Document identification device, document definition method and document identification method

• US 20030190094A1
• Filed: 11/27/2002
• Published: 10/09/2003
• Est. Priority Date: 11/29/2001
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Yokota, Kazuaki
• Granted Patent: US 7,099,508 B2
• Time in Patent Office: Days
• US Class Current: 382/305
• CPC Class Codes: G06V 30/10 Character recognition
• CPC Class Codes: G06V 30/1444 Selective acquisition, locating or processing of specific regions, e.g. highlighted text, fiducial marks or predetermined fields

Abstract

A plurality of document definition information for identifying documents, and format control information for recognizing a character recorded on a document corresponding to each of the plurality of document definition information are held beforehand, documents targeted for character recognition are identified as specific documents based on document images of the entered documents targeted for character recognition and the document definition information and, based on a result of the identification, character recognition is executed by using corresponding format control information. A document definition device adds a plane area of each of documents to be identified to the document definition. An OCR device checks the plane area on the document by using the document definition before check of a preprint accompanied by character recognition.

Claims

1. A document identification device, comprising:

document definition means including identification items to define a plane area; and

means for identifying documents in accordance with the document definition means.

3. The document identification device according to claim 1, wherein the check of the identification items defining the plane area is carried out by thinning the area every predetermined pixel unit.

5. The document identification device according to claim 1, wherein the document definition includes at least one of identification items of a sheet size, a corner cut area, a binding hole area, and a preprint area for each of a plurality of documents to be identified.

2. A document identification device, comprising:

means for creating document definition which includes a plurality of identification items including identification items necessary for character recognition and identification items to define a blank area; and

means for identifying documents in accordance with document definition which checks the identification items defining a plane area before check of the identification items necessary for character recognition.

4. The document identification device according to claim 2, wherein the check of the identification items defining the plane area is carried out by thinning the area every predetermined pixel unit.

6. The document identification device according to claim 2, wherein the document definition includes at least one of identification items of a sheet size, a corner cut area, a binding hole area, and a preprint area for each of a plurality of documents to be identified.

7. A document definition method, comprising the step of:

defining a plane area of each of a plurality of documents to be identified in document definition used in executing document identification in accordance with a plurality of set identification items for each of the plurality of documents to be identified.

8. A document definition method, comprising the steps of:

defining a plane area of each of a plurality of documents to be identified in document definition used in executing document identification in accordance with a plurality of identification items including identification items necessary for character recognition for each of the plurality of documents to be identified; and

executing check of the identification items defining the plane area before check of the identification items necessary for character recognition.

9. A document identification method for identifying documents in accordance with document definition of a plurality of identification items, comprising the step of:

identifying the documents in accordance with document definition including identification items to define a plane area of each of a plurality of documents to be identified.

10. The document identification device according to claim 9, wherein the check of the identification items defining the plane area is carried out by thinning the area every predetermined pixel unit.

11. A document identification method of identifying documents in accordance with a plurality of identification items including identification items necessary for character definition, comprising the steps of:

defining a plane area of each of the plurality of documents to be identified; and

checking identification items defining the plane area before check of the identification items necessary for character recognition.

12. The document identification device according to claim 11, wherein the check of the identification items defining the plane area is carried out by thinning the area every predetermined pixel unit.

13. A document identification device, comprising:

means for identifying documents in accordance with document definition based on a plurality of identification items; and

means for identifying documents in accordance with document definition including identification items defining a character existing area.

15. The document identification device according to claim 13, wherein the check of the identification items defining the character existing area is carried out by investigating a pixel value in a horizontal or vertical direction for character presence without processing any character recognition.

16. The document identification device according to claim 13, wherein the check of the identification items defining the blank area secured around the character existing area is carried out by determining a pixel value in a horizontal direction on at least an upper or lower side around the character existing area, or by determining a pixel value in a vertical direction on at least a left or right side around the character existing area, or by determining a pixel value on at least two sides of upper, lower, left and right sides around the character existing area.

17. The document identification device according to claim 13, wherein the document definition includes at least one of identification items of a sheet size, a corner cut area, a binding hole area, a plane area and a preprint area for each of a plurality of documents to be identified.

14. A document identification device, comprising:

means for identifying documents in accordance with document definition based on a plurality of identification items including identification items necessary for character recognition; and

means for identifying documents in accordance with document definition which checks the identification items defining a character existing area and a blank area secured around the character existing area before check of the identification items necessary for character recognition.

18. A document definition method, comprising the step of:

defining a character existing area of each of a plurality of documents to be identified, or a blank area around the character existing area in document definition used in executing document identification in accordance with a plurality of set identification items for each of the plurality of documents to be identified.

19. A document definition method, comprising the steps of:

defining a character existing area of each of a plurality of documents to be identified, or a blank area around the character existing area in document definition used in executing document identification in accordance with a plurality of identification items including identification items necessary for character recognition for each of the plurality of documents to be identified; and

executing check of the identification items defining the character existing area, or the identification items defining the character existing area and the blank area around the character existing area before check of the identification items necessary for character recognition.

20. A document identification method for identifying documents in accordance with document definition based on a plurality of identification items, comprising the step of:

identifying documents in accordance with document definition including identification items defining a character existing area, or a character existing area and a blank area around the character existing area for each of a plurality of documents to be identified.

21. A document identification method for identifying documents in accordance with a plurality of identification items including identification items necessary for character recognition, comprising the steps of:

defining a character existing area, or a character existing area or a blank area around the character existing area for each of a plurality of documents to be identified; and

checking the identification items defining the character existing area, or the character existing area and the blank area around the character existing area before check of the identification items necessary for character recognition.