Polarimetric imaging system based on double-layer prisms pair with polarizer coating and one camera

A novel polarimetric imaging system is proposed, which is based on one complementary metal-oxide-semiconductor (CMOS) camera and double-layer prisms pair. Four polarizers, whose axes were set at different angles and affixed to the four prisms. The CMOS camera is used to simultaneously record the intensity of the light passing through the prisms with four specific polarization information. An algorithm is adopted to align and correct parallax to generate accurate Stokes parameters. Indoor and outdoor experimental performances verify the effectiveness and high measurement accuracy of the proposed system.