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Early Determination of Zero-Quantized 8 x 8 DCT Coefficients
Ji, Xiangyang2,3; Kwong, Sam4; Zhao, Debin5; Wang, Hanli6; Kuo, C. -C. Jay7,8; Dai, Qionghai1
2009-12-01
发表期刊IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN1051-8215
卷号19期号:12页码:1755-1765
摘要This paper proposes a novel approach to early determination of zero-quantized 8x8 discrete cosine transform (DCT) coefficients for fast video encoding. First, with the dynamic range analysis of DCT coefficients at different frequency positions, several sufficient conditions are derived to early determine whether a prediction error block (8x8) is an all-zero or a partial-zero block, i.e., the DCT coefficients within the block are all or partially zero-quantized. Being different from traditional methods that utilize the sum of absolute difference (SAD) of the entire prediction error block, the sufficient conditions are derived based on the SAD of each row of the prediction error block. For partial-zero blocks, fast DCT/IDCT algorithms are further developed by pruning conventional 8-point butterfly-based DCT/IDCT algorithms. Experimental results exhibit that the proposed early determination algorithm greatly reduces computational complexity in terms of DCT/IDCT, quantization, and inverse quantization, as compared with existing algorithms.
关键词Butterfly-based DCT computational complexity discrete cosine transform sum of absolute difference zero-quantized coefficients
DOI10.1109/TCSVT.2009.2026839
收录类别SCI
语种英语
资助项目Hong Kong RGB Competitive Earmarked Research Grant[9041236 (CityU 114707)] ; Hong Kong RGB Competitive Earmarked Research Grant[9041353 (CityU 115408)] ; Major State Basic Research Development Program 973 of China[2009CB320905]
WOS研究方向Engineering
WOS类目Engineering, Electrical & Electronic
WOS记录号WOS:000272483100004
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计
被引频次:13[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/2XEOYT63/11709
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Ji, Xiangyang
作者单位1.Tsinghua Univ, Automat Dept, Broadband Networks & Digital Media Lab, Beijing 100084, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
3.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China
4.City Univ Hong Kong, Dept Comp Sci, Kowloon, Hong Kong, Peoples R China
5.Harbin Inst Technol, Dept Comp Sci, Harbin 150001, Peoples R China
6.Fernuniv, D-58084 Hagen, Germany
7.Univ So Calif, Dept Elect Engn, Los Angeles, CA 90089 USA
8.Univ So Calif, Integrated Media Syst Ctr, Los Angeles, CA 90089 USA
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GB/T 7714
Ji, Xiangyang,Kwong, Sam,Zhao, Debin,et al. Early Determination of Zero-Quantized 8 x 8 DCT Coefficients[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2009,19(12):1755-1765.
APA Ji, Xiangyang,Kwong, Sam,Zhao, Debin,Wang, Hanli,Kuo, C. -C. Jay,&Dai, Qionghai.(2009).Early Determination of Zero-Quantized 8 x 8 DCT Coefficients.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,19(12),1755-1765.
MLA Ji, Xiangyang,et al."Early Determination of Zero-Quantized 8 x 8 DCT Coefficients".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 19.12(2009):1755-1765.
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