Kalman tracking of color objects
US6917692B1 · kind B1 · utility
30Cited by
20References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1999 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | May 25, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semi-automatic method of tracking color objects in a video image sequence starts by separating the objects on the basis of color and identifying an object of interest to track. A Kalman predictive algotithm in used to predict the position of the centroid of the object of interest through successive frames. From the predicted position the actual centroid is measured and the position and velocity are smoothed using a Kalman filter. Error recovery is provided in the event the centroid falls outside the field of view or falls into an area of a different color, or in the event the tracking algorithm breaks down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.