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公开(公告)号：US20210029351A1
公开(公告)日：2021-01-28
申请号：US17071084
申请日：2020-10-15
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/105 , H04N19/159 , H04N19/513 , H04N19/176 , G06F1/03
Abstract: Devices, systems and methods for encoding and decoding digital video using historical information containing coding candidates are described. In a representative aspect, a method for video processing includes maintaining one or more tables of motion candidates during a conversion between a current video block and a bitstream representation of a video including the current video block, determining that the current video block is coded using a merge mode or an Advanced Motion Vector Prediction (AMVP) mode, and performing, based on the determining, the conversion between the current video block of and the bitstream representation of the video using one or more tables of motion candidates.
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公开(公告)号：US20250142080A1
公开(公告)日：2025-05-01
申请号：US19009826
申请日：2025-01-03
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG , Na ZHANG
IPC: H04N19/137 , H04N19/11 , H04N19/176 , H04N19/184 , H04N19/593
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 block of a video and a bitstream of the video, motion information of the current block based on motion information of a neighboring block of the current block and an intra block copy merge mode with block vector difference (IBC-MBVD) mode, the neighboring block being coded with a reconstruction-reordered intra block copy (RRIBC) mode; and performing the conversion based on the motion information of the current block.
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公开(公告)号：US20250126269A1
公开(公告)日：2025-04-17
申请号：US18991081
申请日：2024-12-20
Inventor： Na ZHANG , Jizheng XU , Kai ZHANG , Mehdi SALEHIFAR , Li ZHANG
IPC: H04N19/139 , H04N19/103 , H04N19/147 , H04N19/176 , H04N19/184
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 the current video block and a bitstream of the video, a target number for a set of motion candidates, the target number being smaller than or equal to an upper limit value; determining, based on the target number and a fast rate distortion optimization (RDO) process, the set of motion candidates from a plurality of motion candidates for an intra block copy (IBC) based mode for coding the current video block; and performing the conversion based on the set of motion candidates.
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公开(公告)号：US20250080719A1
公开(公告)日：2025-03-06
申请号：US18286210
申请日：2022-04-08
Inventor： Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/52 , H04N19/54
Abstract: Embodiments of the present disclosure provide a solution for video processing. 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 coding mode based on motion vector difference (MVD); 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：US20250039466A1
公开(公告)日：2025-01-30
申请号：US18913910
申请日：2024-10-11
IPC: H04N19/80 , H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: determining, for a conversion between a video unit of a video and a bitstream of the video, a chroma interpolation filter for the video unit using a discrete cosine transform interpolation filter (DCT-IF), wherein the number of taps of the chroma interpolation filter is larger than a predetermined number; obtaining a chroma prediction block by applying the chroma interpolation filter to a chroma component of the video unit; and performing the conversion based on the chroma prediction block.
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Patent Agency Ranking
公开(公告)号：US20250030866A1
公开(公告)日：2025-01-23
申请号：US18907218
申请日：2024-10-04
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/132 , H04N19/105 , H04N19/11 , H04N19/139 , H04N19/176 , H04N19/593
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: generating, for a conversion between a current video block of a video and a bitstream of the video, a motion candidate list for the current video block, an adjusting process being applied on a plurality of samples of the current video block; and performing the conversion based on the motion candidate list.
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公开(公告)号：US20250030864A1
公开(公告)日：2025-01-23
申请号：US18905875
申请日：2024-10-03
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/132 , H04N19/176 , H04N19/186 , H04N19/50
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, based on coded information of a current video block of a video for a conversion between the current video block and a bitstream of the video, whether an adjusting process is applied on a plurality of samples of the current video block; and performing the conversion based on the determination.
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公开(公告)号：US20240388693A1
公开(公告)日：2024-11-21
申请号：US18763948
申请日：2024-07-03
Inventor： Kai ZHANG , Li ZHANG , Zhipin DENG
IPC: H04N19/105 , H04N19/137 , 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, during a conversion between a target block of a video and a bitstream of the target block, motion information of a neighbor block of the target block; deriving a set of motion candidates for the target block based on the motion information and a set of affine parameters for the target block; and performing the conversion based on the set of motion candidates.
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公开(公告)号：US20240380922A1
公开(公告)日：2024-11-14
申请号：US18286194
申请日：2022-04-08
Inventor： Zhipin DENG , Kai ZHANG , Li ZHANG
IPC: H04N19/56 , H04N19/176 , H04N19/184
Abstract: It provides a solution for video processing. A method for video processing is proposed. The method comprises: determining motion information for a video block of a video by conducting a refinement process on at least one of a first merge candidate or a second merge candidate for the video block, the second merge candidate being generated based on the first merge candidate; and performing a conversion between the video block and a bitstream of the video based on the motion information. Compared with the conventional solution, the proposed method can advantageously improve the coding performance.
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公开(公告)号：US20240380879A1
公开(公告)日：2024-11-14
申请号：US18562257
申请日：2022-05-19
IPC: H04N19/105 , H04N19/159 , H04N19/176
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: processing, during a conversion between a picture of a video and a bitstream of the video, a first video block in the picture based on a combination of decoder-side intra prediction mode derivation (DIMD) and multiple reference line (MRL), at least one intra prediction mode (IPM) being derived from the DIMD, and at least one non-adjacent reference line of reconstructed samples for the first video block being used in the combination of the DIMD and the MRL; and performing the conversion based on the first video block. Compared with the conventional solution, the proposed method can advantageously improve the coding effectiveness and coding efficiency.
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