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Traffic monitoring based on non-imaging detection

  • US 8,963,092 B2
  • Filed: 12/16/2011
  • Issued: 02/24/2015
  • Est. Priority Date: 12/16/2011
  • Status: Active Grant
First Claim
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1. A traffic monitor, comprising:

  • a non-imaging, single radiation detector;

    a mask comprising a non-periodic arrangement of mask features including multiple radiation-transparent mask features; and

    a focusing element configured to focus radiation emanating from objects moving in a traffic pattern and affected by each of the multiple radiation-transparent mask features onto the non-imaging, single pixel radiation detector, wherein the non-imaging, single pixel radiation detector is configured to sense the radiation and to generate a time varying output signal based on sensed radiation.

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