Spectral Discrimination of a Tank Target and Clutter Using IBAS Filters and Principal Component Analysis

Report No. ARL-TR-5599
Authors: Karl K. Klett, Jr.
Date/Pages: July 2011; 18 pages
Abstract: Infrared images of a tank and background clutter are analyzed to investigate if the chromaticity plane can be used as a cueing aid for automatic target detection. Three images were acquired using the clear aperture and two classified filters that comprise the B-kit installed FLIR that is part of the Improved Bradley Acquisition System (IBAS). 5 by 5 pixel samples of the image are plotted on the chromaticity plane from various locations on the target and background clutter. The multi-spectral imagery is transformed into a 3D color space which increases the dynamic range of the image information. Such a transformation of target and background pixel, to the plane formed by the second and third principal component, placed pixels at different locations in the chromaticity plane, where their position is compared.
Distribution: Approved for public release
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Last Update / Reviewed: July 1, 2011