Method for producing an X-ray image
First Claim
1. An x-ray imaging method, comprising:
- causing an x-ray source and an x-ray detector to move about an object to a plurality of different positions;
generating a two-dimensional x-ray image of the object at each of the plurality of different positions;
generating a plurality of optical images of the object using an optical camera during the movement of the x-ray source and the x-ray detector about the object;
determining a movement trajectory of the object relative to the x-ray detector based on the plurality of optical images; and
calculating a three-dimensional x-ray image of the object based on the plurality of two-dimensional x-ray images and the movement trajectory of the object relative to the x-ray detector.
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Accused Products
Abstract
The invention relates to a method for producing an x-ray image (1) of an object (2) by means of an x-ray device (3). An x-ray source (4) and an x-ray detector (5) are moved about an object (2) during an at least partial circulation (8, 9), and the x-ray beams (10) which are generated by the x-ray source (4) and pass through the object (2) are detected from multiple different directions by means of the x-ray detector (5). In the process, at least one optical camera (13, 14) captures the object (2) during the circulation, wherein an optical image (15, 17) is produced. The optical camera (13, 14) has a rigidly defined position relative to the x-ray source (4) and/or the x-ray detector (5). The optical image (15, 17) is then used to determine a movement trajectory of the object (2) relative to the x-ray source (4) and/or the x-ray detector (5).
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Citations
22 Claims
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1. An x-ray imaging method, comprising:
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causing an x-ray source and an x-ray detector to move about an object to a plurality of different positions; generating a two-dimensional x-ray image of the object at each of the plurality of different positions; generating a plurality of optical images of the object using an optical camera during the movement of the x-ray source and the x-ray detector about the object; determining a movement trajectory of the object relative to the x-ray detector based on the plurality of optical images; and calculating a three-dimensional x-ray image of the object based on the plurality of two-dimensional x-ray images and the movement trajectory of the object relative to the x-ray detector. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dental imaging system, comprising:
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an x-ray source constructed to emit x-ray beams towards an object; an x-ray detector constructed to detect x-ray beams, wherein the x-ray source and the x-ray detector are configured to move about the object and generate a plurality of two-dimensional x-ray images respectively corresponding to a plurality of different positions; an optical camera configured to generate a plurality of optical images of the object during the movement of the x-ray source and the x-ray detector about the object; and a computer configured to; determine a movement trajectory of the object relative to the x-ray detector based on the plurality of optical images of the object generated by the optical camera during the movement of the x-ray source and the x-ray detector about the object, and calculate a three-dimensional x-ray image of the object based on the plurality of two-dimensional x-ray images and the movement trajectory of the object relative to the x-ray detector. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A dental imaging apparatus, comprising:
a computer configured to; receive a plurality of two-dimensional x-ray images of an object generated during a movement of an x-ray source and an x-ray detector about the object, wherein the plurality of two-dimensional x-ray images respectively correspond to a plurality of different positions, receive a plurality of optical images from an optical camera of the object generated during the movement of the x-ray source and the x-ray detector about the object, determine a movement trajectory of the object relative to the x-ray detector based on the plurality of optical images, and calculate a three-dimensional x-ray image of the object based on the plurality of two-dimensional x-ray images and the movement trajectory of the object relative to the x-ray detector. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A non-transitory computer readable storage medium storing program instructions that when executed cause a computer to:
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receive a plurality of two-dimensional x-ray images of an object generated during a movement of an x-ray source and an x-ray detector about the object, wherein the plurality of two-dimensional x-ray images respectively correspond to a plurality of different positions, receive a plurality of optical images of the object generated during the movement of the x-ray source and the x-ray detector about the object, determine a movement trajectory of the object relative to the x-ray detector based on the plurality of optical images, and calculate a three-dimensional x-ray image of the object based on the plurality of two-dimensional x-ray images and the movement trajectory of the object relative to the x-ray detector.
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Specification