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  • Wavelet-based multifractal formalism to assist in diagnosis in digitized mammograms
    Kestener, Pierre ...
    We apply the 2D wavelet transform (WTMM) method to perform a multifractal analysis of digitized mammograms. We show that normal regions display monofractal scaling properties as characterized by the ... socalled Hurst exponentH = 0.3 +- 0.1 in fatty areas which look like antipersistent self-similar random surfaces, while H = 0.65 +- 0.1 in dense areas which exibit long-range correlations and possibly multifractal scaling properties. We further demonstrate that the 2D WTMM method provides a very efficient way to detect tumors as well as microcalcifications (MC) which correspond to much stronger singularities than those involved in the background tissue roughness fluctuations. These preliminary results indicate that the texture discriminatory power of the 2D WTMM method may lead to significant improvementin computer-assisted diagnosis in digitized mammograms.
    Vir: Image analysis & stereology : official journal of the International Society for Stereology. - ISSN 1580-3139 (Vol. 20, no. 3, nov. 2001, str. 169-174)
    Vrsta gradiva - članek, sestavni del
    Leto - 2001
    Jezik - angleški
    COBISS.SI-ID - 16036569

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    Digitalna knjižnica Slovenije - dLib.si

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