System for optical acquisition of the road

US6067111A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Stefan Hahn · Ulm, DE
• Fridtjof Stein · Esslingen am Neckar, DE

Key dates

• Filing date: Apr 18, 1997
• Grant date: May 23, 2000
• Expiry date: Apr 18, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G05D1/0246
• WIPO field: Control
• WIPO sector: Instruments

Abstract

In a system for optical acquisition of the road and traffic in front of a road vehicle by electronic processing and evaluation of the image signals from a video camera mounted at the level of the top edge of the windshield of the vehicle, with the optical axis of the camera running at an angle to the road in a plane that is parallel to or approximately parallel to the vertical lengthwise central plane of the vehicle, the lens of the video camera is designed as a wide-angle lens and the slope angle that the optical axis of the lens forms with the plane of the road is less than half the total aperture angle of the lens, but corresponds approximately to half of its value.