Invention Grant
US07173698B2 Simultaneous 4-stokes parameter determination using a single digital image
失效
使用单个数字图像同时进行4-stokes参数确定
- Patent Title: Simultaneous 4-stokes parameter determination using a single digital image
- Patent Title (中): 使用单个数字图像同时进行4-stokes参数确定
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Application No.: US10822355Application Date: 2004-04-13
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Publication No.: US07173698B2Publication Date: 2007-02-06
- Inventor: Grant Gerhart , Roy Matchko
- Applicant: Grant Gerhart , Roy Matchko
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Secretary of the Army
- Current Assignee: The United States of America as represented by the Secretary of the Army
- Current Assignee Address: US DC Washington
- Agent David L. Kuhn; Thomas W. Saur; Luis Miguel Acosta
- Main IPC: G01J4/00
- IPC: G01J4/00

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 unique pseudo-color scheme that utilizes the Poincarè sphere is used for encoding and displaying polarization parameters.
Public/Granted literature
- US20050225761A1 Simultaneous 4-stokes parameter determination using a single digital image Public/Granted day:2005-10-13
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