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Detection of nonlinear mixtures using Gaussian processes: Application to hyperspectral imaging

Imbiriba, Tales and Bermudez, José Carlos Moreira and Tourneret, Jean-Yves and Richard, Cédric Detection of nonlinear mixtures using Gaussian processes: Application to hyperspectral imaging. (2014) In: IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), 4 May 2014 - 9 May 2014 (Florence, Italy).

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Official URL: http://dx.doi.org/10.1109/ICASSP.2014.6855148

Abstract

This paper investigates the use of Gaussian processes to detect non-linearly mixed pixels in hyperspectral images. The proposed technique is independent of nonlinear mixing mechanism, and therefore is not restricted to any prescribed nonlinear mixing model. The observed reflectances are estimated using both the least squares method and a Gaussian process. The fitting errors of the two approaches are combined in a test statistics for which it is possible to estimate a detection threshold given a required probability of false alarm. The proposed detector is compared to a robust nonlinearity detector recently proposed using synthetic data and is shown to provide a better detection performance. The new detector is also tested on a real hyperspectral image.

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 ICASSP 2014. Electronic ISBN: 978-1-4799-2893-4 The original PDF of the article can be found at: http://ieeexplore.ieee.org/document/6855148/ 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. http://ieeexplore.ieee.org/document/6855148/
HAL Id:hal-01484999
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Université Nice Sophia Antipolis (FRANCE)
Other partners > Universidade Federal de Santa Catarina - UFSC (BRAZIL)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
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Deposited By: IRIT IRIT
Deposited On:21 Feb 2017 13:31

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