JPH11282965A - Character recognizing device and computer readable storage medium recording character recognition program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to input his desired characters with no direct input of difficult characters and to reduce the character input load of the user by judging that the character data are inputted at a prescribed input position and also outputting variant characters if these are included in the candidates. SOLUTION: When an input decision part 100 judges that characters are inputted by a user at each prescribed input position, a variant character output part 90 refers to a variant character dictionary 110 to check whether the character candidates to be recognized include variant characters. If the candidates include variant characters, these variant characters are also written into a display RAM 30 as recognition character candidates. Thereby, the variant characters are also displayed when a candidate output part 80 displays on an input/output tablet 20 the character candidates written in the RAM 30. If the first one of displayed character candidates is not correct, the user selects a correct character candidate from the second and its following character candidates.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a character recognition device for recognizing character data or a character or handwritten character input by a pen or the like and converting the character data into a corresponding character code, and operating the character recognition device. Computer-readable recording medium on which a character recognition program for recording is recorded.

[0002]

2. Description of the Related Art Heretofore, in this type of character recognition apparatus, character recognition has been performed with reference to the shape of an input character. When the first candidate is not a correct answer, there has been a method of correcting one or more character candidates as a means for correcting the recognition result, and allowing the user to select a correct answer from the output. The one or more character candidates are limited to character candidates having similar shapes such as “green”, “cone”, and “cone” to “record”, for example.

[0003]

However, in the conventional character recognition device using the above-described method, it is necessary to input the shape even when it is desired to recognize a character having a large number of strokes and difficult. Therefore, it is necessary for the user to manually input characters having a large number of strokes, or to remember difficult characters.

For example, old names, such as "sai" of "Saito" and "sides" of "Watanabe", may be used for personal names and place names instead of the common kanji characters. To recognize "Saito" instead of "Saito", the user must enter "Sai" instead of "Sai", but in many cases, the old fonts are more difficult than regular kanji and are not commonly used Since it is a character, the user may not be able to write it properly, which is a source of erroneous recognition. The relationship between the common kanji and the old font described above is called a variant. "Sai" is a variant of "Sai",
"Side" is a variant of "side"

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem. When handwriting is input at a predetermined input position for inputting a person's name or a place name, if a character candidate has a variant character, the variant character is used. It is an object of the present invention to provide a character recognition device that facilitates input of difficult characters by outputting characters as character candidates.

[0006]

According to a first aspect of the present invention, there is provided a character recognition apparatus for determining whether or not the character data has been input to a predetermined input position. Determining means, candidate output means for outputting one or more character candidates, dictionary means for storing variant character information, and said input determining means determining that the input has been made at a predetermined input position; and In the case where the candidate has a variant character, a variant character output means for outputting the variant character is provided.

In the character recognition processing by the character recognition device of the present invention having the above-described configuration, the input determining means determines whether or not the character data has been input to a predetermined input position. Or output multiple character candidates. When it is determined by the input determining means that the character is input to a predetermined input position, and the character candidate output by the candidate output means has a variant character in the dictionary means,
The variant output means outputs the variant.

[0008] A computer-readable recording medium recording the character recognition program according to claim 2 of the present invention comprises: an input determining program for determining whether or not the character data has been input to a predetermined input position; A candidate output program that outputs one or more character candidates, a dictionary program that stores variant character information, and the input determination program determines that the character candidate has been input to a predetermined input position, and the character candidate And a variant character output program for outputting the variant character when the character is included.

When the above-mentioned character recognition program is read and executed by a computer, in the character recognition processing,
The input determination program determines whether the character data has been input to a predetermined input position, and the candidate output program outputs one or more character candidates. When it is determined by the input determination program that the character is input to a predetermined input position, and the character candidate output by the candidate output program has a variant character in the dictionary program, the variant character output program outputs the variant character. .

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic diagram of a circuit configuration of the character recognition device of the present embodiment. As shown in FIG. 1, the input pen 10 is connected to an input / output integrated tablet 20. The input / output tablet 20 is connected to the display RAM 30 and the display RAM 3
0 is connected to the CPU 40 which controls the entire character recognition apparatus. The ROM 40 and the working RAM 120 are connected to the CPU 40. Also, RO
M50 includes a recognition dictionary 60, a character recognition unit 70, a candidate output unit 80 as a candidate output unit, a variant character output unit 90 as a variant character output unit, an input determination unit 100 as an input determination unit, and a dictionary unit. Is stored.

