Road profile prediction
US6807287B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 2000 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Aug 25, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for road profile prediction comprises digitization and storage means operable to digitize and store video image data relating to the road ahead of the vehicle and processor means operable to process the video image data to identify lane markings in the road, characterized in that the processor means includes estimator means operable to simultaneously analyze pairs of lines considered to constitute lane markings by a single recursive estimation procedure by finding the best fit to an expression involving left and right offsets, heading angle, lane curvature and horizon offset. A system embodying the invention has the purpose of overriding normal vehicle cruise control when another vehicle is detected in front of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.