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Proceedings Paper

Two-point nonuniformity correction based on LMS
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Paper 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.

Paper Details

Date Published: 10 January 2005
PDF: 7 pages
Proc. SPIE 5640, Infrared Components and Their Applications, (10 January 2005); doi: 10.1117/12.566145
Show Author Affiliations
Su-xia Xing, Nanjing Univ. of Science and Technology (China)
Junju Zhang, Nanjing Univ. of Science and Technology (China)
Lianjun Sun, Nanjing Univ. of Science and Technology (China)
Ben-kang Chang, Nanjing Univ. of Science and Technology (China)
Yun-sheng Qian, Nanjing Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 5640:
Infrared Components and Their Applications
Haimei Gong; Yi Cai; Jean-Pierre Chatard, Editor(s)

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