发明授权
US08823848B2 Microgrid imaging polarimeters with frequency domain reconstruction
有权
具有频域重建的Microgrid成像偏振计
- 专利标题: Microgrid imaging polarimeters with frequency domain reconstruction
- 专利标题(中): 具有频域重建的Microgrid成像偏振计
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申请号: US13377518申请日: 2010-06-11
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公开(公告)号: US08823848B2公开(公告)日: 2014-09-02
- 发明人: Russell A. Chipman , Stanley Pau , J. Scott Tyo , Bradley M. Ratliff
- 申请人: Russell A. Chipman , Stanley Pau , J. Scott Tyo , Bradley M. Ratliff
- 申请人地址: US AZ Tucson
- 专利权人: The Arizona Board of Regents on behalf of the University of Arizona
- 当前专利权人: The Arizona Board of Regents on behalf of the University of Arizona
- 当前专利权人地址: US AZ Tucson
- 代理机构: Klarquist Sparkman, LLP
- 国际申请: PCT/US2010/038412 WO 20100611
- 国际公布: WO2010/144866 WO 20101216
- 主分类号: H04N5/335
- IPC分类号: H04N5/335 ; H04N5/228 ; H04N5/225 ; G02B5/30
摘要:
A polarization camera includes a microlement polarizer that is situated in proximity to a focal plane array. The microlement polarizer is selectively scanned with respect to an optical image direct to the focal plane array, and an image processor stores a set of images associated with the scanning. Based on the stored images, a polarization image can be produced and displayed. A periodic microelement polarizer modulates the individual images of the set, and these images can be processed by filtering in the spatial frequency domain to isolate contributions associated with one or a combination of Stokes parameters. After filtering, Stokes parameter based images can be obtained by demodulating and inverse Fourier transforming the filtered frequency domain data.
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