热成像敏感器常常被用来搜索和识别目标。这些敏感器所获取的是目标的辐射强度。用热强度进行搜索和识别时有一个基本限制,即,热强度给出的是一种参数,而三维目标的表面取向是由两个角度确定的。热辐射偏振中常常含有与表面取向的这两个角度有关的信息。偏振还可以给出有关目标表面特性的有用信 Thermal imaging sensors are often used to search and identify targets. What these sensors get is the target’s radiation intensity. There is a fundamental limitation in the search and identification of thermal intensity, that is, the thermal intensity gives a parameter, and the three-dimensional target’s surface orientation is determined from two angles. Thermal radiation polarizations often contain information about these two angles of surface orientation. Polarization can also give useful information about the characteristics of the target surface