U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Vision method of detecting lane boundaries and obstacles

Patent 4970653 Issued on November 13, 1990. Estimated Expiration Date: Icon_subject April 6, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Visually guided vehicle
Patent #: 4566032
Issued on: 01/21/1986
Inventor: Hirooka ,   et al.

Automatic running work vehicle
Patent #: 4573547
Issued on: 03/04/1986
Inventor: Yoshimura ,   et al.

System and method for calculating movement direction and position of an unmanned vehicle
Patent #: 4819169
Issued on: 04/04/1989
Inventor: Saitoh ,   et al.

Method and apparatus for detecting traveling position and/or direction of an unmanned vehicle
Patent #: 4847774
Issued on: 07/11/1989
Inventor: Tomikawa ,   et al.

Apparatus for guiding movement of an unmanned moving body
Patent #: 4862047
Issued on: 08/29/1989
Inventor: Suzuki ,   et al.

Boundary detecting method and apparatus for automatic working vehicle Patent #: 4868752
Issued on: 09/19/1989
Inventor: Fujii ,   et al.

Inventor

Assignee

Application

No. 334033 filed on 04/06/1989

US Classes:

701/301, Collision avoidance348/116, Direction finding or location determination348/118, Land vehicle701/28Having image processing

Examiners

Primary: Chin, Gary

Attorney, Agent or Firm

International Class

G06F 015/50

Abstract

An image processing method operates on an image from a ccd camera viewing a roadway scene in front of a vehicle to detect lane markers and determine the relationship of the vehicle to the lane. Obstacles in the lane near the vehicle are detected and a warning is given to the driver. The method uses template matching techniques or a Hough algorithm to detect the lane markers or road edges.

Other References

  • Dickmanns, E. D. and Zapp, A., "A Curvature-Based Scheme for Improving Road Vehicle Guidance by Computer Vision," Proc. SPIE on Mobile Robots, vol. 727, Oct. 1986, pp. 161-16
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