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Super resolution of multispectral images using ℓ1 image models and interband correlations

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4 Author(s)
Vega, M. ; Dept. de Lenguajes y Sist. Informaticos, Univ. de Granada, Granada, Spain ; Mateos, J. ; Molina, R. ; Katsaggelos, A.K.

In this paper we propose a novel super-resolution based algorithm for the pansharpening of multispectral images. Within the Bayesian formulation, the proposed methodology incorporates prior knowledge on the expected characteristics of multispectral images; that is, imposes smoothness within each band by means of the energy associated to the lscr1 norm of vertical and horizontal first order differences of image pixel values and also takes into account the correlation between the bands of the multispectral image. The observation process is modeled using the sensor characteristics of both panchromatic and multispectral images. The method is tested on real and synthetic images, compared with other pan-sharpening methods, and its quality is assessed both qualitatively and quantitatively.

Published in:

Machine Learning for Signal Processing, 2009. MLSP 2009. IEEE International Workshop on

Date of Conference:

1-4 Sept. 2009