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Proceedings Paper

Characteristics of dc restoration for thermal imagers
Author(s): Shi-Chen Chao; Hau-Ming Hwang; An-Jen Shen; Chung-Chiu Wu
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Paper Abstract

The problems of dc restoration have bothered the designers of the thermal imager for many years. The distortion phenomena appear differently in different systems. The shape of distortion is dependent on the scan rate, the RC time constant or the width of the target. From the results of analysis, it shows that the MRT curve is quantitatively related to the time constant and scan rate; it also shows that dc drops are serious for low time constant or slow scan rate, and the 1/f noise is apparent in this case. From this analysis, the best conditions can be evaluated for different systems, and this method is helpful in designing a good system.

Paper Details

Date Published: 17 October 1994
PDF: 8 pages
Proc. SPIE 2269, Infrared Technology XX, (17 October 1994); doi: 10.1117/12.188669
Show Author Affiliations
Shi-Chen Chao, Chung Shan Institute of Science and Technology (Taiwan)
Hau-Ming Hwang, Chung Shan Institute of Science and Technology (Taiwan)
An-Jen Shen, Chung Shan Institute of Science and Technology (Taiwan)
Chung-Chiu Wu, Chung Shan Institute of Science and Technology (Taiwan)

Published in SPIE Proceedings Vol. 2269:
Infrared Technology XX
Bjorn F. Andresen, Editor(s)

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