公开(公告)号：US20240137526A1

公开(公告)日：2024-04-25

申请号：US18397033

申请日：2023-12-27

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

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

IPC: H04N19/157 ,  H04N19/124 ,  H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

CPC classification number: H04N19/157 ,  H04N19/124 ,  H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

Abstract: A mechanism for processing video data is disclosed. A value of an annotated region (AR) object label index of an i-th AR object index (ar_object_label_idx[ar_object_idx[i]]) syntax element is determined. The ar_object_label_idx[ar_object_idx[i]] syntax element is specified to be in a range of N to M, where N and M are integers and N is less than M. A conversion is performed between a visual media data and a bitstream based on the ar_object_label_idx[ar_object_idx[i]] syntax element.

公开(公告)号：US11968403B2

公开(公告)日：2024-04-23

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: H04N11/02 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/169 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60 ,  H04N19/70 ,  H04N19/85

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/188 ,  H04N19/1887 ,  H04N19/30 ,  H04N19/60 ,  H04N19/85

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：US20240129488A1

公开(公告)日：2024-04-18

申请号：US18397046

申请日：2023-12-27

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

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

IPC: H04N19/157 ,  H04N19/124 ,  H04N19/132 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

CPC classification number: H04N19/157 ,  H04N19/124 ,  H04N19/132 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/70

Abstract: A mechanism for processing video data is disclosed. A value of an i-th depth nonlinear representation model (depth_nonlinear_representation_model[i]) syntax element is determined. The depth_nonlinear_representation_model[i] syntax element is specified to be in a range of A to B, where A and B are integers and A is less than B. A conversion is performed between a visual media data and a bitstream based on the depth_nonlinear_representation_model[i] syntax element.

公开(公告)号：US11943439B2

公开(公告)日：2024-03-26

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: H04N19/00 ,  H04N19/12 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/60 ,  H04N19/85

CPC classification number: H04N19/12 ,  H04N19/176 ,  H04N19/186 ,  H04N19/197 ,  H04N19/60 ,  H04N19/85

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：US20240089504A1

公开(公告)日：2024-03-14

申请号：US18504317

申请日：2023-11-08

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

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

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

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

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：US11930219B2

公开(公告)日：2024-03-12

申请号：US17942880

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: H04N19/70 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/169 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60 ,  H04N19/85

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/188 ,  H04N19/1887 ,  H04N19/30 ,  H04N19/60 ,  H04N19/85

Abstract: A video processing method includes performing a conversion between a video comprising a video unit and a bitstream of the video according to a rule. The rule specifies whether or how to include, in an adaptation parameter set (APS), information related to a scaling list of the video is based on a first syntax element. The first syntax element indicates whether the APS includes chroma component related syntax elements and is independent of one or more syntax elements in a sequence parameter set (SPS).

公开(公告)号：US11902558B2

公开(公告)日：2024-02-13

申请号：US17957387

申请日：2022-09-30

Applicant: Bytedance Inc.

Inventor： Ye-Kui Wang ,  Li Zhang

IPC: H04N19/46 ,  H04N19/172 ,  H04N19/70 ,  H04N19/174 ,  H04N19/184

CPC classification number: H04N19/46 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/70

Abstract: Methods and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example video processing method includes performing a conversion between a video comprising a picture in a video unit and a bitstream of the video according to a format rule. The format rule specifies that, responsive to a width of a picture being equal to a maximum allowed picture width in the video unit and a height of the picture being equal to a maximum allowed picture height in the video unit, a conformance window flag in a picture parameter set corresponding to the picture is set to a zero value.

公开(公告)号：US20240040157A1

公开(公告)日：2024-02-01

申请号：US18483388

申请日：2023-10-09

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

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

IPC: H04N19/70 ,  H04N19/136 ,  H04N19/187 ,  H04N19/30 ,  H04N19/597

CPC classification number: H04N19/70 ,  H04N19/136 ,  H04N19/187 ,  H04N19/30 ,  H04N19/597

Abstract: A method implemented by a video coding apparatus. The method includes determining that a multiview acquisition information (MAI) supplemental enhancement information (SEI) message is present in a first access unit (AU) of a coded video sequence (CVS) whenever any MAI SEI message is present in any AU of the CVS; and performing a conversion between a video and a bitstream of the video based on the MAI SEI message. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.

公开(公告)号：US20240040135A1

公开(公告)日：2024-02-01

申请号：US18476650

申请日：2023-09-28

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

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

IPC: H04N19/34 ,  H04N19/70 ,  H04N19/184

CPC classification number: H04N19/34 ,  H04N19/70 ,  H04N19/184

Abstract: A method of processing video data includes using a scalability dimension information (SDI) supplemental enhancement information (SEI) message to indicate an SDI view identifier length minus L syntax element; and converting between a video media file and the bitstream based on the SDI SEI message. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.

公开(公告)号：US11856235B2

公开(公告)日：2023-12-26

申请号：US17942845

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: H04N19/70 ,  H04N19/17 ,  H04N19/186 ,  H04N19/117 ,  H04N19/136 ,  H04N19/169 ,  H04N19/30 ,  H04N19/12 ,  H04N19/157 ,  H04N19/176 ,  H04N19/124 ,  H04N19/132 ,  H04N19/172 ,  H04N19/174 ,  H04N19/60 ,  H04N19/85

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/188 ,  H04N19/1887 ,  H04N19/30 ,  H04N19/60 ,  H04N19/85

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 region and a bitstream of the video according to a rule, wherein the rule specifies that an adaptive loop filtering operation is allowed for the video region in response to an absence of one or more adaptation parameter set (APS) network abstraction layer (NAL) units that include adaptive loop filtering data.