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公开(公告)号：US20220217334A1
公开(公告)日：2022-07-07
申请号：US17703725
申请日：2022-03-24
Inventor： Na ZHANG , Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/105 , H04N19/132 , H04N19/137 , H04N19/30 , H04N19/176
Abstract: A video processing method includes determining, for a conversion between a current video block of a video including multiple video blocks and a coded representation of the video, and from types of reference pictures used for the conversion, applicability of a coding tool to the current video block and performing the conversion based on the determining. The method may be performed by a video decoder or a video encoder or a video transcoder.
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公开(公告)号：US20220109827A1
公开(公告)日：2022-04-07
申请号：US17546717
申请日：2021-12-09
Inventor： Na ZHANG , Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/105 , H04N19/132 , H04N19/137 , H04N19/30 , H04N19/176
Abstract: A video processing method includes determining, for a conversion between a current video block of a video including multiple video blocks and a coded representation of the video, and from types of reference pictures used for the conversion, applicability of a coding tool to the current video block and performing the conversion based on the determining. The method may be performed by a video decoder or a video encoder or a video transcoder.
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公开(公告)号：US20220070483A1
公开(公告)日：2022-03-03
申请号：US17356175
申请日：2021-06-23
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Jizheng XU , Yue WANG , Na ZHANG
IPC: H04N19/46 , H04N19/159 , H04N19/105 , H04N19/176
Abstract: The present application relates to signaling of combined intra-inter prediction. A method for processing video includes: coding, during a conversion between a current video block in a video data and a bitstream representation of the current video block, a combined inter-intra prediction (CIIP) flag for the current video block by a context model based coding without referring to a CIIP flag of one or more neighboring video blocks to the current video block, and performing, at least by applying the combined inter-intra prediction (CIIP) flag of the current video block, the conversion.
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公开(公告)号：US20210274167A1
公开(公告)日：2021-09-02
申请号：US17322579
申请日：2021-05-17
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Jizheng XU , Yue WANG , Na ZHANG
IPC: H04N19/107 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/58
Abstract: The present application relates to extended application of combined intra-inter prediction. A method for processing video includes: storing a combined inter-intra prediction (CIIP) flag and/or intra mode of the CIIP mode with motion information in a history-based motion vector prediction (HMVP) table; and performing, at least based on the HMVP table, a conversion between a current block in a video data and a bitstream representation of the current block.
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公开(公告)号：US20210006788A1
公开(公告)日：2021-01-07
申请号：US17019834
申请日：2020-09-14
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG , Na ZHANG
IPC: H04N19/119 , H04N19/105 , H04N19/137 , H04N19/132 , H04N19/176
Abstract: Devices, systems and methods for digital video coding, which include geometric partitioning, are described. An exemplary method for video processing includes making a decision, based on a priority rule, regarding an order of insertion of motion candidates into a motion candidate list for a conversion between a current block of video and a bitstream representation of the video, wherein the current block is coded using a geometry partition mode; and performing, based on the decision and the motion candidate list, the conversion.
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Patent Agency Ranking
公开(公告)号：US20250126244A1
公开(公告)日：2025-04-17
申请号：US18991120
申请日：2024-12-20
Inventor： Na ZHANG , Kai Zhang , Jizheng Xu , Mehdi Salehifar , Li Zhang
IPC: H04N19/105 , H04N19/119 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, for a conversion between the current video block and a bitstream of the video, a target number for a set of intra block copy merge mode with block vector difference (IBC-MBVD) candidates, the target number being indicated in the bitstream and dependent on a target configuration of a coding process for coding the current video block; selecting, based on the target number, the set of IBC-MBVD candidates from a plurality of IBC-MBVD candidates associated with an intra block copy (IBC) base candidate for the current video block; and performing the conversion based on the set of IBC-MBVD candidates.
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公开(公告)号：US20240275984A1
公开(公告)日：2024-08-15
申请号：US18566932
申请日：2022-06-02
IPC: H04N19/147 , H04N19/176
CPC classification number: H04N19/147 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining a cost during a conversion between a current video block of a video and a bitstream of the video, the cost indicting a degree of distortion between two target blocks of the video and an amount of information for refinement of coding data of the current video block; refining the coding data based on the cost and the two target blocks; and performing the conversion based on the refined coding data. Compared with the conventional solution, the proposed method can advantageously reduce the coding bits while maintaining the coding quality.
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公开(公告)号：US20240259558A1
公开(公告)日：2024-08-01
申请号：US18636003
申请日：2024-04-15
IPC: H04N19/105 , H04N19/176 , H04N19/88
CPC classification number: H04N19/105 , H04N19/176 , H04N19/88
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, during a conversion between a target block of a video and a bitstream of the video, a list of regular merge candidates for the target block in a regular merge mode; reordering the list of regular merge candidates based on a determination whether a condition is satisfied to perform decoder-side motion vector refinement (DMVR) or multi-pass DMVR process for a regular merge candidate in the list of regular merge candidates; and performing the conversion based on the reordered list of regular merge candidates. Compared with the conventional solution, the proposed method can advantageously improve the coding effectiveness and coding efficiency.
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公开(公告)号：US20240205425A1
公开(公告)日：2024-06-20
申请号：US18286213
申请日：2022-04-08
Inventor： Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC: H04N19/176 , H04N19/139
CPC classification number: H04N19/176 , H04N19/139
Abstract: A method for video processing is proposed. The method comprises: constructing a list of merge candidates for a target block of a video in a subblock based merge mode: reordering the list of merge candidates for the target block; and performing a conversion between the target block and a bitstream of the video based on the reordered list of merge candidates. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
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公开(公告)号：US20240205414A1
公开(公告)日：2024-06-20
申请号：US18286211
申请日：2022-04-08
Inventor： Zhipin DENG , Li ZHANG , Kai ZHANG , Na ZHANG , Yang WANG
IPC: H04N19/139 , H04N19/119 , H04N19/176 , H04N19/70
CPC classification number: H04N19/139 , H04N19/119 , H04N19/176 , H04N19/70
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target block in a target picture of a video and a bitstream of the video, first motion information of the target block based on a regular merge mode, the first motion information comprising a regular merge list of regular merge candidates for the target block; determining second motion information from the first motion information based on a geometric partitioning-based merge mode and a redundancy check, the second motion information comprising a geometric partitioning-based merge list of geometric partitioning-based merge candidates for the target block; and performing the conversion based on the first motion information and the second motion information. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency and compression ratios.
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