NDLI: Material identification on martian hyperspectral images using bayesian source separation

Content Provider	IEEE Xplore Digital Library
Author	Schmidt, F. Moussaoui, S. Dobigeon, N.
Copyright Year	2009
Description	Author affiliation: ESA, ESAC, Villafranca del Castillo, Spain (Schmidt, F.) \|\| University of Toulouse, IRIT/INP-ENSEEIHT, France (Dobigeon, N.) \|\| IRCCyN, UMR CNRS 6597, Nantes, France (Moussaoui, S.)
Abstract	Identification of materials in a planetological scene observed by an imaging spectrometer is a common problem in remote sensing. Usually the pixel size is larger than the typical size of material change over planets, leading to a linear spatial mixing. We propose here an unsupervised approach based on source separation methods to estimate the pure spectra of the components present in the observed scene and their abundances in each pixel. Previous studies have shown that this approach is interesting for Martian ices [1]. This method assumes the positivity of both the pure spectra and the mixing coefficients. We propose here to apply this technique to detect Martian minerals and we show that adding the sum-to-one constraint (or additivity constraint) on the abundance vectors allows one to improve the estimation performance.
Starting Page	1
Ending Page	4
File Size	628048
Page Count	4
File Format	PDF
ISBN	9781424446865
DOI	10.1109/WHISPERS.2009.5289091
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-26
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spectroscopy Source separation Hyperspectral sensors Hyperspectral Independent component analysis Ice Minerals Unsupervised classification Remote sensing Mars Planets Bayesian methods Layout Bayesian blind source separation Hyperspectral imaging
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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