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公开(公告)号：US11956448B2
公开(公告)日：2024-04-09
申请号：US18076869
申请日：2022-12-07
Inventor： Kai Zhang , Yuwen He , Li Zhang , Hongbin Liu , Tianliang Fu , Junru Li , Siwei Ma
IPC: H04N19/157 , H04N19/176 , H04N19/186
CPC classification number: H04N19/157 , H04N19/176 , H04N19/186
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of processing video data includes determining, for a conversion between a video block of a video and a bitstream of the video, a gradient of a prediction vector at a sub-block level for the video block according to a rule, wherein the rule specifies to use a same gradient value is assigned for all samples within a sub-block of the video block; and performing the conversion based on the determining.
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公开(公告)号：US20240129489A1
公开(公告)日：2024-04-18
申请号：US18511582
申请日：2023-11-16
Inventor： Kai Zhang , Yuwen He , Li Zhang , Hongbin Liu , Tianliang Fu , Junru Li , Siwei Ma
IPC: H04N19/157 , H04N19/176 , H04N19/186
CPC classification number: H04N19/157 , H04N19/176 , H04N19/186
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of processing video data includes determining, for a conversion between a video block of a video and a bitstream of the video, a gradient of a prediction vector at a sub-block level for the video block according to a rule, wherein the rule specifies to use a same gradient value is assigned for all samples within a sub-block of the video block; and performing the conversion based on the determining.
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公开(公告)号：US20240276020A1
公开(公告)日：2024-08-15
申请号：US18624889
申请日：2024-04-02
Applicant: Lemon Inc. , Beijing Bytedance Network Technology Co., Ltd. , Bytedance Inc. , Bytedance (HK) Limited
IPC: H04N19/82 , H04N19/117 , H04N19/70
CPC classification number: H04N19/82 , H04N19/117 , H04N19/70
Abstract: A method implemented by a video coding apparatus includes applying a neural network (NN) filter to an unfiltered sample of a video unit to generate a filtered sample. The NN filter is applied based on a syntax element of the video unit. The method also includes converting between a video media file and a bitstream based on the filtered sample that was generated.
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公开(公告)号：US20240007628A1
公开(公告)日：2024-01-04
申请号：US18468882
申请日：2023-09-18
IPC: H04N19/119 , H04N19/70 , H04N19/96 , H04N19/186 , H04N19/176 , H04N19/159
CPC classification number: H04N19/119 , H04N19/70 , H04N19/96 , H04N19/186 , H04N19/176 , H04N19/159
Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines usage of one or more of a separate tree coding and a partitioning beyond a minimum size threshold for a video unit. The mechanism also disables a cross-component coding tool for the video unit based on the determination. A conversion between a visual media data and a bitstream is performed in accordance with the coding tool being disabled.
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公开(公告)号：US20230262226A1
公开(公告)日：2023-08-17
申请号：US18304631
申请日：2023-04-21
Inventor： Hongbin Liu , Kai Zhang , Li Zhang , Yue Wang , Junru Li , Tianliang Fu , Siwei Ma
IPC: H04N19/132 , H04N19/159 , H04N19/176
CPC classification number: H04N19/132 , H04N19/159 , H04N19/176
Abstract: Methods, systems and devices for sample string processing in intra coding are described. An example method of video processing includes determining, for a conversion between a video comprising a current block and a bitstream of the video, whether a first sample string of the current block forms a rectangle, and performing, based on the determining, the conversion, wherein the determining is based on a position and a length of the first sample string.
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Patent Agency Ranking
公开(公告)号：US11917196B2
公开(公告)日：2024-02-27
申请号：US17651964
申请日：2022-02-22
Inventor： Junru Li , Meng Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang , Shiqi Wang
IPC: H04N19/70 , H04N19/593 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/186 , H04N19/169
CPC classification number: H04N19/593 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/186 , H04N19/1883
Abstract: A video processing method includes performing a conversion between a video comprising multiple video units and a coded representation of the video in which the multiple video units are processed in an order, where, when a video unit of the multiple video units is processed in the conversion, one or more frequence tables and/or one or more sorted intra prediction mode (IPM) tables are reset or initialized, where the one or more frequence tables include information about frequence of one or more intra prediction modes used for processing previous video units in the multiple video units, where the previous video units precede in time the video unit, where the frequence indicates an occurrence of the one or more intra prediction modes used for the conversion, and where the one or more sorted IPM tables indicate the one or more intra prediction modes used in the processing.
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公开(公告)号：US20240056570A1
公开(公告)日：2024-02-15
申请号：US18487350
申请日：2023-10-16
IPC: H04N19/117 , G06T9/00 , H04N19/186 , H04N19/82
CPC classification number: H04N19/117 , G06T9/002 , H04N19/186 , H04N19/82
Abstract: A method implemented by a video coding apparatus. The method includes applying a first filter to an unfiltered sample of a video unit to generate a filtered sample. The first filter is a neural network (NN) filter based on a non-deep learning-based filter (NDLF) being disabled, and the first filter is the NDLF based on the NN filter being disabled. The method also includes performing a conversion between a video media file and a bitstream based on the filtered sample that was generated.
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公开(公告)号：US20230262225A1
公开(公告)日：2023-08-17
申请号：US18303993
申请日：2023-04-20
IPC: H04N19/132 , H04N19/176 , H04N19/159
CPC classification number: H04N19/132 , H04N19/176 , H04N19/159
Abstract: Methods, systems and devices for video coding using sample string vectors are described. An example method of video processing includes determining, for a conversion between a video including a current block and a bitstream of the video, an availability of a block vector of one or more non-adjacent neighboring blocks of the current block for a prediction of a block vector of the current block according to a rule, and performing, based on the determining, the conversion, wherein the rule specifies a pre-defined order for checking the one or more non-adjacent neighboring blocks.
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公开(公告)号：US12294739B2
公开(公告)日：2025-05-06
申请号：US17651975
申请日：2022-02-22
Inventor： Junru Li , Meng Wang , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang , Shiqi Wang
IPC: H04N19/82 , H04N19/105 , H04N19/132 , H04N19/159 , H04N19/167 , H04N19/169 , H04N19/176 , H04N19/186 , H04N19/593
Abstract: A video processing method includes performing a conversion between a video including a video unit and a coded representation of the video, where, after the video unit is encoded or decoded with an intra prediction mode, one or more frequence tables and/or one or more sorted intra prediction mode (IPM) tables are selectively updated according to a rule, where the one or more frequence tables include information about frequence of the intra prediction mode used for processing the video unit in the conversion, where the frequence indicates an occurrence of the intra prediction mode used for the conversion, and where the one or more sorted IPM tables indicate the intra prediction mode used in the processing.
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公开(公告)号：US11949918B2
公开(公告)日：2024-04-02
申请号：US17720125
申请日：2022-04-13
Applicant: Lemon Inc. , Beijing Bytedance Network Technology Co., Ltd. , Bytedance INC. , Bytedance (HK) Limited
IPC: H04N19/82 , H04N19/117 , H04N19/176 , H04N19/70
CPC classification number: H04N19/82 , H04N19/117 , H04N19/70
Abstract: A method implemented by a video coding apparatus includes applying a neural network (NN) filter to an unfiltered sample of a video unit to generate a filtered sample. The NN filter is applied based on a syntax element of the video unit. The method also includes converting between a video media file and a bitstream based on the filtered sample that was generated.
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