IMAGE READING DEVICE, METHOD OF READING IMAGE, AND RECORDING MEDIUM STORING CONTROL PROGRAM FOR CONTROLLING IMAGE READING DEVICE

• US 20110149351A1
• Filed: 12/07/2010
• Published: 06/23/2011
• Est. Priority Date: 12/18/2009
• Status: Abandoned Application

• Current Assignee: Konica Minolta Business Technologies Incorporated (Konica Minolta Inc.)
• Original Assignee: Konica Minolta Business Technologies Incorporated (Konica Minolta Inc.)
• Inventors: Murakami, Hiroshi, Suzuki, Hiroyuki, WAKUI, Katsuaki, Takahama, Hidekazu, Ohhata, Akira, Hashimoto, Hideyuki
• Application Number:
  US12/962,285
• Publication Number:
  US 20110149351A1
• Time in Patent Office: Days
• US Class Current: 358/463
• CPC Class Codes: G06V 10/98 Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns
• CPC Class Codes: H04N 1/4097 Removing errors due external factors, e.g. dust, scratches

Abstract

An image reading device includes a transport unit for transporting a document, a scanner for scanning image data of the document transported by the transport unit, and a controller for controlling the image reading device. The controller extracts a plurality of one-character areas included in the image data, recognizes character data of each of the extracted one-character areas, determines presence or absence of line noise based on a result of recognition of each of the one-character areas, and displays presence of the line noise on an operation panel when it is determined that there is the line noise.

Claims

1. An image reading device comprising:

a transport unit for transporting a document;

a scanner for scanning image data of the document transported by said transport unit; and

a controller for controlling said image reading device,

said controller extracting a plurality of one-character areas included in said image data, recognizing character data of each of extracted said one-character areas, determining presence or absence of line noise based on a result of recognition of each of said one-character areas, and displaying presence of said line noise on an operation panel when it is determined that there is said line noise.

2. The image reading device according to claim 1, wherein

said controller determines that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas where recognition failed in a transport direction of the document transported by said transport unit.

3. The image reading device according to claim 1, wherein

said controller determines that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas having character data recognized as specific character data in a transport direction of the document transported by said transport unit.

4. The image reading device according to claim 1, wherein

said controller determines that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas where recognition failed or one-character areas having character data recognized as specific character data in a transport direction of the document transported by said transport unit.

5. The image reading device according to claim 4, wherein

said controller adjusts a recognition level of the character data of each of extracted said one-character areas in accordance with an instruction, and adjusts a value of said prescribed number in accordance with adjusted said recognition level of the character data.

6. The image reading device according to claim 1, wherein

said controller identifies and displays a position of said line noise in said image data on said operation panel.

7. A method of reading an image performed in an image reading device, comprising the steps of:

transporting a document;

scanning image data of the transported document;

extracting a plurality of one-character areas included in said image data;

recognizing character data of each of extracted said one-character areas;

determining presence or absence of line noise based on a result of recognition of each of said one-character areas; and

displaying presence of said line noise on an operation panel when it is determined that there is said line noise.

8. The method of reading an image according to claim 7, wherein

in said step of determining presence or absence of line noise, it is determined that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas where recognition failed in a transport direction of the transported document.

9. The method of reading an image according to claim 7, wherein

in said step of determining presence or absence of line noise, it is determined that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas having character data recognized as specific character data in a transport direction of the transported document.

10. The method of reading an image according to claim 7, wherein

in said step of determining presence or absence of line noise, it is determined that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas where recognition failed or one-character areas having character data recognized as specific character data in a transport direction of the transported document.

11. The method of reading an image according to claim 10, further comprising the steps of:

adjusting a recognition level of the character data of each of extracted said one-character areas in accordance with an instruction; and

adjusting a value of said prescribed number in accordance with adjusted said recognition level of the character data.

12. The method of reading an image according to claim 7, wherein

in said displaying step, a position of said line noise in said image data is identified and displayed on said operation panel.

13. A recording medium storing a control program to be executed by a computer of an image reading device, said control program causing the computer of said image reading device to perform a process comprising the steps of:

transporting a document;

scanning image data of the transported document;

extracting a plurality of one-character areas included in said image data;

recognizing character data of each of extracted said one-character areas;

determining presence or absence of line noise based on a result of recognition of each of said one-character areas; and

displaying presence of said line noise on an operation panel when it is determined that there is said line noise.

14. The recording medium according to claim 13, wherein

in said step of determining presence or absence of line noise, it is determined that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas where recognition failed in a transport direction of the transported document.

15. The recording medium according to claim 13, wherein

in said step of determining presence or absence of line noise, it is determined that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas having character data recognized as specific character data in a transport direction of the transported document.

16. The recording medium according to claim 13, wherein

in said step of determining presence or absence of line noise, it is determined that there is said line noise when it is determined that there are at least a prescribed number of successive one-character areas where recognition failed or one-character areas having character data recognized as specific character data in a transport direction of the transported document.

17. The recording medium according to claim 16, wherein

said control program causes the computer of said image reading device to perform a process further comprising the steps of:

adjusting a recognition level of the character data of each of extracted said one-character areas in accordance with an instruction; and

adjusting a value of said prescribed number in accordance with adjusted said recognition level of the character data.

18. The recording medium according to claim 13, wherein

in said displaying step, a position of said line noise in said image data is identified and displayed on said operation panel.