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Above-water monitoring of swimming pools

  • US 8,237,574 B2
  • Filed: 06/05/2009
  • Issued: 08/07/2012
  • Est. Priority Date: 06/05/2008
  • Status: Active Grant
First Claim
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1. A system for monitoring swimming pools for possible drowning victims, the system comprising:

  • a) a passive sensor, positioned above a surface of a pool, the sensor comprising means for receiving an image of the pool,b) means for digitizing images received from the sensor,c) a programmable computer connected to receive data from the digitizing means, the computer being programmed to analyze the images to determine whether the images indicate a presence of a drowning victim in the pool, andd) means for alerting an operator of the presence of a drowning victim,wherein the computer comprises means for compensating for refraction of images caused by water in the pool,wherein the computer is further programmed to compare sequential images to determine which portions, if any, of said images are artifacts caused by glint, and to remove such portions from said images.

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