Abstract

This paper presents a novel filtering method with a double triangular prism in an optical-readout thermal imaging system. First, the working principle of this system is described in detail, followed by the analysis of sensitivity. Then, infrared images of hands are obtained. On the basis of the analysis, it is concluded that this filtering method, whose noise equivalent temperature difference (NETD) can reach 145 mK, is effective in obtaining high-quality images. Finally, comparing the filtering method with a knife-edge filter, we can draw the conclusion that the filtering method can effectively improve image quality (the value of NETD is less than that of a knife-edge filter).

© 2012 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
A novel optical readout infrared FPA imaging system with fiber reference channel

Xuhong Chu, Yuejin Zhao, Liquan Dong, Qian Jia, Lingqin Kong, Xiaomei Yu, Xiaohua Liu, Cheng Gong, and Yufeng Jin
Opt. Express 20(9) 9516-9522 (2012)

Optical readout sensitivity of deformed microreflector for uncooled infrared detector: theoretical model and experimental validation

Teng Cheng, Qingchuan Zhang, Binbin Jiao, Dapeng Chen, and Xiaoping Wu
J. Opt. Soc. Am. A 26(11) 2353-2361 (2009)

All-optical background subtraction readout method for bimaterial cantilever array sensing

Cheng Gong, Yuejin Zhao, Liquan Dong, Xiaomei Yu, Ping Chen, and Weiwei Liu
Opt. Express 23(16) 20576-20581 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (19)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription