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Proceedings Paper

Identifiability: a fast way to measure identification performance
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Paper Abstract

We present a new measure called target identifiability, as an efficient alternative for measuring identification scores. Identifiability is operationally defined as the amount of blur required to reduce the target signature to its identification threshold. It can quickly be determined using a simple adjustment procedure. To validate the new measure, we measured the identifiability of targets in a set of real and simulated thermal images. The identification scores for these targets were available from a previous study. Our results show that identifiability indeed determines identification performance. Sufficient accuracy can be obtained with only a few (typically 2 or 3) trained observers. The associated measurement procedure is simple and requires only a limited amount of time.

Paper Details

Date Published: 5 August 2004
PDF: 8 pages
Proc. SPIE 5407, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XV, (5 August 2004); doi: 10.1117/12.542025
Show Author Affiliations
Maarten A. Hogervorst, TNO Human Factors (Netherlands)
Alexander Toet, TNO Human Factors (Netherlands)
Piet Bijl, TNO Human Factors (Netherlands)
Brian Miller, U.S. Army Night Vision and Electronic Sensors Directorate (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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