Method for determining stokes parameters

Details Method for determining stokes parameters Method for determining stokes parameters

2008-03-25

2008-03-25

Punnoose, Roy M (Department: 2886)

Optics: measuring and testing

By polarized light examination

Reexamination Certificate

active

07349087

ABSTRACT:
A method of determining polarization profiles of points in a scene from video frames using Stokes parameters. The method includes emitting scene light rays from points in a region in a scene, and emitting a correlator light ray from a correlator. The correlator includes a uniform light source, a second linear polarizer, and a fixed retarder. The method further includes substantially simultaneously transmitting the scene light rays and the correlator light ray through a color filter and a Stokes filter that includes a rotating retarder having angular positions Ω, and a first linear polarizer having a transmission axis to a video camera having a video frame, projecting onto respective pixels in the video frame and recording as two-dimensional (2-D) arrays images corresponding to the scene light rays and the correlator light ray, and downloading the images into the computer system and storing the images into a memory in the computer system.

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patent: 5949480 (1999-09-01), Gerhart et al.
patent: 6552836 (2003-04-01), Miller
patent: 7218398 (2007-05-01), Smith

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