Tracking system calibration by reconciling inertial data with computed acceleration of a tracked object in the three-dimensional coordinate system
US8761434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2009 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Dec 18, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
To calibrate an positional sensor, a plurality of image locations and image sizes of a tracked object are received as the tracked object is moved through a rich motion path. Inertial data is received from the tracked object as the tracked object is moved through the rich motion path. Each of the plurality of image locations is converted to a three-dimensional coordinate system of the positional sensor based on the corresponding image sizes and a field of view of the positional sensor. An acceleration of the tracked object is computed in the three-dimensional coordinate system of the positional sensor. The inertial data is reconciled with the computed acceleration, calibrating the positional sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.