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：US20250039392A1

公开(公告)日：2025-01-30

申请号：US18900339

申请日：2024-09-27

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

Inventor： Kai ZHANG ,  Li Zhang ,  Zhipin Deng

IPC: H04N19/137 ,  H04N19/176

Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: deriving, during a conversion between a video unit of a video and a bitstream of the video unit, a first motion candidate for the video unit based on a first position of a first block of the video; deriving a second motion candidate for the video unit based on a second position of a second block of the video, and wherein the first position and the second position satisfy a position condition; and performing the conversion based on the first and second motion candidates.

公开(公告)号：US12126808B2

公开(公告)日：2024-10-22

申请号：US17977565

申请日：2022-10-31

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

Inventor： Zhipin Deng ,  Li Zhang ,  Hongbin Liu

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

Abstract: Restrictions on motion vector difference (MVD) are disclosed. In one example method of video processing, performing a conversion between a first block of video and a bitstream representation of the first block based on a constrained MVD component associated with the first block, wherein a value of the MVD component is constrained in a predetermined range of [−2M, 2M−1], where M=17.

公开(公告)号：US20240314327A1

公开(公告)日：2024-09-19

申请号：US18647777

申请日：2024-04-26

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

Inventor： Zhipin Deng ,  Li Zhang ,  Hongbin Liu

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

CPC classification number: H04N19/137 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176

Abstract: Restrictions on motion vector difference (MVD)are disclosed. In one example method of video processing, performing a conversion between a first block of video and a bitstream representation of the first block based on a constrained signaled MVD component associated with the first block, wherein value of the signaled motion vector difference component is constrained in a predetermined range.

公开(公告)号：US20240297982A1

公开(公告)日：2024-09-05

申请号：US18649733

申请日：2024-04-29

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

Inventor： Zhipin Deng ,  Kai Zhang ,  Li Zhang

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/169 ,  H04N19/172 ,  H04N19/176 ,  H04N19/189 ,  H04N19/593

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/1883 ,  H04N19/189 ,  H04N19/593

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a target video block of a video and a bitstream of the video, a first prediction of the target video block by using an inter prediction tool; determining a second prediction by performing a motion compensation process on the first prediction; obtaining a third prediction by performing a forward mapping process on the second prediction; and performing the conversion based on the third prediction.

公开(公告)号：US12081801B2

公开(公告)日：2024-09-03

申请号：US17942432

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: H04N19/136 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  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 comprising a luma block and a bitstream of the video according to a rule. The rule specifies that whether a slice header (SH) includes a first syntax element is based on a second syntax element. The first syntax element indicates whether use of a delta quantization parameter (QP) is enabled for one or more coding units (CUs) of a specific slice of the luma block.

公开(公告)号：US12069278B2

公开(公告)日：2024-08-20

申请号：US18181151

申请日：2023-03-09

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

Inventor： Jizheng Xu ,  Zhipin Deng ,  Li Zhang ,  Hongbin Liu ,  Kai Zhang

IPC: H04N19/157 ,  H04N9/64 ,  H04N19/109 ,  H04N19/119 ,  H04N19/159 ,  H04N19/169 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/503

CPC classification number: H04N19/157 ,  H04N9/64 ,  H04N19/109 ,  H04N19/119 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/46 ,  H04N19/503

Abstract: A method of video processing is described. The method includes determining, for a conversion between a current video block of a video and a coded representation of the video, whether a certain partitioning scheme is allowed for the current video block according to a rule that depends on a coding mode type used for representing the current video block in the coded representation and a dimension of the current video block; and performing the conversion based on the determining.

公开(公告)号：US12010333B2

公开(公告)日：2024-06-11

申请号：US18083956

申请日：2022-12-19

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

Inventor： Zhipin Deng ,  Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Jizheng Xu

IPC: H04N19/30 ,  H04N19/105 ,  H04N19/132 ,  H04N19/146 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/30 ,  H04N19/105 ,  H04N19/132 ,  H04N19/146 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/70 ,  H04N19/96

Abstract: A method for visual media processing, including performing a conversion between a current chroma video block of visual media data and a bitstream representation of the current chroma video block. During the conversion, a chroma residual of the current chroma video block is scaled based on a scaling coefficient. The scaling coefficient is derived at least based on luma samples located in predefined positions.

公开(公告)号：US12010317B2

公开(公告)日：2024-06-11

申请号：US17962861

申请日：2022-10-10

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

Inventor： Jizheng Xu ,  Zhipin Deng ,  Li Zhang ,  Hongbin Liu ,  Kai Zhang

IPC: H04N19/132 ,  H04N9/70 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: A method of video processing includes performing a conversion between a video including a video region and a bitstream of the video according to a rule. The rule specifies a relationship between enablement of a palette mode and a coding type of the video region. The video region may represent a coding block of the video.

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.