System and method for detecting obstacles in a road
US5680313A · kind A · utility
70Cited by
22References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | May 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0268
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method detects obstacles in a road being traveled by a vehicle. Edge points of the road are calculated from known road data. A series of scan lines are made of the road ahead of the vehicle to obtain an image plane of the road ahead of the vehicle. The calculated edge points are projected into the image plane to determine the left and right edge points of each scan line in the image plane. Each scan line is processed to locate any discontinuities between the left and right edge points, where the discontinuities correspond to objects in the road.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.