The recognition dictionary 60 stores, for each character, pattern data for specifying the written form of the character. Each character means all characters such as kana, kanji, numbers, English characters, and symbols.

Character recognition unit (character recognition program) 70
As described later, the handwriting pattern data of the handwritten input character is stored in the working RAM 120, and in the case of offline recognition, the pattern data and the handwriting pattern data stored in the recognition dictionary 60 in response to a recognition command signal. The degree of coincidence with the pattern data is calculated and the working RAM 1
20 is configured to be stored in a predetermined area. At this time, recognition candidate characters are sequentially stored in descending order of matching degree. For online recognition, the working R
Each time a partial handwriting, which is a character part, is input to the AM 120 for character input, in other words, the tablet 2
Each time a partial handwriting data from the time of pen down to 0 to the time of pen up is input, a recognition command signal is generated and recognition processing is executed.

Candidate output section (candidate output program) 80
Is configured to read recognition candidate characters from the working RAM 120, write the recognition candidate characters in the candidate display area of the display RAM 30, and display the recognition candidate characters on the input / output tablet 20.

Input determination unit (input determination program) 100
Is configured to determine whether or not the position where the handwritten character is input is a predetermined variant character use position (in the present embodiment, the name input position). Pen input areas A, B, and C (see FIG. 2) for pen input of handwritten text are displayed on the tablet 20, character recognition is performed on the handwritten characters input by the pen, and the position where the confirmed recognition candidate is input is a block. It is displayed by the cursor K. In other words, the position actually input is indicated by an index symbol such as a block cursor, and this index symbol is dynamically moved to the next input position with the input confirmation, or arbitrarily moved by the operator, Input position (coordinates)
It is determined whether the data matches predetermined position (coordinate) data.

In the variant character dictionary (dictionary program) 110, kanji, symbols, and the like having a variant character relationship are stored for each group.

In the character recognition device of the present embodiment configured as described above, when the user inputs handwritten characters to the input / output tablet 20 using the pen 10, the handwriting data is transmitted to the CPU 40 through the display RAM 30. Can be Then, the CPU 40 transmits the handwriting data to the working R
Write to AM 120 and instruct character recognition unit 70 to perform character recognition. The character recognition unit 70 performs character recognition of the handwriting data written in the working RAM 120 with reference to the recognition dictionary 60, and writes the result in the working RAM 120. Then, the candidate output unit 80
Writes the recognition result written in the working RAM 120 to the display RAM 30 as a recognized character candidate, and also displays it on the input / output tablet 20.

At this time, the input determining unit 100 determines that the character input by the user has been performed at a predetermined input position.
Is determined, whether the recognized character candidate has a variant character is checked with reference to the variant character dictionary 110. If the recognition character candidate has a variant character, the variant character output unit 90 also determines whether the variant character has the variant character. It is written into the display RAM 30 as a recognition character candidate.
Therefore, when the candidate output unit 80 displays the recognized character candidates written in the display RAM 30 on the input / output tablet 20, the variant characters are also displayed. If the first character candidate among the displayed recognized character candidates is not the correct answer, the user selects the correct answer from the second character candidate and on.

Next, the operation of the candidate output unit 80, variant output unit 90, and input judgment unit 100 of the present invention will be described with reference to a display example of the input / output tablet 20 of FIG. 2 and a flowchart of FIG. It is assumed that a program for performing the operation shown in the flowchart of FIG. 3 is stored in the ROM 50 in advance. Further, in the present embodiment, a description will be given assuming a scene where business card data is created. FIG. 2A shows a display example of the input / output tablet 20, in which a sentence editing area 200 for editing a sentence, a candidate display area 210 for displaying recognized character candidates, and characters are input by handwriting using the pen 10. And a character input area 220. Here is the text editing area 2
00 is a screen for creating business card data,
The cursor indicating the position where characters are to be input is at the input position of the name.

By the way, in a person's name, variant characters such as "Saito" and "Saito" for "Saito" and "Watanabe" and "Watanabe" for "Watanabe" are sometimes used. Therefore, it is assumed that information indicating that a variant character is to be output is added in advance to the name input position on the business card data creation screen. That is, it is set as the variant character use position. Here, when the user tries to enter "Saito", "Saito"
Is difficult and difficult to write for those who are not used to it. Therefore, the user inputs “Kai” instead of “Kai” (Step 301, and the following steps are performed in S).
), The input character is recognized (S30).
3). As a result, it is assumed that “Sai”, “Iku”, and “Spring” are recognized as character candidates. Since the input area is a variant character use position to which information indicating that a variant character is to be output is attached (S305: YES), it is determined whether the recognized character candidate has a variant character. The search is performed with reference to the character dictionary 110 (S307). On the other hand, it is not the variant character use position (S3
05: NO), the recognized character candidate is written in the working RAM 120 as it is.

