Improved nonlinear method of nonuniformity correction for infrared focal plane arrays

Hua Jiang; Qinghui Li

doi:10.1117/12.749223

15 November 2007 Improved nonlinear method of nonuniformity correction for infrared focal plane arrays

Hua Jiang, Qinghui Li

Proceedings Volume 6787, MIPPR 2007: Multispectral Image Processing; 678716 (2007) https://doi.org/10.1117/12.749223
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

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.

Citation Download Citation

Hua Jiang and Qinghui Li "Improved nonlinear method of nonuniformity correction for infrared focal plane arrays", Proc. SPIE 6787, MIPPR 2007: Multispectral Image Processing, 678716 (15 November 2007); https://doi.org/10.1117/12.749223

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