Accurate and rapid mapping of points from ultrasound images to tracking systems
US9607381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Nov 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/428
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for mapping coordinates between images and tracking systems includes providing a calibration tool having a fixed geometric shape. The calibration tool includes first sensors associated with an imaging mode and second sensors associated with a tracking mode. The first and second sensors are distributed and mounted at known locations on the fixed geometric shape. The first sensors are located in a field of view of an imaging system to determine a position of the calibration tool in image space. The second sensors are tracked to determine a same position of the calibration tool in tracking space. The image space and the tracking space are mapped in a common coordinate system based on artifacts of the calibration tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.