公开(公告)号：US20240022725A1

公开(公告)日：2024-01-18

申请号：US18476718

申请日：2023-09-28

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

Inventor： Yang Wang ,  Li Zhang ,  Kai Zhang ,  Zhipin Deng ,  Na Zhang

IPC: H04N19/124 ,  H04N19/70 ,  H04N19/159 ,  H04N19/186

CPC classification number: H04N19/124 ,  H04N19/70 ,  H04N19/159 ,  H04N19/186

Abstract: A method of processing video data includes selecting a first dependent quantization (DQ) parameter to be applied to a first video unit within a sequence; selecting a second DQ parameter to be applied to a second video unit within the sequence, wherein the second DQ parameter is different from the first DQ parameter; and converting between a video media file and a bitstream based on the first DQ parameter and the second DQ parameter that were selected. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.

公开(公告)号：US20230396777A1

公开(公告)日：2023-12-07

申请号：US18452287

申请日：2023-08-18

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

Inventor： Zhipin Deng ,  Kai Zhang ,  Li Zhang ,  Na Zhang ,  Yang Wang

IPC: H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/513

CPC classification number: H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/513

Abstract: A method for coding video data implemented by a video coding apparatus. The method includes filling an extended area disposed around a video unit with padding samples to generate a larger video unit. Some of the padding samples are generated without duplicating boundary samples within the video unit. The method further includes converting between the video unit of the video and a bitstream in accordance with the extended area as filled.

公开(公告)号：US20230396770A1

公开(公告)日：2023-12-07

申请号：US18453436

申请日：2023-08-22

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

Inventor： Kai Zhang ,  Li Zhang ,  Zhipin Deng ,  Na Zhang ,  Yang Wang

IPC: H04N19/126 ,  H04N19/30 ,  H04N19/176

CPC classification number: H04N19/126 ,  H04N19/30 ,  H04N19/176

Abstract: A mechanism for processing video data is disclosed. A scaling process is selected for application to a block during residual coding based on whether the block is dyadic or non-dyadic. The block has a width (W) and a height (H). A conversion is performed between a visual media data and a bitstream based on application of the scaling process to the block.

公开(公告)号：US20230388495A1

公开(公告)日：2023-11-30

申请号：US18447861

申请日：2023-08-10

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

Inventor： Kai Zhang ,  Li Zhang ,  Zhipin Deng ,  Na Zhang ,  Yang Wang

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/96 ,  H04N19/172 ,  H04N19/184

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

Abstract: A mechanism for processing video data is disclosed. A parent block is partitioned with an Extended Ternary-Tree (ETT) partition to create three sub-blocks. At least one of the sub-blocks includes a side with a measurement that is not a power of two. A conversion is performed between a visual media data and a bitstream based on the sub-blocks.

公开(公告)号：US20230353748A1

公开(公告)日：2023-11-02

申请号：US18348058

申请日：2023-07-06

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

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

IPC: H04N19/136 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/136 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

Abstract: A mechanism for processing video data is disclosed. One or more random access picture (RAP) picture identifiers are signaled for one or more Cross RAP Referencing (CRR) pictures. A conversion is performed between a visual media data and a bitstream based on the one or more RAP picture identifiers.

公开(公告)号：US20230247199A1

公开(公告)日：2023-08-03

申请号：US18295580

申请日：2023-04-04

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

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

IPC: H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/119 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176 ,  H04N19/70

Abstract: A method of video processing is provided to comprise: performing a conversion between a current video block of a video and a bitstream representation of the video, wherein, during the conversion, a use of a geometric partitioning mode is allowed for the current video block, and wherein parameters of the geometric partitioning mode are computed using a set of angles including a first number of angles that is less than a first threshold value and/or a set of distances including a second number of distances that is less than a second threshold value.

公开(公告)号：US20230156186A1

公开(公告)日：2023-05-18

申请号：US18090681

申请日：2022-12-29

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

Inventor： Yang Wang ,  Hongbin Liu ,  Li Zhang

IPC: H04N19/117 ,  H04N19/186 ,  H04N19/167

CPC classification number: H04N19/117 ,  H04N19/167 ,  H04N19/186

Abstract: Techniques for implementing adaptive loop filtering are described. One example method of video processing includes making a first determination, for a conversion between a video unit of a video and a bitstream of the video, a first luma adaptive loop filter, ALF, boundary across which a luma adaptive loop filter is selectively applied to a luma component of the video unit and a second luma ALF boundary; making a second determination, from the second luma ALF boundary, a chroma ALF boundary across which a chroma adaptive loop filter is selectively applied for a chroma component of the video unit; and performing the conversion based on the first determination and the second determination.

公开(公告)号：US11539946B2

公开(公告)日：2022-12-27

申请号：US17837216

申请日：2022-06-10

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

Inventor： Yang Wang ,  Li Zhang ,  Hongbin Liu ,  Kai Zhang ,  Zhipin Deng ,  Yue Wang

IPC: H04N19/00 ,  H04N19/117 ,  H04N19/96 ,  H04N19/186

Abstract: A method for video processing is described. The method includes determining, for a conversion between a video unit of a video and a bitstream representation of the video, whether to enable a mirrored padding process for padding an unavailable luma sample during an application of a loop filtering tool to the video unit; and performing the conversion based on the determining.

公开(公告)号：US20220394250A1

公开(公告)日：2022-12-08

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: H04N19/117 ,  H04N19/82 ,  H04N19/172 ,  H04N19/70

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：US11496751B2

公开(公告)日：2022-11-08

申请号：US17732813

申请日：2022-04-29

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

Inventor： Yang Wang ,  Li Zhang ,  Kai Zhang ,  Hongbin Liu ,  Yue Wang

IPC: H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/593 ,  H04N19/96

Abstract: A method of video processing includes deriving, for a conversion between a chroma block of a video and a bitstream representation of the video, parameters of a cross-component linear model by using downsampled luma samples that are generated from N above neighboring lines of a collocated luma block of the chroma block using a downsampling filter, where N is a positive integer; and performing the conversion using a predicted chroma block generated using the cross-component linear model.