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Hyperspectral BSS Using GMCA With Spatio-Spectral Sparsity Constraints

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2 Author(s)
Moudden, Y. ; DSM/IRFU/SEDI, CEA/Saclay, Gif-sur-Yvette, France ; Bobin, J.

Generalized morphological component analysis (GMCA) is a recent algorithm for multichannel data analysis which was used successfully in a variety of applications including multichannel sparse decomposition, blind source separation (BSS), color image restoration and inpainting. Building on GMCA, the purpose of this contribution is to describe a new algorithm for BSS applications in hyperspectral data processing. It assumes the collected data is a mixture of components exhibiting sparse spectral signatures as well as sparse spatial morphologies, each in specified dictionaries of spectral and spatial waveforms. We report on numerical experiments with synthetic data and application to real observations which demonstrate the validity of the proposed method.

Published in:

Image Processing, IEEE Transactions on  (Volume:20 ,  Issue: 3 )