一种基于选通偏振成像的红外伪装识别方法研究

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%。

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

A method of infrared camouflage target recognition based on polarization-gated imaging 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 acquisition of infrared polarization images was implemented through 4 fixed polarizers gated by scanner. Experiment result shows that the method can successfully acquire the IR polarization image 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.