Invention Application
- Patent Title: Quantized Residual Differential Pulse Code Modulation Representation Of Coded Video
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Application No.: US17881197Application Date: 2022-08-04
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Publication No.: US20220385916A1Publication Date: 2022-12-01
- Inventor: Weijia Zhu , Li Zhang , Jizheng Xu , Hsiao Chiang Chuang
- Applicant: Bytedance, Inc.
- Applicant Address: US CA Los Angeles
- Assignee: Bytedance, Inc.
- Current Assignee: Bytedance, Inc.
- Current Assignee Address: US CA Los Angeles
- Priority: CNPCT/CN2019/084008 20190424
- Main IPC: H04N19/132
- IPC: H04N19/132 ; H04N19/159 ; H04N19/176 ; H04N19/186 ; H04N19/70 ; H04N19/11 ; H04N19/124 ; H04N19/182 ; H04N19/593

Abstract:
Video coding and decoding methods are described. An example method includes determining, based on an applicability rule, that a differential coding mode is applicable to a conversion between a chroma video block of a video and a bitstream representation of the chroma video block, and performing, based on the determining, the conversion between the chroma video block and the bitstream representation of the chroma video block using the differential coding mode, where the chroma video block is represented in the bitstream representation using a difference between a quantized residual of an intra prediction of the chroma video block and a prediction of the quantized residual in the differential coding mode, where the intra prediction is performed in a first direction and the prediction of the quantized residual is performed in a second direction, and where the difference is represented using a differential pulse coding modulation (DPCM) representation.
Public/Granted literature
- US11985323B2 Quantized residual differential pulse code modulation representation of coded video Public/Granted day:2024-05-14
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