Steven L. Jacques, Ph.D., Department of Electrical and Computer Engineering
Oregon Graduate Institute, Portland, Oregon, USA. email: firstname.lastname@example.org, https://omlc.org
A prototype polarization camera.
Two images are acquires: one parallel and one perpendicular, based on how the polarizer in front of the camera is oriented. Then these two images are algebraically combined to yield a "POLARIZATION IMAGE".
The numerator is sensitive to polarized light, rejects randomly polarized diffuse reflectance.
Normalization by the denominator cancels common attenuation due to melanin pigmentation.