Methods, systems, and computer readable media for real-time 2D/3D deformable registration using metric learning
US9495746B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2014 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Mar 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/428
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and computer readable media for real-time 2D/3D deformable registration using metric learning are disclosed. According to one aspect, a method for real-time 2D/3D deformable registration using metric learning includes creating a catalog of simulated 2D projection images based on a reference 3D image and a shape space of 3D deformations, where each entry in the catalog is created by: applying to the reference 3D image a set of deformation parameters from the shape space of deformations; simulating a 2D projection of the result; associating the simulated 2D projection image with the deformation parameters used to create the simulated 2D projection image; and storing the simulated 2D projection image and associated deformation parameters in the catalog. The method also includes receiving a 2D image, and, in response to receiving the 2D image: calculating a value of distance between the received 2D image and a simulated 2D projection image for each of the simulated 2D projection images in the catalog; using the calculated distances to calculate weighting factors to be applied to the deformation parameters of each of the simulated 2D projection images in the catalog; a…
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