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Target Acquisition

New metric for predicting target acquisition performance

[+] Author Affiliations
Richard H. Vollmerhausen, Eddie Jacobs, Ronald G. Driggers

U.S. Army Research, Development and Engineering Command, CERDEC, Night Vision and Electronic Sensors Directorate, Fort Belvoir, Virginia 22060

Opt. Eng. 43(11), 2806-2818 (Nov 01, 2004). doi:10.1117/1.1799111
History: Received Jan. 21, 2004; Revised Apr. 12, 2004; Accepted Apr. 19, 2004; Online November 03, 2004
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The Johnson criteria have been shown to be fundamentally flawed due to their insensitivity to effects below the limiting frequency. This flaw makes predictions for many modern imaging systems inaccurate. A new target acquisition metric, the targeting task performance (TTP) metric, has been developed that provides better accuracy than the Johnson criteria. Further, unlike the Johnson criteria, the TTP metric can be applied directly to sampled imagers and to imagers that exhibit colored (spectrally weighted) noise due to frequency boost. Experimental data using both target recognition and target identification tasks show the problems with the Johnson criteria and illustrate the robust performance of the TTP metric. The simplicity of implementing a range performance model with the Johnson criteria is retained by the TTP metric while extending applicability of the model to sampled imagers and digital image enhancement. © 2004 Society of Photo-Optical Instrumentation Engineers.

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© 2004 Society of Photo-Optical Instrumentation Engineers

Citation

Richard H. Vollmerhausen ; Eddie Jacobs and Ronald G. Driggers
"New metric for predicting target acquisition performance", Opt. Eng. 43(11), 2806-2818 (Nov 01, 2004). ; http://dx.doi.org/10.1117/1.1799111


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