Systems and methods for identifying traffic control devices and testing the retroreflectivity of the same
US9767371B2 · kind B2 · utility
6Cited by
8References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Mar 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F2009/3055
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for identifying traffic control devices from images, and systems and methods for assessing the retro reflectivity of traffic control devices. The identification of traffic control devices can be accomplished using a lighting-dependent statistical color model. The identification of traffic control devices can be accomplished using an active contour or active polygon method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.