Invention Grant
- Patent Title: Enhancing imaging performance through the use of active illumination
- Patent Title (中): 通过使用有源照明提高成像性能
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Application No.: US12785334Application Date: 2010-05-21
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Publication No.: US08665361B1Publication Date: 2014-03-04
- Inventor: Prasanna Rangarajan , Vikrant R. Bhakta , Marc P. Christensen
- Applicant: Prasanna Rangarajan , Vikrant R. Bhakta , Marc P. Christensen
- Applicant Address: US TX Dallas
- Assignee: Southern Methodist University
- Current Assignee: Southern Methodist University
- Current Assignee Address: US TX Dallas
- Agency: Fish & Richardson P.C.
- Main IPC: H04N5/228
- IPC: H04N5/228 ; H04N5/222

Abstract:
A system for capturing super-resolved images includes a camera and a projector. The projector projects a spatially periodic illumination pattern onto the scene to be captured. The spatially periodic illumination patterns may include any pattern or combination of patterns that result in complex modulation. The objects of the scene modulate the spatially periodic illumination patterns, shifting high spatial frequencies into the passband of the camera's optical transfer function. The images may be demodulated, and the demodulated components may be combined with un-modulated components. The resulting image has characteristics of the high spatial frequencies previously beyond the optical passband of the camera.
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