Systems, methods and computer program products for determining document validity

• US 8,855,425 B2
• Filed: 07/22/2013
• Issued: 10/07/2014
• Est. Priority Date: 02/10/2009
• Status: Active Grant

• Current Assignee: Kofax Incorporated
• Original Assignee: Kofax Incorporated
• Inventors: Schmidtler, Mauritius A. R., Borrey, Roland G., Amtrup, Jan W., Thompson, Stephen Michael
• Primary Examiner(s): MARIAM, DANIEL G
• Application Number:
  US13/948,046
• Publication Number:
  US 20130308832A1
• Time in Patent Office: 442 Days
• Field of Search: None
• US Class Current: 382/182
• CPC Class Codes: G06V 30/416 Extracting the logical structure, e.g. chapters, sections or page numbers; Identifying elements of the document, e.g. authors
• CPC Class Codes: H04N 1/40 Picture signal circuits H04N1/387 takes precedence

Abstract

A method according to one embodiment includes performing optical character recognition (OCR) on an image of a first document; and at least one of: correcting OCR errors in the first document using at least one of textual information from a complementary document and predefined business rules; normalizing data from the complementary document using at least one of textual information from the first document and the predefined business rules; and normalizing data from the first document using at least one of textual information from the complementary document and the predefined business rules. Additional systems, methods and computer program products are also presented.

Claims

1. A method, comprising:

performing optical character recognition (OCR) on an image of the first document; and

identifying, in the image of the first document, one or more of;

textual information specific to a sender of the first document; and

data formatting specific to the sender at least one of;

correcting OCR errors in the first document using at least one of textual information from a complementary document and predefined business rules;

normalizing data from the complementary document using at least one of textual information from the first document and the predefined business rules; and

normalizing data from the first document using at least one of textual information from the complementary document and the predefined business rules.

2. The method as recited in claim 1, further comprising generating a list of hypotheses mapping the first document to a complementary document.

3. The method as recited in claim 2, wherein the hypotheses are generated using:

textual information from the first document,

textual information from the complementary document, and

predefined business rules.

4. The method as recited in claim 2, further comprising:

determining a validity of the first document based on the hypotheses; and

outputting an indication of the determined validity.

5. The method as recited in claim 1, further comprising:

receiving an image of the first document

extracting at least a partial address of a sender of the first document from the image based on the OCR;

comparing the extracted at least partial address with content in a database; and

extracting additional content from the image of the first document.

6. A computer program product comprising computer readable program code embodied on a non-transitory computer readable medium, the computer code configured to perform the method as recited in claim 1.

7. A system, comprising:

a processor; and

logic in and/or executable by the processor, the logic configured to perform the method as recited in claim 1.

8. A method, comprising at least one of:

correcting OCR errors in a first document, and normalizing data from the first document based at least in part on a complementary document, wherein the data are normalized prior to determining a validity of the first document;

normalizing data from the complementary document using at least one of textual information from the first document and predefined business rules; and

outputting an indication of the determined validity.

9. The method as recited in claim 8, further comprising determining the validity of the first document;

and outputting an indication of the determined validity.

10. The method as recited in claim 9, wherein the validity of the first document is determined by simultaneously considering:

textual information from the first document,

textual information from the complementary document, and

predefined business rules.

11. The method as recited in claim 8, further comprising:

receiving an image of the first document;

extracting at least a partial address of a sender of the first document from the image based on an OCR result;

comparing the extracted at least partial address with content in a database; and

extracting additional content from the image of the first document.

12. A computer program product comprising computer readable program code embodied on a non-transitory computer readable medium, the computer code configured to perform the method as recited in claim 8.

13. A system, comprising:

a processor; and

logic in and/or executable by the processor, the logic configured to perform the method as recited in claim 8.

14. A method, comprising:

performing optical character recognition (OCR) on a scanned image of a first document;

extracting an identifier from the first document;

identifying a complementary document associated with the first document using the identifier;

obtaining textual information of the complementary document;

generating a list of hypotheses mapping the first document to the complementary document using;

textual information from the first document,

the textual information from the complementary document, and

predefined business rules;

determining a validity of the first document based on the hypotheses; and

outputting an indication of the determined validity.

15. A computer program product comprising computer readable program code embodied on a non-transitory computer readable medium, the computer code configured to perform the method as recited in claim 14.

16. A system, comprising:

a processor; and

logic in and/or executable by the processor, the logic configured to perform the method as recited in claim 14.

17. A method, comprising:

extracting an identifier from an electronic first document;

using the identifier to identify a complementary document associated with the first document;

obtaining textual information of the complementary document;

determining a validity of a first document by simultaneously considering;

textual information from the first document,

the textual information from the complementary document, and

predefined business rules; and

outputting an indication of the determined validity.

18. A computer program product comprising computer readable program code embodied on a non-transitory computer readable medium, the computer code configured to perform the method as recited in claim 17.

19. A system, comprising:

a processor; and

logic in and/or executable by the processor, the logic configured to perform the method as recited in claim 17.