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The Scientific World Journal
Volume 2015 (2015), Article ID 834635, 8 pages
http://dx.doi.org/10.1155/2015/834635
Research Article

Unsupervised Spectral-Spatial Feature Selection-Based Camouflaged Object Detection Using VNIR Hyperspectral Camera

Yeungnam University, Gyeongsan, Gyeongbuk 712-749, Republic of Korea

Received 12 June 2014; Accepted 28 August 2014

Academic Editor: Shifei Ding

Copyright © 2015 Sungho Kim. 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

The detection of camouflaged objects is important for industrial inspection, medical diagnoses, and military applications. Conventional supervised learning methods for hyperspectral images can be a feasible solution. Such approaches, however, require a priori information of a camouflaged object and background. This letter proposes a fully autonomous feature selection and camouflaged object detection method based on the online analysis of spectral and spatial features. The statistical distance metric can generate candidate feature bands and further analysis of the entropy-based spatial grouping property can trim the useless feature bands. Camouflaged objects can be detected better with less computational complexity by optical spectral-spatial feature analysis.