JPH07121654A - Character recognizing/displaying device - Google Patents

Abstract

PURPOSE:To facilitate the correction of a rejective character that couldn't be recognized among the recognizing results of characters. CONSTITUTION:The recognizing results of characters are shown in a display frame 14 and a field image 18 used for recognition is also shown on a screen 13. Meanwhile the cursors 20 and 200 are shown at the part of a rejective character that couldn't be recognized and at the part of the image information corresponding to the rejective character respectively. Both cursors 20 and 200 are moved together in response to the correcting instruction applied from a keyboard. Thus a subject of correction is made clear and the correction of the rejective character is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character recognition display device, and more particularly to a character recognition display device for displaying the result of character recognition processing on an image-inputted handwritten character string.

[0002]

2. Description of the Related Art Generally, the result of optically reading a character is displayed on a display screen, and the display on the screen is used to visually check whether or not the handwritten character is correctly read. Since the check work takes a very long time, there is JP-A-4-216185 as a screen display method for improving this.

This is a method of displaying image information of a read character string and a character recognition result corresponding thereto on a screen. Then, it is disclosed that the visual check is facilitated by moving the cursor in the character recognition result portion on the screen and reversing and displaying the corresponding portion of the image information.

[0004]

By the way, in the reading error of the handwritten character, the reject character which was read as the image information but the character recognition processing was impossible, and "1".
There is a misread character that is erroneously recognized, such as recognizing "7". Of these, the reject character is generally displayed as "?" On the screen, but it is difficult to find that part on the screen, and there is a drawback that it takes a lot of time for correction work. there were.

The present invention has been made to solve the above drawbacks, and an object of the present invention is to provide a character recognition display device capable of easily correcting a rejected character.

[0006]

A character recognition display device according to the present invention is a character recognition display device for displaying a result of performing character recognition processing on an image-inputted handwritten character string. Character display means for displaying image information and a character recognition result corresponding to the image information, and a cursor for displaying a cursor on the unrecognizable reject character portion of the character recognition result and the corresponding image information portion. And a display means.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of a character recognition display device according to the present invention. In the figure, a character recognition display device according to an embodiment of the present invention includes an image input unit 1 for inputting a screen of a form as an electric signal, such as an image scanner, and format information encoding character positions and attributes on the form. A format information section 2 for holding a character and a character cutout section 3 for cutting out a character from an image input based on this format information.
And a character determination unit 5 for recognizing and coding the cut-out characters, and an image processing unit 7 for processing image data based on the designation of the format information unit 2.

The character recognition display device of the present embodiment is a display device based on the field image information 8 by the image processing unit 7, the code information 6 by the character determination unit 5 and the character position information 4 by the character cutout unit 4. Display screen control to 12, correction input from keyboard 10 and file device 1
It is configured to include a data correction unit 9 that performs processing relating to recording to 1.

The character recognition display device of this example having the above-mentioned configuration displays the result of character recognition and the image information on which the character recognition is based on the screen of the display device 12. Further, the apparatus of this example displays the cursor on the rejected character portion of the character recognition result displayed on the screen, which was unrecognizable, and the corresponding image information portion. Further, the apparatus of this example has a function of moving the cursor to another reject character portion and the corresponding image information portion in response to the correction input of the reject character from the keyboard 10.

Here, an example of screen display of the display device 12 will be described with reference to FIG. FIG. 2 shows a screen display example on the display device 12 in FIG.

First, FIG. 1A shows a state in which a character recognition result and image information which is the basis of the character recognition are displayed on the screen. That is, four display frames 14 to 17 are displayed on the screen 13. Then, “1? 345” is displayed in the display frame 14, “ABCDE” is displayed in the display frame 16, and “aiueo” is displayed in the display frame 17.

In addition to the above display frame, a field image 18 corresponding to a character string in the display frame 14 is enlarged and displayed on the screen 13. Field images (not shown) also correspond to character strings in other display frames, and each field image is represented by a line number and a field number.

That is, the field image 18 corresponding to the character string in the display frame 14 is the first field in the first row, and the field image corresponding to the character string in the display column 15 is the second field in the first row. It becomes a field. The field image corresponding to the character string in the display frame 16 is the second
The field image corresponding to the first field of the line and the character string in the display column 17 becomes the second field of the second line. Furthermore, each field image is displayed by enlarging or reducing the corresponding portion on the form that has been read, and the enlargement / reduction ratio is given from the format information unit 2 to the image processing unit 7. To do.

Here, "?" Of "1? 345" in the display frame 14 is a reject character, and the cursor 20 is displayed at the position shown in the figure to indicate that the part is a reject character. "?" Is highlighted in black and white. In addition to that, the cursor 2 is also moved to the corresponding character portion in the field image 18 corresponding to the character string in the display frame 14.
00 is displayed, and the black and white display is also reversed.

Here, a method of displaying the cursor at the reject character position as described above will be described. First, in the character cutout unit 3, a character pattern is cut out based on the format information of the format information unit 2, so the position of each character can be calculated. Then, for a character that is not correctly recognized by the character determination unit 5, a flag indicating that fact is added.

