JP3299614B2 - Handwriting input data processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten input data processing device for handling handwritten input data.

[0002]

2. Description of the Related Art In recent years, there has been a strong demand for handwriting input as a method of inputting data to a computer, and its use has been extensive. Word processors and electronic notebooks having a notepad function of converting handwritten input data into image information without character recognition and recording the converted information have been commercialized. There is also a word processor or the like that uses a tablet as an input device, recognizes handwritten input data characters, converts them into character codes, and records them.

Further, a technique for recording handwritten input data as stroke information without converting it into an image or a character code is disclosed in the following document. "Line Extraction from Handwriting Data" Proceedings of the Human Interface Symposium VOL.5TH PAGE.101-1
08 '89 “Extracting characters from handwriting data” IEICE Transactions on Electronics, D-2 VOL.73 NO.10 PAGE.1796-1798 '90 “Stroke Editor and Direct Instruction / Operation Method” IPSJ Transactions VOL. 32 No.8 PAGE.1022-1029 '91 In the above literature, handwritten input data is classified into chunks such as strokes, characters, lines, etc., and methods for cutting out lines and characters, and selection, insertion, deletion, and copying of handwritten input data Introduces a method intended only for editing, such as moving.

[0004]

However, according to the above-mentioned prior art, insertion, insertion,
It merely discloses editing means such as deletion, erasure, movement, etc., and generally has a problem that when handwritten input data is input, disturbances and irregularities in characters and lines are displayed as they are. Specifically, there are irregularities in the arrangement of characters, inclination of characters, irregularities in character sizes, irregularities in line spacing, and the like. As the cause, it is considered that an operation feeling like writing on paper using a writing instrument cannot be obtained with the tablet device, and handwriting is disturbed when the input speed is increased.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a handwritten input data processing device for displaying disordered and irregular handwritten input data.

[0006]

[Means for Solving the Problems]

[0007]

[0008]

[0009]

The present invention also relates to a handwriting input data processing apparatus for processing handwritten input data represented by stroke information given by a series of coordinates, comprising: Character storage means for storing character information indicating a minimum rectangle enclosing a stroke to be drawn, and a line for storing line information indicating a minimum rectangle enclosing a rectangle of characters constituting the line and handwritten input data divided for each line Storage means, a block consisting of a series of rows, block storage means for storing block position information indicating the position information, character information and a straw in the character storage means
Based on the click information, and detects the tilt of the character, a character inclination adjusting means for aligning the inclination by rotating the characters in accordance with the inclination, the inclination
After the adjustment, all the characters are adjusted based on the character information in the character storage unit.
Is calculated, and the frequency of the calculated character size
A character size that adjusts for irregular character sizes based on the cloth.
Size adjustment means and the divided characters after the character size adjustment.
Set a reference line for arranging lines as lines based on line information
For each character in the line, the reference line and the character position
Is detected, and the deviation is determined for each character in the line.
Whether to move depending on whether it is greater than or not
And move the characters determined to be moved by the amount of the shift.
Moving character position adjusting means, and after the character position adjustment, for all lines included in the block indicated by the block position information, detect all line spacing based on the line information, and adjust line alignment for irregularity between the lines. Means.

[0011]

Further , the present invention is provided by a series of coordinates.
Process handwritten input data represented by stroke information
A handwriting input data processing device that is divided into character units.
Handwritten input data and strokes that compose the characters
Character storage that stores character information indicating the smallest rectangle surrounding the
Column and the handwritten input data divided by line and its line
Line information indicating the smallest rectangle surrounding the rectangle of the characters
Character information based on the line storage means and the line information.
Character position to adjust the order of characters within a line
The character position adjusting means includes a reference line setting means for setting a reference line for arranging the divided characters as lines based on line information, and a reference line for each character in the line. Displacement detection means for detecting a deviation from a character position; movement determination means for determining, for each character in a line, whether or not the movement is based on whether or not the deviation is greater than a predetermined threshold value; Character moving means for moving the selected character by the amount of the shift.

Further , the present invention is provided by a series of coordinates.
Process handwritten input data represented by stroke information
A handwriting input data processing device that is divided into character units.
Handwritten input data and strokes that compose the characters
Character storage that stores character information indicating the smallest rectangle surrounding the
Based on the character information in the character storage means.
Detect tilt and rotate text according to tilt to align tilt
Character inclination adjusting means, wherein the character inclination adjusting means,
Horizontal / vertical stroke determining means for determining whether a character has a stroke close to horizontal / vertical; and, when it is determined that the character has a stroke close to horizontal / vertical, the stroke of the character is determined by a stroke close to horizontal / vertical. It is characterized by comprising a tilt detecting means for detecting the tilt , and a character rotating means for correcting the tilt by rotating the character in accordance with the tilt detected by the tilt detecting means.

[0014] In addition, the character inclination adjustment means, characters,
Horizontal / vertical stroke determining means for determining whether the stroke has a horizontal / vertical stroke, and, when it is determined that the stroke does not have a horizontal / vertical stroke, the stroke information indicates a point on the stroke on the bottom of the rectangle. A threshold value judging means for detecting a distance between a point closest to the base and the base of the rectangle, and judging whether the distance is equal to or smaller than a predetermined threshold or larger than the predetermined threshold; Below
If it is sectional, and the inclination detection means for detecting an inclination of the character by the distance, depending <br/> the inclination detected by the inclination detection means, character rotation for correcting the tilt by rotating the character Means.

[0015] In addition, the character inclination adjustment means, characters,
Horizontal / vertical stroke determination means to determine whether the stroke has a horizontal / vertical stroke, and if it is determined that the stroke has a horizontal / vertical stroke, the inclination of the character is detected based on the horizontal / vertical stroke The first inclination detecting means, and when it is determined that there is no horizontal / vertical stroke, from the stroke information, a point on the stroke that is not on the bottom of the rectangle but is closest to the bottom of the rectangle and the distance from the bottom of the rectangle. Threshold detecting means for detecting a distance and determining whether the distance is equal to or less than a predetermined threshold or greater than the predetermined threshold;
When the distance is determined to be equal to or less than a predetermined threshold , one of a second inclination detecting means for detecting the inclination of the character based on the distance, and one of the first inclination detecting means and the second inclination detecting means And a character rotating means for correcting the inclination by rotating the character in accordance with the inclination detected in (1).

[0016]

Further , the present invention is given by a series of coordinates.
Process handwritten input data represented by stroke information
A handwriting input data processing device that is divided into character units.
Handwritten input data and strokes that compose the characters
Character storage that stores character information indicating the smallest rectangle surrounding the
Based on the character information in the character storage means.
Text that detects size and adjusts for irregular text size
Size adjusting means, wherein the character size adjusting means comprises:
A character size calculating means for calculating all character sizes from the character information in the character storage means, and a reference character size setting means for setting a character size to be a reference from a histogram of all character sizes calculated by the character size calculating means And a character size change determination unit that compares the reference character size with the size of the character to be changed and, if the difference is greater than a predetermined threshold, determines that the character size is to be excluded from the target to be changed. For characters that are not excluded by the character size change determining means, the reference character size set by the reference character size setting means is:
Character size changing means for changing the character size is provided.

