Patent Document ID: 9741163
Application ID: 14978265
Patent Status: 1

Claim One:
1. A method of computing calibration maps for 3-D polarimetric imaging of an object by a sensor to compensate for structured scene reflections, comprising: providing a far-field radiance map L(θ,φ) in a spectral band of a scene from the perspective of the object where θ and φ are the elevation angle and azimuth angle components of a surface normal of the object; using a microfacet scattering model to compute a polarized bidirectional distribution function (BRDF) of a surface of the object; and using the far-field radiance map L(θ j ,φ k ), polarized BRDF and a line-of-sight vector from the sensor to the object to compute surface normal calibration maps φ(AoLP) and θ(DoLP,φ) where AoLP and DoLP are the values of the Angle of Linear Polarization and Degree of Linear Polarization images at a given pixel.