Method and system for lane departure warning
US8902053B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2012 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/167
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and a system for lane departure warning are provided. The method is as follows. An original image is segmented into a plurality of regional images. Next, characteristics of each regional image are analyzed, and accordingly non-lane line regions are removed from the regional images, so as to obtain a plurality of lane line candidates. Then, a plurality of lane lines are determined from the lane line candidates according to a location of each lane line candidate in the original image. Finally, the lane lines are distinguished into left lane lines and right lane lines, and a variation of an angle between each left lane line and a horizontal line and a variation of an angle between each right lane line and the horizontal line are analyzed, so as to judge whether a vehicle departs from a lane and send a lane departure warning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.