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la Méthode Markovienne et l'analyse d'ondelettes pour le traitement des images satelittaires

Auteur : Djalel DRICI
Année : 2008
Domaine : Electronique
Type : Mémoire de magister
Etablissement : Université 8 mai 1945 de Guelma
Résumé en PDF : (résumé en pdf)
Fulltext en PDF : (.pdf)
Mots clés : Markov random field, line processus, image restoration, multiresolution analysis, deterministic relaxation.

Résumé :

The restoration methods involving Markov random fields with line process forthe discontinuities are known to give good results in edge preserving imagerestoration . The Markov model is developped on the image decomposed at severalresolutions using a wavelet transform.Simulated Annealing algorithm or ICM (Iterated Conditional Modes) performs theminimization of the non convex criterion . Several multiresolution algorithms aredeveloped and results are compared with those in monoresolution . Thesemultiresolution algorithms provide better results with less computation time .