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Proceedings Paper

Sine wave contrast target for direct view optics field performance measurements
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Paper Abstract

In this research, a sensor performance measurement technique is developed similar to the Triangle Orientation Discrimination (TOD), but sinusoids are used instead of triangles. Also, instead of infrared systems, the technique is applied to the eye and direct view optics. This new technique is called Contrast Threshold Function Orientation Discrimination (CTFOD) and the result is a "system" contrast threshold function that can be used with Vollmerhausen's Target Task Performance (TTP) metric. The technique is a simple technique that can be measured in the field using a target board where the results provide for the eye, the optics transfer function and transmission, and any atmospheric turbulence effects that are present.

Paper Details

Date Published: 30 April 2007
PDF: 13 pages
Proc. SPIE 6543, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XVIII, 65430J (30 April 2007); doi: 10.1117/12.719631
Show Author Affiliations
Keith Krapels, Office of Naval Research/Naval Research Laboratory Reserves (United States)
Paul Larson, Office of Naval Research/Naval Research Laboratory Reserves (United States)
Ronald G. Driggers, U.S. Army Night Vision and Electronic Sensors Directorate (United States)
Lou Larsen, 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. 6543:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XVIII
Gerald C. Holst, Editor(s)

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