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公开(公告)号：US20250168336A1
公开(公告)日：2025-05-22
申请号：US19033214
申请日：2025-01-21
Applicant: Douyin Vision Co., Ltd. , Bytedance Inc.
Inventor： Wenbin Yin , Kai Zhang , Li Zhang
IPC: H04N19/117 , H04N19/105 , H04N19/132 , H04N19/70 , H04N19/82
Abstract: A method of processing video data, comprising obtaining a non-adjacent reconstruction sample of a picture of a video, inputting the non-adjacent reconstruction sample of the picture as input for an adaptive loop filter (ALF), and performing a conversion between the video and a bitstream of the video based on the ALF.
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公开(公告)号：US20250150599A1
公开(公告)日：2025-05-08
申请号：US19019035
申请日：2025-01-13
Inventor： Zhipin DENG , Kai Zhang , Li Zhang
IPC: H04N19/159 , H04N19/117 , H04N19/139 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/82 , H04N19/86
Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: generating, for a conversion between a video unit of a video and a bitstream of the video, an intra mode for the video unit based on coding information associated with the video unit, wherein the video unit is an intra template matching (TM) coded block or the video unit is an intra copy block (IBC) coded block; and performing the conversion based on the generated intra mode.
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公开(公告)号：US20250150580A1
公开(公告)日：2025-05-08
申请号：US19018440
申请日：2025-01-13
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/30 , H04N19/517
Abstract: A video processing method includes deriving multiple temporal motion vector prediction (TMVP) candidates for a video block in a current picture based on multiple blocks associated with a second block in one or more pictures that are temporally co-located with the current picture, wherein the current picture is excluded from the one or more pictures, and the second block is temporally collocated with the video block, wherein the second block has a same size as the video block, and wherein a relative position of the second block to a top-left corner of a second picture of the one or more pictures is same as that of the video block to a top-left corner of the current picture; adding the multiple TMVP candidates to a motion candidate list associated with the video block; and performing a conversion between the video block and a bitstream.
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公开(公告)号：US20250142130A1
公开(公告)日：2025-05-01
申请号：US19010466
申请日：2025-01-06
Applicant: Bytedance Inc.
IPC: H04N19/85 , H04N19/176 , H04N19/186 , H04N19/70
Abstract: A mechanism for processing video data is disclosed. The mechanism determines to modify a video unit attendant to applying a video compression function. The modification may include applying a geometric conversion to the video unit. A conversion is performed between a visual media data and a bitstream based on the modified video unit.
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公开(公告)号：US12284354B2
公开(公告)日：2025-04-22
申请号：US18319658
申请日：2023-05-18
Inventor： Zhipin Deng , Kai Zhang , Li Zhang , Hongbin Liu , Jizheng Xu
IPC: H04N19/132 , H04N19/105 , H04N19/117 , H04N19/12 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/60 , H04N19/70 , H04N19/82
Abstract: Devices, systems, and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block according to a rule, where the rule specifies a relationship between applicability of a matrix based intra prediction (MIP) mode or a transform mode during the conversion, where the MIP mode includes determining a prediction block of the current video block by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation, and where the transform mode specifies use of a transform operation for the determining the prediction block for the current video block.
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Patent Agency Ranking
公开(公告)号：US20250119541A1
公开(公告)日：2025-04-10
申请号：US18984150
申请日：2024-12-17
Applicant: Bytedance Inc.
IPC: H04N19/117 , H04N19/186 , H04N19/70 , H04N19/82
Abstract: A method implemented by a video coding apparatus. The method includes applying a neural network (NN) filter to an unfiltered sample of a video unit to generate a filtered sample. The NN filter includes an NN filter model generated based on partitioning information of the video unit. Usage of the NN filter is indicated by one or more syntax elements in a bitstream. A conversion is performed between a video media file and a bitstream based on the filtered sample.
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公开(公告)号：US12273515B2
公开(公告)日：2025-04-08
申请号：US18521244
申请日：2023-11-28
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/117 , H04N19/124 , H04N19/157 , H04N19/186 , H04N19/196 , H04N19/70 , H04N19/86
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video and a bitstream of the video according to a format rule. The format rule specifies that a first field at a sequence level or a picture level or a slice level controls a value of a second field in an adaptation parameter set.
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公开(公告)号：US20250106394A1
公开(公告)日：2025-03-27
申请号：US18976455
申请日：2024-12-11
Inventor： Wenbin Yin , Kai Zhang , Li Zhang
IPC: H04N19/117 , H04N19/136 , H04N19/184 , H04N19/70
Abstract: A method for processing video data includes using one or more extended taps in an ALF or a CCALF and performing a conversion between a visual media data and a bitstream based on the extended taps used in the ALF. A syntax element structure in the bitstream contains one or more filters with at least one extended tap. A first syntax element is in the bitstream to indicate whether a filter with at least one extended tap is enabled.
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公开(公告)号：US20250088623A1
公开(公告)日：2025-03-13
申请号：US18928918
申请日：2024-10-28
Inventor： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/105 , H04N19/109 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/577
Abstract: A video coding or decoding method includes using history-based motion vector prediction (HMVP) for conversion between multiple video blocks including a current block of video and a bitstream representation of the multiple video blocks such that for a uni-predicted block that for which a single reference picture is used for motion compensation, and refraining from updating a look-up table for HMVP candidates for the uni-predicted block. The video coding or decoding method further includes performing the conversion using look-up tables for the multiple video blocks.
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公开(公告)号：US12238314B2
公开(公告)日：2025-02-25
申请号：US17386510
申请日：2021-07-27
Inventor： Jizheng Xu , Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC: H04N19/433 , H04N19/105 , H04N19/117 , H04N19/132 , H04N19/137 , H04N19/139 , H04N19/146 , H04N19/159 , H04N19/169 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/423 , H04N19/517 , H04N19/52 , H04N19/593 , H04N19/80 , H04N19/82 , H04N19/96 , H04N19/86
Abstract: A method of visual media processing is provided. The method includes determining a size of a buffer to store reference samples for prediction in an intra block copy mode, and performing a conversion between a current video block of visual media data and a bitstream of the current video block. The conversion is performed using the reference samples stored in the buffer, and in the intra block copy (IBC) mode. The IBC mode is based on motion information related to a reconstructed block located in same video region with the current video block without referring to a reference picture.
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