Image-based system and methods for vehicle guidance and navigation
US8320616B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Oct 14, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of estimating position and orientation of a vehicle using image data is provided. The method includes capturing an image of a region external to the vehicle using a camera mounted to the vehicle, and identifying in the image a set of feature points of the region. The method further includes subsequently capturing another image of the region from a different orientation of the camera, and identifying in the image the same set of feature points. A pose estimation of the vehicle is generated based upon the identified set of feature points and corresponding to the region. Each of the steps are repeated at with respect to a different region at least once so as to generate at least one succeeding pose estimation of the vehicle. The pose estimations are then propagated over a time interval by chaining the pose estimation and each succeeding pose estimation one with another according to a sequence in which each was generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.