Aerosol MTF revisited

Norman S. Kopeika; Arkadi Zilberman; Yitzhak Yitzhaky

doi:10.1117/12.2052912

29 May 2014 Aerosol MTF revisited

Norman S. Kopeika, Arkadi Zilberman, Yitzhak Yitzhaky

Proceedings Volume 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV; 907119 (2014) https://doi.org/10.1117/12.2052912
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Different views of the significance of aerosol MTF have been reported. For example, one recent paper [OE, 52(4)/2013, pp. 046201] claims that the aerosol MTF "contrast reduction is approximately independent of spatial frequency, and image blur is practically negligible". On the other hand, another recent paper [JOSA A, 11/2013, pp. 2244-2252] claims that aerosols "can have a non-negligible effect on the atmospheric point spread function". We present clear experimental evidence of common significant aerosol blur and evidence that aerosol contrast reduction can be extremely significant. In the IR, it is more appropriate to refer to such phenomena as aerosol-absorption MTF. The role of imaging system instrumentation on such MTF is addressed too.

Citation Download Citation

Norman S. Kopeika, Arkadi Zilberman, and Yitzhak Yitzhaky "Aerosol MTF revisited", Proc. SPIE 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV, 907119 (29 May 2014); https://doi.org/10.1117/12.2052912

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