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1. (WO2017157259) METHOD AND APPARATUS OF VIDEO CODING WITH AFFINE MOTION COMPENSATION

Pub. No.:    WO/2017/157259    International Application No.:    PCT/CN2017/076420
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Tue Mar 14 00:59:59 CET 2017
IPC: H04N 19/105
Applicants: MEDIATEK INC.
Inventors: CHUANG, Tzu-Der
CHEN, Ching-Yeh
HUANG, Han
XU, Xiaozhong
LIU, Shan
Title: METHOD AND APPARATUS OF VIDEO CODING WITH AFFINE MOTION COMPENSATION
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.