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Proceedings Paper

Identification of handheld objects for electro-optic/FLIR applications
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Paper Abstract

This paper describes research on the determination of the fifty-percent probability of identification cycle criterion (N50) for two sets of handheld objects. The first set consists of 12 objects which are commonly held in a single hand. The second set consists of 10 objects commonly held in both hands. These sets consist of not only typical civilian handheld objects but also objects that are potentially lethal. A pistol, a cell phone, a rocket propelled grenade (RPG) launcher, and a broom are examples of the objects in these sets. The discrimination of these objects is an inherent part of homeland security, force protection, and also general population security. Objects were imaged from each set in the visible and mid-wave infrared (MWIR) spectrum. Various levels of blur are then applied to these images. These blurred images were then used in a forced choice perception experiment. Results were analyzed as a function of blur level and target size to give identification probability as a function of resolvable cycles on target. These results are applicable to handheld object target acquisition estimates for visible imaging systems and MWIR systems. This research provides guidance in the design and analysis of electro-optical systems and forward-looking infrared (FLIR) systems for use in homeland security, force protection, and also general population security.

Paper Details

Date Published: 5 August 2004
PDF: 11 pages
Proc. SPIE 5407, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XV, (5 August 2004); doi: 10.1117/12.542066
Show Author Affiliations
Steve K. Moyer, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Eric Flug, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Timothy C. Edwards, Redstone Technical Testing Ctr. (United States)
Keith A. Krapels, Office of Naval Research (United States)
John Scarbrough, Univ. of Tennessee/Knoxville (United States)


Published in SPIE Proceedings Vol. 5407:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XV
Gerald C. Holst, Editor(s)

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