Low complexity encoder optimization for HEVC

doi:10.1016/j.jvcir.2015.12.005

	Low complexity encoder optimization for HEVC
	Wang, Shanshe 1,2; Luo, Falei 4; Ma, Siwei 1,2; Zhang, Xiang 1,2; Wang, Shiqi 1,2; Zhao, Debin 3; Gao, Wen 1,2
	2016-02-01
发表期刊	JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
ISSN	1047-3203
卷号	35 页码:120-131
摘要	High Efficiency Video Coding (HEVC) improved the coding efficiency significantly. Compared to its predecessor H.264/AVC, it can provide equivalent subjective quality with more than 57% bit rate reduction. However, the improvement on coding efficiency is obtained at the expense of much more intensive computation complexity. In this paper, based on an overall analysis of computation complexity at the HEVC encoder, a low complexity encoder optimization scheme is proposed by reducing the number of available candidates for evaluation in terms of the intra prediction mode decision, early termination of coding unit (CU) splitting and adaptive reference frame selection. With the proposed scheme, the rate distortion optimization (RDO) technique of HEVC can be implemented in a low-complexity way for complexity constrained encoders. Experimental results demonstrate that, compared with the original HEVC reference encoder implementation, the proposed optimization scheme can achieve more than 40% complexity reduction on average with coding performance degradation as only 0.43% which can be ignorable. (C) 2015 Elsevier Inc. All rights reserved.
关键词	HEVC Low complexity Intra mode decision CU splitting Reference frame selection Rate distortion optimization Video coding Encoder optimization
DOI	10.1016/j.jvcir.2015.12.005
收录类别	SCI
语种	英语
资助项目	National High-tech R&D Program of China (863 Program)[2015AA015903] ; National Natural Science Foundation of China[61322106] ; National Natural Science Foundation of China[61571017] ; National Natural Science Foundation of China[61421062] ; Shenzhen Peacock Plan
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Software Engineering
WOS记录号	WOS:000369879600011
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/8740
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Wang, Shanshe
作者单位	1.Peking Univ, Inst Digital Media, Beijing 100871, Peoples R China 2.Peking Univ, Cooperat Medianet Innovat Ctr, Beijing 100871, Peoples R China 3.Harbin Inst Technol, Dept Comp Sci & Technol, Harbin 150006, Peoples R China 4.Chinese Acad Sci, Inst Comp Technol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shanshe,Luo, Falei,Ma, Siwei,et al. Low complexity encoder optimization for HEVC[J]. JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,2016,35:120-131.
APA	Wang, Shanshe.,Luo, Falei.,Ma, Siwei.,Zhang, Xiang.,Wang, Shiqi.,...&Gao, Wen.(2016).Low complexity encoder optimization for HEVC.JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,35,120-131.
MLA	Wang, Shanshe,et al."Low complexity encoder optimization for HEVC".JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION 35(2016):120-131.