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Method for detecting single postal covers and postal covers stuck together in a mail sorting machine

  • US 7,446,278 B2
  • Filed: 06/12/2003
  • Issued: 11/04/2008
  • Est. Priority Date: 06/26/2002
  • Status: Expired due to Fees
First Claim
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1. A method of detecting single postal items and multiple overlapping postal items in a postal sorting installation, said method comprising a step of providing a height measurement of the postal items (6) and detecting a variation of the measured height indicative of multiple overlapping postal items, said method being characterized in that said step of providing a height measurement comprises:

  • acquiring an image (5) of each postal item viewed from in front into an address automatic recognition process,applying to each image (5) an outline-extraction process (10) to extract an outline of each postal item; and

    analyzing said outline to provide said height measurement of said postal items.

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