Reconstructing temperature field images by MWIR and LWIR based on uncooled IRFPA

Jiahong Li, Zhihao Liu, Mozhou Sha, Weiqi Jin*, Hong Guo, Li Li, Qin Guo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the development of high-performance IRFPA, temperature field image measurement has been applied to the fields of industry and agriculture, national defence, health and epidemic prevention. In order to obtain a clearer and more accurate image of temperature field, we developed a coaxial beam splitting medium wave/long wave dual-band infrared temperature field image reconstruction experimental system using uncooled wide-band IRFPA. Then, a low frequency noise correction method in gradient domain is used to reduce the temperature measurement error caused by the non-uniformity of detectors. The temperature measurement error of central field of view is less than 3.5% and that of quadrangular field of view is less than 4.5% in the temperature range of 20~80oC by calibrating the temperature of the system using blackbody. Experimental results show that the method is effective. Finally, the equivalent temperature field image to the typical outfield image is given.

Original languageEnglish
Title of host publicationInternational Conference on Laser, Optics and Optoelectronic Technology, LOPET 2021
EditorsChangsi Peng, Fengjie Cen
PublisherSPIE
ISBN (Electronic)9781510646162
DOIs
Publication statusPublished - 2021
Event2021 International Conference on Laser, Optics and Optoelectronic Technology, LOPET 2021 - Xi'an, China
Duration: 28 May 202130 May 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11885
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2021 International Conference on Laser, Optics and Optoelectronic Technology, LOPET 2021
Country/TerritoryChina
CityXi'an
Period28/05/2130/05/21

Keywords

  • LW infrared
  • MW infrared
  • Non-uniformity correction
  • Temperature image reconstruction
  • Uncooled IRFPA

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