Low complexity encoder optimization for HEVC

doi:10.1016/j.jvcir.2015.12.005

CORC > 北京大学 > 信息科学技术学院

	Low complexity encoder optimization for HEVC
	Wang, Shanshe ; Luo, Falei ; Ma, Siwei ; Zhang, Xiang ; Wang, Shiqi ; Zhao, Debin ; Gao, Wen
刊名	JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
	2016
关键词	HEVC Low complexity Intra mode decision CU splitting Reference frame selection Rate distortion optimization Video coding Encoder optimization VIDEO CODING HEVC RATE-DISTORTION OPTIMIZATION INTRA MODE DECISION EFFICIENCY STANDARD ALGORITHM
DOI	10.1016/j.jvcir.2015.12.005
英文摘要	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.; National High-tech R&D Program of China (863 Program) [2015AA015903]; National Natural Science Foundation of China [61322106, 61571017, 61421062]; Shenzhen Peacock Plan; SCI(E); EI; ARTICLE; 120-131; 35
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437736]
专题	信息科学技术学院
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.
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.
MLA	Wang, Shanshe,et al."Low complexity encoder optimization for HEVC".JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION (2016).