Traffic line recognition device
US7346190B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2004 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Jun 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V20/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A traffic line recognition device includes: a traffic line region candidate extraction section that extracts a traffic line candidate, as a traffic line candidate, from a road image obtained by a TV camera installed on a vehicle; a two dimension/three dimension transform section that transforms two dimensional image coordinates of a pixel contained in the traffic line region candidate into three dimensional coordinates; a histogram production section that accumulates and projects the three dimensional coordinates onto a coordinate system in a direction crossing a road and produces a histogram in the direction crossing the road; and a traffic line judgment unit determines a traffic line based on that histogram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.