Further, the character size adjustment means, the characters and the character size calculation means for calculating all the character size from the character information storage unit, 1 in all character sizes histogram calculated by said character size calculating means
The first peak character size is defined as the first reference character size.
A first reference character size setting unit that sets the character size which is the peak in the histogram of all character sizes calculated by the character size calculation unit.
A peak determining unit that determines whether there is only one character other than the reference character size, or two or more characters; and if the peak determining unit determines that there is only one character size at the peak, the character the character size as the second peak in all the character size histogram calculated by the size calculating unit and the second reference character size
A second reference character size setting means for setting Te, character size becomes a peak by the peak determining means said first reference
When other than the character size is determined to exist two or more, they more than one character size and the first reference character Sa
And a third reference character size setting means for setting an average value of the size as a third reference character size, and a range between the first reference character size and the second reference character size when the second reference character size is set. A branch value setting means for setting a branch value which is a size of a character whose appearance frequency takes a minimum value, and a comparison between the smaller size of the reference character size and the size of the character to be changed, and the difference is determined by a predetermined value. A character size change determining unit that determines that the character size is to be excluded from the target for changing the character size if the size is larger than the threshold, and a character size change determining unit that sets the character size when the second reference character size is set. For a character that is not excluded from the object to be changed, by comparing the size of the character with the branch value, the character size of either the first reference character size or the second reference character size is determined. And a third reference character size is set to the character size determined by the character size branch value determining means when the second reference character size is set. Character size changing means for changing the size of the character to the third reference character size if the second reference character size is not set, and to the first reference character size if neither the second reference character size nor the third reference character size is set. It is characterized by.

[0019]

[0020]

[Action]

[0021]

Further , according to the structure of the present invention, the character unit
The divided handwritten input data and the text
Character information indicating the smallest rectangle surrounding the roke is stored in character storage means.
And the handwritten input data that is stored in
Line information indicating the smallest rectangle surrounding the rectangles of the characters that make up the line
Information is stored in the row storage means, and a block consisting of a series of rows.
And the block position information indicating the position information
The character inclination adjusting means stores the character
Based on the character information and stroke information of the
Detect tilt and rotate text according to tilt to align tilt
You.

Then, the character size adjusting means is provided with the inclination
After the adjustment, all of the characters are stored based on the character information in the character storage unit.
Calculate the font size and the calculated font size frequency distribution
Adjusts the size of the characters based on the
Adjusting the character size after adjusting the character size.
Based on the line information, set a reference line to prepare as
For each character in the line, the difference between the reference line and the character position
Detected, and for each character in the line, the deviation
It is determined whether to move depending on whether it is greater than the threshold or not.
And move the characters determined to be moved by the amount of the shift.
You. Then, the line position adjusting means adjusts the character position,
All lines included in the block indicated by the block position information
For all rows based on row information
Adjust the gap between them.

Further , according to the structure of the present invention, the character
The divided handwritten input data and the text
Character information indicating the smallest rectangle surrounding the roke is stored in character storage means.
And the handwritten input data that is stored in
Line information indicating the smallest rectangle surrounding the rectangles of the characters that make up the line
Information is stored in the line storage means, and the character position adjusting means
Character information based on the information
To arrange the disorder.

Here, it is included in the character position adjusting means.
The reference line setting means arranges the divided characters as lines.
A reference line based on the line information,
Is the difference between the reference line and the character position for each character in the line.
Is detected, and the movement judging means detects each character in the line.
Depends on whether the deviation is greater than a predetermined threshold.
Character moving means, and the character moving
The character determined to be moved is moved by the amount of the shift.

Further , according to the structure of the present invention, the character
The divided handwritten input data and the text
Character information indicating the smallest rectangle surrounding the roke is stored in character storage means.
And the character inclination adjusting means is based on the character information.
To detect the tilt of the character, and rotate and tilt the character according to the tilt.
Align. Here, the horizontal / vertical stroke determining means included in the character tilt adjusting means determines whether the character has a stroke close to horizontal / vertical, and the tilt detecting means has a stroke close to horizontal / vertical. If it is determined that the character is inclined, the inclination of the character is detected by a stroke close to the horizontal and vertical directions, and the character rotation unit corrects the inclination by rotating the character according to the inclination detected by the inclination detection unit. .

Further, the water included in the character inclination adjusting means is
The horizontal / vertical stroke judgment means
Judge if you have a close stroke, threshold judgment
Means are determined not to have horizontal and vertical strokes
The stroke information from the point on the stroke
From the point closest to the base but not on the base of the rectangle and the base of the rectangle
Is detected, and if the distance is below a predetermined threshold,
It is determined whether the distance is greater than the distance.
If it is determined that the distance is equal to or less than a predetermined threshold, the distance is determined.
The character rotation means detects the inclination of the character.
Rotating characters according to the inclination detected at the step
Correct the inclination more.

The water included in the character inclination adjusting means
The horizontal / vertical stroke judgment means
Judge whether the stroke is close or not, and perform the first tilt detection.
If the delivery means has a stroke that is nearly horizontal or vertical
If it is determined, a stroke close to horizontal and vertical
Detects the inclination of the character and sets the threshold
If it is determined that there is no stroke,
The stroke information indicates that the point on the stroke is not on the bottom of the rectangle
The distance between the point closest to the base and the base of the rectangle is detected, and
Is less than or equal to a predetermined threshold.
And the second inclination detecting means detects that the distance is a predetermined threshold.
If it is determined to be less than or equal to the value,
The inclination is detected, and the character rotation unit is connected to the first inclination detection unit.
According to the tilt detected by any of the second tilt detecting means
Then, the inclination is corrected by rotating the character.

Further , according to the structure of the present invention, the character unit
The divided handwritten input data and the text
Character information indicating the smallest rectangle surrounding the roke is stored in character storage means.
The character size adjustment means is based on the character information.
To detect the character size and adjust for irregular character sizes.
Adjust. Here, the character size calculating means included in the character size adjusting means calculates all character sizes from the character information in the character storage means, and the reference character size setting means calculates all the character sizes calculated by the character size calculating means. A reference character size is set from the character size histogram of the character, and the character size change determination unit compares the reference character size with the size of the character to be changed. If the difference is larger than a predetermined threshold value, It is determined that the character size is not to be changed, and the character size changing unit sets the reference character size set by the reference character size setting unit to the character not excluded by the character size change determining unit. , Change the text size.

The character size adjusting means includes
The character size calculation means is configured to read the character information from the character storage means.
Calculate all character sizes and set the first reference character size
Means are all calculated by the character size calculating means.
The first peak in the character size histogram
Is set as the first reference character size,
The work determination means is calculated by the character size calculation means.
Peaks in histograms of all character sizes
Character size other than the first reference character size
It is determined whether or not there are two or more.

Then, the second reference character size setting means:
The peak character size may be one
If it is determined that there is only one
Histogram of all character sizes calculated by calculation means
The second peak character size in the system
Set as character size.

Further, the third reference character size setting means includes:
The character size at which the peak is determined by the peak determination means is
It is determined that there are two or more
If two or more character sizes and the first
The average value with the quasi-character size is set as the third criterion character size.
And the branch value setting means sets the second reference character size.
If the first reference character size and the second reference character size
Characters with the lowest occurrence frequency in the range between
Set the branch value that is the size of.

When the character size change determining means determines that the reference character size
Size ratio of the smaller of the characters to the size of the character to be changed
If the difference is greater than a predetermined threshold, the character
Judgment to exclude from the target to change the size
Is set to the second reference character size.
If the character size change
For characters not excluded from resizing
By comparing the size of the character with the branch value,
Either the first reference size or the second reference size
Determine whether to change the font size.

Then, the character size changing means is set to the second reference
If character size is set, branch to the character size
The third reference sentence is added to the character size determined by the value determination means.
If the font size is set, the third reference character size
In addition, both the second reference character size and the third reference character size are set.
If not, set the size of the character to the first reference character size.
To change.

[0035]

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
This will be specifically described. FIG. 1 shows the appearance of a handwritten input data processing device, which is common to other embodiments. 11
Is a handwriting input data processing apparatus main body, 12 is a pen for handwriting input.

FIG. 2 is a block diagram of a handwritten input data processing device according to the first embodiment of the present invention.
1, display device 22, character dividing device 23, line dividing device 2
4. It comprises a character display position adjusting device 25. Input device 21
Detects the coordinates input by the input pen 12 as handwritten input data.

The display device 22 displays the handwriting of the handwritten input data. The character dividing device 23 divides the handwritten input data into character units. As a method of dividing into character units, a document in the related art, "Extraction of Characters from Handwriting Data" Transactions of the Institute of Electronics, Information and Communication Engineers D-2 VOL.73 NO.10 PAGE.1796
-1798 Since it is described in '90, it is omitted. It is also assumed that stroke information of the divided character and position information including position coordinates of a circumscribed rectangle of the divided character are held. In addition, it is divided into characters in correspondence with horizontal writing and vertical writing.

The line dividing device 24 divides the handwritten input data in line units. For the method of dividing into line units, see the literature of the prior art, "Line segmentation from handwriting data", Human Interface Symposium Proceedings VOL.5T
H PAGE.101-108 '89. It is also assumed that position information including the position coordinates of the circumscribed rectangle of the divided row is held. Furthermore, it is assumed that the image is divided into line units corresponding to horizontal writing and vertical writing.

The character display position adjusting device 25 has a function of rearranging the characters so that the display positions of the characters in the line are aligned with the virtual reference line. FIG. 3 is a block diagram showing a detailed configuration of the character display position adjusting device 25, which is composed of a virtual reference line setting unit 31, a shift detecting unit 32, a movement determining unit 33, a character data moving unit 34, and an end determining unit 35. Have been.

The virtual reference line setting unit 31 includes the line dividing device 24
Then, the position coordinates of the line divided by are written, and the line at the lower end of the line is set as a virtual reference line in the case of horizontal writing, and the center line of the line in the case of vertical writing. Here, the virtual reference line is a line serving as a reference when rearranging the divided characters so as to be arranged and displayed as a line, and in the case of horizontal writing in the present embodiment, the line at the lower end of the circumscribed rectangle of the line And

The shift detecting section 32 includes a virtual reference line setting section 31.
Is detected from the virtual reference line provided in step (2) and the line at the lower end of the character obtained from the stroke information from the character dividing device 23. The movement judging unit 33 judges whether or not the shift is detected based on whether or not the shift detected by the shift detecting unit 32 is larger than a threshold value as a criterion for judging whether or not to move.

The character data moving section 34 includes a movement determining section 33
Thus, the character determined to be moved is moved by the amount of the displacement based on the information held in the character dividing device 23. The end determining unit 35 determines whether or not the processing of the shift detecting unit 32, the moving determining unit 33, and the character data moving unit 34 has been completed for all the characters divided by the character dividing device 23. Causes the shift detection unit 32 to detect the next character in order to perform the processing of the next character.

Further, the handwritten input data processing device 11
The input device 21 and the display device 22 are arranged so as to overlap each other, and display the trajectory of the input pen 12. The operation of the handwritten input data processing device of the present embodiment configured as described above will be described below. The handwritten data input from the input device 21 is automatically divided into characters and lines by the character dividing device 23 and the line dividing device 24 based on the coordinate information and the sampling time. The handwritten input data shown in FIGS.
FIGS . 5 (a) and 5 (c) are diagrams in which a rectangular frame for editing that is divided into characters and lines is added. Reference numeral 51 denotes a rectangle circumscribing the handwritten input data divided into characters. Reference numerals 52 and 53 denote rectangles circumscribing the handwritten input data divided into lines. However, FIG.
In the figure, the circumscribed rectangle of the line is larger than the actual rectangle for convenience of explanation so that the rectangle of the character and the line can be easily understood.

The method in this case is described in the conventional literature.
The description is omitted. This divided character data
And character display position adjustment according to the operation flow shown in FIG.
The adjusting device 25 performs the following operation. However, FIG.
Only the case of writing is described. First, temporary
The reference line setting unit 31 separates
The position coordinates of the specified row, and the row if horizontal writing
The bottom line of the circumscribed rectangle 53 is the center line of the line in the case of vertical writing
Is set as a virtual reference line (step
S61). Next, the shift detection unit 32 sets the virtual reference line.
The virtual reference line provided by the defining unit 31 and the character dividing device 23
To the coordinates of the character data obtained byfor, Horizontal
In the case of vertical writing, the left and right misalignment is detected in vertical writing.
Step S62). The movement determining unit 33 sends the
Therefore, whether the detected deviation is larger than the threshold or not
To determine whether to move character data
Is determined (step S63). If you want to move,
When the movement is performed by the data movement unit 34 and the movement is not performed
IsThe end determination unit 35 makes the end determination. Also
Characters such as 54 in FIG. 5 are used to determine the threshold.
To the virtual reference line located at the bottom of the circumscribed rectangle 53 of the row.
Alignment is not good, so input data like this
Display position of the original handwritten input data in order to support
The difference between the display position after adjustment and the
Adjust the display position only when it is not possible.
You. The character data moving unit 34 uses the movement determining unit 33
Horizontal writing for characters that are deemed to move
In the case of, it is shifted downward by the distance, and in the case of vertical writing, it is
Based on the information held in the character dividing device 23,
(Step S64). The end determination unit 35
Check whether all data to be moved is complete.
If the judgment has not been made based on the
In order to move the next character,
The character of is detected. If it is finished,
The process ends (step S65).

Upon completion, the display device 22 displays the character whose display position has been corrected. FIGS. 4 (b) and 4 (d) show diagrams after the display position is corrected, and FIGS. 5 (b) and 5 (d) show diagrams with a rectangular frame added for explanation . Second embodiment of the present invention in the following that it is possible to obtain a display of the handwritten input data according to this embodiment is divided character, in a row, well-equipped by adjusting the display position of the row of characters as above Will be described with reference to FIGS. The appearance of the handwritten input data processing device of this embodiment is the same as that of the embodiment shown in FIG.

FIG. 7 is a block diagram of a handwritten input data processing apparatus according to the present embodiment, which is provided with a character inclination adjusting device 71 in addition to the configuration of the first embodiment. The character inclination adjusting device 71 detects the inclination of the character. FIG. 8 is a block diagram showing a detailed configuration of the character inclination adjusting device 71. The character inclination adjusting device 71 includes a horizontal / vertical stroke determining unit 8.
1, threshold value judgment unit 82, inclination detection unit A83, inclination detection unit B84, rotation coordinate determination unit 85, character data rotation unit 8
6. An end determination unit 87.

The horizontal / vertical stroke judging section 81 judges from the stroke information of the character held by the character dividing device 23 whether the character has a stroke which is almost horizontal or vertical. If it does, the inclination detecting unit A83 detects the inclination, and if not, the threshold judging unit 82 is started. From the stroke information of the character held by the character segmenting device 23, the threshold value judging section 82 calculates the distance between the lowest point, which is the point on the stroke that is not on the base of the rectangle but the closest to the base, and the base of the rectangle. Then, it is determined whether the distance is equal to or less than a certain threshold value or greater than the threshold value. If the distance is equal to or less than a certain threshold, the distance is sent to the inclination detecting unit B84 to cause the inclination to be detected. If the distance is equal to or more than the certain threshold, the end determining unit 87 performs the end determination.

The inclination detecting unit A83 detects the inclination of the character based on the inclination of the stroke which is almost horizontal or vertical. In this embodiment, the inclination of the stroke closest to the horizontal and vertical directions is detected as the inclination of the character. The inclination detection unit B84 detects the inclination of the character based on the distance from the lowest point of the stroke detected by the threshold value judgment unit 82 to the bottom of the rectangle. In the present embodiment, the inclination is calculated based on the coordinates of the point where the stroke contacts the base and the coordinates of the lowest point.

The rotation coordinate determination section 85 includes an inclination detection section A83
Alternatively, for the character whose inclination is detected by the inclination detection unit B84, the center coordinate of the rectangle is obtained as the rotation coordinate based on the position information held by the character dividing device 23. The character data rotation unit 86 corrects the inclination by rotating the character to be rotated around the rotation coordinate obtained by the rotation coordinate determination unit 85 based on the detected inclination.

The end judging section 87 judges whether or not the processing of the horizontal / vertical stroke judging section 81 has been completed for all of the characters divided by the character dividing device 23. Is performed, the horizontal / vertical stroke determination unit 81 is caused to detect the next character. The operation of the handwritten input data processing device of the present embodiment configured as described above will be described below.

As in the case of the first embodiment, the input device 2
The handwritten data input from 1 is automatically divided into characters and lines by the character dividing device 23 and the line dividing device 24 based on the coordinate information and the sampling time. FIG. 10A shows a diagram in which the handwritten input data shown in FIG. 9A is divided into characters and lines and a rectangular frame is added for explanation. Up to this point, the operation is the same as in the first embodiment.

Based on the divided character data, FIG.
The character inclination adjusting device 71 performs the following operation according to the operation flow shown in FIG. However, FIG. 11 describes only the case of horizontal writing. First, the horizontal / vertical stroke determining unit 81 determines whether the character has a stroke that is nearly horizontal or vertical based on the stroke information of the character held by the character dividing device 23 (step S111). If so, the inclination detecting unit A83 is caused to detect the inclination (step S112), and if not, the threshold value judging unit 82 is compared with the threshold value (step S113). In the inclination detection by the inclination detection unit A83 (step S112), the inclination of the character is detected based on the inclination of the stroke that is nearly horizontal or vertical in the stroke information of the character held by the character dividing device 23. When the inclination is detected, the actual rotation operation is started.
5, for the character of the rotating object, the character division unit 23 by the position information held, obtains the rotating coordinate (step S
114). Then, the character data rotation unit 86 converts the character to be rotated around the rotation coordinates obtained by the rotation coordinate determination unit 85 into the inclination detection unit A83 or the inclination detection unit B84.
The character is rotated according to the inclination obtained in. (Step S115) When the rotation is completed, the end determination unit 87 makes an end determination (Step S117). If not, the process returns to the horizontal / vertical stroke determination section 81 which determines whether the stroke has a horizontal or vertical stroke (step S111). If it is completed, the process is completed.

If it is determined in step S111 that the character does not have a stroke close to horizontal and vertical , the threshold value determining unit 82 determines the lowest point of the stroke from the stroke information of the character held by the character dividing device 23. It is determined whether the distance from the bottom of the rectangle is equal to or less than a certain threshold value or greater (step S113). If it is equal to or greater than a certain threshold value, the termination determination section 87 (step S117) is caused to make a termination determination. If the difference is less than a certain threshold, the inclination detection unit B
84 is detected (step S116), and the inclination detection unit B84 calculates the inclination from the lowest point of the stroke detected by the threshold value judgment unit 82 and the distance from the bottom of the rectangle.
Detect character inclination. Then, based on the detected inclination, the actual rotation operation (Step S114, Step S114)
115), and the same as described above.

With the above, the internal operation of the character inclination adjusting device 71 is completed, and the character data whose inclination has been corrected is transferred to the virtual reference line by the character display position adjusting device 25 in the same manner as in the first embodiment. The display positions are adjusted so that they are aligned, and this is the same as in the first embodiment. When finished, display device 22
Displays a character whose display position has been corrected. FIG. 9B shows a diagram after the display position is corrected, and FIG. 10B shows a diagram with a rectangular frame added for explanation.

As described above, according to this embodiment, the input data is divided into characters and lines, the inclination of the characters is adjusted, and the display position of the characters in the lines is adjusted. A well-designed display can be obtained even for certain handwritten input data . In the present embodiment, two types of detection methods are used in combination to detect the inclination. However, a configuration in which the threshold value determination unit 82 and the inclination detection unit B84 are removed from the configuration of the present embodiment. However, the present embodiment can be sufficiently implemented, and can also be implemented with a configuration excluding the inclination detecting unit A83 from the configuration of the present embodiment.

Next, a third embodiment of the present invention will be described with reference to FIGS. The appearance of the handwritten input data processing device of this embodiment is the same as that of the embodiment shown in FIG. FIG.
2 is a configuration diagram of a handwriting input data processing device according to the present embodiment, and includes a character size adjustment device 121 in addition to the configuration of the first embodiment. Character size adjustment device 121
Is for the character divided by the character dividing device 23,
The size of the character is calculated, and the other characters are scaled up and down to match the size of the peak of the appearance frequency. Here, the size is the length of the longer side of the rectangle circumscribing the character, whichever is longer, and the peak is the size of the character on the horizontal axis and the appearance frequency of the character on the vertical axis for all the characters. In the histogram taken, it indicates a place where a mountain is formed, and when there are a plurality of mountains, each of them becomes a peak. The size of the peak is the size of the character at the vertex at the peak.

Here, when there are two peaks, that is, when there are two peaks, the two peaks are used, and the size of the two peaks is scaled up or down to the appropriate one, thereby aligning the characters. Can be. Further, when there are three or more peaks, the average value of the character sizes of the peaks can be aligned as the only reference character size. For characters that deviate extremely from the peak size,
Do not adjust the font size. Thus, it is possible to cope with a case where a large kanji is written and a small hiragana is written or handwritten input data in which lowercase letters are mixed such as "@".

