Automatic vehicle identification (AVI) system employing planar laser illumination and imaging (PLIIM) based subsystems

  • US 6,959,869 B2
  • Filed: 05/31/2002
  • Issued: 11/01/2005
  • Est. Priority Date: 06/07/1999
  • Status: Expired due to Fees
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First Claim
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1. An automatic vehicle identification (AVI) system for installation along a roadway, comprising:

  • a pair of PLIIM-Based linear imaging subsystems mounted above said roadway in a spaced apart manner, and arranged for capturing digital linear images of both the front and rear license plates mounted on each moving vehicle traveling under said PLIIM-based linear imaging subsystems, and generating digital image data representative of each captured digital linear image; and

    an image processing subsystem for receiving and processing digital image data generated by said PLIIM-based linear imaging systems, so as to automatically read the alphanumeric strings on the front and/or rear license plates of each said moving vehicle, for subsequent comparison against vehicle registration information stored in a database for identification of moving vehicles traveling along said roadway.

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