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Proceedings Paper

Unsupervised classification of radar images based on hidden Markov models and generalized mixture estimation
Author(s): Roger Fjortoft; Jean-Marc Boucher; Yves Delignon; Rene Garello; Jean-Marc Le Caillec; Henri Maitre; Jean-Marie Nicolas; Wojciech Pieczynski; Marc Sigelle; Florence Tupin
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Paper Abstract

Due to the enormous quantity of radar images acquired by satellites and through shuttle missions, there is an evident need for efficient automatic analysis tools. This article describes unsupervised classification of radar images in the framework of hidden Markov models and generalised mixture estimation. In particular, we show that hidden Markov chains, based on a Hilbert-Peano scan of the radar image, are a fast and efficient alternative to hidden Markov random fields for parameter estimation and unsupervised classification. We also describe how the distribution families and parameters of classes with homogeneous or textured radar reflectivity can be determined through generalised mixture estimation. Sample results obtained on real and simulated radar images are presented.

Paper Details

Date Published: 21 December 2000
PDF: 12 pages
Proc. SPIE 4173, SAR Image Analysis, Modeling, and Techniques III, (21 December 2000); doi: 10.1117/12.410644
Show Author Affiliations
Roger Fjortoft, Norwegian Computing Ctr. (Norway)
Jean-Marc Boucher, Ecole Nationale Superieure des Telecommunications Bretagne (France)
Yves Delignon, Ecole Nouvelle d'Ingenieurs en Communication (France)
Rene Garello, Ecole Nationale Superieure des Telecommunications Bretagne (France)
Jean-Marc Le Caillec, Ecole Nationale Superieure des Telecommunications Bretagne (France)
Henri Maitre, Ecole Nationale Superieure des Telecommunications (France)
Jean-Marie Nicolas, Ecole Nationale Superieure des Telecommunications (France)
Wojciech Pieczynski, Institut National des Telecommunications (France)
Marc Sigelle, Ecole Nationale Superieure des Telecommunications (France)
Florence Tupin, Ecole Nationale Superieure des Telecommunications (France)


Published in SPIE Proceedings Vol. 4173:
SAR Image Analysis, Modeling, and Techniques III
Francesco Posa; Luciano Guerriero, Editor(s)

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