Single-lens, single-sensor 3-D imaging device with a central aperture for obtaining camera position
First Claim
1. A device for three-dimensional (3-D) imaging comprising:
- a lens;
a mask;
a central aperture located along an optical axis for passing a non-defocused image of a target object;
at least two defocusing apertures located off of the optical axis for passing at least two defocused images of the target object, wherein the central aperture and the at least two defocusing apertures are located in the mask;
a single sensor operable for capturing electromagnetic radiation transmitted from the target object through the lens and the central aperture in the form of a non-defocused image of the target object and for capturing electromagnetic radiation transmitted from the target object through the lens and the at least two defocusing apertures in the form of at least two defocused images of the target object, the sensor further operable to output the non-defocused image and the at least two defocused images as sensor information; and
a processor communicatively connected with the sensor that processes the sensor information, determines depth information by measuring a distance between the at least two defocused images, and produces a 3-D image of the object.
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Accused Products
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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Citations
19 Claims
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1. A device for three-dimensional (3-D) imaging comprising:
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a lens; a mask; a central aperture located along an optical axis for passing a non-defocused image of a target object; at least two defocusing apertures located off of the optical axis for passing at least two defocused images of the target object, wherein the central aperture and the at least two defocusing apertures are located in the mask; a single sensor operable for capturing electromagnetic radiation transmitted from the target object through the lens and the central aperture in the form of a non-defocused image of the target object and for capturing electromagnetic radiation transmitted from the target object through the lens and the at least two defocusing apertures in the form of at least two defocused images of the target object, the sensor further operable to output the non-defocused image and the at least two defocused images as sensor information; and a processor communicatively connected with the sensor that processes the sensor information, determines depth information by measuring a distance between the at least two defocused images, and produces a 3-D image of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for three-dimensional (3-D) imaging comprising acts of:
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capturing, with a single sensor, (a) electromagnetic radiation transmitted off of an object and through a lens and a central aperture located along an optical axis in the form of a non-defocused image of the object and (b) electromagnetic radiation transmitted off of the object and through the lens and at least two defocusing apertures located off of the optical axis in the form of at least two defocused images of the object, wherein the central aperture and the at least two defocusing apertures are located in a same mask; and processing information from the sensor to produce a 3-D image representative of the object, wherein processing information includes determining depth information by measuring a distance between the at least two defocused images. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification