Method for detecting rain on a windscreen
US7860275B2 · kind B2 · utility
37Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2007 |
| Grant date | Dec 28, 2010 |
| Priority date | — |
| Expiry date | Jul 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30248
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting raindrops on a windscreen, which uses a camera, which is fitted inside the vehicle opposite the windscreen and which is focused at infinite. The method comprises steps of acquiring images by a camera through the windscreen, camera preferably focused at infinite, retrieving the contours of the spots present on the acquired images, and realizing the histogram of the widths of contours of the spots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.