新型偏振特性因子及其传递关系的研究

New polarization parameter and its transitive relation

偏振遥感图像通常可以采用强度、偏振度、偏振角或HIS柱形彩色空间表征目标偏振特性。本文通过建立光束在多层介质中传递的简单模型,找到一种新型偏振特性因子。此偏振特性因子所成图像是偏振度图像和偏振角图像信息复合的结果,其实质反映了偏振光束中的线偏振光的光强相对含量及它的偏振角方向。对伪装过的车牌进行偏振成像,实验表明此偏振特性因子可以用于特定环境下的伪装辨别。

Polarized image usually describes the polarization characteristics of objects by intensity, degree and orientation of polarization or HIS color system. By establishing simple model for polarized light passing through multilayer dielectric, a new kind of polarization parameter was found, which can reflect the state of polarized light and be well used in transitive relation of polarization parameter. This kind of transitive relation of polarization parameter reflects the interactivity between the polarized light and the polarizing medium in essence. The image of new polarization parameter is the compound image of polarization degree and the polarization angle of the polarized light, and it can embody light intensity relative percentage composition of linearly polarized light and the orientation of polarization angle essentially. By forming the images of new polarization parameter on camouflage number marking of car, it obviously shows that the new polarization parameter can be used to identify camouflage objects in some specific condition.