DEFORMABLE 2D-3D REGISTRATION
First Claim
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1. A computer implemented method for deformable registration comprising:
- determining a vector field from a two-dimensional matching of a simulated two-dimensional image of a volume of an object of interest and a two-dimensional image of the object of interest;
providing a deformation profile comprising control points representing movement of the object of interest over time; and
finding a volume deformation that maps to a state of the two-dimensional image, wherein the deformation is parameterized by the vector field and the control points of the deformation profile to update a control point configuration of the simulated two-dimensional image of the volume of the object of interest.
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Abstract
A method for deformable registration including determining a vector field from a two-dimensional matching of a volume of an object of interest and a two-dimensional image of the object of interest, providing a deformation profile, and finding a volume deformation that maps to a state of the two-dimensional image, wherein the deformation is parameterized by the vector field and control points of the deformation profile to find a control point configuration of the volume deformation.
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Citations
14 Claims
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1. A computer implemented method for deformable registration comprising:
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determining a vector field from a two-dimensional matching of a simulated two-dimensional image of a volume of an object of interest and a two-dimensional image of the object of interest; providing a deformation profile comprising control points representing movement of the object of interest over time; and finding a volume deformation that maps to a state of the two-dimensional image, wherein the deformation is parameterized by the vector field and the control points of the deformation profile to update a control point configuration of the simulated two-dimensional image of the volume of the object of interest. - View Dependent Claims (2, 3, 4)
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5. A system for deformable two-dimensional to three-dimensional registration comprising:
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a database for storing volumetric data of an object of interest; and a processor for executing instructions of a plurality of modules processing the volumetric data, the modules comprising; a volume deformation module generating a Digitally Reconstructed Radiograph (DRR) of the image from a deformed three-dimensional volume of the object of interest; a two-dimensional matching module for performing a non-rigid registration in two-dimensions between the DDR and an actual two-dimensional image of the object of interest and generating a two-dimensional vector field; and a two-dimensional to three-dimensional back projection module, connected to the two-dimensional matching module for receiving the two-dimensional vector field, mapping from the two-dimensional vector field as a control point grid to the deformed three-dimensional volume as a three-dimensional grid with respect to a perspective distortion. - View Dependent Claims (6, 7, 8)
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10. The system of claim 9, wherein the texture includes a plurality of texture elements, each texture element storing a control point translation in respective channels.
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11. A computer readable medium embodying instructions executable by a processor to perform a method for deformable registration comprising:
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determining a vector field from a two-dimensional matching of a simulated two-dimensional image of a volume of an object of interest and a two-dimensional image of the object of interest; providing a deformation profile comprising control points representing movement of the object of interest over time; and finding a volume deformation that maps to a state of the two-dimensional image, wherein the deformation is parameterized by the vector field and the control points of the deformation profile to update a control point configuration of the simulated two-dimensional image of the volume of the object of interest. - View Dependent Claims (12, 13, 14)
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Specification