Accession Number:

ADD020361

Title:

Simultaneous 4-Stokes Parameter Determination Using a Single Digital Image

Descriptive Note:

Patent, filed 25 Sep 2006, patented 12 Jun 2007

Corporate Author:

DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s):

Report Date:

2007-06-12

Pagination or Media Count:

11.0

Abstract:

A method for determining and displaying polarization profiles of points in a scene from a single imaging detector array, which utilizes a filter system comprised of a retarder, four linear polarizers, four lenses, a color filter, camera lens and CCD video camera. Light from points in a scene are transmitted through the system and exits with attenuated intensities unique for each wavelength of the light. A narrowband color filter selects the wavelength of interest. The four lenses in the system produce four images of the scene, which are recorded as a single CCD-image. The attenuated intensities in each of the four scene-images are used to calculate the Stokes parameters for selected points in the scene for the selected wavelength. A computer program separates the four scene-images in the CCD-image, crops, registers them and calculates the Stokes parameters for each point in the cropped scene.

Subject Categories:

  • Photography
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE