JP2001022886A - Device and method for handwriting input - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a handwriting character input device for improving the efficiency in handwriting input by outputting the candidates of the original order of strokes even when the correct order of strokes is not inputted by handwriting. SOLUTION: This device is provided with a means 101 for recognizing a character inputted by handwriting, a means 102 for outputting KANJI (Chinese character) to become a candidate to an output device in the middle of character input, a storage means 103 for storing the order of strokes during handwriting character input, a means 104 for instructing the change of the order of input of the character inputted by handwriting and a means 105 for reading out the order of strokes stored in the storage means 103 on the basis of this change instruction and changing the order of two continuous lines when these lines cross. Then, the order of the strokes of the character inputted by handwriting is replaced with the correct order of strokes and the candidate character corresponding to the replaced character is outputted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information input device, and more particularly, to a device and method for inputting Chinese characters by handwriting input.

[0002]

2. Description of the Related Art As a conventional handwriting input device, for example, Japanese Patent Application Laid-Open No. 09-190499 discloses a device capable of inputting characters at a stage where a handwriting input has been performed halfway. A handwritten character recognition unit for recognizing a character shape and a writing order for each input stroke; and a character file storing a shape and a writing order for each character. Character candidate output means for outputting a character including the recognized shape and having the same writing order as a character candidate; character selection means for selecting a specific character from the character candidates output by the character candidate output means; And an output unit that outputs the input character as a handwritten input character.

In this conventional handwriting input device, characters including a shape recognized by character recognition means and having the same writing order are output as character candidates.

[0004]

However, in the above-described conventional handwriting input device, when a writing order error occurs during handwriting input, in addition to the means for outputting candidates based on the writing order, the conventional handwriting input device is not limited to the means for outputting candidates. There is a need for two handwriting recognition functions of means for judging the shape of each character and outputting a candidate, and there is a problem that the configuration is complicated.

[0005] The reason is that in the above-mentioned conventional apparatus,
This is because, when handwriting input is performed, if the stroke order of the kanji is incorrect, it is lacking in consideration and knowledge that a desired kanji shape can be formed by replacing the stroke order.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above problems, and has as its object to display a character candidate for handwriting input during character input, even if there is an error in the writing order. It is an object of the present invention to provide a handwritten character input device that outputs original character candidates to improve the efficiency of handwritten input.

[0007]

According to a first aspect of the present invention, there is provided an apparatus according to the present invention, wherein when a handwriting character input is detected, when the writing order of the characters is different from the correct writing order, the correct writing order is replaced. Means for outputting candidate characters for the character.

According to the present invention, when an error is detected in the writing order of two lines input before and after, a candidate character which is guessed in the writing order obtained by changing the writing order of the two lines is output.

Further, the method of the present invention, when detecting that the writing order of the characters input by handwriting is different from the correct writing order,
The replacement is performed in the correct writing order, and a candidate character for the replaced character is output.

[0010]

Embodiments of the present invention will be described. When performing handwritten character input, in a handwritten character input device that displays candidate characters from the middle of character input,
If you make a mistake in the writing order at the initial stage of handwritten character input, rearrange the input character writing order and output the character candidates again, so that the handwriting character input recognition error may occur. It outputs character candidates in consideration of mistakes.

According to a preferred embodiment of the present invention, a handwriting input means (101) for recognizing a handwritten input character and a candidate output means (102) for outputting a character which becomes a candidate during the character input to an output device. A storage unit (103) for storing a writing order during handwritten character input, a replacement instruction unit (104) for instructing replacement of the input order of handwritten characters, and
A replacement unit (105) for reading the writing order stored in the storage unit and replacing the two lines input before and after when the two lines intersect with each other. The replacement is performed in order, and candidate characters for the replaced character are output.

Also, the present invention provides a handwriting input means (101) for recognizing a handwritten input character, and a candidate output means (1) for outputting a candidate character to an output device during character input.
02), a storage unit (103) for storing the writing order during handwritten character input, and, for two lines input before and after, when these intersect, the writing order stored so far in the storage unit is stored. Copy to another area of said storage means,
A replacement unit (105) for replacing the writing order of the copied contents may be provided, and character candidates may be output for all of the writing orders stored in the storage unit (103).

In a preferred embodiment of the present invention, the handwriting input means (101) and the candidate output means (1)
02), replacement instruction means (104), replacement means (105)
The functions and processes of are realized by a program executed on a computer. In this case, the present invention can be implemented by reading the program from a recording medium on which the program is recorded and executing the program by a computer.

[0014]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

FIG. 1 is a diagram showing an apparatus configuration of an embodiment of the present invention. FIG. 2 is a diagram schematically showing the operation of one embodiment of the present invention.

Referring to FIG. 1, in one embodiment of the present invention, a data processing device 100 includes a handwriting input means 101 for recognizing handwritten characters such as kanji input from an input device 107, and a kanji character input device. Candidate output means 102 for displaying and outputting candidate kanji on display device 106, storage means 103 for storing the stroke order during character input, and replacement instructing means 104 for instructing replacement of the input order of kanji.
And the storage unit 10 based on the instruction of the replacement instruction unit 104.
And means 105 for reading the writing order stored in No. 3 and replacing the order.

Referring to FIG. 2, for example, when "left" is input from the input device 107 to the handwriting input means 102, if the input order is wrong, the replacing means 105 changes the order of 1, 2 By replacing, the kanji candidate "left" is output.

FIG. 3 is a flow chart for explaining the operation of one embodiment of the present invention. The operation of the embodiment of the present invention will be described in detail with reference to FIGS.

First, as an initial setting, a counter n for the number of input images is set to 0 (step 201 in FIG. 2).

Next, characters input by handwriting are input from the handwriting input means 101 (step 202), and the input image counter n is incremented by one.

Further, the writing order of the characters is stored in the storage means 103 (step 203).

In the next step 205, the replacement instructing means 1
If the instruction to change the writing order is given by 04, the process proceeds to step 207. If the instruction to change the writing order is not given, the process proceeds to step 206.

In step 206, candidate characters estimated from the input writing order are input to the candidate output means 102.
Is output.

On the other hand, if it is determined in step 205 that the replacement instructing unit 104 has instructed the rearrangement of the writing order, the counter k is set to 1 (step 20).
7).

The number of characters for which the value of the counter k has been input (k =
If the count has advanced to n) (Yes in step 208), the process returns to step 202 of the input process.

At step 208, if k is not equal to n, then at step 209, the k-th input line and k + 1
Check if the line entered intersects.

If they do not intersect (N in step 208)
o), the counter k is increased by one (step 211), and the determination in step 208 is performed again.

On the other hand, if the k-th line and the (k + 1) -th line cross each other (Yes in step 209), k,
The output unit 102 outputs candidate characters estimated in the writing order obtained by changing the (k + 1) th writing order (step 21).
0), and proceed to step 211.

FIG. 4 is a diagram for explaining an embodiment of the present invention. The first and second writing orders of the character “right” are as shown in FIGS. 4A and 1B, but if the order of 1 and 2 is wrong, the writing orders 1 and 2 are replaced. As a result, it is possible to output a candidate closer to the “right” character.

Next, a second embodiment of the present invention will be described. The second embodiment of the present invention does not include the replacement instruction means 104 of the above embodiment shown in FIG. Instead, 2
When the book lines intersect, the writing order up to that point is copied, and all character candidates of the writing order and the original one are output. FIG. 5 is a flowchart for explaining the operation of the second embodiment of the present invention. The operation of the second embodiment of the present invention will be described with reference to FIG.

First, the input image number counter n and the branch counter k are cleared, and the array Z for storing the writing order in the storage means 103 is initialized (step 401).

Next, a handwriting input is received from the handwriting input means 101 (step 402), and the input image counter n is incremented by one (step 403).

Here, the counter n of the input character is 1
In the case of, the writing order is stored in the array Z [1] (step 405), and the candidate character is output by the candidate output means 102 (step 406).

If the value of the character counter n is other than 1, at step 407, it is checked whether or not the lines of the character input order n and n-1 intersect.

If there is no intersection in the determination at step 407, the writing order is stored in the array Z [1] to Z [k] in the storage means 103.
(Step 413), and the process proceeds to Step 412.

