Titre : An improved scheme dedicated to multispectral images telebrowsing

Auteur(s) : A. Benazza-Benyahia (1), J-. C. Pesquet (2), M. Hamdi (1)

Laboratoire(s) :

  • (1) Département de Mathématiques appliquées, Signal et Communications Ecole Supérieure des Communications de Tunis,
  • (2) Laboratoire Systèmes de Communication, Université de Marne-la-Vallée, ben.yahia@planet.tn, pesquet@univ-mlv.tn, mmh@certification.tn

Résumé :

The topic of this paper deals with coding methods dedicated to progressive telebrowsing of multispectral images. In previous works, we have proposed a general subband decomposition scheme with perfect reconstruction which has the merit of exploiting simultaneously the spatial and the spectral redundancies of multispectral images. In this paper, we provide a specific decomposition able to code four-component images. Furthermore, we discuss the opportunity of a preprocessing stage. Finally, we evaluate the performances of the proposed coders on SPOT images.

Liste de mots-clefs :

Lossless coding, spectral and spatial decorrelation, progressive reconstruction.