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Moving body measuring device and an image processing device for measuring traffic flows

  • US 5,313,295 A
  • Filed: 03/17/1992
  • Issued: 05/17/1994
  • Est. Priority Date: 03/19/1991
  • Status: Expired due to Term
First Claim
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1. A moving body measuring device, having an image taking unit for taking an image of a moving body, a controlling means for controlling the image taking unit, and a frame memory for storing image data from the image taking unit, the device comprising:

  • existence domain setting means for setting an existence domain extended along a distance of the moving path of the moving body based on the image data;

    sampling means for sampling data showing the moving body based on the image data in the existence domain; and

    timewise data accumulating means for timewisely and continuously accumulating, at a constant period, sampled data showing the moving body indicating a timewise change of the moving body moving along at least a portion of the distance in the existence domain to produce a two-dimensional locus of the moving body in a two-dimensional plane of the distance that the moving body travels versus the traveling time.

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