If it is determined in step 407 that the lines of the character input order n and n-1 intersect, a copy of the contents of the arrays Z [1] to Z [k] stored so far is made ( (Step 408) In the original arrays Z [1] to Z [k], the writing order of n and n-1 is sequentially stored as it is (Step 409).

The copied sequences Z [k + 1] to Z [k *
Up to 2], the writing order of n and n-1 is replaced and sequentially stored (step 410).

The value of the branch counter k is set to twice the original value (step 411).

Finally, arrays Z [1] to Z [1] to Z [2] having a writing order in which all the lines intersecting in the character writing order are replaced.
A candidate character is output by the output unit 102 using all the writing orders stored up to [k] (step 412).
Return to step 402.

[0040]

As described above, according to the present invention,
This has the effect of improving the input efficiency of handwritten input of kanji and the like and improving the recognition efficiency.

The reason is that, when displaying candidate characters in the middle of handwriting input, if the candidate characters are misaligned due to the wrong writing order, the kanji candidates can be selected without re-input. To output.

[Brief description of the drawings]

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

FIG. 2 is a schematic diagram illustrating the configuration and operation of one embodiment of the present invention.

FIG. 3 is a flowchart illustrating a processing procedure according to an embodiment of the present invention.

FIG. 4 is a diagram for explaining one embodiment of the present invention.

FIG. 5 is a flowchart illustrating a processing procedure according to another embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 data processing device 101 handwriting input means 102 candidate output means 103 storage means 104 replacement instruction means 105 replacement means 106 display device

Claims (10)

[Claims] When a handwritten character is detected during input of a handwritten character to be different from a correct writing order, a correct writing order is replaced, and a candidate character for the replaced character is output. Handwriting input device. 2. When a mistake is made in the writing order of two lines inputted before and after, a candidate character guessed in the writing order obtained by changing the writing order of the two lines is output. The handwriting input device according to claim 1, wherein: 3. A means for recognizing a character input by handwriting, a means for outputting a candidate character to an output device during character input, a storage means for storing a stroke order of the character being handwritten, and a handwriting input. Means for instructing the replacement of the input order of the input characters, and, based on the replacement instruction, reading the writing order stored in the storage means. A handwriting input device, comprising: replacing characters input by handwriting in a correct writing order; and outputting candidate characters for the replaced characters. 4. A means for recognizing a character input by handwriting, a means for outputting a candidate character from the middle of character input to an output device, and a storage means for storing a stroke order of the character during handwriting input. Means for copying the writing order stored in the storage means to another area of the storage means when the two lines intersect with each other, and replacing the writing order with the copied contents; And outputting character candidates for all of the writing orders stored in the storage means. 5. A handwriting input device according to claim 1, wherein the handwriting input device recognizes the kanji input by handwriting and outputs kanji candidates. 6. A handwriting input method comprising, when it is detected that the writing order of characters input by handwriting is different from the correct writing order, replacing the correct writing order and outputting candidate characters for the replaced character. 7. When a mistake is made in the writing order of two lines inputted before and after, a candidate character guessed in the writing order obtained by changing the writing order of the two lines is output. 7. The handwriting input method according to claim 6, wherein: 8. A handwriting input method according to claim 6, wherein the kanji input by handwriting is recognized and kanji candidates are output. 9. A storage means for storing (a) a process of recognizing a handwritten input character, and (b) a stroke order of the character being handwritten based on an instruction to replace the input order of the handwritten input character. In the case where two lines input before and after crossing each other intersect with each other, and (c) outputting a candidate kanji from the middle of character input to the output device. A program for causing a computer to execute the processes (a) to (c) of: replacing a handwritten input character in a correct writing order and outputting candidate characters for the replaced character to the output device. Recording medium on which is recorded. 10. A process for recognizing a handwritten input character, and (b) storing a stroke order of the character being handwritten when two lines input before and after intersect each other. (C) copying the writing order stored in the storage means up to that time into another area of the storage means and replacing the writing order with respect to the copied contents; and (c) processing the entire writing order stored in the storage means. A recording medium which records a process for outputting a character candidate to an output device and a program for causing a computer to execute the processes (a) to (c).