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1. (WO2015124058) CODING AND DECODING METHOD AND DEVICE

Pub. No.:    WO/2015/124058    International Application No.:    PCT/CN2015/072089
Publication Date: Fri Aug 28 01:59:59 CEST 2015 International Filing Date: Tue Feb 03 00:59:59 CET 2015
IPC: H04N 19/174
Applicants: HUAWEI TECHNOLOGIES CO.,LTD.
华为技术有限公司
Inventors: YANG, Haitao
杨海涛
ZHENG, Amin
郑阿敏
YUAN, Yuan
袁园
AU, Oscar
区子廉
Title: CODING AND DECODING METHOD AND DEVICE
Abstract:
A coding and decoding method and device, which can fully utilize spatial correlation in video information to improve compression efficiency in coding and decoding. The method comprises: determining, according to a total coding cost of a target image, a first processing sequence of multiple coding block groups comprised in the target image; coding coding block groups in the multiple coding block groups according to the first processing sequence to generate a code stream; and writing the first processing sequence into the code stream. By determining, according to a total coding cost of a target image, a first processing sequence of multiple coding block groups comprised in the target image and coding the multiple coding block groups according to the first processing sequence, spatial correlation in video information can be fully utilized so as to improve compression efficiency in coding and decoding.