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公开(公告)号:US20240223754A1
公开(公告)日:2024-07-04
申请号:US18433026
申请日:2024-02-05
发明人: Krit PANUSOPONE , Limin WANG , Koohyar MINOO
IPC分类号: H04N19/107 , H04N19/105 , H04N19/11 , H04N19/149 , H04N19/176 , H04N19/196 , H04N19/503 , H04N19/593 , H04N19/64 , H04N19/91
CPC分类号: H04N19/107 , H04N19/105 , H04N19/149 , H04N19/176 , H04N19/647 , H04N19/91 , H04N19/11 , H04N19/197 , H04N19/503 , H04N19/593
摘要: A method of decoding JVET video, comprising defining a coding unit (CU) template within a decoded area of a video frame, the CU template being positioned above and/or to the left of a current decoding position for which data was intra predicted, defining a search window within the decoded area, the search window being adjacent to the CU template, generating a plurality of candidate prediction templates based on pixel values in the search window, each of the plurality of candidate prediction templates being generated using different intra prediction modes, calculating a matching cost between the CU template and each of the plurality of candidate prediction templates, selecting an intra prediction mode that generated the candidate prediction template that had the lowest matching cost relative to the CU template, and generating a prediction CU for the current decoding position based on the intra prediction mode.
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公开(公告)号:US20240129553A1
公开(公告)日:2024-04-18
申请号:US18236869
申请日:2023-08-22
发明人: Krit PANUSOPONE , Yue YU , Seungwook HONG , Limin WANG
IPC分类号: H04N19/91 , H04N19/11 , H04N19/119 , H04N19/13 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/593 , H04N19/96
CPC分类号: H04N19/91 , H04N19/11 , H04N19/119 , H04N19/13 , H04N19/157 , H04N19/176 , H04N19/182 , H04N19/593 , H04N19/96 , H04N19/105
摘要: A method of partitioning a video coding block for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have a quadtree branching from the root node and binary trees branching from each of the quadtree's leaf nodes using asymmetric binary partitioning to split a coding unit represented by a quadtree leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the quadtree leaf node and coding the child nodes represented by leaf nodes of the binary tree with JVET, wherein coding efficiency is improved by taking advantage of the similarity of coding modes 2 and 66.
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公开(公告)号:US20210274192A1
公开(公告)日:2021-09-02
申请号:US17163059
申请日:2021-01-29
发明人: Krit PANUSOPONE , Yue YU , Limin WANG
IPC分类号: H04N19/159 , H04N19/174 , H04N19/30 , H04N19/137
摘要: A method for inter-coding video is provided in which transmission bandwidth requirements associated with second motion vectors for bi-directional temporal prediction is reduced. In the method motion vector information for only one of the two motion vectors for bi-directional temporal prediction can be transmitted together with information on how to derive or construct the second motion vector. Thus, rather than sending express information regarding two motion vectors, express information related to only one motion vector along with information related to reconstruction/derivation of the second motion vector is transmitted, thus reducing bandwidth requirements and increasing coding efficiency.
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公开(公告)号:US20200336734A1
公开(公告)日:2020-10-22
申请号:US16753296
申请日:2018-10-09
发明人: Krit PANUSOPONE , Yue YU , Seungwook HONG , Limin WANG
IPC分类号: H04N19/105 , H04N19/13 , H04N19/157 , H04N19/182
摘要: A method of partitioning a video coding block for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have a quadtree branching from the root node and binary trees branching from each of the quadtree's leaf nodes using asymmetric binary partitioning to split a coding unit represented by a quadtree leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the quadtree leaf node and coding the child nodes represented by leaf nodes of the binary tree with JVET, wherein coding efficiency is improved by taking advantage of the similarity of coding modes 2 and 66.
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公开(公告)号:US20230254480A1
公开(公告)日:2023-08-10
申请号:US18134279
申请日:2023-04-13
发明人: Krit PANUSOPONE , Limin WANG , Koohyar MINOO
IPC分类号: H04N19/107 , H04N19/105 , H04N19/176 , H04N19/149 , H04N19/64 , H04N19/91
CPC分类号: H04N19/107 , H04N19/105 , H04N19/176 , H04N19/149 , H04N19/647 , H04N19/91 , H04N19/503
摘要: A method of decoding JVET video, comprising defining a coding unit (CU) template within a decoded area of a video frame, the CU template being positioned above and/or to the left of a current decoding position for which data was intra predicted, defining a search window within the decoded area, the search window being adjacent to the CU template, generating a plurality of candidate prediction templates based on pixel values in the search window, each of the plurality of candidate prediction templates being generated using different intra prediction modes, calculating a matching cost between the CU template and each of the plurality of candidate prediction templates, selecting an intra prediction mode that generated the candidate prediction template that had the lowest matching cost relative to the CU template, and generating a prediction CU for the current decoding position based on the intra prediction mode.
