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Complexity controllable DCT for real-time H.264 encoder

文献类型：期刊论文

作者Zhang, Dongming; Lin, Shouxun; Zhang, Yongdong; Yu, Lejun
刊名JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
出版日期2007-02-01
卷号18期号:1页码:59-67
关键词H.264 integer DCT pruned DCT SSAVT complexity controllable DCT
ISSN号1047-3203
DOI10.1016/j.jvcir.2006.10.005
英文摘要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.
WOS研究方向Computer Science
语种英语
WOS记录号WOS:000244027100005
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
源URL[http://119.78.100.204/handle/2XEOYT63/10912]  
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.

入库方式： OAI收割

来源：计算技术研究所

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