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Optical Engineering

Two-point correction and minimum filter-based nonuniformity correction for scan-based aerial infrared cameras
Author(s): Sungho Kim
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Paper 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.

Paper Details

Date Published: 18 October 2012
PDF: 13 pages
Opt. Eng. 51(10) 106401 doi: 10.1117/1.OE.51.10.106401
Published in: Optical Engineering Volume 51, Issue 10
Show Author Affiliations
Sungho Kim, Yeungnam Univ. (Korea, Republic of)


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