Polarization is the important feature of reflected light from object (including wavelength, amplitude, phase, and po-larization). According to the Fresnel reflection law, polarized characteristic will occur within the reflecting effect or radiating effect, which is the foundation for polarization remote sensing. Especially, man-made objects typically produce relatively strong polarization reflection signatures compared to natural materials. Theses signatures can be exploited for target or image contrast enhancement. Airborne imaging polarimeter is one of the important research techniques in the remote sensing fields which could be used to further describe the surface roughness, texture direc-tion and surface orientation of the interesting object, especially for the recognition of object contour and surface roughness.