Traffic violation detection at an intersection employing a virtual violation line

  • US 6,950,789 B2
  • Filed: 09/12/2003
  • Issued: 09/27/2005
  • Est. Priority Date: 11/23/1998
  • Status: Expired due to Term
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First Claim
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1. A system for detecting a violation of a traffic signal at an intersection comprising the steps of:

  • a virtual violation line interface for receiving from a user data defining a virtual violation line that corresponds to a location at said intersection that if crossed by a vehicle entering said intersection during a red light phase of said traffic signal, is indicative of a violation of said traffic signal by said vehicle;

    a storage device for storing a representation of said intersection and said virtual violation line;

    at least one camera for capturing at least one image of a vehicle at said intersection;

    a processing unit operative to;

    analyze said at least one image to identify a position of said vehicle with resperct to said virtual violation line, compare said position of said vehicle to said virtual violation line, and generate an indication of a violation in the event said processing unit determines that said position of said vehicle is beyond said virtual violation line and that said vehicle has traveled into said intersection during said red light phase of said traffic signal.

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