Share Email Print
cover

Proceedings Paper

Effect of image magnification on target acquisition performance
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The current US Army target acquisition models have a dependence on magnification. This is due in part to the structure of the observer Contrast Threshold Function (CTF) used in the model. Given the shape of the CTF, both over-magnification and under-magnification can dramatically impact modeled performance. This paper presents the results from two different perception studies, one using degraded imagery and the other using field imagery. The results presented demonstrate the correlation between observer performance and model prediction and provide guidance accurately representing system performance in under and over-magnified cases.

Paper Details

Date Published: 11 April 2008
PDF: 8 pages
Proc. SPIE 6941, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX, 69410P (11 April 2008); doi: 10.1117/12.779193
Show Author Affiliations
Brian P. Teaney, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Jonathan Fanning, U.S. Army Night Vision and Electronic Sensors Directorate (United States)


Published in SPIE Proceedings Vol. 6941:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX
Gerald C. Holst, Editor(s)

© SPIE. Terms of Use
Back to Top