Improvement in adaptive nonuniformity correction method with nonlinear model for infrared focal plane arrays

The scene adaptive nonuniformity correction (NUC) technique is commonly used to decrease the fixed pattern noise (FPN) in infrared focal plane arrays (IRFPA). However, the correction precision of existing scene adaptive NUC methods is reduced by the nonlinear response of IRFPA detectors seriously. I...

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Bibliographic Details
Published in:Optics communications 2009-09, Vol.282 (17), p.3444-3447
Main Authors: Rui, Lai, Yin-Tang, Yang, Qing, Li, Hui-Xin, Zhou
Format: Article
Language:English
Subjects:
Adaptive filtering
Bolometer
infrared, submillimeter wave, microwave and radiowave receivers and detectors
Exact sciences and technology
Infrared focal plane arrays
Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Nonlinear response model
Nonuniformity correction
Physics
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Summary:The scene adaptive nonuniformity correction (NUC) technique is commonly used to decrease the fixed pattern noise (FPN) in infrared focal plane arrays (IRFPA). However, the correction precision of existing scene adaptive NUC methods is reduced by the nonlinear response of IRFPA detectors seriously. In this paper, an improved scene adaptive NUC method that employs “S”-curve model to approximate the detector response is presented. The performance of the proposed method is tested with real infrared video sequence, and the experimental results validate that our method can promote the correction precision considerably.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2009.05.046