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作者机构:Institute of Image Communication and Information ProcessingShanghai Jiao Tong UniversityShanghai 200030China
出 版 物:《Frontiers of Electrical and Electronic Engineering in China》 (中国电气与电子工程前沿(英文版))
年 卷 期:2006年第1卷第4期
页 面:431-436页
学科分类:08[工学] 0812[工学-计算机科学与技术(可授工学、理学学位)]
主 题:video coding H.264 inter mode optimization algorithm
摘 要:In this paper,a new fast mode-selection ap-proach is *** algorithm combines the proposed approaches of mode pre-decision and precise large-small mode decision,by selecting the best mode ***-perimental results show that the proposed approach can re-duce the computational cost of full search and fast multi-block motion estimation by 80%and 45%,respec-tively,with similar visual quality and bit *** proposed algorithm also reduces by 75%the computational cost of the large-small mode isolation algorithm for low-motion sequence coding,and with 0.06 PSNR gain and 3.7%re-duction in bit rate.