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Proceedings Paper

Novel methodologies for the measurement of atmospheric turbulence effects
Author(s): Richard L. Espinola; Jae Cha; Kevin Leonard
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Paper Abstract

Atmospheric turbulence is an imaging phenomenon that introduces blur, distortion, and intensity fluctuations that corrupt image quality and can decrease target acquisition performance. The modeling of imaging sensors requires an accurate description of turbulence effects. We present two novel methodologies for the measurement of the turbulence MTF in infrared imagery. First, the structural similarity metric is used to compare pristine and degraded imagery. Second, contrast modulations of radial bar targets are analyzed to extract an equivalent blur. Human perception tests are compared against model predictions. The results show that complex turbulence effects can be measured and modeled with simple MTF blurs.

Paper Details

Date Published: 22 April 2010
PDF: 12 pages
Proc. SPIE 7662, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXI, 76620W (22 April 2010); doi: 10.1117/12.852294
Show Author Affiliations
Richard L. Espinola, U.S. RDECOM CERDEC NVESD (United States)
Jae Cha, U.S. RDECOM CERDEC NVESD (United States)
Kevin Leonard, U.S. RDECOM CERDEC NVESD (United States)


Published in SPIE Proceedings Vol. 7662:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXI
Gerald C. Holst; Keith A. Krapels, Editor(s)

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