FIG. 4 schematically shows information stored in the variant character dictionary 110. As shown in FIG. 4, the first character candidate “Sai” has two variant characters (S307: Y
ES), the recognition character candidate “Sai” and its variant “Sai, Sai” are written in the display RAM 30 (S30).
9). In other words, just by writing "Sai" by hand,
"Sai" and its allographs are also displayed. Since the next character candidate “iku” exists (S313: YES), similarly, S
The processing from 307 to S313 is repeated. As shown in FIG. 4, since the variant characters of “iku” are not stored in the variant dictionary (S307: NO), only “iku” is displayed in the display RAM 30.
And is written (S311). Thereafter, the same processing is performed, and the processing for the recognition character candidate “spring” is
13, when there is no next character candidate (S313: N
O) The character candidates written in the display RAM 30 are displayed on the input / output tablet 20 (S317). FIG. 2B shows a display example of the input / output tablet 20 at this time.
At the input position where the cursor was in the text editing area 200,
The first character candidate "Sai" is displayed in an undecided state,
In the candidate display area 210, recognition character candidates including a variant of “Sai” are displayed. The user sets the candidate display area 210
Is selected in the text editing area 2
“Sai” and “Sai” in 00 are replaced and determined. FIG. 2C shows a display example of the input / output tablet 20 at this time.

In the character recognition apparatus according to the present embodiment, characters having no variant characters are registered in the variant character dictionary 110, as shown in FIG. Only characters having characters may be registered.

In the character recognition apparatus of the present embodiment, the candidate output unit, the variant character output unit, the input determining unit, and the variant character dictionary are stored in advance in the ROM as a program. However, the present invention is not limited to this. For example, by reading these programs recorded on a computer-readable recording medium such as a floppy disk or a CD-ROM by a reading device, the character input device having the above configuration can be realized in the computer. it can.

Also, the program can be read from an external information processing device and operated using a wired or wireless line. In this case, the floppy disk, the CD-ROM, or the memory of the external information processing device that records the program constitutes the computer-readable recording medium of the present invention.

[0024]

As is apparent from the above description, according to the character recognition device of the first aspect of the present invention,
The user can input a desired character without directly inputting a difficult character, thereby reducing the burden of inputting the character.

According to the character recognition program recorded on the computer-readable recording medium according to the second aspect, the user can input a desired character without directly inputting difficult characters. In this case, the burden can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a circuit configuration of a character recognition device according to one embodiment of the present invention.

FIG. 2 is a display example of an input / output tablet in the character recognition device.

FIG. 3 is a flowchart showing an operation of the character recognition device.

FIG. 4 is a diagram schematically showing a configuration of a variant character dictionary of the character recognition device.

[Explanation of symbols]

 10 Pen 20 Input / Output Tablet 30 Display RAM 40 CPU 50 ROM 60 Recognition Dictionary 70 Character Recognition Unit 80 Candidate Output Unit 90 Variant Output Unit 100 Input Judgment Unit 110 Variant Dictionary 200 Text Editing Area 210 Candidate Display Area 220 Characters Input area

Claims (2)

[Claims] 1. A character recognition apparatus for character-recognizing character data, printed or handwritten characters, etc., input with a pen or the like, extracting one or more character candidates, and converting the character candidates into character codes corresponding to the character candidates. An input determining means for determining whether or not the character data has been input to a predetermined input position; a candidate output means for outputting the one or more character candidates; and a dictionary means for storing variant character information. If it is determined by the input determining means that the character candidate has been input to a predetermined input position, and if it is determined that the character candidate has a variant character based on variant character information of the dictionary means, the variant character is output. And a variant character output unit. 2. A character recognition device for recognizing character data input from a pen or the like, or printing characters or handwritten characters, to extract one or more character candidates and converting them to a character code corresponding to the character candidates. A computer-readable recording medium on which a character recognition program for operating a computer is recorded, wherein an input determination program that determines whether the character data has been input to a predetermined input position; A candidate output program that outputs character candidates of the following; a dictionary program that stores variant character information; and a determination that the input determination program has determined that the character has been input to a predetermined input position, and based on the variant character information of the dictionary unit. If it is determined that the character candidate has a variant character, a variant character output program for outputting the variant character is written. Computer readable recording medium recording a character recognition program, characterized in that the.