Character recognition device, method of generating document file, and storage medium

Patent metadata

Field	Value
Publication number	US-11146705-B2
Application number	US-202016901441-A
Country	US
Kind code	B2
Filing date	Jun 15, 2020
Priority date	Jun 17, 2019
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A character recognition device is configured to convert characters on a scanned image obtained by reading a document into digital data. The character recognition device includes control circuitry. The control circuitry is configured to perform character recognition processing on the scanned image; generate data in which candidate characters or character strings of a character or character string recognized by the character recognition processing are associated with recognition degrees representing probabilities of the candidate characters or character strings; display a first candidate having a highest recognition degree among the candidate characters or character strings; and generate a document file in a format in which another candidate, other than the first candidate, of the candidate characters or character strings is displayed simultaneously with the first candidate, in association with the first candidate, and in a form different from a form of the first candidate.

First claim

The invention claimed is:

1. A character recognition device configured to convert characters on a scanned image obtained by reading a document into digital data, the character recognition device comprising:
control circuitry configured to:
perform character recognition processing on the scanned image;
generate data in which candidate characters or character strings of a character or character string recognized by the character recognition processing are associated with recognition degrees representing probabilities of the candidate characters or character strings;
display a first candidate having a highest recognition degree among the candidate characters or character strings; and
generate a document file in a format in which another candidate, other than the first candidate, of the candidate characters or character strings is displayed simultaneously with the first candidate, in association with the first candidate, and in a form different from a form of the first candidate.

2. The character recognition device according to claim 1 ,
wherein the control circuitry is configured to generate the document file in a format in which the first candidate is displayed in a first region and said another candidate is displayed in a second region having a smaller display area than the first region.

3. The character recognition device according to claim 2 ,
wherein the control circuitry is configured to generate the document file in a format in which the scanned image in which the character or character string recognized by the character recognition processing is drawn is displayed in the second region.

4. The character recognition device according to claim 3 ,
wherein the control circuitry is configured to generate the document file in the format in which the scanned image in which the character or character string recognized by the character recognition processing is drawn is displayed in the second region in response to the highest recognition degree being below a threshold.

5. The character recognition device according to claim 1 ,
wherein the control circuitry is configured to generate the document file in an editable format.

6. The character recognition device according to claim 1 ,
wherein the control circuitry is configured to generate a character deleted image by removing the candidate characters or the character strings from the digital data.

7. The character recognition device according to claim 6 ,
wherein the control circuitry is configured to superimpose text characters corresponding with the candidate characters or the character strings on the deleted image.

8. The character recognition device according to claim 1 ,
wherein the control circuitry is configured to generate the document file in Open XML file format.

9. The character recognition device according to claim 1 ,
wherein the control circuitry is configured to generate the document file such that the first candidate is linked with the another candidate via a link line.

10. A method for generating a document file in a character recognition device configured to convert characters on a scanned image obtained by reading a document into digital data, the method comprising:
performing character recognition processing on the scanned image;
generating data in which candidate characters or character strings of a character or character string recognized by the character recognition processing are associated with recognition degrees representing probabilities of the candidate characters or character strings;
displaying a first candidate having a highest recognition degree among the candidate characters or character strings; and
generating the document file in a format in which another candidate, other than the first candidate, of the candidate characters or character strings is displayed simultaneously with the first candidate, in association with the first candidate, and in a form different from a form of the first candidate.

11. The method according to claim 10 ,
wherein the generating includes generating the document file in a format in which the first candidate is displayed in a first region and said another candidate is displayed in a second region having a smaller display area than the first region.

12. The method according to claim 11 ,
wherein the generating includes generating the document file in a format in which the scanned image in which the character or character string recognized by the character recognition processing is drawn is displayed in the second region.

13. The method according to claim 10 ,
wherein the generating includes generating the document file in an editable format.

14. A non-transitory computer-readable storage medium storing program code for causing a computer to execute a method for generating a document file in a character recognition device, the method comprising:
performing character recognition processing on a scanned image;
generating data in which candidate characters or character strings of a character or character string recognized by the character recognition processing are associated with recognition degrees representing probabilities of the candidate characters or character strings;
displaying a first candidate having a highest recognition degree among the candidate characters or character strings; and
generating document the file in a format in which another candidate, other than the first candidate, of the candidate characters or character strings is displayed simultaneously with the first candidate, in association with the first candidate, and in a form different from a form of the first candidate.

15. The storage medium according to claim 14 ,
wherein the generating includes generating the document file in a format in which the first candidate is displayed in a first region and said another candidate is displayed in a second region having a smaller display area than the first region.

16. The storage medium according to claim 15 ,
wherein the generating includes generating the document file in a format in which the scanned image in which the character or character string recognized by the character recognition processing is drawn is displayed in the second region.

17. The storage medium according to claim 14 ,
wherein the generating includes generating the document file in an editable format.

Assignees

• Saitoh Takayuki
• Ricoh Co Ltd

Inventors

• Saitoh Takayuki

Classifications

• H04N1/00824 Primary

  for displaying or indicating, e.g. a condition or state (details of displaying or indicating means H04N1/00405) · CPC title

• H04N1/00806 Primary

  According to type of the original, e.g. colour paper or transparency, or reading a plurality of different types of original · CPC title

• G06V30/413

  Classification of content, e.g. text, photographs or tables · CPC title

• G06V30/127

  with the intervention of an operator · CPC title

• G06V30/10

  Character recognition · CPC title