• DocumentCode
    839414
  • Title

    Pre-post quantisation and integer wavelet for image compression

  • Author

    Iwahashi, M. ; Tonomura, Y. ; Chokchaitam, S. ; Kambayashi, N.

  • Author_Institution
    Dept. of Electr. Eng., Nagaoka Univ. of Technol., Nagaoka Niigata, Japan
  • Volume
    39
  • Issue
    24
  • fYear
    2003
  • Firstpage
    1725
  • Lastpage
    1726
  • Abstract
    Quantisation prior to the integer wavelet transform (Pre-Qnt) is introduced. The best combination of the Pre-Qnt and the conventional post-quantisation (Post-Qnt) in multi-stage band splitting based on the integer wavelet transform is presented.
  • Keywords
    data compression; entropy; image coding; quantisation (signal); rate distortion theory; roundoff errors; transform coding; wavelet transforms; entropy rate; hybrid method; image compression; integer wavelet transform; lossy coding mode; multistage band splitting; pre-post quantisation; probability density function; rate distortion curves; rounding errors; three-stage decomposition;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20031121
  • Filename
    1251541
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=839414