公开(公告)号：US20220400284A1

公开(公告)日：2022-12-15

申请号：US17887283

申请日：2022-08-12

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

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

IPC: H04N19/547 ,  H04N19/70 ,  H04N19/174

Abstract: A method includes performing a conversion between a video comprising a video picture that includes one or more subpictures and a bitstream of the video according to a format rule. The format rule specifies that whether each of the one or more subpictures in the video picture includes a single slice is determined based on a constraint flag.

公开(公告)号：US20220377333A1

公开(公告)日：2022-11-24

申请号：US17867284

申请日：2022-07-18

Applicant: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD. ,  Bytedance Inc.

Inventor： Weijia Zhu ,  Jizheng Xu ,  Li Zhang ,  Kai Zhang ,  Ye-kui Wang ,  Yue Wang

IPC: H04N19/12 ,  H04N19/60 ,  H04N19/176 ,  H04N19/85 ,  H04N19/196 ,  H04N19/186

Abstract: A method for implementing an adaptive colour transform (ACT) mode during image/video encoding and decoding includes performing a conversion between a current video block of a video and a bitstream of the video, wherein the current video block is coded using the ACT mode, wherein the conversion comprises applying an inverse ACT transform on the current video block according to a rule, and wherein the rule specifies that a clipping operation, based on a bit depth of the current video block, is applied to an input of the inverse ACT transform.

公开(公告)号：US12231659B2

公开(公告)日：2025-02-18

申请号：US17990247

申请日：2022-11-18

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

Inventor： Ye-kui Wang ,  Zhipin Deng

IPC: H04N19/196 ,  H04N19/117 ,  H04N19/167 ,  H04N19/172 ,  H04N19/70 ,  H04N19/82

Abstract: Methods, apparatus, systems for performing video processing such as video encoding, video decoding, or video transcoding are described. One example method of video processing includes performing a conversion between a video comprising one or more video layers and a bitstream of the video according to a rule. The rule specifies that responsive to a value of a first field in a sequence parameter set (SPS) that is referred to by a video layer, a second field in a video parameter set referred to by the SPS that is indicative of a maximum number of sublayers allowed in the bitstream is construed to be equal to a third field in the SPS. The third field is indicative of a maximum number of sublayers allowed in the video layer.

公开(公告)号：US12010295B2

公开(公告)日：2024-06-11

申请号：US17886104

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: H04N19/105 ,  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

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 performing a conversion between a video including a video picture that includes a video slice and a bitstream of the video. The bitstream conforms to a format rule specifying that a slice type of the video slice determines a manner by which certain information from a picture header for the video picture is inherited by a slice header of the video slice.

公开(公告)号：US20240137571A1

公开(公告)日：2024-04-25

申请号：US18520226

申请日：2023-11-27

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

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

IPC: H04N19/70 ,  H04N19/169 ,  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：US11917169B2

公开(公告)日：2024-02-27

申请号：US17882359

申请日：2022-08-05

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

Inventor： Jizheng Xu ,  Li Zhang ,  Ye-kui Wang ,  Kai Zhang ,  Weijia Zhu ,  Yue Wang ,  Yang Wang ,  Hongbin Liu

IPC: H04N19/186 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

CPC classification number: H04N19/186 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/96

Abstract: Video processing methods, systems and apparatus are described. One example method includes performing a conversion between a video block of a video and a bitstream of the video using a palette mode in which samples of the video block are represented using a palette of representative color values. A size of the palette of the video block is determined based on whether a local dual tree is applied for the conversion.

公开(公告)号：US11889119B2

公开(公告)日：2024-01-30

申请号：US17897943

申请日：2022-08-29

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

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

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/11 ,  H04N19/122 ,  H04N19/132 ,  H04N19/139 ,  H04N19/186 ,  H04N19/61 ,  H04N19/107 ,  H04N19/172 ,  H04N19/174 ,  H04N19/169 ,  H04N19/30 ,  H04N19/117 ,  H04N19/196

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/132 ,  H04N19/139 ,  H04N19/172 ,  H04N19/174 ,  H04N19/186 ,  H04N19/188 ,  H04N19/196 ,  H04N19/30 ,  H04N19/61

Abstract: Methods, systems, and apparatuses for video processing are described. A method for processing video includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that values of one or more general constraint flags at a first level in the bitstream control occurrence of one or more syntax elements at a sequence parameter set (SPS) level or a picture header (PH) level or a slice header (SH) level.

公开(公告)号：US11825124B2

公开(公告)日：2023-11-21

申请号：US17990267

申请日：2022-11-18

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

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

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30

Abstract: Video processing, including video coding, video decoding and video transcoding, is described. One example method includes performing a conversion between a video comprising a video picture and a bitstream of a video according to a rule, where the rule specifies that syntax elements indicate a first width and a first height of a scaling window for the video picture, and where the rule specifies that a range of permissible values for the syntax elements include values greater than or equal to two times a second width of the video picture and two times a second height of the video picture.

公开(公告)号：US11825123B2

公开(公告)日：2023-11-21

申请号：US17888227

申请日：2022-08-15

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 ,  H04N19/174 ,  H04N19/186 ,  H04N19/46 ,  H04N19/117 ,  H04N19/172 ,  H04N19/82 ,  H04N19/119 ,  H04N19/635

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

Abstract: A 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 based on whether or how the video unit is partitioned into tiles.

公开(公告)号：US20230111133A1

公开(公告)日：2023-04-13

申请号：US17896532

申请日：2022-08-26

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 ,  H04N19/18 ,  H04N19/174

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, wherein the rule specifies whether a transform skip residual coding operation is enabled for the video unit, and wherein 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.