JPS6121582A - Optical character reader - Google Patents

Abstract

PURPOSE:To correct exactly unreadable characters in an optical character reader by displaying in corresponding a video pattern of a read-out character to the read-out result of characters so as to display them when unreadable characters occur. CONSTITUTION:A controller 6 receives read-out position information of a document 1 as a character detection signal from a scanner controlling device 4, and stores a video signal in a memory 5. A discriminating device 7 reads out the video pattern from the memory 5 to discriminate characters and outputs the result to the controller 6. When the discrimination result includes unreadable characters, the controller 6 reads out the video pattern from the memory 5, combines it with the discriminated result, and displays the combination on a display screen 8. The controller 6 combines the discriminated result with the video pattern by a scan position signal received from the controlling device 4, and sets both of them to be matched. An operator discriminates characters from the video pattern displayed on the display screen 8 and the discriminated result, keys in correction data through a keyboard 9 and corrects unreadable characters.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for correcting unreadable characters in an optical character reading device.

The present invention relates to an optical character reading device, and more particularly to a method for correcting unreadable characters.

[Background of the invention]

Conventional optical character readers display a multi-character video pattern and only display unreadable characters, e.g.
Some things are brightly displayed and corrected. In this case,
Since we do not know how each pattern was read, it is difficult to correct it, especially if there is a cutting error.

Unfortunately, if only the reading results are to be displayed, they must be corrected in conjunction with the form, which complicates the operation.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a device that can accurately correct unreadable characters in an optical character reading device.

[Overview of the invention]

According to the present invention, when an unreadable character occurs, the video pattern of the read character and the result of reading the character are displayed in correspondence.

For example, as shown in FIG. 2, the video pattern is displayed in correspondence with the video pattern. In addition,
The correspondence between the video pattern and the reading result can be changed, for example, by placing them in the lower row and upper row, or in the left and right rows.

Furthermore, it is also possible to correlate and display only a portion of the characters without associating all the read characters.

By displaying in this way, the operator can easily correct any mistakes in cutting out characters.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram of an optical character reading device according to the present invention.

The control device 6 provides a reading position signal to the scanner control device 4. A scanner controller 4 provides scanning information to the flying and spot scanners 2. The flying spot scanner 2 scans the read characters on the form 1, and the reflected light is received by the photoprinter 3. The electrical signal from the photomultiplier 3 is sent to the scanner control device 4. The scanner control device 4 sends a character detection signal, a scanning position signal, and a video turn to the control device 6. Upon receiving the character detection signal, the control device 6 stores the video signal in the memory 5 and activates the discrimination device 7.

The discrimination device 7 reads out the video pattern stored in the memory 5 and discriminates the characters. The determination result is sent to control device B. The control device 6 sends the determination result and the video pattern stored in the memory 5 to the display 8.

The display device 8 displays the video pattern and the determination result in correspondence. The control device 6 also receives data keyed in from the keyboard 9.

Next, the operation will be explained.

The control device 6 supplies reading position information of the form 1 to the scanner control device 4, thereby causing the flying spot scanner 2 to scan characters at arbitrary positions. Also, the control device 6
is activated by the bidet control device 6 upon receiving a character detection signal from the scanner control device 4, reads out a video pattern from the memory 5, and performs character discrimination. The determination result is output to the control device 6. If there is an unreadable character in the discrimination result, the control device 6 reads the video pattern from the memory 5 and displays this video pattern and the discrimination result on the combination display 8. The control device 6 combines the discrimination results and the video patterns based on the scanning position signal received from the scanner control device 4 so that a plurality of video patterns and the discrimination results can be associated with each other on the screen of the display 8 . The operator discriminates the characters based on the video pattern displayed on the display 8 and the discrimination results.
Key in the correction data from the keyboard 9. The control device 6 uses the keyed-in data as determination result data.

FIG. 2 is a diagram showing an example of display on the display 8. When there is an unreadable character, the video pattern 12 and the reading result 13 are displayed in correspondence, and the video pattern 12 and the reading result 13 are displayed in correspondence with each other.
It can be seen that the unreadable character is 12".

〔Effect of the invention〕

As described above, according to the present invention, it is possible to accurately correct unreadable characters in an optical character reading device.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an optical character reading device for explaining an embodiment of the present invention, and FIG. 2 is a diagram showing a display example of the present invention.

Claims (1)

[Claims] 1. In an optical character reading device that reads characters written on a form, a photoelectric conversion device outputs a scanning position signal and a video signal by optically scanning the characters, and a video signal from the photoelectric conversion device is input. a display device that displays a discrimination signal from the discrimination device and a video signal from the photoelectric conversion device; a character input device; and a control device that controls the transmission and reception of signals between the devices. If an unreadable character occurs during character reading, the control device displays the video signal and the discrimination signal in correspondence with each other on the display device based on the scanning position signal from the photoelectric conversion device, and inputs the unreadable character. An optical character reading device characterized in that input is performed using the device.