Two-point nonuniformity correction based on LMS

Su-xia Xing; Junju Zhang; Lianjun Sun; Ben-kang Chang; Yun-sheng Qian

doi:10.1117/12.566145

10 January 2005 Two-point nonuniformity correction based on LMS

Su-xia Xing, Junju Zhang, Lianjun Sun, Ben-kang Chang, Yun-sheng Qian

Proceedings Volume 5640, Infrared Components and Their Applications; (2005) https://doi.org/10.1117/12.566145
Event: Photonics Asia, 2004, Beijing, China

Abstract

In real-time system, the Infrared Focal Plane Array (IRFPA) should be compensated in traditional method of two-point temperature non-uniformity correction (NUC) before system was used every time, which make the system complex. Based on discussion of traditional two-point temperature NUC algorithm, Two-point temperature NUC based on least mean square (LMS) algorithm was proposed in the paper. In the view of the LMS algorithm theory, the correction gain and offset coefficients were iterated one by one during image processing, so that the expected correction result were obtained in little time. At the same time, the correction and coefficients iteration processes were completed in FPGA and DSP respectively, and make the arithmetic structure simple. The simplified structure, low cost and out-door suitable operation-systems are the merits of the system.

Citation Download Citation

Su-xia Xing, Junju Zhang, Lianjun Sun, Ben-kang Chang, and Yun-sheng Qian "Two-point nonuniformity correction based on LMS", Proc. SPIE 5640, Infrared Components and Their Applications, (10 January 2005); https://doi.org/10.1117/12.566145

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