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Fast 2-D 8×8 discrete cosine transform algorithm for image coding

Fast 2-D 8×8 discrete cosine transform algorithm for image coding
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摘要 A new fast two-dimension 8×8 discrete cosine transform （2D 8×8 DCT） algorithm based on the characteristics of the basic images of 2D DCT is presented. The new algorithm computes each DCT coefficient in turn more independently. Hence, the new algorithm is suitable for 2D DCT pruning algorithm of pruning away any number of high-frequency components of 2D DCT. The proposed pruning algorithm is more efficient than the existing pruning 2D DCT algorithms in terms of the number of arithmetic operations, especially the number of multiplications required in the computation. A new fast two-dimension 8×8 discrete cosine transform （2D 8×8 DCT） algorithm based on the characteristics of the basic images of 2D DCT is presented. The new algorithm computes each DCT coefficient in turn more independently. Hence, the new algorithm is suitable for 2D DCT pruning algorithm of pruning away any number of high-frequency components of 2D DCT. The proposed pruning algorithm is more efficient than the existing pruning 2D DCT algorithms in terms of the number of arithmetic operations, especially the number of multiplications required in the computation.
作者 JI XiuHua ZHANG CaiMing WANG JiaYe BOEY S. H.
机构地区 Fast School of Computer Science and Technology
出处 《Science in China(Series F)》 2009年第2期215-225,共11页 中国科学（F辑英文版）
基金 Supported by the National Basic Research Program of China (Grant No.2006CB303102) the National Natural Science Foundation of China(Grant Nos.60573114,60533030 and 60573181)
关键词 discrete cosine transform basic image QUANTIZATION image coding discrete cosine transform basic image quantization image coding
分类号 TP391.41 [自动化与计算机技术—计算机应用技术]
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  • 1刘艳,李宏东.DCT域图象处理和特征提取技术[J].中国图象图形学报（A辑）,2003,8(2):121-128. 被引量：21
  • 2Feig E.,Winograd S.Fast algorithms for the discrete cosine transform.IEEE Transactions on Signal Processing,1992,40(9):2174～2193
  • 3Huang Yuh Ming,Wu Ja-Ling.A refined fast 2-D discrete cosine transform algorithm.IEEE Transactions on Signal Processing,1999,47(3):904～907
  • 4Leoffler C.,Ligtenberg A.,Moschytz G.S.Practical fast 1D DCT algorithms with 11 multiplications.In:Proceedings of the IEEE International Conference Acoustics,Speech and Signal Processing(ICASSP),Glasgow,1989,2:988～991
  • 5Lee B.G.A new algorithm to compute the discrete cosine transform.IEEE Transactions on Acoustics,Speech,and Signal Processing,1984,32(6):1243～1245
  • 6Chen W H et al.A fast computational algorithm for the discrete cosine transform.IEEE Transactions on Communica tions,1977,25(9):1004～1009
  • 7Skodras A.N.Direct transform to computation.IEEE Signal Processing Letters,1999,6(8):202～204
  • 8Liang Jie.Fast multiplierless approximations of the DCT with the lifting scheme.IEEE Transactions on Signal Processing,2001,49(12):3032～3044
  • 9Cui Xiang Biao,Martin J.Evolution of the discrete cosine transform using genetic programming.Research Letters in the Information and Mathematical Sciences,2002,3(1):117～ 125
  • 10Henning R.,Chakrabarti C.A quality/energy tradeoff approach for IDCT computation in MPEG-2 video decoding.In:Proceedings of IEEE Signal Processing Systems(SiPS),Lafayette,2000.90～99

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Science in China(Series F)
2009年 第2期

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