Instrumentation, Techniques, and Measurement

Static scene statistical algorithm for nonuniformity correction in focal-plane arrays

[+] Author Affiliations
Adrian M. Catarius, Michael D. Seal

Air Force Institute of Technology, Graduate School of Engineering and Management, Department of Electrical and Computer Engineering, 2950 Hobson Way, Wright Patterson Air Force Base, Ohio 45433, United States

Opt. Eng. 54(10), 104111 (Oct 20, 2015). doi:10.1117/1.OE.54.10.104111
History: Received May 14, 2015; Accepted September 21, 2015
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Abstract.  A static scene statistical nonuniformity correction (S3NUC) method was developed based on the higher-order moments of a linear statistical model of a photodetection process. S3NUC relieves the requirement for calibrated targets or a moving scene for NUC by utilizing two data sets of different intensities but requires low scene intensity levels. The first-, second-, and third-order moments of the two data sets are used to estimate the gain and bias values for the detectors in a focal-plane array (FPA). These gain and bias values may then be used to correct the nonuniformities between detectors or to initialize other continuous calibration methods. S3NUC was successfully applied to simulated data as well as measured data at visible wavelengths.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Adrian M. Catarius and Michael D. Seal
"Static scene statistical algorithm for nonuniformity correction in focal-plane arrays", Opt. Eng. 54(10), 104111 (Oct 20, 2015). ; http://dx.doi.org/10.1117/1.OE.54.10.104111


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