JPH0652541B2 - Character recognition device with writing instruction function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The character recognition device is provided with a category designating means and a writing style display section for displaying the writing style of the characters of the category designated by the category designating means.

[Industrial application field]

The present invention relates to a character recognition device, and more particularly, to a character recognition device having a writing instruction function for increasing a recognition rate in operation by teaching "correct writing" or "writing that can be correctly read" when erroneous reading occurs. Is.

[Conventional technology]

A conventional character recognition device simply recognizes a character pattern input from a character input unit, converts it into a character code, converts the character code into a standard character dot pattern, and displays it on a display.

[Problems that the invention is trying to solve]

The conventional character recognition device as described above has a drawback that the user cannot understand "how to write and read" when the recognition result is not correct.

The present invention was created in view of such a point, and when the recognition result of the handwritten input character is different from the intended one, the correct answer rate is displayed by displaying "how to write and read". It is an object of the present invention to provide a character recognition device having a writing instruction function that can be improved.

[Means for solving problems]

FIG. 1 is a principle diagram of the present invention. A character recognition device having a writing instruction function of the present invention includes an input unit that can input handwritten characters, a recognition unit that recognizes a category of handwritten characters input from the input unit, and an input handwritten character obtained by the recognition unit. In a character recognition device comprising a display for displaying characters in a category, when the character identification information and a predetermined command are input from the input means, the character identified by the character identification information is designated on the display screen. A character processing means for displaying at the position is provided so that when the other predetermined command is input from the input means, the writing method of the character displayed at the specified position on the display screen can be known also in the stroke order. It is characterized in that a writing style display processing means for displaying on a display is provided.

[Action]

The input means is, for example, a tablet. When a sheet is placed on the tablet and a character is handwritten on the sheet with a stylus pen, the coordinate point series of the character and pen up / down information are input to the recognition unit. The recognition unit collates the contents of the recognition dictionary with the input handwritten character information, recognizes the character type (category) of the input handwritten character, and displays the character of the recognition category on the display.

When the character specifying information and the predetermined command are input from the input device, the character processing means displays the character specified by the character specifying information at a specified position (specified by a cursor or the like) on the display screen.

When another predetermined command is input from the input device, the writing display processing means makes it possible for the writing manner of the character displayed at the designated position (designated by the cursor or the like) on the display screen to also know the stroke order. Is displayed on the display.

〔Example〕

FIG. 2 is a diagram showing an embodiment of the present invention, FIG. 3 is a diagram showing an example of a tablet layout, FIG. 4 is a diagram showing a standard handwritten character data format, and FIG. 5 is a display format of writing. 1
It is a figure which shows an example. In the figure, 6 is a control unit, 7 is a Kana-Kanji conversion unit, 8 is a Kana-Kanji conversion dictionary, 9 is a recognition dictionary, 1
Reference numeral 0 is a standard pattern dictionary, 11 is a display control section, 12 is a kana keyboard section, 13 is a writing area, and 14 is a control command area. Also, is the recognition result information,
Indicates a cursor movement area, indicates kanji code information, indicates a writing command signal, indicates writing target character information, and indicates writing information.

As shown in FIG. 3, the tablet 1 has a kana keyboard section 12, a writing area 13 and a control command area 14. The kana keyboard unit 12 has a plurality of kana character keys. A paper is placed on the writing area 13 and characters are handwritten on it. The control command area 14 has various control command keys such as a recognition command key, a kana-kanji conversion command key, a writing command key, and a cursor key. The control unit 6 includes a recognition unit 2, a kana-Kanji conversion unit 7, and a display control unit 1.
1 is controlled. The kana-kanji conversion unit 7 extracts a kanji character string corresponding to the kana character string sent from the control unit 6 from the Kana-Kanji conversion dictionary 8 and sends it to the display control unit 11 as Kanji code information. The kana-kanji conversion dictionary 8 stores kana character strings for a plurality of words and phrases and kanji character strings corresponding to each kana character string. The recognition dictionary 9 stores standard character patterns, modified character patterns, and the like for each of a plurality of character categories. The standard pattern dictionary 10 has a fourth
A plurality of standard handwritten character data as shown in the figure are stored. The standard handwritten character data includes the character code, the stroke number K, the number of coordinate points for each of the first stroke to the Kth stroke, and the first stroke to the Kth stroke.
Each stroke is composed of coordinate values of coordinate points of the stroke. The writing display unit 5 displays the writing target character information (5) sent from the display control unit 11.
The standard handwritten character data corresponding to the character designated by is extracted from the standard pattern dictionary 10, the stroke order information is added to the extracted standard handwritten character data, and this is sent to the display control unit 11 as writing information. The display control unit 11 displays a character pattern corresponding to the recognition result information from the recognition unit 2 on the display 3, a function of moving the cursor on the display screen according to the cursor movement information, and a Kanji pattern corresponding to the Kanji code information. The function of displaying on the display 3, the function of sending the character code of the character at the cursor position as the writing target character information to the writing display unit 5 when the writing command signal is sent, and the character pattern and stroke order information specified by the writing information Display 3
It has a function to display on.

