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Proceedings Paper

Improving MTF measurements of under-sampled optical systems
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Paper Abstract

The modulation transfer function (MTF) of optical systems is often derived by taking the Fourier transform (FT) of a measured line spread function. Recently, methods of performing Fourier transforms that are common in infrared spectroscopy have been applied to MTF calculations. Proper apodization and phase correction have been shown to improve MTF calculations in optical systems. In this paper these methods as well as another filtering algorithm based on phase are applied to under-sampled optical systems. Results, both with and without the additional processing are presented and the differences are discussed.

Paper Details

Date Published: 1 May 2009
PDF: 12 pages
Proc. SPIE 7300, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XX, 73000R (1 May 2009); doi: 10.1117/12.818388
Show Author Affiliations
Joseph D. LaVeigne, Santa Barbara Infrared, Inc. (United States)
Stephen D. Burks, U.S. Army RDECOM CERDEC NVESD (United States)


Published in SPIE Proceedings Vol. 7300:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XX
Gerald C. Holst, Editor(s)

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