红外成像可以获得目标的强度信息, 偏振成像可以获得目标的偏振信息, 二者结合更有利于目标的探测识别。实验选用天空中飞机、海面上船只、草地上车辆三种典型自然背景下的典型目标作为研究对象, 并利用自行研制的四通道同时长波红外偏振成像系统实现图像采集。实验结果表明, 相对于传统的长波红外成像, 长波红外偏振成像具有以下优势: 长波红外偏振度图像在一定情况下具有更高的图像对比度, 有利于目标的探测识别; 长波红外偏振角图像可以突出目标细节, 有利于观察者对场景内容的理解; 长波红外偏振度和偏振角图像在一定情况下可以抑制杂波干扰, 有利于杂波情形下的目标成像研究。

The infrared imaging technology can acquire the intensity information of targets, and polarization imaging technology can acquire the polarization information of targets. Combination of the two technology is more conducive to the target detection and recognition. Experiments focused on typical targets under typical backgrounds, such as the plane in the sky, the ship on the sea, and the vehicle on the grass. In Experiments, the four-channel long wave infrared polarization imaging (LWIPI) system developed was employed to acquire images. Experimental results show that, compared with traditional long-wave infrared images, LWIPI has the following advantages: (1) the long wave infrared polarization degree image has a higher image contrast in a certain situation, which is beneficial to the target detection and recognition; (2) the long wave infrared polarization angle image can highlight target details, which is beneficial to the viewer′s understanding of the content of the scene; (3) the long wave infrared polarization degree image and angle image can suppress clutter in a certain situation, which is beneficial to target imaging studies under the condition of a clutter.