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Fusion of hyperspectral and multispectral infrared astronomical images

Guilloteau, Claire and Oberlin, Thomas and Berné, Olivier and Dobigeon, Nicolas Fusion of hyperspectral and multispectral infrared astronomical images. (2020) In: 11th IEEE Workshop on Sensor Array and Multichannel Signal Processing (SAM 2020), 8 June 2020 - 11 June 2020 (Hangzhou, China).

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Official URL: https://doi.org/10.1109/SAM48682.2020.9104393


This paper presents a data fusion method dedicated to high dimensional astronomical imaging. The fusion process reconstructs a high spatio-spectral resolution datacube, taking advantage of a multispectral observation image with high spatial resolution and a hyperspectral image with high spectral resolution. We define a regularized inverse problem accounting for the specificities of the astronomical observation instruments, in particular spectrally variant blurs. To handle convolution operators as well as the high dimensionality of the data, the problem is solved in the frequency domain and in a low-dimensional subspace. The fusion model is evaluated on simulated observations of the Orion Bar and shows excellent spatial and spectral reconstructions of the observed scene.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to IEEE editor. The definitive version is available at http://ieeexplore.ieee.org This papers appears in Proceedings of SAM 2020. Electronic ISBN: 978-1-7281-1946-5 Electronic ISSN: 2151-870X The original PDF of the article can be found at: https://ieeexplore.ieee.org/abstract/document/9104393 Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. https://ieeexplore.ieee.org/abstract/document/9104393
HAL Id:hal-02879718
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
ANR : Agence nationale de la recherche (France) - CNRS : Centre national de la recherche scientifique (France) - CNES : Centre national d'études spatiales (France)
Deposited On:18 Jun 2020 14:37

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