公开(公告)号：US20240137572A1

公开(公告)日：2024-04-25

申请号：US18523427

申请日：2023-11-29

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

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

IPC: H04N19/70 ,  H04N19/169 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/70 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1883

Abstract: Methods, systems and apparatus for video processing are described. One example video processing method includes performing a conversion between a video comprising a video block and a bitstream of the video according to a rule, wherein the video block is a coding tree node that includes one or more coding units, and wherein the rule specifies that a coded information of the video block is indicative of whether a coding mode is enabled for the one or more coding units of the video block.

公开(公告)号：US11968384B2

公开(公告)日：2024-04-23

申请号：US17849293

申请日：2022-06-24

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

Inventor： Kai Zhang ,  Li Zhang ,  Hongbin Liu ,  Zhipin Deng ,  Jizheng Xu ,  Ye-kui Wang

IPC: H04N11/02 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/46 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: Devices, systems and methods related to digital video coding, and specifically, to signaling of slice types in video picture headers are described. One example method of video processing includes performing a conversion between a video including one or more video pictures including one or more slices and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that for a video picture of the one or more video pictures having all slices coded as I slices, P slice and B slice related syntax elements are omitted from a picture header for the video picture.

公开(公告)号：US11968375B2

公开(公告)日：2024-04-23

申请号：US17992192

申请日：2022-11-22

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

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

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

CPC classification number: H04N19/172 ,  H04N19/105 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/188 ,  H04N19/46 ,  H04N19/70 ,  H04N19/96

Abstract: Embodiments for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video comprising one or more video pictures comprising one or more subpictures and a bitstream of the video, wherein the conversion conforms to a rule that specifies that one or more parameters for a scaling window applicable to a subpicture are determined from one or more syntax elements during a subpicture sub-bitstream extraction process.

公开(公告)号：US20240129540A1

公开(公告)日：2024-04-18

申请号：US18517139

申请日：2023-11-22

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

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

IPC: H04N19/70 ,  H04N19/169 ,  H04N19/174 ,  H04N19/186 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/174 ,  H04N19/186 ,  H04N19/188 ,  H04N19/46

Abstract: Methods, systems, apparatus for video processing are described. The processing may include encoding, decoding or transcoding. One example video processing method includes performing a conversion between a video and a bitstream of the video according to a rule. The rule specifies that a syntax element is included in a profile, tier, level information syntax structure to indicate whether one or more general constraint information syntax elements are included in a general constraint information syntax structure and/or whether the general constraint information syntax structure is included in the profile, tier, level information syntax structure.

公开(公告)号：US11962814B2

公开(公告)日：2024-04-16

申请号：US17892866

申请日：2022-08-22

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

Inventor： Kai Zhang ,  Li Zhang ,  Ye-kui Wang ,  Zhipin Deng ,  Kui Fan ,  Jizheng Xu ,  Hongbin Liu

IPC: H04N19/96 ,  H04N19/119 ,  H04N19/129 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/70

CPC classification number: H04N19/96 ,  H04N19/119 ,  H04N19/129 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/70

Abstract: A method includes performing a conversion between a video including a video picture including one or more tiles and a bitstream of the video. The video picture refers to a picture parameter set, and the picture parameter set conforms to a format rule specifying that the picture parameter set includes a list of column widths for N tile columns, where N is an integer. An (N−1)-th tile column exists in the video picture and the (N−1)-th tile column has a width that is equal to an (N−1)-th entry in a list of explicitly included tile column widths plus one number of coding tree blocks.

公开(公告)号：US20240073457A1

公开(公告)日：2024-02-29

申请号：US18499485

申请日：2023-11-01

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

Inventor： Kai Zhang ,  Li Zhang ,  Yang Wang ,  Ye-kui Wang ,  Zhipin Deng ,  Jizheng Xu ,  Hongbin Liu

IPC: H04N19/70 ,  H04N19/117 ,  H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/186 ,  H04N19/46 ,  H04N19/635 ,  H04N19/82

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/186 ,  H04N19/46 ,  H04N19/635 ,  H04N19/82

Abstract: Methods, apparatus and systems for processing video are described. One example method includes performing a conversion between a video comprising a video unit and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a first syntax element indicating whether an in-loop filtering operation is performed across tile boundaries is selectively included in the bitstream responsive to whether or how the video unit is partitioned into tiles.

公开(公告)号：US20240073456A1

公开(公告)日：2024-02-29

申请号：US18498356

申请日：2023-10-31

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

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

IPC: H04N19/70 ,  H04N19/132 ,  H04N19/174 ,  H04N19/18

CPC classification number: H04N19/70 ,  H04N19/132 ,  H04N19/174 ,  H04N19/18

Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a video including a video unit and a bitstream of the video according to a rule. The rule specifies whether a transform skip residual coding operation is enabled for the video unit. One or more syntax elements are included in the bitstream at a video segment level indicative of whether the transform skip residual coding operation is enabled for the video unit.

公开(公告)号：US20240073430A1

公开(公告)日：2024-02-29

申请号：US18504661

申请日：2023-11-08

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

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

IPC: H04N19/172 ,  H04N19/105 ,  H04N19/169 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/46 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/172 ,  H04N19/105 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/188 ,  H04N19/46 ,  H04N19/70 ,  H04N19/96

Abstract: Embodiments for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video having one or more layers having one or more video pictures having one or more subpictures and a bitstream of the video according to a rule, in which the rule defines network abstraction layer (NAL) units to be extracted from a bitstream during a sub-bitstream extraction process to output a sub-bitstream, the rule further specifies that one or more inputs to the sub-bitstream extraction process include a target output layer set (OLS) index (targetOlsIdx) that identifies an OLS index of a target OLS and is equal to an index to a list of OLSs specified by a video parameter set, and the one or more inputs satisfy a set of conditions.

公开(公告)号：US11917208B2

公开(公告)日：2024-02-27

申请号：US17949938

申请日：2022-09-21

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

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

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/187 ,  H04N19/96 ,  H04N19/172 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/172 ,  H04N19/187 ,  H04N19/46 ,  H04N19/96

Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a subpicture in a video picture of a video and a bitstream of the video according to a rule. The rule specifies that multiple syntax elements are used to specify usage of a reference picture resampling tool.

公开(公告)号：US11825079B2

公开(公告)日：2023-11-21

申请号：US17886121

申请日：2022-08-11

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

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

IPC: H04N19/184 ,  H04N19/105 ,  H04N19/174 ,  H04N19/70 ,  H04N19/30 ,  H04N19/82 ,  H04N19/139 ,  H04N19/52 ,  H04N19/573 ,  H04N19/117 ,  H04N19/119 ,  H04N19/167 ,  H04N19/172 ,  H04N19/196 ,  H04N19/547 ,  H04N19/132

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/119 ,  H04N19/132 ,  H04N19/139 ,  H04N19/167 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/196 ,  H04N19/30 ,  H04N19/52 ,  H04N19/547 ,  H04N19/573 ,  H04N19/70 ,  H04N19/82

Abstract: Methods, apparatus, systems for video processing, including video encoding or video decoding are described. One example method includes determining an output sub-bitstream by extracting a sub-bitstream of one or more target subpictures from a bitstream of a video including video pictures. At least one of the video pictures includes one or more subpictures. The output sub-bitstream conforms to a format rule specifying that the one or more target subpictures is represented as a single subpicture in the output sub-bitstream.