Complexity controllable DCT for real-time H.264 encoder

doi:10.1016/j.jvcir.2006.10.005

	Complexity controllable DCT for real-time H.264 encoder
	Zhang, Dongming; Lin, Shouxun; Zhang, Yongdong; Yu, Lejun
	2007-02-01
发表期刊	JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
ISSN	1047-3203
卷号	18 期号:1 页码:59-67
摘要	A new integer 4 x 4 transform is adopted in the new video coding standard H.264/AVC. It consumes a big account of computation of a real-time encoder. To reduce the computation load of the new transform, pruned DCT algorithm is applied. To avoid serious encoding performance loss, a new condition is derived based on statistical sum of absolute value test(SSAVT) to identify pruned block adaptively. Considering the variance of DCT coefficients' contribution, a novel efficient model based on statistical analysis is proposed. To achieve further control on DCT complexity and a good tradeoff between performance and computation load, a scheme to control the complexity of DCT is presented. Simulation results show that the novel statistical model can save more computation, so it is chose to control DCT complexity. Simulation results show that the complexity controllable scheme can control the complexity of DCT within the specified target with negligible encoding performance loss. (c) 2006 Elsevier Inc. All rights reserved.
关键词	H.264 integer DCT pruned DCT SSAVT complexity controllable DCT
DOI	10.1016/j.jvcir.2006.10.005
收录类别	SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Information Systems ; Computer Science, Software Engineering
WOS记录号	WOS:000244027100005
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
引用统计	被引频次：6[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/2XEOYT63/10913
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, Dongming
作者单位	Chinese Acad Sci, Comp Technol Inst, Network & Pervas Comp Res Dept, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Dongming,Lin, Shouxun,Zhang, Yongdong,et al. Complexity controllable DCT for real-time H.264 encoder[J]. JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,2007,18(1):59-67.
APA	Zhang, Dongming,Lin, Shouxun,Zhang, Yongdong,&Yu, Lejun.(2007).Complexity controllable DCT for real-time H.264 encoder.JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION,18(1),59-67.
MLA	Zhang, Dongming,et al."Complexity controllable DCT for real-time H.264 encoder".JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION 18.1(2007):59-67.