×

Method and apparatus for detecting vehicle distance

  • US 6,795,014 B2
  • Filed: 05/19/2003
  • Issued: 09/21/2004
  • Est. Priority Date: 10/28/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method for a vehicle equipped with a radar for detecting distance to a preceding vehicle, comprising:

  • receiving a signal of a road image from a camera;

    extracting lane markers from the road image;

    adjusting a scanning angle of a radar based on the extracted lane markers, wherein said adjusting a scanning angle comprises;

    calculating a height within said image at which a horizontal distance between the extracted lane markers is a predetermined distance;

    calculating a slope of the road based on the calculated height;

    adjusting a scanning angle of the radar based on the calculated slope of the road; and

    calculating a distance to a preceding vehicle using reflected waves of a radar beam scanned at the adjusted scanning angle.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×