Evaluating Subpixel Target Detection Algorithms in Hyperspectral ImageryReport as inadecuate




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Journal of Electrical and Computer Engineering - Volume 2012 2012, Article ID 103286, 15 pages -

Research Article

The Unit of Electro-Optics Engineering and the Earth and Planetary Image Facility, Ben-Gurion University of the Negev, P.O. Box 653, 84105 Beer-Sheva, Israel

The Department of Geography and Environmental Development and the Earth and Planetary Image Facility, Ben-Gurion University of the Negev, P.O. Box 653, 84105 Beer-Sheva, Israel

Department of Electrical and Computer Engineering and the Earth and Planetary Image Facility, Ben-Gurion University of the Negev, P.O. Box 653, 84105 Beer-Sheva, Israel

Received 28 February 2012; Accepted 5 June 2012

Academic Editor: James Theiler

Copyright © 2012 Yuval Cohen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Our goal in this work is to demonstrate that detectors behave differently for different images and targets and to propose a novel approach to proper detector selection. To choose the algorithm, we analyze image statistics, the target signature, and the target’s physical size, but we do not need any type of ground truth. We demonstrate our ability to evaluate detectors and find the best settings for their free parameters by comparing our results using the following stochastic algorithms for target detection: the constrained energy minimization CEM, generalized likelihood ratio test GLRT, and adaptive coherence estimator ACE algorithms. We test our concepts by using the dataset and scoring methodology of the Rochester Institute of Technology RIT Target Detection Blind Test project. The results show that our concept correctly ranks algorithms for the particular images and targets including in the RIT dataset.





Author: Yuval Cohen, Yitzhak August, Dan G. Blumberg, and Stanley R. Rotman

Source: https://www.hindawi.com/



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