Systems and methods of pose estimation and calibration of perspective imaging system in image guided surgery
US11399895B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2017 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Sep 13, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30204
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method performed by a computing system comprises receiving, from a fluoroscopic imager, having a first set of parameters, first fluoroscopic image data of a first fiducial marker within a surgical coordinate space. The method comprises receiving a configuration of the first fiducial marker within the surgical coordinate space. The method comprises determining a second set of parameters of the fluoroscopic imager in the surgical coordinate space based on the first fluoroscopic image data and the configuration of the first fiducial marker. In some embodiments, determining the second set of parameters comprises developing a calibrated model of the fiducial marker in the surgical coordinate space from the first fluoroscopic image data and the configuration of the first fiducial marker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.