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Proceedings Paper

Improved nonlinear method of nonuniformity correction for infrared focal plane arrays
Author(s): Hua Jiang; Qinghui Li
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Paper Abstract

In this paper, a nonlinear model of nonuniformity correction (NUC) algorithm based on Kalman Filter is adopted and improved by using piecewise method of detector response, which is on the premise that response factors of each detector in infrared focal plane arrays (IRFPA) are regarded as random state variables modeled by a discrete-time Gauss-Markov process. The effect of nonlinear response of the IRFPA detectors to the NUC accuracy can be solved by our algorithm effectively. The algorithm can also improve the NUC result, especially, in the condition of wide dynamic range application. The experimental results show that our algorithm gives good correction precision and performance.

Paper Details

Date Published: 15 November 2007
PDF: 6 pages
Proc. SPIE 6787, MIPPR 2007: Multispectral Image Processing, 678716 (15 November 2007); doi: 10.1117/12.749223
Show Author Affiliations
Hua Jiang, Xidian Univ. (China)
Qinghui Li, Xidian Univ. (China)


Published in SPIE Proceedings Vol. 6787:
MIPPR 2007: Multispectral Image Processing

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