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METHOD AND SYSTEM FOR ONLINE CALIBRATION OF A VIDEO SYSTEM

  • US 20110115912A1
  • Filed: 08/28/2008
  • Published: 05/19/2011
  • Est. Priority Date: 08/31/2007
  • Status: Abandoned Application
First Claim
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1. A method for online calibration of a vehicle video system using vanishing points evaluated from frames of a camera image taken by a vehicle camera comprising identified markings or edges on a road, comprising:

  • locating the vanishing points by finding or extrapolating at least at one left-hand or one right-hand side markings of the road to a point of intersection;

    calculating a long-term average vanishing point location using time-filtering methods from a sequence of camera images when only one side of the road markings is visible in one of the frames of the camera images at a time; and

    deducing a static yaw and a pitch angle of the camera using coordinates of the long-term average vanishing point location.

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