
Proceedings Paper
Multichannel hierarchical image classification using multivariate copulasFormat | Member Price | Non-Member Price |
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Paper Abstract
This paper focuses on the classification of multichannel images. The proposed supervised Bayesian classification
method applied to histological (medical) optical images and to remote sensing (optical and synthetic aperture
radar) imagery consists of two steps. The first step introduces the joint statistical modeling of the coregistered
input images. For each class and each input channel, the class-conditional marginal probability density functions
are estimated by finite mixtures of well-chosen parametric families. For optical imagery, the normal distribution
is a well-known model. For radar imagery, we have selected generalized gamma, log-normal, Nakagami and
Weibull distributions. Next, the multivariate d-dimensional Clayton copula, where d can be interpreted as the
number of input channels, is applied to estimate multivariate joint class-conditional statistics. As a second step,
we plug the estimated joint probability density functions into a hierarchical Markovian model based on a quadtree
structure. Multiscale features are extracted by discrete wavelet transforms, or by using input multiresolution
data. To obtain the classification map, we integrate an exact estimator of the marginal posterior mode.
Paper Details
Date Published: 10 February 2012
PDF: 14 pages
Proc. SPIE 8296, Computational Imaging X, 82960K (10 February 2012); doi: 10.1117/12.917298
Published in SPIE Proceedings Vol. 8296:
Computational Imaging X
Charles A. Bouman; Ilya Pollak; Patrick J. Wolfe, Editor(s)
PDF: 14 pages
Proc. SPIE 8296, Computational Imaging X, 82960K (10 February 2012); doi: 10.1117/12.917298
Show Author Affiliations
Aurélie Voisin, INRIA Sophia Antipolis Méditerranée (France)
Vladimir A. Krylov, INRIA Sophia Antipolis Méditerranée (France)
Gabriele Moser, Univ. of Genoa (Italy)
Vladimir A. Krylov, INRIA Sophia Antipolis Méditerranée (France)
Gabriele Moser, Univ. of Genoa (Italy)
Sebastiano B. Serpico, Univ. of Genoa (Italy)
Josiane Zerubia, INRIA Sophia Antipolis Méditerranée (France)
Josiane Zerubia, INRIA Sophia Antipolis Méditerranée (France)
Published in SPIE Proceedings Vol. 8296:
Computational Imaging X
Charles A. Bouman; Ilya Pollak; Patrick J. Wolfe, Editor(s)
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