Invention Grant
- Patent Title: Video processing methods and apparatuses for sub-block motion compensation in video coding systems
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Application No.: US17041655Application Date: 2019-04-02
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Publication No.: US11381834B2Publication Date: 2022-07-05
- Inventor: Tzu-Der Chuang , Ching-Yeh Chen , Chen-Yen Lai , Chih-Wei Hsu
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsinchu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsinchu
- Agency: McClure, Qualey & Rodack, LLP
- International Application: PCT/CN2019/081061 WO 20190402
- International Announcement: WO2019/192491 WO 20191010
- Main IPC: H04N19/513
- IPC: H04N19/513 ; H04N19/105 ; H04N19/119 ; H04N19/159 ; H04N19/176 ; H04N19/533

Abstract:
Video processing methods and apparatuses for coding a current block comprise receiving input data of a current block, partitioning the current block into multiple sub-blocks, deriving sub-block MVs for the current block according to a sub-block motion compensation coding tool, constraining the sub-block MVs to form constrained sub-block MVs, and encoding or decoding the current block using the constrained sub-block MVs. The sub-block MVs may be constrained according to a size, width, or height of the current block or a sub-block, an inter prediction direction of one of control point MVs of the current block, the current block, or current sub-block, the control point MVs, or a combination of the above.
Public/Granted literature
- US20210160527A1 Video Processing Methods and Apparatuses for Sub-block Motion Compensation in Video Coding Systems Public/Granted day:2021-05-27
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