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Real-time recursive filter to identify weather events using traffic CCTV video

  • US 8,983,224 B1
  • Filed: 08/27/2012
  • Issued: 03/17/2015
  • Est. Priority Date: 08/27/2012
  • Status: Active Grant
First Claim
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1. A processor for executing the following steps:

  • receiving images of a scene comprising successive frames from a camera, each frame including an array of pixels;

    filtering intensities of the array of pixels in a respective frame by using a Bessel Filter to compute a constant value for the respective frame, andsumming a predetermined number of respective frames from the camera to determine rapid motion in the scene,wherein the rapid motion in the scene is a weather-related event, including motion of a rain fall, a hail storm, a snow storm, or a tornado, which is provided as notification to a remote station, andthe filtering is implemented using the following recursive relationship;

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