Title:
VIDEO PROCESSING METHODS AND APPARATUSES FOR SUB-BLOCK MOTION COMPENSATION IN VIDEO CODING SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2019/192491
Kind Code:
A1
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.
Inventors:
CHUANG TZU-DER (CN)
CHEN CHING-YEH (CN)
LAI CHEN-YEN (CN)
HSU CHIH-WEI (CN)
CHEN CHING-YEH (CN)
LAI CHEN-YEN (CN)
HSU CHIH-WEI (CN)
Application Number:
PCT/CN2019/081061
Publication Date:
October 10, 2019
Filing Date:
April 02, 2019
Export Citation:
Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/513
Foreign References:
| CN104885458A | 2015-09-02 | |||
| US20040165781A1 | 2004-08-26 | |||
| CN1168062A | 1997-12-17 | |||
| US20130230099A1 | 2013-09-05 | |||
| CN102907095A | 2013-01-30 | |||
| US20140321549A1 | 2014-10-30 |
Other References:
JIANLE CHEN ET AL.: "Algorithm Description of Joint Exploration Test Model 7 (JEM 7", JVET MEETING, TORINO
See also references of EP 3766247A4
See also references of EP 3766247A4
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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