Two-point correction and minimum filter-based nonuniformity correction for scan-based aerial infrared cameras

Sungho Kim

doi:10.1117/1.OE.51.10.106401

18 October 2012 Two-point correction and minimum filter-based nonuniformity correction for scan-based aerial infrared cameras

Sungho Kim

Author Affiliations +

Optical Engineering, Vol. 51, Issue 10, 106401 (October 2012). https://doi.org/10.1117/1.OE.51.10.106401

Abstract

Two-point correction-based nonuniformity correction of a scan-based long wave infrared camera can be successful in normal working environments. However, the method produces strong fixed-pattern noise in cluttered aerial environments. We analyze the mechanism of such phenomena and propose a nonuniformity correction method by combining a reference-based approach and a nonlinear filter-based residual offset estimation method. The nonlinear filtering process of row directional minimum filtering after two-point correction can remove the nonuniformity around cluttered aerial infrared images. Experimental results validate the feasibility of the proposed method.

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Sungho Kim "Two-point correction and minimum filter-based nonuniformity correction for scan-based aerial infrared cameras," Optical Engineering 51(10), 106401 (18 October 2012). https://doi.org/10.1117/1.OE.51.10.106401

Published: 18 October 2012

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