Single-lens, single-sensor 3-D imaging device with a central aperture for obtaining camera position
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United States of America Patent
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Dec 31, 2013
Grant Date -
Nov 13, 2008
app pub date -
Apr 23, 2008
filing date -
Apr 23, 2007
priority date (Note) -
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Abstract
A device and method for three-dimensional (3-D) imaging using a defocusing technique is disclosed. The device comprises a lens, a central aperture located along an optical axis for projecting an entire image of a target object, at least one defocusing aperture located off of the optical axis, a sensor operable for capturing electromagnetic radiation transmitted from an object through the lens and the central aperture and the at least one defocusing aperture, and a processor communicatively connected with the sensor for processing the sensor information and producing a 3-D image of the object. Different optical filters can be used for the central aperture and the defocusing apertures respectively, whereby a background image produced by the central aperture can be easily distinguished from defocused images produced by the defocusing apertures.
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