FIG. 13 is a block diagram showing a detailed configuration of the character size adjusting device 121. The character size adjustment device 121 includes a character size calculation unit 1301, a character size storage unit 1302, a storage end determination unit 1303, a first reference character size setting unit 1304, a second peak detection determination unit 1305,
A third peak detection determination unit 1306, an average character size setting unit 1307, a second reference character size setting unit 1308, a branch value setting unit 1309, a character size threshold value determination unit 1310,
Character size branch value judgment unit 1311, character size change unit 1
312 and an end determination unit 1313.

The character size calculation unit 1301 calculates the size of the longer side of the rectangle circumscribing the character, whichever is longer or shorter, based on the position information of the character held by the character division device 23. The character size storage unit 1302 includes and stores a storage area for storing all the character sizes calculated by the character size calculation unit 1301.

The storage end determination unit 1303 determines whether the processing by the character size calculation unit 1301 and the character size storage unit 1302 has been completed for all the characters held in the character division device 23. I do. If the processing has not been completed, the character size calculation unit 1301 causes the next character to be processed. First reference character size setting unit 1
304 sets the character size of the peak with the first highest peak among the character sizes of the peaks from the histogram of all character sizes stored in the character size storage unit 1302 as the first reference character size.

The second peak detection determination unit 1305 determines whether or not there is a peak having the second highest peak among the peak character sizes from the histograms of all character sizes stored in the character size storage unit 1302. If it is detected and present, the third peak detection / judgment unit 1306 is activated. If it is not present, the character size threshold value judging unit 1310 is activated and the second reference character size setting unit 1308 stores the second reference character size. '0' and the branch value setting unit 13
09 is set to '0' as a branch value.

[0071] The third peak detecting determination unit 1306, the first of the character size as a peak, also detects whether peaks exist in addition to a large peak in the second, if it does not exist, the second reference Activate the character size setting unit 1308,
If there is, the average character size setting unit 1307 is activated. The average character size setting unit 1307 obtains the average value of the character sizes from the character sizes at the peaks,
The first reference character size set by the first reference character size setting unit 1304 is replaced with the obtained average value, and is reset as a new first reference character size.
'0' as the second reference character size in the reference character size setting unit 1308 and '
Set to 0 '.

The second reference character size setting unit 1308 determines the character size of the peak with the second highest peak among the peak character sizes from the histograms of all character sizes stored in the character size storage unit 1302. The value is set as the second reference character size, and the branch value setting unit 1309 is activated. The branch value setting unit 1309 determines the size of the character having the minimum value of the appearance frequency in the range between the first reference character size and the second reference character size, that is, the size of the character at the valley with respect to the peak. , As a branch value.

Character size threshold value judging section 1310 compares the size of the target character with the smaller of the reference character sizes, and if the difference is larger than a predetermined threshold, changes the size of the target character. If the difference is smaller than a predetermined threshold value, the character size branch value judgment unit 1311 is started. The character size branch value determining unit 1311 first compares the size of the target character with the branch value, and if the target character is larger, compares the size of the first reference character size with the size of the second reference character size. If the first reference character size is larger, the character size changing unit 1312 changes the target character to the first reference character size. If the second reference character size is larger, the character size changing unit 1312 changes the target character. Is changed to the second reference character size. Next, the size of the target character is compared with the branch value. If the branch value is larger, the first reference character size and the second reference character size are compared with each other, and the second reference character size is compared with the second reference character size.
If the reference character size is larger, the character size changing unit 1
In step 312, the target character is changed to the first reference character size. If the first reference character size is larger, the character size changing unit 1312 changes the target character to the second reference character size.

The character size changing unit 1312 changes the size of the target character according to the instruction of the character size branch value determining unit 1311 and is set in the first reference character size setting unit 1304 or the second reference character size setting unit 1308. Change the size of the target character based on the size. The character size is changed based on the lower left vertex. End determination unit 1313
Indicates that the processing performed by the character size threshold value determination unit 1310 for all the characters held in the character division device 23
It is determined whether or not the processing has been performed for all the characters. If the processing has not been completed, the character size threshold value determination unit 1310 is made to determine the next character in order to process the next character.

As in the case of the first embodiment, the input device 2
The handwritten data input from 1 is automatically divided into characters and lines by the character dividing device 23 and the line dividing device 24 based on the coordinate information and the sampling time. FIG. 15A shows a diagram in which a rectangular frame is added to explain the editing in which the handwritten input data shown in FIG. 14A is divided into characters and lines. Up to this point, the operation is the same as in the first embodiment.

Based on the divided character data, FIG.
6. The character size adjusting device 121 performs the following operation according to the operation flow shown in FIG. However, FIG. 16, FIG.
No. 7 is described only for the case of horizontal writing. First, the character size calculating unit 1301 calculates the length of the longer or shorter side of the rectangle circumscribing the character as the size from the position information of the character held by the character dividing device 23 (step S1601). Next, the character size storage unit 130
2 stores the character size calculated by the character size calculation unit 1301 (step S1602). Then, the storage end determination unit 1303 determines the character size calculation unit 1301 for all the characters held in the character division device 23,
It is determined whether or not the processing by the character size storage unit 1302 has been completed for all characters. If not, the character size calculation unit 1301 causes the character size calculation unit 1301 to perform processing for the next character. (Step S1603). If the processing has been completed, the first reference character size setting unit 1304 determines the first largest character size among the peak character sizes from the histogram of all character sizes stored in the character size storage unit 1302. Is set as the first reference character size (step S1604). When the first reference character size is set, the second peak detection determination unit 1305 detects whether a second largest peak exists in the peak character size, and if so, the third peak detection determination The unit 1306 is activated, and if it does not exist (in the case of FIG. 18A), the character size threshold value judging unit 1310 is activated, and the second reference character size setting unit 1308 sends “0” as the second reference character size and branches. “0” is set as a branch value in the value setting unit 1309 (step S160)
5).

The third peak detection / judgment unit 1306 started in step S1605 determines that the peaks other than the first and second largest peaks among the character sizes to be the peaks are determined.
Detecting whether the existence, in the absence (in the case of FIG. 18b) activates the second reference character size setting unit 1308,
If it exists (in the case of FIG. 18c), the average character size setting unit 1307 is activated (step S1606). Average character size setting unit 13 activated in step S1606
07 calculates the average of the character sizes from the peak character sizes, and sets the first reference character size setting unit 130.
4. The first reference character size set in step 4 is replaced with the obtained average value and reset as a new first reference character size, and the second reference character size setting unit 1308 sets the second reference character size to '0'. 'And branch value setting unit 13
09 is set to “0” as a branch value (step S16)
07). The second reference character size setting unit 1308 activated in step S1606 uses the histograms of all character sizes stored in the character size storage unit 1302 to determine
The character size of the second largest peak among the peak character sizes is set as the second reference character size, and the branch value setting unit 1309 is activated (step S1608).
The activated branch value setting unit 1309 determines the size of the character having the minimum appearance frequency value in the range between the first reference character size and the second reference character size, that is, the character in the portion that is a valley with respect to the peak. Is set as the branch value,
The character size threshold value judgment unit 1310 is activated (step S1609).

