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作者:

Xiao, Chuang-Bai (Xiao, Chuang-Bai.) | Fu, Bo (Fu, Bo.) | Ouyang, Wan-Li (Ouyang, Wan-Li.) | Wu, Peng (Wu, Peng.)

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摘要:

Discrete cosine transforms (DCT's) are the mainstay of image signal processing. So far as is known, Feig's 2D DCT requires the least number of operations. In order to help understanding Feig's algorithm and further improve the algorithm, this paper first utilizes simple matrix decomposition theory to obtain Feig's algorithm. In addition, Feig's algorithm is extended to other three forms. Then, we further eliminates the inherent 49 negative operations of Feig's algorithm and regularizes its data flow diagram which is suitable for SIMD and VLIW.

关键词:

Algorithms Data flow analysis Discrete cosine transforms Image processing Matrix algebra Signal processing

作者机构:

  • [ 1 ] [Xiao, Chuang-Bai]College of Computer Science and Technology, Beijing University of Technology, Beijing 100022, China
  • [ 2 ] [Fu, Bo]College of Computer Science and Technology, Beijing University of Technology, Beijing 100022, China
  • [ 3 ] [Ouyang, Wan-Li]College of Computer Science and Technology, Beijing University of Technology, Beijing 100022, China
  • [ 4 ] [Wu, Peng]College of Computer Science and Technology, Beijing University of Technology, Beijing 100022, China

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来源 :

Journal of Beijing University of Technology

ISSN: 0254-0037

年份: 2007

期: 9

卷: 33

页码: 1002-1008

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