Tracking objects in three-dimensional space using calibrated visual cameras and depth cameras
US10699421B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2017 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Jul 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The motion of objects within a scene may be detected and tracked using digital (e.g., visual and depth) cameras aligned with fields of view that overlap at least in part. Objects may be identified within visual images captured from the scene using a tracking algorithm and correlated to point clouds or other depth models generated based on depth images captured from the scene. Once visual aspects (e.g., colors or other features) of objects are correlated to the point clouds, shapes and/or positions of the objects may be determined and used to further train the tracking algorithms to recognize the objects in subsequently captured frames. Moreover, a Kalman filter or other motion modeling technique may be used to enhance the prediction of a location of an object within subsequently captured frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.