On the other hand, the image processing unit 7 generates, for each image, field image information 8 to which the position (line number and field number) of the field image and the enlargement / reduction ratio of the field image are added for the image data. This allows you to find the position of each character in the field image by multiplying the position of each character by the enlargement / reduction ratio, thus starting the image cursor (cursor in the field image) when the field image is displayed on the screen. The position XS and its end position XE can be calculated.

Next, in the data correction section 9, the cursor is displayed at the position of the character to which the flag is added, that is, the reject character (one of the rejected characters when there are a plurality of characters). At the same time, input the position of the cursor and the position information of the line / field, and display the field image based on the position of the field image and the enlargement / reduction ratio of the field image according to the field image information 8 and respond to the reject character. Display the image cursor in the part of the field image.

When the correction work for one reject character is completed by inputting on the keyboard 10, the cursor is moved to another reject character. Also in this case, the cursor is displayed at the position of the character to which the flag is added, and the image cursor is displayed at the portion in the field image corresponding to the reject character.

Incidentally, as shown in FIG.
When the cursor 20 is moved to the position of the character “C” in the display frame 16, the field image 19 corresponding to the character string in the display frame 16 is displayed on the screen, and the cursor 200 is displayed at the portion corresponding to the character “C”. Is displayed. In this way, the field image displayed on the screen changes in accordance with the movement of the cursor 20 in the display frame, and the cursor 200 in the field image also moves on the screen. This facilitates error correction and confirmation work.

Returning to FIG. 1, in such a configuration, the image signal of the form read by an image scanner (not shown) or the like is received and held by the image input unit 1. When the receiving operation is completed, the character cutout unit 3 responds to it.
Cuts out a character pattern based on the format information in the format information section 2, calculates the line position, field position, image cursor start position XS, and image cursor end position XE of the read character, and generates and stores the character position information 4. To do. The character determination unit 5 encodes the character recognition result and generates code data information 6. The image cursor start position XS
The image cursor end position XE is a relative position from the head position of the field image.

On the other hand, in the image processing section 7, the image data received by the image input section 1 is processed in accordance with the designation of the format information section 2, and field image information 8 in which a line number, a field number and a compression method are added for each image. To generate.

The character position information 4, the code data information 6 and the field image information 8 are input to the data correction section 9 and processed for the display screen of the display device 12, the input from the keyboard 10 and the record retention in the file device 11. Be seen.

Here, the processing procedure in the data correction unit 9 of FIG. 1 will be described with reference to FIG.

First, the data correction section inputs the code data information 6 and outputs the character recognition result on the screen of the display device 12 (step S1). If there is a reject character, the cursor is moved to the reject character position (step S2). If the reject character does not exist, the cursor is moved to the position designated by the keyboard 10.

When the cursor is moved to the reject character position, the position of the cursor and the position information of the line / field are input (step S3), and the position of the field image and the enlargement / reduction rate of the field image based on the field image information 8 are entered. Based on this, the field image 18 is output to the screen of the display device 12 (step S
4).

Then, based on the character position information 4, the cursor is displayed for the corresponding character in the field image (step S5).

If there is a rejected character, the operator corrects the character (step S).
6 → S7). This correction work is performed by inputting correct character data from the keyboard while looking at the screen of the display device 12. Corrected correct data is held in the file device 11.

The above-described processing is repeated until there is an instruction to end the processing from the keyboard 10 (step S8), but before the processing is repeated, the image on the screen of the display device 12 is erased (step S9). → S2 ...).

When there is an instruction to end the process from the keyboard 10, the process ends (steps S8 → S10). As a result, the same processing as above is performed for the character recognition result of the next form.

[0031]

As described above, according to the present invention, the result of character recognition and the image information on which the recognition is based are displayed on the screen, and the rejected character portion where the character cannot be recognized and the corresponding image information are displayed. By displaying the cursor in the area and moving the cursor according to the keyboard input, the burden of looking at the operator's screen can be reduced, and the work of correcting the rejected characters becomes easier and the time required for the correction is reduced. There is an effect that it can be reduced and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a character recognition display device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a screen display on the display device in FIG.

FIG. 3 is a flowchart showing a processing procedure in a data correction unit in FIG.

[Explanation of symbols]

 1 Image Input Section 2 Format Information Section 3 Character Cutout Section 5 Character Determination Section 7 Image Processing Section 9 Data Correction Section 10 Keyboard 11 File Device 12 Display Device

Claims (2)

[Claims] 1. A character recognition display device for displaying a result of performing character recognition processing on a handwritten character string input as an image, and displaying image information of the character string and a character recognition result corresponding thereto. Character recognition display having character display means and cursor display means for displaying a cursor on a portion of the unrecognizable reject character in the character recognition result and a portion of the image information corresponding thereto apparatus. 2. The method according to claim 1, further comprising cursor moving means for moving the cursor to another reject character portion and a corresponding image information portion in response to the correction input of the reject character. Character recognition display device described.