• DocumentCode
    2759956
  • Title

    Wavelet and entropy analysis combination to evaluate diffusion and correlation behaviours

  • Author

    Chiou, Rui C H ; Ferreira, Mariaa Liceg V ; Silva, Claudiot ; Kaufman, Ariee

  • Author_Institution
    Dept. of Comput. & Digital Syst. Eng., Sao Paulo Univ., Brazil
  • fYear
    1997
  • fDate
    14-17 Oct 1997
  • Firstpage
    119
  • Lastpage
    125
  • Abstract
    Diffusion and correlation effects are two principal phenomena which have been studied for years and several visualization techniques have been proposed to help scientists to understand them. The analysis of these phenomena will help to extract important information from data sets. To understand these problems we combine wavelet and entropy analysis to evaluate the evolution of these behaviours through scale and time. We present image case studies to show several different kinds of behaviours of these effects. Some of them are fallible cases and not reliable, as the images do not show the desired information. We calculate entropy of smooth and detail coefficient sets, generated by wavelet transform of these sample images in each scale, to obtain measures that allow us to evaluate these behaviours according to the organization complexity. These measures can provide an indication about the quality of the rendered images
  • Keywords
    computational complexity; data visualisation; image processing; rendering (computer graphics); wavelet transforms; correlation behaviours; data sets; diffusion behaviours; entropy analysis; image case studies; rendered images; visualization techniques; wavelet analysis; Data mining; Data visualization; Digital systems; Entropy; Information analysis; Multiresolution analysis; Rendering (computer graphics); Systems engineering and theory; Wavelet analysis; Wavelet transforms;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Computer Graphics and Image Processing, 1997. Proceedings., X Brazilian Symposium on
  • Conference_Location
    Campos do Jordao
  • Print_ISBN
    0-8186-8102-0
  • Type

    conf

  • DOI
    10.1109/SIGRA.1997.625157
  • Filename
    625157