e-Article
RESTORATION OF HYPERSPECTRAL ASTRONOMICAL DATA WITH SPECTRALLY VARYING BLUR.
Document Type
Article
Author
Source
Subject
*HYPERSPECTRAL imaging systems
*INTEGRAL field spectroscopy
*SPECTROMETRY
*SPECTRUM analysis
*ASTRONOMY
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Language
ISSN
1633-4760
Abstract
In this paper we present a method for hyper-spectral image restoration for integral field spectrographs (IFS) data. We specifically address two topics: (i) the design of a fast approximation of spectrally varying operators and (ii) the comparison between two kind of regularization functions: quadratic and spatial sparsity functions. We illustrate this method with simulations coming from the Multi Unit Spectroscopic Explorer (MUSE) instrument. It shows the clear increase of the spatial resolution provided by our method as well as its denoising capability. [ABSTRACT FROM AUTHOR]