一种基于选通偏振成像的红外伪装识别方法研究  

Method of infrared camouflage target recognition based on polarization-gated imaging

作　　者：王元铂[1] 沈洪斌[1] 李刚[1] 黄敬霞[1] 李莉[1] 毛少娟[1] 

机构地区：[1]军械工程学院,河北石家庄050003

出　　处：《应用光学》2013年第5期860-863,共4页Journal of Applied Optics

基　　金：军械工程学院基金资助项目(YJJXM11012)

摘　　要：为解决红外伪装对传统热成像系统的干扰问题,达到在战场上识别红外伪装目标的目的,提出一种基于选通偏振成像的红外伪装识别方法。红外偏振图像的获取通过扫描机构对4个固定放置的偏振片选通实现。实验结果表明,该方法可以4帧/s的频率实现对场景红外偏振度图像的获取。得到的红外偏振度图像与原始红外辐射强度图像相比,灰度均值提高了14%、灰度标准差提高了42%、平均梯度提高了98%。A method of infrared camouflage target recognition based on polarization-gated ima- ging was proposed, in order to prevent the infrared camouflage from disturbing the traditional thermal imaging system and recognize the IR camouflage targets on the battlefield. The acqui- sition of infrared polarization images was implemented through 4 fixed polarizers gated by scan- ner. Experiment result shows that the method can successfully acquire the IR polarization im- age at the rate of 4 f/s, meaning this method is real-time to a certain extent. Comparing with the original thermal intensity image, the polarization image has an increase of average gray- scale value up to 14%, gray-scale standard deviation up to 42% and average gradient up to 98%, meaning an ideal camouflage target recognition effect.

关 键 词：选通偏振成像 红外伪装识别 非制冷焦平面阵列 MATLAB 

分 类 号：TN219[电子电信—物理电子学] TH745[机械工程—光学工程]