一种多视点视频编码的宏块模式快速选择新算法  

A novel macroblock mode selection algorithm in multiview video coding

作　　者：彭宗举[1,2] 郁梅[2,3] 蒋刚毅[1,2] 杨铀[1,4] 

机构地区：[1]国科学院计算技术研究所,北京100080 [2]宁波大学信息科学与工程学院,宁波315211 [3]北京大学视听信息处理国家重点实验室,北京100871 [4]中国科学院研究生院,北京100080

出　　处：《高技术通讯》2008年第3期253-258,共6页Chinese High Technology Letters

基　　金：国家自然科学基金(60672073);教育部新世纪人才支持计划(CET-06-0537);教育部科学技术研究重点项目(2060059);浙江省自然科学基金(Y105577);宁波市自然科学基金(2007A610037)资助项目

摘　　要：分析了多视点视频编码中宏块模式的选择情况,提出了顺序可选宏块模式集的概念。比较分析了率失真代价最优宏块模式和最省时间可选宏块模式的搜索过程,讨论了编码宏块模式为最省时间可选宏块模式对率失真性能的影响,并在此基础上提出了基于顺序可选宏块模式集的快速宏块模式选择算法。实验结果表明,所提出算法在基本保持率失真性能的情况下,能明显降低宏块模式选择的复杂度,编码速度比多视点视频编码校验模型提高3.2倍到5.8倍。A conception of sequential optional macroblock mode set was proposed by the analysis on the macroblock mode selection in multiview video coding. A fast macrolbock mode selection algorithm based on the sequential optional macroblock mode set was put forward on the basis of comparing the searching process of＇ the rate distortion cost optimal macroblock mode with that of the minimal time optimal macroblock mode, and the discussion of the influence of minimal time optional macroblock mode being the encoding macroblock mode on rate distortion performance. The experimental results showed that the proposed algorithm reduced the complexity of the macroblock mode selection process obviously and promoted the encoding speed by 3.2-5.8 times, while the rate distortion performance nearly remained unchanged.

关 键 词：多视点视频编码 帧间预测 宏块模式选择 快速算法 

分 类 号：TN919.81[电子电信—通信与信息系统] TP301.6[电子电信—信息与通信工程]