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Proceedings Paper

Simulation of sampling effects in FPAs
Author(s): Thomas H. Cook; Charles S. Hall; Frederick G. Smith; Timothy J. Rogne
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Paper Abstract

The use of multiplexers and large focal plane arrays in advanced thermal imaging systems has drawn renewed attention to sampling and aliasing issues in imaging applications. As evidenced by discussions in a recent workshop, there is no clear consensus among experts whether aliasing in sensor designs can be readily tolerated, or must be avoided at all cost. Further, there is no straightforward, analytical method that can answer the question, particularly when considering image interpreters as different as humans and autonomous target recognizers (ATR). However, the means exist for investigating sampling and aliasing issues through computer simulation. The U.S. Army Tank-Automotive Command (TACOM) Thermal Image Model (TTIM) provides realistic sensor imagery that can be evaluated by both human observers and TRs. This paper briefly describes the history and current status of TTIM, explains the simulation of FPA sampling effects, presents validation results of the FPA sensor model, and demonstrates the utility of TTIM for investigating sampling effects in imagery.

Paper Details

Date Published: 1 September 1991
PDF: 12 pages
Proc. SPIE 1488, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II, (1 September 1991); doi: 10.1117/12.45804
Show Author Affiliations
Thomas H. Cook, OptiMetrics, Inc. (United States)
Charles S. Hall, OptiMetrics, Inc. (United States)
Frederick G. Smith, OptiMetrics, Inc. (United States)
Timothy J. Rogne, OptiMetrics, Inc. (United States)

Published in SPIE Proceedings Vol. 1488:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing II
Gerald C. Holst, Editor(s)

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