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Proceedings Paper

Impact of missing endmembers on the performance of the OSP detector for hyperspectral images
Author(s): Peter Bajorski
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Paper Abstract

In evaluating the performance of the detectors such as the orthogonal subspace projection (OSP) detector, it is often assumed that the model under which the detector is constructed is the correct model. However, in practice, the ability to identify all background endmembers might be limited. Consequently, the OSP detector would use only a subset of all background endmembers. This clearly creates sub-optimality of such a detector. In this paper, we perform analytical calculations that allow us to assess how much of the detection power is lost due to the unidentified background endmembers. An analytical comparison is made between two OSP detectors-one using only the identified endmembers and the other one using even a smaller set of endmembers (in order to simulate the situation when only the smaller set of endmembers is identified).

Paper Details

Date Published: 14 May 2007
PDF: 9 pages
Proc. SPIE 6565, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII, 656524 (14 May 2007); doi: 10.1117/12.720101
Show Author Affiliations
Peter Bajorski, Rochester Institute of Technology (United States)


Published in SPIE Proceedings Vol. 6565:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XIII
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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