Experimental study on polarization imaging characteristics of various materials

Polarization imaging has a lot of advantages while ordinary imaging has no, especially to highlight target in a kind of special background, which is a good auxiliary means of studying the earth's surface and atmosphere. At the 3 typical bands, visible red (670 nm), green (530 nm), blue (450 nm), through adopting the method of rotating the polarizer for calculating the Stokes vector,the polarization experiments were carried out in 6 kinds of materials which are lawn, stone, asphalt surface, glass, rubber and iron plate respectively, and the degree of polarization and the contrast of polarization degree were analyzed in details.The experimental results show that part of target cannot be observed easily in intensity image under a certain background,however, polarization images have enough brightness information and contains rich details to identify target for the eyes easily. In addition, there is a stong relationship between the polarization imaging features and the material, imaging band, observing time.