Marker identification and processing in x-ray images
US8363919B2 · kind B2 · utility
9Cited by
41References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 25, 2009 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jun 7, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/245
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A mechanism for rapidly detecting and localizing external markers placed on a patient in projection images. Embodiments of the invention allow the markers to be detected even in the presence of dense surrounding anatomy and extensive patient motion. Once the positions of the marker points on the projection images are extracted, the marker points can be used to perform marker-based patient motion detection. Embodiments of the invention can also be used outside of motion correction, such as for scanner calibration, automatic cephalometric measurements, and quality control assessment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.