Invention Grant
- Patent Title: Mode dependent motion vector difference precision set
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Application No.: US16940959Application Date: 2020-07-28
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Publication No.: US11412227B2Publication Date: 2022-08-09
- Inventor: Hongbin Liu , Li Zhang , Kai 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
- Agency: Perkins Coie LLP
- Priority: WOPCT/CN2018/091792 20180619
- Main IPC: H04N19/139
- IPC: H04N19/139 ; H04N19/52 ; H04N19/513 ; H04N19/523 ; H04N19/107 ; H04N19/176

Abstract:
A method of processing a video bitstream includes determining a motion precision set based on coding information of a current block. A conversion between a video block and a coded representation of the video block is performed based on the motion precision set. The conversion corresponds to a reconstruction of the current block. In some example aspects, a motion vector difference (MVD) precision of a current block from a motion precision set is determined based on a selected motion precision set and a MVD precision index. A conversion between a video block and a coded representation of the video block using an MVD is performed based on the MVD precision. The MVD represents a difference between a predicted motion vector and an actual motion vector used during motion compensation processing.
Public/Granted literature
- US11477458B2 Mode dependent motion vector difference precision set Public/Granted day:2022-10-18
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