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公开(公告)号:US20230135203A1
公开(公告)日:2023-05-04
申请号:US18091921
申请日:2022-12-30
发明人: Krit PANUSOPONE , Seungwook HONG , Limin WANG
IPC分类号: H04N19/50 , H04N19/182 , H04N19/105 , H04N19/96 , H04N19/11 , H04N19/593 , H04N19/136 , H04N19/59 , H04N19/107 , H04N19/176 , H04N19/186 , H04N19/52 , H04N19/82
摘要: A method of decoding JVET video includes receiving a bitstream indicating how a coding tree unit was partitioned into coding units, and parsing said bitstream to generate at least one predictor based on an intra prediction mode signaled in the bitstream. The predictor may be generated by interpolating neighboring pixels for each pixel within a coding block. The computation may be more accurate by deriving a value for a bottom right neighboring pixel.
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公开(公告)号:US20220210407A1
公开(公告)日:2022-06-30
申请号:US17694528
申请日:2022-03-14
发明人: Krit PANUSOPONE , Limin WANG , Koohyar MINOO
IPC分类号: H04N19/107 , H04N19/105 , H04N19/176 , H04N19/149 , H04N19/64 , H04N19/91
摘要: A method of decoding JVET video, comprising defining a coding unit (CU) template within a decoded area of a video frame, the CU template being positioned above and/or to the left of a current decoding position for which data was intra predicted, defining a search window within the decoded area, the search window being adjacent to the CU template, generating a plurality of candidate prediction templates based on pixel values in the search window, each of the plurality of candidate prediction templates being generated using different intra prediction modes, calculating a matching cost between the CU template and each of the plurality of candidate prediction templates, selecting an intra prediction mode that generated the candidate prediction template that had the lowest matching cost relative to the CU template, and generating a prediction CU for the current decoding position based on the intra prediction mode.
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公开(公告)号:US20220191514A1
公开(公告)日:2022-06-16
申请号:US17687442
申请日:2022-03-04
发明人: Krit PANUSOPONE , Koohyar MINOO , Yue YU , Limin WANG
IPC分类号: H04N19/159 , H04N19/593 , H04N19/105 , H04N19/11 , H04N19/119 , H04N19/132 , H04N19/176 , H04N19/46 , H04N19/96 , H04N19/189 , H04N19/64 , G06T9/00 , G06T9/40 , H04N19/126 , H04N19/184 , H04N19/169
摘要: A method of decoding JVET video, comprising receiving a bitstream indicating how a coding tree unit was partitioned into coding units according to a partitioning structure that allows nodes to be split according to a partitioning technique. An intra direction mode for a coding unit may be selected, as well as one or more of the plurality of reference lines to generate at least one predictor for the intra direction mode. A predictor may be generated from reference samples within each selected reference line by combining predicted pixel values based on a projected position on a main reference line in combination with predicted pixel values based on a projected position on a side reference line. The predicted pixel values are weighted according to a weight parameter, wherein the weight parameter is determined based on a shift conversion factor.
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公开(公告)号:US20220021907A1
公开(公告)日:2022-01-20
申请号:US17473807
申请日:2021-09-13
发明人: Krit PANUSOPONE , Yue YU , Seungwook HONG , Limin WANG
IPC分类号: H04N19/91 , H04N19/119 , H04N19/182 , H04N19/96 , H04N19/593 , H04N19/157 , H04N19/176 , H04N19/11 , H04N19/13
摘要: A method of partitioning a video coding block for JVET, comprising representing a JVET coding tree unit as a root node in a quadtree plus binary tree (QTBT) structure that can have a quadtree branching from the root node and binary trees branching from each of the quadtree's leaf nodes using asymmetric binary partitioning to split a coding unit represented by a quadtree leaf node into two child nodes of unequal size, representing the two child nodes as leaf nodes in a binary tree branching from the quadtree leaf node and coding the child nodes represented by leaf nodes of the binary tree with JVET, wherein coding efficiency is improved by taking advantage of the similarity of coding modes 2 and 66.
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公开(公告)号:US20220014771A1
公开(公告)日:2022-01-13
申请号:US17483465
申请日:2021-09-23
发明人: Krit PANUSOPONE , Seungwook HONG , Limin WANG
IPC分类号: H04N19/50 , H04N19/182 , H04N19/105 , H04N19/96 , H04N19/11 , H04N19/593 , H04N19/136 , H04N19/59 , H04N19/107 , H04N19/176 , H04N19/186 , H04N19/52 , H04N19/82
摘要: A method of decoding JVET video includes receiving a bitstream indicating how a coding tree unit was partitioned into coding units, and parsing said bitstream to generate at least one predictor based on an intra prediction mode signaled in the bitstream. The predictor may be generated by interpolating neighboring pixels for each pixel within a coding block. The computation may be more accurate by deriving a value for a bottom right neighboring pixel.
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