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Proceedings Paper

The effect of fill factor of infrared FPA sensor on microscanning imagery quality
Author(s): Xiao-rui Wang; Jian-qi Zhang; Hong-hua Chang
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Paper Abstract

Micro-scanning is an important technique in high-resolution IR imaging field. It can increase the system resolution and improve the performance of imaging systems. For the design of super-resolution IR imaging system, it is necessary to choose the optimum micros-canning mode according to the particular fill factor of sensor. Hence, it is very important to study the effect of fill factor on the micro-scanning image quality. Under some assumptions, this paper introduces the sampling-averaging MTF of detector array at spatial Nyquist frequency as a figure of merit to quantitatively evaluate the improvement of different micro-scanning modes to image quality for different fill factors (1, 2/3, 1/2, 1/3) of infrared sensor. Finally, typical sampling imaging processes of focal plane array with the above fill factors are simulated. Experimental results qualitatively descript the effect of fill factor on the micro-scanning image, and show a good agreement with theoretical analysis.

Paper Details

Date Published: 10 January 2005
PDF: 8 pages
Proc. SPIE 5640, Infrared Components and Their Applications, (10 January 2005); doi: 10.1117/12.573414
Show Author Affiliations
Xiao-rui Wang, Xidian Univ. (China)
Xi'an Institute of Applied Optics (China)
Jian-qi Zhang, Xi'an Institute of Applied Optics (China)
Hong-hua Chang, Xidian Univ. (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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