The character size threshold value judging unit 1310 first judges whether or not the second reference character size is 0 (step S1610). If the second reference character size is 0, the first reference character size is determined. If the value obtained by subtracting the target character size from the target character size is larger than the threshold value, the end determination unit 1313 is started without changing the target character size, and the value obtained by subtracting the target character size from the first reference character size is equal to the threshold value. Bigger
If not , the character size branch value determination unit 1311 is activated (step S1614). Also, in step S1610,
If it is determined that the second reference character size is not 0, the first reference character size is compared with the second reference character size (step S1612), and the first reference character size is larger.
If not, the flow proceeds to step S1611. If the first reference character size is larger, it is determined whether a value obtained by subtracting the target character size from the second reference character size is larger than a threshold value (step S1613). if the value obtained by subtracting the target character size from the second reference character size is larger than the threshold value, starts the end determination unit 1313, a value obtained by subtracting the target character size from the second reference character size is I greater than the threshold value
If it is , the character size branch value judgment unit 1311 is activated (step S1614).

The activated character size branch value judgment unit 131
1 first compares the size of the target character with the branch value (step S1617), and if the target character is larger, compares the size of the first reference character size with the size of the second reference character size ( If the first reference character size is larger, the character size changing unit 1312 changes the target character to the first reference character size (step S118).
616) If the second reference character size is larger, the character size changing unit 1312 changes the target character to the second reference character size (step S1617). Next, the size of the target character is compared with the branch value. If the branch value is larger, the character sizes of the first reference character size and the second reference character size are compared (step S1618). 2
If the reference character size is larger, the character size changing unit 1
312 changes the target character to the first reference character size (step S1616). If the first reference character size is larger, the character size changing unit 1312 changes the target character to the second reference character size (step S1617). . When the change of each size is completed, the end determination unit 1
313 is started.

The activated end judging unit 1313 judges whether the processing by the character size threshold judging unit 1310 has been performed for all the characters held in the character dividing device 23 for all the characters. (Step S161
6) If not, the character size threshold value determination unit 1310 is made to determine the next character in order to process the next character (step S1610).

With the above, the internal operation of the character size adjusting device 121 is completed, and the character data whose character size has been corrected is transferred to the virtual reference line by the character display position adjusting device 25 as in the first embodiment. The display positions are adjusted so as to be aligned with each other, and are the same as in the first embodiment below. When finished,
The display device 22 displays the character whose display position has been corrected.

FIG. 14 is a diagram after the display position is corrected.
FIG. 15 (b) is a diagram in which a rectangular frame is added for explanation.
Shown in As described above, according to the present embodiment, the handwritten input data is divided into characters and lines, the size of the characters is adjusted, and the display positions of the characters in the lines are adjusted so that the sizes of the characters in the lines are not equal. An even display can be obtained for such handwritten input data.

In the present embodiment, the first reference character size and the second reference character size are obtained and the size is changed. However, only the first reference character size, that is, 2 peak detection determination unit 1305, third peak detection determination unit 1306, average character size setting unit 1307, second reference character size setting unit 1308, branch value setting unit 130
9. Even with the configuration excluding the character size branch value determination unit 1311, a sufficiently effective implementation can be performed.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. The appearance of the handwritten input data processing device of this embodiment is the same as that of the embodiment shown in FIG. FIG.
9 is a configuration diagram of a handwriting input data processing device according to the present embodiment, which includes a block division device 171 and a line display position adjustment device 172 in addition to the configuration of the first embodiment.

The block dividing device 171 is provided for the line dividing device 2.
This is a block dividing device that divides a set of lines divided in units of lines by 4 into one block. As a method of dividing into blocks, the method of the character dividing device 23 and the line dividing device 24 is applied mutatis mutandis. Further, also the Rukoto holds the position information including the position coordinates of the block. The line display position adjusting device 172 adjusts the display position of the line so that the line spacing becomes equal for the lines in the same block.

FIG. 20 is a block diagram showing a detailed configuration of the line display position adjusting device 172. The line display position adjusting device 172 includes a line spacing detecting unit 181, a line spacing storage unit 182, a storage end determining unit 183, an average line spacing setting unit 184, and a line moving unit 1.
85, an end determination unit 186. Line spacing detector 1
81 detects the line spacing of the first line from the position data of the line dividing device 24 and the block dividing device 171.

The line space storage unit 182 has a storage area for storing, and stores all the line spaces detected by the line space detection unit 181. The storage end determination unit 183 determines whether or not the processing by the line spacing detection unit 181 and the line spacing storage unit 182 has been completed for all the rows held in the row dividing device 24.
If the processing has not been completed, the processing for the next line is performed by the line interval detection unit 181.

The average line spacing setting section 184 stores the line spacing storage section 18
The average line spacing, which is the average value between the lines stored in 2, is obtained. The line moving unit 185 moves the lines based on the average line spacing set by the average line spacing setting unit 184 and the position information of the line dividing device 24 so that the line spacing becomes the average line spacing. The end determination unit 186 determines whether or not the processing by the row moving unit 185 has been completed for all the rows held in the row dividing device 24. If the processing has not been completed, the processing of the next row is performed. Subsequently, the processing of the next line is performed by the line moving unit 185.

The operation of the handwritten input data processing apparatus of the present embodiment configured as described above will be described below. As in the first embodiment, the handwritten data input from the input device 21 is automatically divided into characters, lines, and blocks by the character dividing device 23 and the line dividing device 24 based on the coordinate information and the sampling time. You. FIG. 22A is a diagram in which a rectangular frame is added to explain the editing in which the handwritten input data shown in FIG. 21A is divided into characters and lines. 20
1 is a rectangle circumscribing handwritten input data divided into characters. Reference numeral 202 denotes a rectangle circumscribing the handwritten input data divided into lines. A rectangle 203 is divided into blocks and circumscribes the handwritten input data. A block refers to a block of handwritten input data written continuously. 20
Reference numerals 5 and 206 indicate line spacing. In FIG. 22, the circumscribed rectangle of the line or block is intentionally shown larger than the actual one for convenience of explanation so that the rectangle of the character, line and block can be easily understood. Up to this point, the operation is the same as in the first embodiment.

Based on the divided character data, FIG.
The line display position adjusting device 172 according to the operation flow shown in FIG.
Performs the following operation. However, FIG. 23 illustrates only the case of horizontal writing. First, the line spacing detector 18
1 detects the line spacing of the first line from the position data of the line dividing device 24 and the block dividing device 171 (step S2).
11). Then, the line space storage unit 182 stores the line space detection unit 18.
The line spacing detected in step 1 is stored (step S212).
The storage end determination unit 183 determines whether the processing by the line spacing detection unit 181 and the line spacing storage unit 182 has been completed for all the rows held in the row dividing device 24 (step S213). If the processing has not been completed, the line spacing detection unit 181 performs processing for the next line character (step S21).
1). If the processing has been completed, the average line spacing setting unit 184 is activated. The activated average line spacing setting unit 184 stores the line spacing storage unit 1
The average value between the lines stored in 82 is obtained and set (step S214). When the line spacing average value is set, the line moving unit 185 moves the lines based on the average line spacing set in the average line spacing setting unit 184 and the position information of the line dividing device 24 such that the line spacing becomes the average line spacing ( Step S215).
When the movement of one line is completed, the end determination unit 186 determines whether or not the processing by the line movement unit 185 has been completed for all the characters held in the line dividing device 24 (step S216). If not, the next line is processed by the line moving unit 185 (step S215). If it has been completed, the operation inside the line display position adjusting device 172 has been completed, and the character data belonging to the line whose display position has been adjusted is converted by the character display position adjusting device 25 into the first embodiment. The display position is adjusted so as to be aligned with the virtual reference line as in the example, and the same as in the first embodiment below.

