Improving MTF measurements of under-sampled optical systems

Joseph D. LaVeigne; Stephen D. Burks

doi:10.1117/12.818388

1 May 2009 Improving MTF measurements of under-sampled optical systems

Proceedings Volume 7300, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XX; 73000R (2009) https://doi.org/10.1117/12.818388
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

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.

Citation Download Citation

Joseph D. LaVeigne and Stephen D. Burks "Improving MTF measurements of under-sampled optical systems", Proc. SPIE 7300, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XX, 73000R (1 May 2009); https://doi.org/10.1117/12.818388

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