Deformable 2D-3D registration
View Patent ↗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.
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.
2. The computer implemented method of claim 1 , wherein the vector field maps differences between the simulated two-dimensional image of the volume of the object of interest and the two-dimensional image of the object of interest.
3. The computer implemented method of claim 1 , wherein finding the volume deformation comprises:
a two-dimensional to three-dimensional back projection mapping the vector field to the deformation profile with respect to perspective distortion; and
generating a simulated three-dimensional deformation.
4. The computer implemented method of claim 3 , further comprising a deformation for generating the simulated two-dimensional image of the volume of the object of interest from the simulated three-dimensional deformation.
5. A non-transitory computer readable medium embodying instructions executable by a processor to perform a 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.
6. The computer readable medium of claim 5 , wherein the vector field maps differences between the simulated two-dimensional image of the volume of the object of interest and the two-dimensional image of the object of interest.
7. The computer readable medium of claim 5 , wherein finding the volume deformation comprises:
a two-dimensional to three-dimensional back projection mapping the vector field to the deformation profile with respect to perspective distortion; and
generating a simulated three-dimensional deformation.
8. The computer readable medium of claim 7 , further comprising a deformation for generating the simulated two-dimensional image of the volume of the object of interest from the simulated three-dimensional deformation.
9. A method for deformable registration comprising:
capturing a volumetric data set representing a patent by a first imaging modality;
capturing a two-dimensional image representing the patient by a second imaging modality;
determining a vector field from a two-dimensional matching of a simulated two-dimensional image of the volumetric data set and the two-dimensional image;
providing a deformation profile comprising control points representing movement of the patient 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 volumetric data set, and
wherein the simulated two-dimensional image updated by the control point configuration is displayed.
10. The computer implemented method of claim 9 , wherein the vector field maps differences between the simulated two-dimensional image of the volumetric data set and the two-dimensional image.
11. The computer implemented method of claim 9 , wherein finding the volume deformation comprises:
a two-dimensional to three-dimensional back projection mapping the vector field to the deformation profile with respect to perspective distortion; and
generating a simulated three-dimensional deformation.
12. The computer implemented method of claim 11 , further comprising a deformation for generating the simulated two-dimensional image of the volumetric data set from the simulated three-dimensional deformation.