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公开(公告)号：US20210029353A1
公开(公告)日：2021-01-28
申请号：US17036884
申请日：2020-09-29
发明人： Jens BRANDENBURG , Tobias HINZ , Adam WIECKOWSKI , Jackie MA , Valeri GEORGE , Christian LEHMANN , Heiko SCHWARZ , Detlev MARPE , Thomas WIEGAND , Robert SKUPIN , Yago SÁNCHEZ DE LA FUENTE , Thomas SCHIERL
IPC分类号： H04N19/107 , H04N19/11 , H04N19/563 , H04N19/513 , H04N19/172 , H04N19/176 , H04N19/593
摘要： Video codec for supporting temporal inter-prediction, configured to perform padding of an area of a referenced portion of a reference picture which extends beyond a border of the reference picture, which referenced portion is referenced by an inter predicted block of a current picture by selecting one of a plurality of intra-prediction modes, and padding the area using the selected intra-prediction mode.
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公开(公告)号：US20210014480A1
公开(公告)日：2021-01-14
申请号：US17035061
申请日：2020-09-28
发明人： Valeri GEORGE , Tobias HINZ , Jackie MA , Jens BRANDENBURG , Christian LEHMANN , Adam WIECKOWSKI , Heiko SCHWARZ , Detlev MARPE , Thomas WIEGAND , Thomas SCHIERL
IPC分类号： H04N19/105 , H04N19/117 , H04N19/82 , H04N19/159 , H04N19/176
摘要： Concepts are described which enable improved suitability of a respective codec for parallel processing at encoder and/or decoder.
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公开(公告)号：US20240048705A1
公开(公告)日：2024-02-08
申请号：US18488560
申请日：2023-10-17
发明人： Paul HAASE , Christian RUDAT , Heiner KIRCHHOFFER , Phan Hoang Tung NGUYEN , Mischa SIEKMANN , Heiko SCHWARZ , Detlev MARPE , Thomas WIEGAND
IPC分类号： H04N19/124 , H04N19/129 , H04N19/13 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/60 , H04N19/172
CPC分类号： H04N19/124 , H04N19/129 , H04N19/13 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/186 , H04N19/60 , H04N19/172
摘要： A video encoder is configured to entropy encode an absolute value of a quantization level of a current transform coefficient at position (xC, yC), wherein the absolute value is encoded using context adaptive binary arithmetic encoding of bins of a first binarization. The video coder is further configured, for the current transform coefficient, to encode a bin of the first binarization by using a context which is determined based on a sum of minimum absolute values of transform coefficient quantization levels, based on encoded bins of the first binarization, at one or more transform coefficient positions among (xC+1, yC), (xC+2, yC), (xC+1, yC+1), (xC, yC+1), and (xC, yC+2).
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公开(公告)号：US20230353788A1
公开(公告)日：2023-11-02
申请号：US18211729
申请日：2023-06-20
发明人： Jonathan PFAFF , Martin WINKEN , Christian RUDAT , Heiko SCHWARZ , Thomas WIEGAND , Detlev MARPE
摘要： A previously encoded or reconstructed version of a neighborhood of a predetermined block to be predicted is exploited so as to result into a more efficient predictive coding of the prediction block. In particular, a spectral decomposition of a region composed of this neighborhood and a first version of a predicted filling of the predetermined block results into a first spectrum which is subject to noise reduction and the thus resulting second spectrum may be subject to a spectral composition, thereby resulting in a modified version of this region including a second version of the predicted filling of the predetermined block. Owing to the exploitation of the already processed, i.e. encoded/reconstructed, neighborhood of the predetermined block, the second version of the predicted filling of the predetermined block tends to improve the coding efficiency.
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公开(公告)号：US20230199188A1
公开(公告)日：2023-06-22
申请号：US18110514
申请日：2023-02-16
IPC分类号： H04N19/13 , H04N19/176 , H04N19/189 , H04N19/46
CPC分类号： H04N19/13 , H04N19/176 , H04N19/189 , H04N19/46
摘要： Concepts for transform coefficient block coding are described which enable coding of coefficients of a transform block in a manner suitable for dependent quantization and effectively implementable by entropy coding in terms of coding efficiency.
