Systems and methods of registration for image-guided surgery
US11202680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2016 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30172
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method comprises segmenting first modality image data representing a model of one or more passageways within a patient; generating a first set of points based on the segmented image data; registering the first set of points to a second set of points obtained by a second modality by: determining a set of matches between the first and second sets of points, and discarding a first subset of the set of matches based on a heuristic to generate a modified set of matches by ignoring an associated set of matches between the first and second sets of points when computing a corrective motion for the second set of points—an ignored match is included in a second subset of the set of matches when computing a second corrective motion for the second set of points; and displaying a visual representation of the passageways based on the modified set of matches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.