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Address reader, sorting machine such as a mail thing and character string recognition method

  • US 6,470,091 B2
  • Filed: 04/02/2001
  • Issued: 10/22/2002
  • Est. Priority Date: 02/10/1998
  • Status: Expired due to Fees
First Claim
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1. An address reader method of recognizing a receiver address on a surface of mail, said address reader method comprising:

  • inputting an image of the surface of mail;

    segmenting said image into at least one character string candidate;

    extracting at least one address area candidate based on said at least one character string candidate;

    selecting one of said at least one address area candidate as a receiver address area of the mail by analyzing each of said at least one address area candidate based on predetermined position information indicating a usual position of a receiver address area, character direction information indicating a character direction of a character string appropriate for said predetermined position information, and key character string information including a character string having plural characters most likely to exist in a receiver address; and

    recognizing characters in character strings of the selected address area candidate as a receiver address.

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