Image processing system which processes an image captured by an imaging device through a lens having a focus which is adjusted to a point beyond the glass
US7208723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2004 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Aug 12, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S1/0833
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An image processing system that detects foreign matter on a glass window of a vehicle and objects in front of the vehicle. The system includes an image processor, a first lamp, and a second lamp. On/off control of the first and second lamps is controlled by the image processor. Light from the first lamp is reflected from the outer sauce of the glass when raindrops are present on the outside of the glass. Light from the second lamp is reflected from the inner surface of the glass when moisture is present on the inside of the glass. Any reflected light goes through a lens and an optical filter with prescribed optical characteristics to an image device. The lens is focused to a point beyond the window so that the image processor an also detect objects in front of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.