开(公告)日：2023-03-21
申请号：US16987854
申请日：2020-08-07
IPC分类号： 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
摘要： 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.
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公开(公告)号：US11533485B2
公开(公告)日：2022-12-20
申请号：US16778048
申请日：2020-01-31
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 , H04N19/50 , H04N19/70 , H04N19/61 , H04N19/124 , H03M7/42 , H04N19/52 , 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.
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公开(公告)号：US11363308B2
公开(公告)日：2022-06-14
申请号：US16987530
申请日：2020-08-07
发明人： Heiner Kirchhoffer , Martin Winken , Philipp Helle , Detlev Marpe , Heiko Schwarz , Thomas Wiegand
IPC分类号： H04N19/96 , H04N19/52 , H04N19/46 , H04N19/53 , H04N19/17 , H04N19/59 , H04N19/593 , H04N19/169 , H04N19/61 , H04N19/176
摘要： 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.
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公开(公告)号：US11265556B2
公开(公告)日：2022-03-01
申请号：US17029130
申请日：2020-09-23
发明人： Heiner Kirchhoffer , Heiko Schwarz , Tung Nguyen , Detlev Marpe , Thomas Wiegand
IPC分类号： H04N19/18 , H04N19/50 , H04N19/176 , H04N19/70 , H04N19/46 , H04N19/129 , H04N19/136 , H04N19/13 , H04N19/61 , H04N19/91 , H04N19/124 , H04N19/139 , H04N19/51 , H04N19/59
摘要： 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.
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公开(公告)号：US11102518B2
公开(公告)日：2021-08-24
申请号：US16855266
申请日：2020-04-22
发明人： Heiner Kirchhoffer , Martin Winken , Philipp Helle , Detlev Marpe , Heiko Schwarz , Thomas Wiegand
IPC分类号： H04N19/96 , H04N19/52 , H04N19/46 , H04N19/53 , H04N19/17 , H04N19/59 , H04N19/593 , H04N19/169 , H04N19/61 , H04N19/176
摘要： 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.
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公开(公告)号：US10856013B2
公开(公告)日：2020-12-01
申请号：US16197232
申请日：2018-11-20
发明人： Heiner Kirchhoffer , Martin Winken , Philipp Helle , Detlev Marpe , Heiko Schwarz , Thomas Wiegand
IPC分类号： H04N19/96 , H04N19/52 , H04N19/46 , H04N19/53 , H04N19/17 , H04N19/59 , H04N19/593 , H04N19/169 , H04N19/61 , H04N19/176
摘要： 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.
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