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1. (WO2017054630) IMAGE PREDICTION METHOD AND DEVICE

Pub. No.:    WO/2017/054630    International Application No.:    PCT/CN2016/098464
Publication Date: Fri Apr 07 01:59:59 CEST 2017 International Filing Date: Fri Sep 09 01:59:59 CEST 2016
IPC: H04N 19/105
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: CHEN, Huanbang
陈焕浜
LIN, Sixin
林四新
ZHANG, Hong
张红
Title: IMAGE PREDICTION METHOD AND DEVICE
Abstract:
Embodiments of the present invention provide an image prediction method and device. The image prediction method comprises: determining, according to information of an image unit adjacent to an image unit to be processed, whether a set of candidate prediction modes for the image unit to be processed comprises an affine transformation combination mode, wherein the affine transformation combination mode indicates that the same affine model is used to obtain respective prediction images of the image unit to be processed and the adjacent image unit thereof; parsing a code stream to obtain first indication information; determining, according to the first indication information, a prediction mode of the image unit to be processed from the set of candidate prediction modes; and determining, according to the prediction mode, a prediction image of the image unit to be processed. The method improves the code rate with the coding prediction mode, thus improving the coding efficiency.