Interactive verification of OCRed characters

• US 6,351,574 B1
• Filed: 12/11/1998
• Issued: 02/26/2002
• Est. Priority Date: 12/11/1998
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Yair, Eyal, Shevach, Ronen
• Primary Examiner(s): Couso, Jose L.
• Assistant Examiner(s): Do, Anh Hong
• Application Number:
  US09/210,327
• Time in Patent Office: 1,173 Days
• Field of Search: 382/321, 382/311, 382/312
• US Class Current: 382/321
• CPC Class Codes: G06V 10/987 with the intervention of an operator

Abstract

This invention discloses a key-in method including a manual keying in phase, and an automatic accuracy enhancement phase, wherein at least one of the manual phase, the automatic phase and the interaction therebetween is dependent, at least one dataflow point, on data generated previous to said dataflow point.

Claims

1. A method for supplying machine readable text at low key-in cost, the method comprising:

using key-in stations to improve accuracy of machine-generated Machine readable text, including dispatching machine-generated Machine readable text to various key-in stations using stored key-in station characteristic parameters to reduce key-in cost; and

learning the key-in stations'"'"' characteristics and tuning said key-in station characteristic parameters, on-line, thereby to adjust for variation in working conditions.

2. A method according to claim 1 wherein said variation in working conditions comprise changes in at least one of the following:

human operators operating the key-in stations;

key-in methods,

time of day, and

working conditions.

3. A method according to claim 1 wherein the machine-readable text comprises ASCII output.

4. A system for supplying machine readable text at low key-in cost, the system comprising:

a dispatcher operative to dispatch machine-generated machine readable text to various key-in stations using stored key-in station characteristic parameters to reduce key-in cost; and

a key-in station monitor operative to learn the key-in stations'"'"' characteristics and to tune said key-in station characteristic parameters, on-line, thereby to adjust for variation in working conditions.

5. A system according to claim 4 wherein said variation in working conditions comprise changes in at least one of the following:

human operators operating the key-in stations;

key-in methods,

time of day, and

working conditions.

6. A system according to claim 4 wherein the machine readable text comprises ASCII.

7. A computer program product for supplying machine readable text using key-in stations to improve accuracy of machine-generated text,

the program having computer readable program instructions embodied therein,

which instructions cause a computer

to dispatch the machine-generated text to various key-in stations using stored key-in station characteristic parameters to reduce key-in cost, and

to learn the key-in stations'"'"' characteristics and tune said key-in station characteristic parameters on-line, thereby to adjust for variation in working conditions.