Context-based entropy coding in AVS video coding standard

doi:10.1016/j.image.2008.12.001

CORC > 计算技术研究所 > 中国科学院计算技术研究所 > 中国科学院计算技术研究所期刊论文 > 英文

	Context-based entropy coding in AVS video coding standard
	Zhang, Li 1; Wang, Qiang 2; Zhang, Ning 3; Zhao, Debin 2; Wu, Xiaolin 3; Gao, Wen 4
刊名	SIGNAL PROCESSING-IMAGE COMMUNICATION
	2009-04-01
卷号	24 期号:4 页码:263-276
关键词	AVS DCT video coding Entropy coding Context modeling Variable length coding Arithmetic coding
ISSN号	0923-5965
DOI	10.1016/j.image.2008.12.001
英文摘要	In this paper, two context-based entropy coding schemes for AVS Part-2 video coding standard are presented. One is Context-based 2D Variable Length Coding (C2DVLC) as a low complexity entropy coding scheme for AVS Part-2 Jizhun profile. C2DVLC uses Multiple 2D-VLC tables to exploit the statistical features of DCT coefficients for higher coding efficiency. Exponential-Golomb codes are applied in C2DVLC to code the pairs of the run-length of zero coefficients and the non-zero coefficients for lower storage requirement. The other is Context-based Binary Arithmetic Coding (CBAC) as an enhanced entropy coding scheme for AVS Part-2 Jiaqiang profile. CBAC utilizes all previously coded coefficient magnitudes in a DCT block for context modeling. This enables adaptive arithmetic coding to exploit the redundancy of the high-order Markov process in DCT domain with a few contexts. In addition, a context weighting technique is used to further improve CBAC's coding efficiency. Moreover, CBAC is designed to be compatible to C2DVLC in coding elements which simplifies the implementations. The experimental results demonstrate that both C2DVLC and CBAC can achieve comparable or even slightly higher coding performance when compared to Context-Adaptive Variable Length Coding (CAVLC) in H.264/AVC baseline profile and Context-Based Adaptive Binary Arithmetic Coding (CABAC) in H.264/AVC main profile respectively. (C) 2009 Elsevier B.V. All rights reserved.
资助项目	National Science Foundation[60833013] ; National Science Foundation[60803068] ; Major State Basic Research Development Program of China (973 Program)[2009CB320903]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000267039600003
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/11771]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Zhang, Li
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Key Lab Intelligent Informat Proc, Beijing, Peoples R China 2.Harbin Inst Technol, Dept Comp Sci & Engn, Harbin 150006, Peoples R China 3.McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4L8, Canada 4.Peking Univ, Sch Elect Engn & Comp Sci, Inst Digital Media, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Li,Wang, Qiang,Zhang, Ning,et al. Context-based entropy coding in AVS video coding standard[J]. SIGNAL PROCESSING-IMAGE COMMUNICATION,2009,24(4):263-276.
APA	Zhang, Li,Wang, Qiang,Zhang, Ning,Zhao, Debin,Wu, Xiaolin,&Gao, Wen.(2009).Context-based entropy coding in AVS video coding standard.SIGNAL PROCESSING-IMAGE COMMUNICATION,24(4),263-276.
MLA	Zhang, Li,et al."Context-based entropy coding in AVS video coding standard".SIGNAL PROCESSING-IMAGE COMMUNICATION 24.4(2009):263-276.