Computer Science
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.6960e..19p&link_type=abstract
Space Exploration Technologies. Edited by Fink, Wolfgang. Proceedings of the SPIE, Volume 6960, pp. 69600P-69600P-13 (2008).
Computer Science
Scientific paper
Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) data can be used to identify the presence of minerals on the surface or Mars. The data are a peculiar set from which to extract endmembers. Using an image from a previously investigate area of the surface, we compare a geometrical and a statistical algorithm for extracting endmembers for mineral identification. Both algorithms correctly identified the spectra of the two minerals known to be present in the Nili Fossae region of Mars. Both algorithms suffer from linearity assumption. Even though the statistical algorithm is less robust with respect to outliers, it has potential to extract endmembers in complex data clouds because of its local nature.
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