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1 October 1998 Setting thresholds in infrared images for the detection of concealed weapons
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This paper addresses the problem of finding the important thresholds in a scene for the detection of concealed weapon(s). Whenever the weapon's temperature is very close to that of the human body, the intensities in the area of the weapon are close to those of the human body. Thus, in a histogram, the intensities of the weapon area overlap with those of the human body causing (1) the weapon's intensities not to be identifiable in the histogram of the overall scene, and (2) the weapon not to be visually distinguishable in the scene. This problem is addressed by the mapping procedure of A'SCAPE. The procedure automatically detects all important thresholds in the scene including those separating regions with overlapping histograms. Real data of an IR scene is used to illustrate the procedure.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mohamed-Adel Slamani, Mark G. Alford, and David D. Ferris Jr. "Setting thresholds in infrared images for the detection of concealed weapons", Proc. SPIE 3460, Applications of Digital Image Processing XXI, (1 October 1998);

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