Invention Grant
- Patent Title: Methods and apparatus of video coding using history-based motion vector prediction
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Application No.: US17149669Application Date: 2021-01-14
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Publication No.: US11575929B2Publication Date: 2023-02-07
- Inventor: Yi-Wen Chen , Xianglin Wang
- Applicant: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
- Current Assignee: BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: H04N19/52
- IPC: H04N19/52 ; H04N19/184 ; H04N19/96

Abstract:
A computing device performs a method of decoding video data by acquiring a video bitstream including data associated with multiple encoded pictures, each picture including multiple rows of coding tree units (CTUs) and each CTU including one or more coding units (CUs). A data buffer storing a plurality of history-based motion vector predictors is used for encoding the rows of CTUs and the decoding process resets the buffer before decoding a first CU of a current row of CTUs. For a current CU of the row of CTUs, a motion vector candidate list is constructed from exploiting spatial and temporal correlation of motion vectors of neighbouring code units as well as the history-based motion vector predictors in the buffer. Finally, one motion vector predictor is selected, from the motion vector candidate list, for decoding the current CU and the buffer is updated based on the selected one.
Public/Granted literature
- US20210136405A1 METHODS AND APPARATUS OF VIDEO CODING USING HISTORY-BASED MOTION VECTOR PREDICTION Public/Granted day:2021-05-06
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