Method and system for inspecting a vehicle-mounted camera
US6785403B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2000 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Mar 6, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical axis direction, a distance measurement accuracy and so on are efficiently performed for quality assurance of a vehicle-mounted camera in cooperation of an image processing unit and a vehicle-mounted navigation control unit. In a vehicle monitoring system for imaging view ahead of the vehicle with the camera (2a, 2b) installed in the vehicle body and for recognizing a running condition with the image processing unit (20), the image processing unit measures an optical axis direction and a distance measurement accuracy to determine whether the camera quality is appropriate or not for quality assurance of the vehicle-mounted camera. The determined result is displayed on a monitor (52) of the vehicle mounted navigation control unit (5) to recommend adjustment of the camera. When failure is determined in the pass/fail determination of the optical axis direction, an attachment member having a shape, the optical axis direction by which is included in the correct range in the reference pattern of the recognized image, is selected from a variety of the attachment members prepared in advance, and replacement of the attachment member with the selected attachment member is recommende…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.