Effect of image magnification on target acquisition performance

Brian P. Teaney; Jonathan Fanning

doi:10.1117/12.779193

11 April 2008 Effect of image magnification on target acquisition performance

Brian P. Teaney, Jonathan Fanning

Proceedings Volume 6941, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX; 69410P (2008) https://doi.org/10.1117/12.779193
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

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.

Citation Download Citation

Brian P. Teaney and Jonathan Fanning "Effect of image magnification on target acquisition performance", Proc. SPIE 6941, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XIX, 69410P (11 April 2008); https://doi.org/10.1117/12.779193

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