Invention Application
- Patent Title: JOINT USE OF ADAPTIVE COLOUR TRANSFORM AND DIFFERENTIAL CODING OF VIDEO
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Application No.: US17842025Application Date: 2022-06-16
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Publication No.: US20220321916A1Publication Date: 2022-10-06
- Inventor: Weijia ZHU , Jizheng XU , Li ZHANG , Yue WANG
- Applicant: Beijing Bytedance Network Technology Co., Ltd. , Bytedance Inc.
- Applicant Address: CN Beijing; US CA Los Angeles
- Assignee: Beijing Bytedance Network Technology Co., Ltd.,Bytedance Inc.
- Current Assignee: Beijing Bytedance Network Technology Co., Ltd.,Bytedance Inc.
- Current Assignee Address: CN Beijing; US CA Los Angeles
- Priority: CNPCT/CN2019/126472 20191219
- Main IPC: H04N19/60
- IPC: H04N19/60 ; H04N19/105 ; H04N19/186 ; H04N19/176

Abstract:
Methods, systems and devices for implementing adaptive color transform (ACT) and block based delta pulse code modulation (BDPCM) during image/video encoding or decoding are described. An example method of video processing includes determining, for a conversion between a current video unit of a video that is a chroma video unit and a bitstream representation of the video, whether a block-based delta pulse code modulation (BDPCM) mode is available based on a rule, and performing the conversion based on the determining, wherein the rule is based on whether an adaptive color transform (ACT) mode is used for coding the current video unit and/or whether the BDPCM mode is used for coding a luma video unit corresponding to the current video unit.
Public/Granted literature
- US11863715B2 Joint use of adaptive colour transform and differential coding of video Public/Granted day:2024-01-02
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