公开(公告)号：US12170766B2

公开(公告)日：2024-12-17

申请号：US17958531

申请日：2022-10-03

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

Inventor： Zhipin Deng ,  Li Zhang ,  Ye-Kui Wang ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/117 ,  H04N19/124 ,  H04N19/186 ,  H04N19/196 ,  H04N19/70 ,  H04N19/86 ,  H04N19/157

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.

公开(公告)号：US12137252B2

公开(公告)日：2024-11-05

申请号：US18450647

申请日：2023-08-16

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

Inventor： Zhipin Deng ,  Li Zhang ,  Ye-Kui Wang ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/46 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/70

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 including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.

公开(公告)号：US20240129536A1

公开(公告)日：2024-04-18

申请号：US18396893

申请日：2023-12-27

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

Inventor： Ye-Kui Wang ,  Yang Wang ,  Li Zhang

IPC: H04N19/70 ,  H04N19/103 ,  H04N19/136 ,  H04N19/172 ,  H04N19/184

CPC classification number: H04N19/70 ,  H04N19/103 ,  H04N19/136 ,  H04N19/172 ,  H04N19/184

Abstract: A mechanism for processing video data is disclosed. A value of an extended dependent random-access point (EDRAP) leading pictures decodable flag (edrap_leading_pictures_decodable_flag) syntax element is determined. A conversion can then be performed between a visual media data and a bitstream based on the edrap_leading_pictures_decodable_flag syntax element. The value of the edrap_leading_pictures_decodable_flag indicates whether ordering constraints are imposed on the EDRAP picture.

公开(公告)号：US20230396809A1

公开(公告)日：2023-12-07

申请号：US18450647

申请日：2023-08-16

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

Inventor： Zhipin Deng ,  Li Zhang ,  Ye-Kui Wang ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/70 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46

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 including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.

公开(公告)号：US11792435B2

公开(公告)日：2023-10-17

申请号：US17962141

申请日：2022-10-07

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

Inventor： Zhipin Deng ,  Li Zhang ,  Ye-Kui Wang ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/46 ,  H04N19/70 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174

CPC classification number: H04N19/70 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46

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 including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.

公开(公告)号：US20230239511A1

公开(公告)日：2023-07-27

申请号：US18192098

申请日：2023-03-29

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

Inventor： Ye-Kui Wang ,  Li Zhang ,  Kai Zhang ,  Zhipin Deng

IPC: H04N19/70 ,  H04N19/187 ,  H04N19/136

CPC classification number: H04N19/70 ,  H04N19/187 ,  H04N19/136

Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field included in the bitstream indicates whether the bitstream comprises one or more video layers that represent auxiliary information.

公开(公告)号：US20230063674A1

公开(公告)日：2023-03-02

申请号：US17968958

申请日：2022-10-19

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

Inventor： Ye-Kui Wang ,  Li Zhang ,  Kai Zhang ,  Zhipin Deng

IPC: H04N19/70 ,  H04N19/46 ,  H04N19/176 ,  H04N19/174

Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a block of a video and a bitstream of the video according to a rule. The rule specifies that whether a syntax flag indicating whether transform skip residual coding is enabled at a video unit level is present in the bitstream is based on values of a first syntax element indicating usage of sign data hiding in the video unit and a second syntax element indicating usage of dependent quantization in the video unit.

公开(公告)号：US20230058538A1

公开(公告)日：2023-02-23

申请号：US17958531

申请日：2022-10-03

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

Inventor： Zhipin Deng ,  Li Zhang ,  Ye-Kui Wang ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/117 ,  H04N19/70 ,  H04N19/124 ,  H04N19/186 ,  H04N19/196

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.

公开(公告)号：US20230039617A1

公开(公告)日：2023-02-09

申请号：US17942618

申请日：2022-09-12

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

Inventor： Zhipin Deng ,  Ye-Kui Wang ,  Li Zhang ,  Kai Zhang

IPC: H04N19/12 ,  H04N19/176 ,  H04N19/70 ,  H04N19/157

Abstract: Methods, systems and apparatus for video processing are described. One example video processing method includes performing a conversion between a video including a video block and a bitstream of the video according to a rule, wherein the rule specifies whether to include, in a slice header (SH), a first syntax element that indicates whether a transform skip based residual coding is disabled for a slice, and wherein the rule specifies that whether to include the first syntax element in the SH is selectively based on a second syntax element in a sequence parameter set (SPS) that indicates whether a TS mode is enabled for the video block.

公开(公告)号：US12184845B2

公开(公告)日：2024-12-31

申请号：US17950443

申请日：2022-09-22

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

Inventor： Zhipin Deng ,  Li Zhang ,  Ye-Kui Wang ,  Kai Zhang ,  Jizheng Xu

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/132 ,  H04N19/139 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/52 ,  H04N19/70 ,  H04N19/80

Abstract: A method includes determining, for a conversion between a video block of a video and a bitstream of the video, a size of prediction block corresponding to the video block according to a rule. The method also includes performing the conversion based on the determining. The rule specifies that a first size of the prediction block is determined responsive to whether a prediction refinement using optical flow technique is used for coding the video block. The video block has a second size and is coded using an affine merge mode or an affine advanced motion vector prediction mode.