When the processing is completed, the display device 22 displays the character whose display position has been corrected. FIG. 21B shows a diagram after the display position has been corrected, and FIG. 22B shows a diagram with a rectangular frame added for explanation. As described above, according to this embodiment, the handwritten input data is divided into characters, lines, and blocks, and a display can be obtained by adjusting the display position of the characters in the line and the display position of the lines in the block. .

The present invention may be implemented by arbitrarily combining the first to fourth embodiments. For example, combining the second, third, and fourth embodiments,
Adjust the inclination of the characters in the handwritten data, adjust the size,
It may have a function of adjusting the display position of a character in a line and adjusting the display position of a line in a block. In addition,
In the third embodiment, other characters are enlarged or reduced to the peak character size. However, the size of the other characters is not necessarily limited to the peak character size. It is assumed that the font size may be used.

[0093]

As described above, according to the present invention,
By dividing the handwritten data into characters and lines and adjusting the disorder of the arrangement of the characters in the lines, there is an effect that an ordered display can be obtained. Further, by adjusting the inclination of the characters of the handwritten data, there is an effect that an ordered display can be obtained.

Further, by making the size of the characters of the handwritten data in the line uniform, it is possible to obtain a uniform display. In addition, handwritten data is converted to characters,
By dividing into lines and blocks, adjusting the display position of the characters in the line, and adjusting the display position of the lines in the block,
There is an effect that an ordered display can be obtained.

[Brief description of the drawings]

FIG. 1 is an external view of a handwritten input data processing device according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of a handwriting input data processing device according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing a detailed configuration of a character display position device in the handwriting input data processing device according to the first embodiment of the present invention.

FIG. 4A shows an unprocessed handwriting in the case of a horizontal writing handwriting input by handwriting from the input device 21; (b) shows the result in the case of the horizontally written handwriting processed by the present invention on the display device 22. (c)
Is an unprocessed handwriting in the case of a vertical writing handwriting input by handwriting from the input device 21. (d) shows the result in the case of the vertically written handwriting processed by the present invention on the display device 22.

FIG. 5 is a diagram in which a rectangular frame is added for the purpose of specifically illustrating the division into characters and lines and the character arrangement in FIG. 4 for easy understanding. (a) is an unprocessed handwriting in the case of a horizontal writing handwriting input by handwriting from the input device 21. (b) shows the result in the case of the horizontally written handwriting processed by the present invention on the display device 22. (c) is an unprocessed handwriting in the case of a vertical writing handwriting input by handwriting from the input device 21.
(d) shows the result in the case of the vertically written handwriting processed by the present invention on the display device 22.

FIG. 6 is an operation flowchart of the character display position device in the handwriting input data processing device of the first embodiment of the present invention.

FIG. 7 is a configuration diagram of a handwritten input data processing device according to a second embodiment of the present invention.

FIG. 8 is a block diagram showing a detailed configuration of a character inclination adjusting device in a handwriting input data processing device according to a second embodiment of the present invention.

FIG. 9A shows an unprocessed handwriting input by handwriting from the input device 21. (b) shows the result processed by the present invention on the display device 22.

FIG. 10 is a diagram in which a rectangular frame is added for the purpose of specifically illustrating the division into characters and lines and the character arrangement in FIG. 9 for easy understanding. (a) is an unprocessed handwriting input by handwriting from the input device 21. (b)
Is a display of the result processed by the present invention on the display device 22.

FIG. 11 is an operation flowchart of the character inclination adjusting device in the handwritten input data processing device according to the second embodiment of the present invention.

FIG. 12 is a configuration diagram of a handwritten input data processing device according to a third embodiment of the present invention.

FIG. 13 is a block diagram showing a detailed configuration of a character size adjusting device in a handwriting input data processing device according to a third embodiment of the present invention.

FIG. 14A shows an unprocessed handwriting input by handwriting from the input device 21. (b) shows the result processed by the present invention on the display device 22.

FIG. 15 is a diagram in which a rectangular frame is added for the sake of explanation in which the division into characters and lines and the character arrangement in FIG. 14 are specifically shown for easy understanding. (a) is an unprocessed handwriting input by handwriting from the input device 21.
(b) shows the result of processing according to the present invention on the display device 2.
2 is displayed.

FIG. 16 is an operation flowchart of the character size adjusting device in the handwritten input data processing device according to the third embodiment of the present invention.

FIG. 17 is a continuation of the operation flowchart of the character size adjusting device in the handwriting input data processing device of the third embodiment of the present invention.

FIG. 18 is a histogram of a character size and an appearance frequency.

FIG. 19 is a configuration diagram of a handwritten input data processing device according to a fourth embodiment of the present invention.

FIG. 20 is a block diagram showing a detailed configuration of a line display position adjusting device in a handwritten input data processing device according to a fourth embodiment of the present invention.

FIG. 21 (a) is an unprocessed handwriting input by handwriting from the input device 21. (b) shows the result processed by the present invention on the display device 22.

FIG. 22 is a diagram in which a rectangular frame is added for the sake of explanation in which the division into characters and lines and the character arrangement in FIG. 19 are specifically shown for easy understanding. (a) is an unprocessed handwriting input by handwriting from the input device 21.
(b) shows the result of processing according to the present invention on the display device 2.
2 is displayed.

FIG. 23 is an operation flowchart of the line display position adjusting device in the handwritten input data processing device according to the fourth embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 handwriting input data processing device 12 input pen 21 input device 22 display device 23 character dividing device 24 line dividing device 25 character display position adjusting device 31 virtual reference line setting unit 32 shift detecting unit 33 movement determining unit 34 character data moving unit 35 End determination unit 71 character inclination adjustment unit 81 horizontal / vertical stroke determination unit 82 threshold value determination unit 83 inclination detection unit A 84 inclination detection unit B 85 rotation coordinate determination unit 86 character data rotation unit 87 end determination unit 121 character size adjustment device 1301 character size calculation unit 1302 character size storage unit 1303 storage end determination unit 1304 first reference character size setting unit 1305 second peak detection determination unit 1306 third peak detection determination unit 1307 average character size setting unit 1308 second reference character size setting Section 1309 Branch value setting section 1310 Statement Character size threshold value determining unit 1311 Character size branch value determining unit 1312 Character size changing unit 1313 End determining unit 171 Block dividing device 172 Line display position adjusting device 181 Line spacing detecting unit 182 Line spacing storage unit 183 Storage end determining unit 184 Average line spacing setting Part 185 line moving part 186 end judgment part

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-5-282128 (JP, A) JP-A-4-241074 (JP, A) JP-A-3-278186 (JP, A) JP-A-1- 98091 (JP, A) JP-A-57-161894 (JP, A) JP-A-62-175886 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06F 3/08 G06K 9 / 00-9/82 G06T 1/00 G06T 11/60

