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公开(公告)号：US20240155111A1
公开(公告)日：2024-05-09
申请号：US18412304
申请日：2024-01-12
Inventor： Na ZHANG , Zhipin DENG , Li ZHANG , Kai ZHANG
IPC: H04N19/105 , H04N19/119 , H04N19/139 , H04N19/176
CPC classification number: H04N19/105 , H04N19/119 , H04N19/139 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: constructing, during a conversion between a target block of a video and a bitstream of the target block, a motion candidate list for a target block which is coded with a geometric partitioning mode (GPM), the candidate list comprising one or more candidates; processing the candidate list before applying the candidate list, each candidate in the processed candidate list having a coded candidate index; and performing the conversion using the processed candidate list.
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Patent Agency Ranking
公开(公告)号：US20220124349A1
公开(公告)日：2022-04-21
申请号：US17356220
申请日：2021-06-23
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Jizheng XU , Yue WANG , Na ZHANG
IPC: H04N19/159 , H04N19/176 , H04N19/126
Abstract: The present application relates to improved weighting processing of combined intra-inter prediction. A method for processing video includes: determining, during a conversion between a current video block, which is coded in a combined intra and inter prediction (CIIP) mode, of a video and a bitstream representation of the current video block, a weight pair comprising a first weight for a first prediction result of the current video block and a second weight for a second prediction result of the current video block, based on one or more neighboring video blocks to the current video block, wherein the first prediction result is generated by an intra prediction mode and the second prediction result is generated by an inter prediction mode; and determining a prediction result of the current block based on a weighted sum of the first prediction result and the second prediction result.
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公开(公告)号：US20220070461A1
公开(公告)日：2022-03-03
申请号：US17523167
申请日：2021-11-10
Inventor： Li ZHANG , Kai ZHANG , Zhipin DENG , Hongbin LIU , Na ZHANG , Yue WANG
IPC: H04N19/124 , H04N19/12 , H04N19/127 , H04N19/167 , H04N19/176 , H04N19/70
Abstract: Devices, systems and methods for lossless coding for visual media coding are described. An exemplary method for video processing includes determining, based on a current video block of a video satisfying a dimension constraint, that coding modes are enabled for representing the current video block in a bitstream representation, where the dimension constraint states that a same set of allowed dimensions for the current video block is disabled for the coding modes, and where, for an encoding operation, the coding modes represent the current video block in the bitstream representation without using a transform operation, or where, for a decoding operation, the coding modes are used to obtain the current video block without using an inverse transform operation; and performing a conversion between the current video block and the bitstream representation of the video based on one of the coding modes.
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公开(公告)号：US20210051324A1
公开(公告)日：2021-02-18
申请号：US17087154
申请日：2020-11-02
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG , Na ZHANG
IPC: H04N19/119 , H04N19/176 , H04N19/159 , H04N19/139 , H04N19/52
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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公开(公告)号：US20250016361A1
公开(公告)日：2025-01-09
申请号：US18896485
申请日：2024-09-25
Applicant: Beijing Bytedance Network Technology Co., Ltd. , Bytedance
IPC: H04N19/52 , H04N19/105 , H04N19/157 , H04N19/176 , H04N19/58
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, for a conversion between a current video block of a video and a bitstream of the video, at least one history-based motion vector prediction (HMVP) table of the current video block based on at least one of the following: a motion vector (MV) difference threshold for comparing at least two MVs of at least two HMVP candidates, a coding mode of the current video block, or a reference picture list index associated with the current video block; and performing the conversion based on the at least one HMVP table.
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公开(公告)号：US20240275943A1
公开(公告)日：2024-08-15
申请号：US18566950
申请日：2022-06-02
IPC: H04N19/105 , H04N19/176
CPC classification number: H04N19/105 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: applying, during a conversion between a target video block of a video and a bitstream of the video, at least one refinement process to the target video block based on a cost. The cost depends on a plurality of reference samples corresponding to the target video block and a plurality of further samples corresponding to a template of the target video block. The method further comprises: performing the conversion between the target video block and the bitstream. Compared with the conventional solution, the proposed method can advantageously improve the coding effectiveness and coding efficiency.
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