Method and apparatus for superresolution imaging
First Claim
1. An apparatus for superresolution imaging of a remote target, the apparatus comprising:
- a receiver having a predefined receiving aperture for capturing an image of the target;
a plurality of transmitters spaced apart from one another and configured to concurrently emit signals directed toward the target with a phase difference therebetween, wherein the plurality of transmitters are further configured to emit overlapping beams onto the target such that interaction of the overlapping beams with the target produces a fringe pattern modulated at spatial frequencies beyond a resolution limit of the receiving aperture; and
a processor configured to process the image including at least a portion of the fringe pattern in order to produce a superresolved image including spatial frequency content beyond the resolution limit of the receiving aperture.
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Abstract
An apparatus and method are disclosed for providing superresolution imaging of a target, including remote targets. An apparatus for superresolution imaging may include a receiver having a predefined receiving aperture for capturing an image of the target. The apparatus may also include a plurality of transmitters spaced apart from one another and configured to concurrently emit signals with a phase difference therebetween. The plurality of transmitters may be further configured to emit overlapping beams onto the target to produce a fringe pattern modulated at spatial frequencies beyond the resolution limit of the receiving aperture. The apparatus may further include a processor configured to process the image including at least a portion of the fringe pattern in order to produce a superresolved image including spatial frequency content beyond the resolution limit of the receiving aperture. A corresponding method may also be provided.
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Citations
20 Claims
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1. An apparatus for superresolution imaging of a remote target, the apparatus comprising:
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a receiver having a predefined receiving aperture for capturing an image of the target; a plurality of transmitters spaced apart from one another and configured to concurrently emit signals directed toward the target with a phase difference therebetween, wherein the plurality of transmitters are further configured to emit overlapping beams onto the target such that interaction of the overlapping beams with the target produces a fringe pattern modulated at spatial frequencies beyond a resolution limit of the receiving aperture; and a processor configured to process the image including at least a portion of the fringe pattern in order to produce a superresolved image including spatial frequency content beyond the resolution limit of the receiving aperture. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for superresolution imaging of a remote target, the method comprising:
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concurrently emitting signals directed toward the target from a plurality of transmitters spaced apart from one another, wherein concurrently emitting signals comprises concurrently emitting signals from different transmitters that have a phase difference therebetween, and wherein concurrently emitting signals comprises emitting overlapping beams onto the target such that interaction of the overlapping beams with the target produces a fringe pattern modulated at spatial frequencies beyond a resolution limit of a receiving aperture; capturing an image of the target with a receiver have a predefined receiving aperture; and processing the image including at least a portion of the fringe pattern in order to produce a superresolved image including spatial frequency content beyond the resolution limit of the receiving aperture. - View Dependent Claims (8, 9, 10, 11)
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12. An apparatus for superresolution imaging of a remote target, the apparatus comprising:
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a telescope having a predefined receiving aperture for capturing an image of the target; an array of transmitters spaced apart from one another in first and second orthogonal directions, wherein different pairs of transmitters are configured to emit signals directed toward the target with a phase difference therebetween such that interaction of the overlapping beams with the target produces a fringe pattern upon the target that is modulated at spatial frequencies beyond a resolution limit of the receiving aperture; and a processor configured to process the images including at least a portion of the fringe patterns created by different pairs of transmitters in order to produce a superresolved image including spatial frequency content beyond the resolution limit of the receiving aperture. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification