公开(公告)号：US12047558B2

公开(公告)日：2024-07-23

申请号：US17665275

申请日：2022-02-04

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Kai Zhang ,  Zhipin Deng ,  Hongbin Liu ,  Li Zhang ,  Jizheng Xu

IPC: H04N19/105 ,  H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/157 ,  H04N19/167 ,  H04N19/169 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/157 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/30 ,  H04N19/70

Abstract: A method of video processing includes performing a conversion between a video unit of a video and a coded representation of the video using at least a video picture. Only one of a sub-picture coding mode or a resolution-changing coding mode is enabled for the video unit. The sub-picture coding mode is a mode in which the video picture is divided into multiple sub-pictures, and the resolution-changing coding mode is a mode in which a resolution of the video picture is adjusted during the conversion.

公开(公告)号：US20240244201A1

公开(公告)日：2024-07-18

申请号：US18620827

申请日：2024-03-28

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Wenbin YIN ,  Kai Zhang ,  Li Zhang

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/80

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/80

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing comprises: determining, during a conversion between a current video block of a video and a bitstream of the video, a first filter shape from a plurality of filter shapes; determining, based on the first filter shape, a first filter for coding a first sample of the current video block, a value of a clip parameter of the first filter being dependent on the first filter shape; and performing the conversion based on the first filter. Compared with the conventional solution, the proposed method can advantageously improve the performance of the filtering tool.

公开(公告)号：US20240236327A1

公开(公告)日：2024-07-11

申请号：US18414665

申请日：2024-01-17

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Chaoyi Lin ,  Yue Li ,  Kai Zhang ,  Li Zhang

IPC: H04N19/132 ,  H04N19/117 ,  H04N19/186 ,  H04N19/42 ,  H04N19/70 ,  H04N19/80

CPC classification number: H04N19/132 ,  H04N19/117 ,  H04N19/186 ,  H04N19/42 ,  H04N19/70 ,  H04N19/80

Abstract: A video processing method includes determining information included in a bitstream that indicates whether down-sampling is performed on a video unit, and performing a conversion between the video unit and the bitstream based on the bitstream.

公开(公告)号：US20240236325A9

公开(公告)日：2024-07-11

申请号：US18399926

申请日：2023-12-29

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Chaoyi Lin ,  Yue Li ,  Kai Zhang ,  Zhaobin Zhang ,  Li Zhang

IPC: H04N19/132 ,  H04N19/154 ,  H04N19/186

CPC classification number: H04N19/132 ,  H04N19/154 ,  H04N19/186 ,  H04N19/625

Abstract: A method of processing video data. The method includes down-sampling a video unit of a video prior to application of a super resolution (SR) process and performing a conversion between the video including the video unit and a bitstream of the video based on the video unit as down-sampled. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.

公开(公告)号：US20240236318A9

公开(公告)日：2024-07-11

申请号：US18400326

申请日：2023-12-29

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Kai Zhang ,  Li Zhang ,  Zhipin Deng ,  Na Zhang ,  Yang Wang

IPC: H04N19/119 ,  H04N19/103 ,  H04N19/136 ,  H04N19/169 ,  H04N19/61 ,  H04N19/70

CPC classification number: H04N19/119 ,  H04N19/103 ,  H04N19/136 ,  H04N19/1883 ,  H04N19/61 ,  H04N19/70

Abstract: A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines to split a coding tree unit (CTU) into one or more coding units (CUs). One or more of the CUs may be one or more prediction tree units (PTUs). The mechanism further determines to recursively split the CUs into prediction units (PUs). The method performs a conversion between a visual media data and a bitstream based on the PUs.

公开(公告)号：US12034942B2

公开(公告)日：2024-07-09

申请号：US17873973

申请日：2022-07-26

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Zhipin Deng ,  Li Zhang ,  Hongbin Liu ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/176 ,  H04N19/186 ,  H04N19/593

CPC classification number: H04N19/186 ,  H04N19/593

Abstract: A method for visual media processing, including: using a rule that specifies representing, based on a fixed value, a chroma residual scaling factor for at least one chroma block associated with a current video unit of visual media data, wherein the fixed value is based at least on one or more conditions; and performing a conversion between the current video unit and a bitstream representation of the current video unit.

公开(公告)号：US12034914B2

公开(公告)日：2024-07-09

申请号：US17540122

申请日：2021-12-01

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Yue Wang

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/105 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/436 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: A method of video processing includes maintaining tables, wherein each table includes a set of motion candidates and each motion candidate is associated with corresponding motion information; and performing a conversion between a first video block and a bitstream representation of a video including the first video block based on at least some of tables, the performing including checking motion candidates in a table in an order defined in a rule until a checking termination criteria is met.

公开(公告)号：US12022114B2

公开(公告)日：2024-06-25

申请号：US18295553

申请日：2023-04-04

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Zhipin Deng ,  Kai Zhang ,  Li Zhang ,  Hongbin Liu ,  Jizheng Xu

IPC: H04N19/59 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/40 ,  H04N19/70

CPC classification number: H04N19/59 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/40 ,  H04N19/70

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 first determination whether a luma video block of a video is coded using a matrix based intra prediction (MIP) mode; performing a second determination that the luma video block is applicable for determining a chroma intra mode for a current chroma video block of the video; performing, based on the first determination and the second determination, a third determination about the chroma intra mode to be used for the current chroma video block; and performing, based on the third determination, a conversion between the current chroma video block and a bitstream representation of the current chroma video block.

公开(公告)号：US12022062B2

公开(公告)日：2024-06-25

申请号：US18081404

申请日：2022-12-14

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Kai Zhang ,  Zhipin Deng ,  Hongbin Liu ,  Li Zhang ,  Jizheng Xu

IPC: H04N19/105 ,  H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/157 ,  H04N19/167 ,  H04N19/169 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/157 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/30 ,  H04N19/70

Abstract: A method of video processing includes performing a conversion between a video unit of a video and a coded representation of the video using at least a video picture. Only one of a subpicture coding mode or a resolution-changing coding mode is enabled for the video unit. The subpicture coding mode is a mode in which the video picture is divided into multiple subpictures, and the resolution-changing coding mode is a mode in which a resolution of the video picture is adjusted during the conversion.

公开(公告)号：US20240187639A1

公开(公告)日：2024-06-06

申请号：US18529560

申请日：2023-12-05

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Yue Wang

IPC: H04N19/52 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/56

CPC classification number: H04N19/52 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/56

Abstract: A method of video processing is provided to include maintaining one or more tables, wherein each table includes one or more motion candidates and each motion candidate is associated with corresponding motion information; performing a conversion between a current block and a bitstream representation of a video including the current block by using motion information in a table; and updating, after performing of the conversion, one or more tables based on M sets of additional motion information associated with the current block, M being an integer.