Analytical comparison of subpixel target detectors in structured models for hyperspectral images

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dc.contributor.author Bajorski, Peter
dc.date.accessioned 2009-04-17T17:56:27Z
dc.date.available 2009-04-17T17:56:27Z
dc.date.issued 2005-03
dc.identifier.uri http://hdl.handle.net/1850/9099
dc.description RIT community members may access full-text via RIT Libraries licensed databases: http://library.rit.edu/databases/
dc.description.abstract In the current target detection literature, there are two major approaches to the evaluation of detectors’ performance. One is based on theoretical calculations assuming some simple statistical models, and the other approach uses real or simulated spectral images. The former approach is too simplistic, at this point, to address practical needs. On the other hand, the latter approach does not give us a good understanding of why certain detectors work better than others in the context of specific targets and spectral images. Our goal is to initiate research that will combine these two separate approaches. In this paper, we start with a comparison of two well-known detectors—the matched filter detector (MFD) and the orthogonal subspace projection (OSP) detector. We show a surprising result that MFD always outperforms OSP in a traditional theoretical formulation of the detection problem. We also show that this theoretical formulation is not realistic in practical target detection in real spectral images. However, the obtained results suggest more realistic approaches for providing theoretical background for practical target detection. In this paper, we also point out many detectors introduced in the literature that are equivalent to MFD or OSP detectors. en_US
dc.language.iso en_US en_US
dc.publisher Society of Photo-Optical Instrumentation Engineers en_US
dc.relation.ispartofseries DOI: 10.1117/12.603169 en_US
dc.subject Detection power en_US
dc.subject Hyperspectral image en_US
dc.subject Matched filter en_US
dc.subject OSP en_US
dc.subject Strcutured model en_US
dc.subject Target detection en_US
dc.title Analytical comparison of subpixel target detectors in structured models for hyperspectral images en_US
dc.type Article en_US
dc.identifier.url http://dx.doi.org/10.1117/12.603169

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