重庆邮电大学学报（自然科学版）Issue(1)：9-16,8.DOI:10.3979/j.issn.1673-825X.2016.01.002
一种基于空时域相关性的 HEVC 帧间预测模式快速决策算法
A fast inter prediction mode decision algorithm for HEVC based on spatio-temporal correlations
摘要
Abstract
In order to reduce the complexity of high efficiency video coding (HEVC),a fast inter prediction improved algo-rithm based on quad-tree analysis is proposed.On the one hand,we can reduce the complexity of the depth-splitting by uti-lizing the relationship between spatial-temporal information of CU and the depth of it.And we also can make some redun-dant CU skipped by ensuring the depth interval.On the other hand,it can make sure the different motion characteristics of the PU mode by analyzing the motion features of CU which is in depth interval and the property of PU mode.So it can re-duce the number of ergodic candidates of PU mode and greatly reduce the number of the needed rate distortion cost calcula-tions.Compared to HM1 4.0,the experiments show that the proposed algorithm of HEVC encoder is able to cut the average complexity of HM1 4.0 encoder by 46.9% at a small bit rate increase.Besides,the quality of encoded video almost re-mains unchanged.关键词
高效率视频编码/深度划分/模式决策/率失真代价Key words
high efficiency video coding/depth splitting/mode decision/rate distortion cost分类
信息技术与安全科学引用本文复制引用
李强,覃杨微..一种基于空时域相关性的 HEVC 帧间预测模式快速决策算法[J].重庆邮电大学学报（自然科学版）,2016,(1):9-16,8.基金项目
国家自然科学基金（61102131）；重庆市教委科技项目（KJ1400425）Foundation ItemsThe National Natural Science Foundation of China（61102131）；The Science and Technology Research Project of Chongqing Municipal Education Commission of China （）
