Very low bit rate DCT coding by spectral similarity analysis

Yung Gi Wu, Shen-Chuan Tai

研究成果: Conference article同行評審


Conventional transform coding schemes such as JPEG process the spectrum signal in a block by block manner due to its simple manipulation; nevertheless it does not consider the similarity of different spectrums. The proposed method devises a translation function, which reorganizes the individual spectrum data to generate the global spectrums according to their frequency band. Among those different bands, high similarity characteristic is existing. Our algorithm analyzes the similarity of those different spectrum bands to reduce the bit rate of transmission or storage. Simulations are carried to many different nature images to demonstrate that the proposed method can improves the performances when compared with other existing transform coding schemes especially at very low bit rate (below 0.25 bpp) requirement.

頁(從 - 到)309-319
期刊Proceedings of SPIE - The International Society for Optical Engineering
出版狀態Published - 1998 十二月 1
事件Applications of Digital Image Processing XXI - San Diego, CA, United States
持續時間: 1998 七月 211998 七月 24

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程


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