公开(公告)号：US11997294B2

公开(公告)日：2024-05-28

申请号：US18077831

申请日：2022-12-08

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang

IPC: H04N19/184 ,  H04N19/169 ,  H04N19/172 ,  H04N19/182 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/184 ,  H04N19/172 ,  H04N19/182 ,  H04N19/188 ,  H04N19/30 ,  H04N19/597 ,  H04N19/70

Abstract: A method of video data processing includes performing a conversion between a video and a bitstream of the video. The bitstream comprises multiple layers comprising one or more subpictures according to a rule which specifies that, during a subpicture sub-bitstream extraction process by which an output bitstream is extracted from the bitstream, a supplemental enhancement information network abstraction layer unit, SEI NAL unit, that includes a scalable nested SEI message that is not applicable to the output bitstream is omitted in the output bitstream.

公开(公告)号：US11991397B2

公开(公告)日：2024-05-21

申请号：US18071335

申请日：2022-11-29

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：US11991396B1

公开(公告)日：2024-05-21

申请号：US17965590

申请日：2022-10-13

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

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

IPC: H04N19/70 ,  H04N19/00 ,  H04N19/169 ,  H04N19/174 ,  H04N19/186

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

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 including one or more pictures and a bitstream of the video according to a format rule. The format rule specifies to include, in a general constrain syntax structure, a syntax element indicating whether each picture includes only one slice, and whether a picture header syntax structure is present in a slice header.

公开(公告)号：US11985357B2

公开(公告)日：2024-05-14

申请号：US17860634

申请日：2022-07-08

Applicant: Bytedance Inc.

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

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/159 ,  H04N19/169 ,  H04N19/174 ,  H04N19/184 ,  H04N19/187 ,  H04N19/44 ,  H04N19/46 ,  H04N19/82 ,  H04N19/91 ,  H04N19/117

CPC classification number: H04N19/82 ,  H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/187 ,  H04N19/188 ,  H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91 ,  H04N19/117

Abstract: Methods, devices and systems for video coding and encoding, which include constraints, restrictions and signaling for subpictures, slices, and tiles, are described. One example method of video processing includes performing a conversion between a video including one or more pictures and a bitstream of the video, wherein the bitstream conforms to a format rule, wherein the format rule conditionally allows coding of a picture in one layer using reference pictures from other layers based on a first syntax element indicating whether the reference pictures from the other layers are present in the bitstream, and wherein the first syntax element is conditionally signaled in the bitstream based on a second syntax element that indicates whether an identifier of a parameter set associated with the picture is not equal to zero.

公开(公告)号：US20240146971A1

公开(公告)日：2024-05-02

申请号：US18320722

申请日：2023-05-19

Applicant: Bytedance Inc.

Inventor： Li Zhang ,  Ye-kui Wang

IPC: H04N19/70 ,  H04N19/184 ,  H04N19/186

CPC classification number: H04N19/70 ,  H04N19/184 ,  H04N19/186

Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a video picture of a video comprising one or more slices and a bitstream of the video picture according to a rule. The rule specifies that that whether a first syntax element indicating a usage of a coding tool is present at a first level is based on a syntax flag indicating whether a syntax structure of a second level is not present at the first level, wherein the second level is higher than the first level, and wherein the second level is the video picture level or higher than the video picture level.

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：US11968405B2

公开(公告)日：2024-04-23

申请号：US17859826

申请日：2022-07-07

Applicant: Bytedance Inc.

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

IPC: H04N19/82 ,  H04N19/105 ,  H04N19/117 ,  H04N19/159 ,  H04N19/169 ,  H04N19/174 ,  H04N19/184 ,  H04N19/187 ,  H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

CPC classification number: H04N19/82 ,  H04N19/105 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/187 ,  H04N19/188 ,  H04N19/44 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91 ,  H04N19/117

Abstract: A method of video processing includes performing a conversion between a video including a picture and a bitstream of the video, wherein the bitstream conforms to a format rule, wherein the format rule specifies that an indication of whether a first flag is signalled at a beginning of a picture header associated with the picture, wherein the first flag is indicative of whether the picture is an intra random access point (IRAP) picture or a gradual decoding refresh (GDR) picture.

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.