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Device for measuring the number of pass persons and a management system employing same

  • US 5,926,518 A
  • Filed: 06/09/1997
  • Issued: 07/20/1999
  • Est. Priority Date: 08/02/1996
  • Status: Expired due to Term
First Claim
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1. A device for measuring the number of passing persons comprisinga plurality of camera means arranged in parallel with respect to their optical axes for taking an image in a measuring area to measure the number of persons,extracting means for extracting a person based on image data taken by said plurality of camera means,tracing means for tracing the person extracted by said extracting means, andcounting means for counting the number of persons passing a predetermined measuring position based on data provided by said tracing means,said device employing space coordinate data by correspondence between a plurality of images provided at the same timing by said plurality of camera means to extract the passing person.

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