Real-time Mid-Infrared Polarization Imaging System Design for Marine Targets detection
Received:February 27, 2018  Revised:September 28, 2018  download
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Author NameAffiliationE-mail
HAN Ping-li Xidian University 2008hanpingli@163.com 
LIU Fei Xidian University feiliu@xidian.edu.cn 
WEI Ya-zhe Xidian University  
Shao Xiao-peng Xidian University xpshao@xidian.edu.cn 
Abstract:In marine target detection, a target could be lost by a mid-infrared detector if it’s located in sun glint area. To cope with this problem, a real-time mid-infrared polarization imaging system employing a Wollaston Prism was designed which utilized the polarization characteristics of sun glint. The Wollaston Prism enabled beam separation into ordinary and extraordinary rays which vibrate at two orthogonally polarized directions, and two images were acquired on the same detector plane with light focused by an imaging lens. Degree of polarization of the target scene could be calculated and assist to detect marine targets. It enables effective sun glint suppression and marine targets detection.
keywords:sun glint, mid-infrared, polarization imaging, Wollaston Prism
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Copyright:《Journal of Infrared And Millimeter Waves》