System and method for detecting and tracking a curvilinear object in a three-dimensional space
US9449241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2012 |
| Grant date | Sep 20, 2016 |
| Priority date | — |
| Expiry date | Dec 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/47
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for detecting and tracking a curvilinear object in a three-dimensional space includes an image acquisition system including a video camera arranged to acquire a video image of the curvilinear object and output a corresponding video signal, the video image comprising a plurality n of image frames each at a respective time ti, where i=1, 2, . . . , n; and a data processing system adapted to communicate with the image acquisition system to receive the video signal. The data processing system is configured to determine a position, orientation and shape of the curvilinear object in the three-dimensional space at each time ti by forming a computational model of the curvilinear object at each time ti such that a projection of the computation model of the curvilinear object at each time ti onto a corresponding frame of the plurality of image frames of the video image matches a curvilinear image in the frame to a predetermined accuracy to thereby detect and track the curvilinear object from time ti to time tn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.