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ELECTRONIC TRAFFIC MONITOR

  • US 20080095403A1
  • Filed: 10/24/2006
  • Published: 04/24/2008
  • Est. Priority Date: 10/24/2006
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • receiving a video image of a road surface imaged and of a vehicle moving across the road surface;

    determining a tracking point of a vehicle image, of the vehicle, captured in at least two frames of the video image;

    deriving a formula descriptive of a curve containing the tracking points; and

    upon determining the vehicle image is a measuring vehicle, deriving a scaling map comprising a scaling factor associating a vehicle image dimension, in the direction of travel, to a real-world vehicle dimension at a point collocated with the vehicle image in one frame of the video image.

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