Document recognition device

• US 5,257,328 A
• Filed: 04/01/1992
• Issued: 10/26/1993
• Est. Priority Date: 04/04/1991
• Status: Expired due to Fees

• Current Assignee: Fuji Xerox Company Limited (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Xerox Company Limited (Fujifilm Holdings Corporation)
• Inventors: Shimizu, Noboru
• Primary Examiner(s): Mancuso, Joseph
• Application Number:
  US07/861,600
• Time in Patent Office: 573 Days
• Field of Search: 382/61, 382/39, 382/59, 382/37, 382/57, 382/14, 395/21, 395/151
• US Class Current: 382/311
• CPC Class Codes: G06V 10/987 with the intervention of an operator

Abstract

A document recognition device capable of correcting results obtained by recognizing a character image. The document recognition device includes a character recognizing unit for recognizing a character image, a correction data base in which correction information on mis-recognized characters which were targets to be corrected by an operator has been registered, an automatic correction unit for correcting results recognized by the character recognizing unit by use of the correction data base, an operator'"'"'s correction unit by which the operator corrects results corrected by the automatic correction unit, and a correction data base updating unit for registering, in the correction data base, correction information obtained from the results recognized by the character recognizing unit and the results corrected by the operator'"'"'s correction unit.

Claims

1. A document recognition device comprising:

character recognizing means for recognizing a character image;

a correction data base in which correction information on mis-recognized characters which were targets to be corrected by an operator has been registered;

automatic correction means for using said correction data base to correct characters mis-recognized by said character recognizing means;

operator correction means by which the operator corrects characters uncorrected by said automatic correction means; and

correction data base updating means for registering, in said correction data base, correction information obtained from the characters recognized by said character recognizing means and the characters corrected by said operator correction means.

2. The character recognition device according to claim 1, wherein the correction information registered in said correction data base includes information on the number of times of occurrence and the number of times of correction for recognized results.

3. The character recognition device according to claim 2, wherein said correction information further includes information on correction characters substituted for the recognized results and the number of times thereof.

4. The character recognition device according to claim 3, wherein said correction data base updating means registers an unregistered correction character in said correction data base when the number of already registered correction characters is less than a predetermined value.

5. The character recognition device according to claim 1, wherein said automatic correction means performs an automatic correcting operation in accordance with an automatic correction flag erected based on the correction information registered in said correction data base.

6. The character recognition device according to claim 1, further comprising memory means for storing therein the results recognized by said character recognizing means.

7. The character recognition device according to claim 6, wherein said memory means further stores therein the results corrected by said automatic correction means and the results corrected by said operator'"'"'s correction means.

8. The character recognition device according to claim 7, further comprising display means for displaying the results registered in said memory means.