Kalman-filtering nonuniformity correction algorithm based on nonlinear model

被引：0

作者：

Zhou, Huixin ^{[1
]}

Wei, Yajiao ^{[1
]}

Qin, Hanlin ^{[1
]}

Wang, Bingjian ^{[1
]}

机构：

[1] School of Technical Physics, Xidian University

来源：

Guangxue Xuebao/Acta Optica Sinica | 2009年 / 29卷 / 02期

关键词：

Infrared focal-plane arrays; Infrared imaging systems; Kalman filter; Nonlinear model; Nonuniformity correction (NUC);

D O I：

10.3788/AOS20082902.0378

中图分类号：

学科分类号：

摘要：

For resolving the influence that the nonlinear response of detectors imposed on the nonuniformity correction (NUC) for infrared focal plane arrays, a new improved Kalman-filtering nonuniformity correction algorithm with a nonlinear model is presented. In this algorithm, the nonlinear image data is translated into linearized one firstly, then the Kalman-filter NUC algorithm with a linear model is utilized to correct nonuniformity of the linearized image. Finally the exponents of the corrected linearized image data is calculated, and the uniformity image of the original one is achieved. Experimental results indicate that the presented algorithm not only inherits the advantage of the original algorithm, which resolves the problem of detector offset and gain drift with time by updating NUC parameters with information of the current scene, but also reduces the influence of the detector nonlinear response to the NUC performance in some degree, and acquires good NUC effect.

引用

页码：378 / 381

页数：3

共 11 条

[1]

Milton A.F., Barone F.R., Kruer M.R., Influence of nonuniformity on infrared focal plan array performance, SPIE Opt. Eng., 24, 5, pp. 855-862, (1985)

[2]

Perry D.L., Dereniak E.L., Linear theory of nonuniformity correction in infrared staring sensors, SPIE Opt. Eng., 32, pp. 1854-1859, (1993)

[3]

Harris J.G., Chiang Y.M., Nonuniformity correction of infrared image sequences using the constant-statistics constrain, IEEE Transactions on Image Processing, 8, pp. 1148-1151, (1999)

[4]

Scribner D.A., Sarkay K.A., Caulfield J.T., Et al., Nonuniformity correction for staring focal plane arrays using scene-base technology, SPIE, 1308, pp. 224-233, (1990)

[5]

Scribner D.A., Sarkay K.A., Kruer M.R., Et al., Adaptive nonuniformity correction for IR focal plane arrays using neural networks, SPIE, 1541, pp. 100-109, (1991)

[6]

Wang B., Liu S., Lai R., Et al., Adaptive nonuniformity correction algorithm for IRFPA based on neural network, J. Infrared Millim. Waves, 25, 6, pp. 405-407, (2006)

[7]

Li Q., Liu S., Wang B., Et al., Wiener based nonuniformity correction algorithm for IRFPA, Acta Photonic Sinica, 35, 12, pp. 1908-1911, (2006)

[8]

Qin H., Zhou H., Liu S., Nonuniformity correction algorithm for infrared focal plane arrays based on wavelet transform, Acta Optica Sinica, 27, 9, pp. 1617-1620, (2007)

[9]

Torres S.N., Hayat M.M., Kalman filtering for adaptive nonuniformity correction in infrared focal plane arrays, J. Opt. Soc. Am. A, 20, pp. 470-480, (2003)

[10]

Zhang T., Shi C., Li J., Et al., Overview of research on the adaptive algorithms for nonuniformity corrections of infrared focal plane array, J. Infrared Millim. Waves, 26, 6, pp. 409-413, (2007)

← 1 2 →