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Title:
METHOD AND APPARATUS OF VIDEO CODING WITH AFFINE MOTION COMPENSATION
Document Type and Number:
WIPO Patent Application WO/2017/157259
Kind Code:
A1
Abstract:
A method and apparatus for video encoding and decoding with affine motion compensation are disclosed. An embodiment of the method receives input data associated with a current block coded or to be coded in an affine mode. Two or more motion vectors of a neighboring block are retrieved from a buffer, where at least one of the retrieved motion vectors is not corresponding to a sub-block in a first neighboring block row or a first neighboring block column. The method derives an affine candidate including affine motion vectors using the retrieved two or more motion vectors, and encodes or decodes the current block by predicting the current block using one or more motion compensated blocks by the derived affine candidate. The buffer for affine candidate derivation stores selective motion vectors less than all motion vectors of coded blocks in the current picture.

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Inventors:
CHUANG TZU-DER (CN)
CHEN CHING-YEH (CN)
HUANG HAN (CN)
XU XIAOZHONG (US)
LIU SHAN (US)
Application Number:
PCT/CN2017/076420
Publication Date:
September 21, 2017
Filing Date:
March 13, 2017
Export Citation:
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Assignee:
MEDIATEK INC (CN)
International Classes:
H04N19/105
Foreign References:
CN105163116A2015-12-16
US20140341290A12014-11-20
JP2015056043A2015-03-23
Other References:
HUANG H. ET AL., AFFINE SKIP AND DIRECT MODES FOR EFFICIENT VIDEO CODING
ZOU R. ET AL., AN ADAPTIVE MOTION DATA STORAGE REDUCTION METHOD FOR TEMPORAL PREDICTOR
"Affine transform prediction for next generation video coding", HUAWEI TECHNOLOGIES CO.
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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