Vision-based vehicle navigation system and method
US8284997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Jun 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30248
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method of determining aircraft position on an aerodrome ground surface having a centerline disposed thereon is provided. A current image of the aerodrome ground surface is captured using a camera that has a known focal length and is disposed on a vehicle at a preset pitch angle. The current image includes the centerline, which extends to a vanishing point in the captured image. The slope and intercept of at least a portion of the centerline are computed. The vertical and horizontal positions of the vanishing point are computed. An estimate of the vehicle position on the ground surface is computed using the computed horizontal and vertical positions of the vanishing point, the known focal length, and the preset pitch angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.