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Processing means for use in an optical character recognition system

  • US 4,918,740 A
  • Filed: 07/21/1989
  • Issued: 04/17/1990
  • Est. Priority Date: 10/01/1985
  • Status: Expired due to Term
First Claim
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1. The method of analyzing character information consisting of pixel data and subline information of unknown characters to determine the character type of each of said unknown characters, said method comprising the steps of:

  • fetching a plurality of character information segments, each representing a character and including subline information consisting of the location of that character'"'"'s ascender line, lowercase line, base line, and descender line with respect to the pixels forming that character;

    for a selected one of said character information segments, determining if said subline information is accurate based upon comparison with the subline information of a selected one of said character information segments;

    providing accurate subline information by resetting said subline information of said selected one of said character information segments, with respect to the pixels forming that character, if inaccurate, without altering the subline information of character information segments corresponding to adjacent characters; and

    using said accurate subline information to determine the character type of said selected one of said character information segments.

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