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公开(公告)号：US20230059366A1
公开(公告)日：2023-02-23
申请号：US17787218
申请日：2020-12-21
发明人： Benjamin BROSS , Yago SÁNCHEZ DE LA FUENTE , Robert SKUPIN , Martin WINKEN , Heiko SCHWARZ , Detlev MARPE , Thomas SCHIERL , Thomas WIEGAND
IPC分类号： H04N19/117 , H04N19/80 , H04N19/132 , H04N19/105
摘要： Concepts are described, including encoding of a video into data stream and decoding of a data stream having a video encoded thereinto, using motion compensation prediction between pictures of equal resolution and pictures of different resolution, based on motion vectors at a half-sample resolution and on motion vectors at a different resolution using interpolation filters to obtain sub-sample values within a reference sample array. The interpolation filter is selected from two interpolation filter versions different in a higher edge preserving property, and the selection is depending on whether a current picture is equal in picture resolution to the reference sample array in horizontal and/or vertical dimension, and/or a constraint information in the data stream.
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37.发明申请公开(公告)号：US20220103820A1
公开(公告)日：2022-03-31
申请号：US17547937
申请日：2021-12-10
IPC分类号： H04N19/12 , H04N19/124 , H04N19/13 , H04N19/147 , H04N19/159 , H04N19/176
摘要： Decoder for block-based decoding of an encoded picture signal using transform decoding, configured to select for a predetermined block a selected transform mode, entropy decode a block to be dequantized, which is associated with the predetermined block according to the selected transform mode, from a data stream and dequantize the block to be dequantized using a quantization accuracy, which depends on the selected transform mode, to obtain a dequantized block.
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公开(公告)号：US20210136373A1
公开(公告)日：2021-05-06
申请号：US17147630
申请日：2021-01-13
IPC分类号： H04N19/119 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/70 , H04N19/46 , H04N19/176
摘要： Block-based coding of a picture is done by providing an intra-prediction coding concept according to which a certain block of the picture is intra-prediction coded using a certain intra-coding mode by partitioning the predetermined block into partitions which are, for reconstruction purposes, sequentially subject to spatial prediction using the intra-prediction coding mode signaled for the certain block followed by correcting the thus obtained predictor using a prediction residual so that for preceding partitions a reconstruction of the samples is available to the decoder at the time of processing the next, then current, partition.
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公开(公告)号：US20200244955A1
公开(公告)日：2020-07-30
申请号：US16845715
申请日：2020-04-10
发明人： Jonathan PFAFF , Philipp HELLE , Dominique MANIRY , Thomas WIEGAND , Wojciech SAMEK , Stephan KALTENSTADLER , Heiko SCHWARZ , Detlev MARPE , Mischa SIEKMANN , Martin WINKEN
IPC分类号： H04N19/109 , H04N19/176 , H04N19/61
摘要： In accordance with a first aspect, an improved compression efficiency is achieved by letting a block-wise picture codec support a set of intra-prediction modes according to which the intra-prediction signal for a current block of a picture is determined by applying a set of neighboring samples of the current block onto a neural network. A second aspect of the present application is that, additionally or alternatively to the spending of neural network-based intra-prediction modes, the mode selection may be rendered more effective by the usage of a neural network dedicated to determine a rank or a probability value for each of the set of intra-prediction modes by applying a set of neighboring samples thereonto with the rank or probability value being used for the selection of one intra-prediction mode out of the plurality of intra-prediction modes including or coinciding with the set of intra-prediction modes.
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公开(公告)号：US20240364362A1
公开(公告)日：2024-10-31
申请号：US18767568
申请日：2024-07-09
发明人： Gerhard TECH , Paul HAASE , Daniel BECKING , Heiner KIRCHHOFFER , Jonathan PFAFF , Karsten MÜLLER , Wojciech SAMEK , Heiko SCHWARZ , Detlev MARPE , Thomas WIEGAND
IPC分类号： H03M7/30
CPC分类号： H03M7/6005
摘要： Some embodiments relate to a method, a decoder and/or an encoder for entropy coding of parameters of neural networks and their incremental updates, and in particular to reduced value set coding and history depended significance coding.
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