Localization and tracking of cryo-balloon during interventional fluoroscopy imaging
US8989463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2012 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Nov 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for the detection of a balloon catheter within a fluoroscopic image, including: removing noise from a fluoroscopic image; detecting edges of a balloon catheter in the fluoroscopic image, wherein the detected edges include subsets of connected edges; extracting an edge subset from the subsets of connected edges; fitting a model to the extracted edge subset; removing outliers of the extracted edge subset based on the fitting of the model; adding the extracted edge subset without the outlier to a data set; repeating the extracting, fitting, removing and adding steps for the remainder of the subsets of connected edges; and fitting the model to the data set, wherein the data set is indicative of the balloon catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.