Estimating Elliptical Polarization with Linear and Circular Polarization in Image Sensing

Investigating light polarization for a camera image has been a challenging issue. Linear and circular polarization properties have been investigated separately. We introduce how to estimate the elliptical polarization for a camera image. Linear polarization and circular polarization properties are combined to obtain the elliptical polarization. By observing a series of polarization-filtered images, we can estimate the full range of polarization direction as well as the magnitude for each direction for the elliptical polarization. The elliptical polarization can be applied to estimate linear and circular polarization properties together and also measure complex patterns of light on the surface of materials. Copyright © The Korean Institute of Electrical Engineers