The handwritten character pattern input from the tablet 1 is sent to the recognition unit 2 via the control unit 6. The recognition unit 2 collates with the recognition dictionary 9 and sends the recognition result information to the display control unit 11. In the display control unit 11, the recognition result information (for example, J
The dot pattern is displayed on the display 3 based on the IS code). Here, if the operator notices an error in the recognition result, the operator operates the tablet 1 to generate cursor movement information from the control unit 6, and moves the cursor to the misread character on the display 3. Further, the tablet 1 is operated to input the "yomi" of the kanji originally desired to be input and sent to the kana-kanji conversion unit 7. The kana-kanji conversion unit 7 reads the kanji sent.
By collating with the Tokana-Kanji conversion dictionary 8, the Kanji code information of the target Kanji is sent to the display control unit 11 and displayed at the cursor position on the display screen.

Here, by operating the tablet 1, a writing command signal for displaying the "writing" of the character to be originally input is issued. In response to this, the display control unit 11 sends the writing style display unit 5 as a writing style target character information of the category of the character whose "writing style" should be displayed. The writing style display unit 5 reads from the stroke / pattern standard pattern dictionary 10 corresponding to the sent character category and sends it to the display control unit 11 as writing style information. As a result, "correct writing" or "readable writing" is displayed on the screen of the display 3. The writing style display format displayed on the display 3 is as shown in FIG.

In the above-described embodiment, the character category to be written and displayed is specified by using the kana-kanji conversion, but it may be specified by using a kanji tablet or kanji keyboard. Also, regarding the writing style display format, the format in which the stroke order is added to the stroke pattern has been described, but instead of displaying the stroke order number, it is possible to display in different colors or to display one stroke one by one. Is also good. Furthermore, although an example of application to online character recognition has been shown in the above-described embodiment, the present invention can also be applied to figure input, OCR, CAI (learning system for teaching correct character writing), and the like.

〔The invention's effect〕

As is clear from the above description, according to the present invention, since it teaches how to write a misread character, even if the recognition unit has the same performance, there is an effect that the recognition rate seen by the user increases as it is used. is there.

[Brief description of drawings]

FIG. 1 is a principle diagram of the present invention, FIG. 2 is a diagram showing an embodiment of the present invention, FIG. 3 is a diagram showing an example of a layout of a tablet, and FIG. 4 is a diagram showing a standard handwritten character data format. , Fifth
The figure is a diagram showing an example of a display format for writing. 1 ... tablet, 2 ... recognition section, 3 ... CRT display, 4 ... writing specification section, 5 ... writing display section, 6
...... Control unit, 7 ... Kana-Kanji conversion unit, 8 ... Kana-Kanji conversion dictionary, 9 ... Recognition dictionary, 10 ... Standard pattern dictionary,
11 ... Display control unit, 12 ... Kana keyboard unit, 13
…… Entry area, 14 …… Control command area.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Ogata 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Fujitsu Limited (56) References JP-A-60-254387 (JP, A) JP-A-60-214381 (JP, A) JP-A-59-189483 (JP, A) Actually developed Shou 60-662 (JP, U)

Claims (1)

[Claims] 1. Input means for inputting handwritten characters, a recognition unit for recognizing a category of handwritten characters input from the input unit, and a display for displaying characters in the category of input handwritten characters obtained by the recognition unit. The character recognition device is provided with a character processing means for displaying the character specified by the character specifying information at a specified position on the display screen when the character specifying information and a predetermined command are input from the input means. , A writing style display processing means for displaying on the display the writing style of the characters displayed at the specified position on the display screen when the other predetermined command is input from the input means so that the stroke order is also known. A character recognition device equipped with a writing instruction function.