• DocumentCode
    2577876
  • Title

    Highpass-filtering based adaptive directional wavelet transform

  • Author

    Tanaka, Yuichi ; Hasegawa, Madoka ; Kato, Shigeo

  • Author_Institution
    Dept. of Inf. Sci., Utsunomiya Univ., Utsunomiya, Japan
  • fYear
    2009
  • fDate
    6-8 May 2009
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    In this paper, a calculation method of transform directions for adaptive directional wavelet transform (AD WT) is proposed. It uses 2-D highpass filters as a preprocessing of the conventional calculation stage. The filters can reduce the number of direction candidates effectively. In image coding, our proposed framework shows very comparable results to the conventional AD WT and outperforms the traditional separable WT.
  • Keywords
    discrete wavelet transforms; filtering theory; image coding; adaptive directional wavelet transform; highpass-filtering theory; image coding; Computational efficiency; Energy resolution; Filter bank; Image coding; Image reconstruction; Image resolution; Information science; Noise reduction; Video compression; Wavelet transforms; Adaptive directional wavelet transform; directional filter bank; image coding; wavelet transform;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Picture Coding Symposium, 2009. PCS 2009
  • Conference_Location
    Chicago, IL
  • Print_ISBN
    978-1-4244-4593-6
  • Electronic_ISBN
    978-1-4244-4594-3
  • Type

    conf

  • DOI
    10.1109/PCS.2009.5167468
  • Filename
    5167468
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2577876