Dobigeon, Nicolas and Tits, Laurent and Somers, Ben and Altmann, Yoann and Coppin, Pol A Comparison of Nonlinear Mixing Models for Vegetated Areas Using Simulated and Real Hyperspectral Data. (2014) IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 7 (6). 1869-1878. ISSN 1939-1404
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 2MB |
Official URL: http://dx.doi.org/10.1109/JSTARS.2014.2328872
Abstract
Abstract—Spectral unmixing (SU) is a crucial processing step when analyzing hyperspectral data. In such analysis, most of the work in the literature relies on the widely acknowledged linear mixing model to describe the observed pixels. Unfortunately, this model has been shown to be of limited interest for specific scenes, in particular when acquired over vegetated areas. Consequently, in the past few years, several nonlinear mixing models have been introduced to take nonlinear effects into account while performing SU. These models have been proposed empirically, however, without any thorough validation. In this paper, the authors take advantage of two sets of real and physical-based simulated data to validate the accuracy of various nonlinear models in vegetated areas. These physics-based models, and their corresponding unmixing algorithms, are evaluated with respect to their ability of fitting the measured spectra and providing an accurate estimation of the abundance coefficients, considered as the spatial distribution of the materials in each pixel.
Item Type: | Article |
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Additional Information: | Thanks to IEEE editor. The original PDF of the article can be found at IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing website : http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?reload=true&punumber=4609443 |
HAL Id: | hal-01056556 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | 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 > 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) Other partners > Katholieke Universiteit Leuven - KU LEUVEN (BELGIUM) |
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Deposited On: | 20 Aug 2014 09:09 |
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