JPS6160185A - Character recognizer - Google Patents

Abstract

PURPOSE:To attain an input of correction even though the reading of the deleted characters are unknown by providing a display device which displays directly the reading pattern of those characters which cannot be recognized and deleted and a tablet device which converts the handwritten characters into the character data. CONSTITUTION:A reading pat 1 converts a group of characters to be recognized on a form into the character data and outputs them to a line buffer 2. the character data stored temporarily in the buffer 2 are separated for each character area by a separation part 3 and then compared with the reference character data stored in a dictionary part 5 through a recognizing pat 4. The reading pattern is displayed at a display part 7 for characters that have no correspondence with the character data in the part 5 and cannot be recognized owing to the soil of the form, the swell-out of adjacent characters, the distortions, the breakdown, the miswriting, etc. An operator looks at the reading pattern to make a fair copy on the board surface of a tablet input part 8. the fair copy is turned into the character data at the part 8 and sent to an on-line recognizing part 9 for recognition of characters.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention particularly relates to a character recognition device for recognizing a sentence containing Chinese characters recorded on a form.

[Technical Background of the Invention] Conventionally, 4F4 character recognition devices have been used to read a group of characters to be recognized recorded on a form, convert them into character data, and recognize them. When there are characters that are distorted or otherwise unrecognizable (hereinafter referred to as rejected characters), a system has been developed that directly displays the reading pattern of the rejected characters on a display device such as a CRT display device. There is.

Rejection characters in such a character recognition device are corrected by an operator determining the reading pattern of the displayed reject character and calling up the corresponding character using an input device such as a keyboard.

[Problems with the Background Art] However, when a rejected character is corrected using a keyboard device as described above, if the rejected character is a kanji and the operator does not know how to read the displayed character pattern, had to look up how to read it using a dictionary. Also, even if you know how to read the letters, in order to recall the corresponding letters,
The user had to perform a cumbersome selection operation.

If the characters in Rejiek 1~ are alphabetic letters, numbers, katakana, or flat name Hodomaro characters, it is easy to call up the characters because a dedicated key is provided, but if the characters in Rejiek 1~ are kanji, it is easy to call up the characters. In this case, due to the above-mentioned circumstances, the flow of recognition is interrupted until the character to be input is selected, resulting in a problem in that processing efficiency is significantly reduced.

[Object of the invention] The present invention was made in view of the above-mentioned conventional circumstances, and
In particular, the object of the present invention is to provide a character recognition device in which even if a reject character is present in recognition of a sentence containing Chinese characters, the operation for correcting the reject character is extremely easy and the processing efficiency does not decrease.

[Summary of the invention] ? In other words, the character recognition device of the present invention is configured to read a group of characters to be recognized recorded on a form, convert them into character data, and recognize them. It has a display device for displaying characters, and a tablet device for converting characters handwritten on a board into character data, and the tablet device converts the reading pattern of the unrecognizable characters displayed on the display device to the tablet surface of the tablet 1 to the device. The present invention is characterized in that the unrecognizable characters are re-inputted by handwriting them.

[Embodiments of the Invention] The details of the present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

In the figure, 1 is a reading unit that converts characters to be recognized recorded on a form into character data for each predetermined area using a photoelectric conversion element, etc., and 2 is a reading unit that converts the character data obtained in the reading unit 1 into character data on a form. 3 is a line buffer that temporarily stores data in units of one page or one line; 3 is a detection unit that cuts out data character by character from the line buffer 2 according to predetermined cutting rules;
Reference numeral 4 refers to a recognition unit that compares character data for each character outputted from the inspection unit 3 with reference character data stored in advance in the dictionary unit 5 and performs recognition according to predetermined recognition rules. Reference numeral 6 refers to a control unit that controls each unit. Sections 7 and 7 indicate a display section that directly displays the reading pattern of a character that cannot be recognized by the recognition section 4 when that character is found.

The character recognition device of this embodiment includes a tablet input unit 8 that converts characters handwritten on the board into character data, and an online recognition unit 9 that performs stroke analysis and recognizes the character data output from the tablet input unit 8, for example. It is equipped with

Next, the operation of the character recognition device of this embodiment will be explained.

When the character recognition device of this embodiment recognizes a sentence containing Chinese characters handwritten on a form, the reading unit 1 first converts a group of characters to be recognized on the form into character data, and the line buffer 2 Output to. Next, the inspection section 3 cuts out the character data provisionally stored in the line buffer 2 for each character area, and the recognition section 4 uses the cut out character data based on the standard character data stored in the dictionary section 5. recognize it.

If recognition is possible, the recognition result is output by the control unit 6 to the host computer or other data processing device.

If a reject character is present here, the control section 6 causes the display section 7 to directly display the reading pattern W of the reject character as shown in FIG.

In FIG. 2, ml and m2 indicate stains on the form and protrusion of adjacent characters, which are causes of unrecognizability. Possible causes of unrecognizability include distortions, crookedness, misprints, or damage to forms in unrecognized characters in surplus records, but normally the reading pattern W cannot be recognized by the operator even if the device cannot recognize it. The accuracy is sufficient to make judgments.

In the character recognition device of the present embodiment, when a diect character is displayed in this way, the operator must
The reading pattern displayed on the screen is judged, and the corresponding character W' is entered on the board 8a of the tablet input section 8 as shown in FIG.
Make a clean copy. Then, the neatly written character W' is input as character data to the online recognition unit 9, and the online recognition unit 9 performs stroke analysis, etc. to recognize the character W' in 4 lines, and sends the recognition results to the control unit 6. Output to. Here, the online recognition unit 9 only needs to ensure a recognition speed comparable to the writing speed of the operator.

However, with conventional character recognition devices, even if the operator can identify the reading pattern of rejected characters, it is difficult for the operator to input corrections if he or she does not know how to read them.
In this embodiment, the Rejiek i character is written on the board 8a of the tablet input unit 8 and re-entered for recognition.
Even if an operator does not know how to read a reject character, there is no need for him to take any trouble when inputting corrections.

In the embodiment described above, the online recognition unit 9 recognizes characters input from the tablet input unit 8, but the present invention is not limited to this. It may be configured such that the character data obtained from the document is input to the recognition section 4 which recognizes the character data obtained from the form and is recognized.

Note that even when correcting kanji displayed on a display device in a word processor, etc., if a tablet input unit is provided as in the present invention so that handwritten characters can be recognized, the reading of the kanji to be corrected can be changed. Even if you do not understand the information, you can easily make correction inputs.

[Effects of the Invention] As explained above, the character recognition device of the present invention includes a display device that directly displays the reading pattern of rejected characters and a tablet device that converts characters handwritten on the board into character data. , it is configured to re-enter the reject characters by handwriting the reading pattern of reject characters displayed on the display device or on the board of the tablet device, so even if you do not know how to read the reject characters, you can easily input the reject characters. Correction input can be made.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the display mode of eject characters, and FIG. 3 is a plan view showing the external appearance of the tablet input section in an embodiment of the present invention. It is.

Claims (3)

[Claims] (1) In a character recognition device configured to read a group of characters to be recognized recorded on a form, convert them into character data, and recognize them, a display device that directly displays the reading pattern of unrecognizable characters, and a a tablet device that converts handwritten characters into character data, and a reading pattern of the unrecognizable characters displayed on the display device is hand-written on the board of the tablet device to re-input the unrecognizable characters. A character recognition device characterized in that it is configured to perform. (2) The character recognition device according to claim 1, wherein characters handwritten on the board of the tablet device are recognized online. (3) The character recognition device according to claim 1 or 2, wherein the character group to be recognized is a sentence containing Chinese characters.