Claims (7)

(57) [Claims] 1. A handwriting input data processing device for processing handwritten input data represented by stroke information given by a series of coordinates, wherein the handwritten input data is divided into character units and the strokes constituting the characters are surrounded. Character storage means for storing character information indicating a minimum rectangle, and line storage means for storing line information indicating the minimum rectangle surrounding the rectangles of the characters constituting the line and the handwritten input data divided on a line-by-line basis; Character position adjusting means for adjusting character information based on the line information to adjust the order of characters in the line, wherein the character position adjusting means sets a reference line for adjusting the divided characters as a line. A reference line setting means for setting based on line information; a deviation detecting means for detecting a deviation between a reference line and a character position for each character in the line; Movement determining means for determining whether or not the movement is based on whether or not the shift is greater than or equal to a predetermined threshold value; and character moving means for shifting the character determined to be moved by the amount of the shift. Input data processing device. 2. Stroke information given by a series of coordinates
Handwritten input data that processes handwritten input data represented by
A handwriting input device which is divided into character units and the characters
Character information indicating the smallest rectangle surrounding the stroke to be formed.
Character storage means for storing, and the inclination of the character based on the character information of the character storage means.
Character tilt that detects and rotates characters according to the tilt to align the tilt
And a come adjusting means, the character inclination adjustment means, character, determines the horizontal and vertical stroke determination means for determining whether it has a stroke nearly horizontal and vertical, and have a stroke nearly horizontal and vertical And a character rotation means for correcting the inclination by rotating the character in accordance with the inclination detected by the inclination detection means. A handwriting input data processing device comprising: 3. Stroke information given by a series of coordinates
Handwritten input data that processes handwritten input data represented by
A handwriting input device which is divided into character units and the characters
Character information indicating the smallest rectangle surrounding the stroke to be formed.
Character storage means for storing, and the inclination of the character based on the character information of the character storage means.
Character tilt that detects and rotates characters according to the tilt to align the tilt
And a come adjusting means, the character inclination adjustment means, characters, it is determined with horizontal and vertical stroke determination means for determining whether it has a stroke nearly horizontal and vertical, and do not have a horizontal and vertical stroke In this case, from the stroke information, a point on the stroke that is not on the base of the rectangle but on the bottom and a distance from the base of the rectangle is detected, and whether the distance is equal to or less than a predetermined threshold or greater than the threshold is determined. and threshold determining means for determining, when the distance is determined to below a predetermined threshold, the inclination detecting means for detecting an inclination of the character by the distance, depending on the inclination detected by the inclination detection means And a character rotating means for correcting a tilt by rotating the character. 4. Stroke information given by a series of coordinates
Handwritten input data that processes handwritten input data represented by
A handwriting input device which is divided into character units and the characters
Character information indicating the smallest rectangle surrounding the stroke to be formed.
Character storage means for storing, and the inclination of the character based on the character information of the character storage means.
Character tilt that detects and rotates characters according to the tilt to align the tilt
And a come adjusting means, the character inclination adjustment means, character, determines the horizontal and vertical stroke determination means for determining whether it has a stroke nearly horizontal and vertical, and have a stroke nearly horizontal and vertical The first inclination detecting means for detecting the inclination of the character by a stroke close to the horizontal and the vertical, and when it is determined that the character does not have the horizontal and the vertical stroke, the stroke information is used to determine a point on the stroke. A threshold judging means for detecting a distance from the point closest to the base, not on the base of the rectangle, and the base of the rectangle, and judging whether the distance is equal to or smaller than a predetermined threshold, or larger than the threshold; If it is determined that the distance is equal to or less than a predetermined threshold value, the second inclination detecting means for detecting the inclination of the character based on the distance, and one of the first inclination detecting means and the second inclination detecting means. Has been in accordance with the inclination, the handwriting input data processing apparatus characterized by comprising a character rotating means for correcting the tilt by rotating the characters. 5. Stroke information given by a series of coordinates
Handwritten input data that processes handwritten input data represented by
A handwriting input device which is divided into character units and the characters
Character information indicating the smallest rectangle surrounding the stroke to be formed.
A character storage unit for憶, based on the character information of the character storage means, character size
Character size that detects and adjusts for irregular character sizes
Adjusting means, wherein the character size adjusting means calculates a total character size from the character information of the character storage means; and a histogram of all character sizes calculated by the character size calculating means. A reference character size setting means for setting a reference character size; comparing the reference character size with the size of the character to be changed; if the difference is larger than a predetermined threshold, the character size to be changed Character size change determining means for determining exclusion; and changing the character size to a reference character size set by the reference character size setting means for characters not excluded by the character size change determining means. A handwriting input data processing device comprising: character size changing means; 6. Stroke information given by a series of coordinates
Handwritten input data that processes handwritten input data represented by
A handwriting input device which is divided into character units and the characters
Character information indicating the smallest rectangle surrounding the stroke to be formed.
A character storage unit for憶, based on the character information of the character storage means, character size
Character size that detects and adjusts for irregular character sizes
Adjusting means, wherein the character size adjusting means calculates all character sizes from the character information in the character storage means, and a histogram of all character sizes calculated by the character size calculating means. First reference character size setting means for setting a first peak character size as a first reference character size; and a peak character size in a histogram of all character sizes calculated by the character size calculation means. A peak determining means for determining whether there is only one or two or more than one reference character size; and when the peak determining means determines that there is only one peak character size, It becomes the second peak in the histogram of all character sizes calculated by the character size calculation means. A second reference character size setting unit that sets a character size as a second reference character size; and a case where the peak determination unit determines that two or more peak character sizes other than the first reference character size exist. A third reference character size setting unit configured to set an average value of the two or more character sizes and the first reference character size as a third reference character size; Branch value setting means for setting a branch value which is a size of a character having a minimum appearance frequency in a range between the first reference character size and the second reference character size; Character size change determining means for comparing the size of the character to be changed and, if the difference is greater than a predetermined threshold value, determining that the character is to be excluded from the target for changing the size When the second reference character size is set, the character size change determination means compares the size of the character and the branch value with respect to a character that has not been excluded from the target of changing the character size. A character size branch value determining unit for determining which of the first reference character size and the second reference character size to change, and a character size branch value determining unit when the second reference character size is set. When the third reference character size is set to the character size determined by the above, the third reference character size is set. When neither the second reference character size nor the third reference character size is set, the first reference character size is set. And a character size changing means for changing the size of the character. 7. A handwriting input data processing device for processing handwritten input data represented by stroke information given by a series of coordinates, wherein the handwriting input data is divided into character units and the strokes constituting the characters are surrounded. Character storage means for storing character information indicating a minimum rectangle, and line storage means for storing line information indicating the minimum rectangle surrounding the rectangles of the characters constituting the line and the handwritten input data divided on a line-by-line basis; A block consisting of a series of lines, a block storage means for storing block position information indicating the position information, and detecting the inclination of the character based on the character information and stroke information of the character storage means, Character inclination adjusting means for rotating and adjusting the inclination, and, after the inclination adjustment, calculating all character sizes based on the character information in the character storage means, Character size adjusting means for adjusting the irregularity of the character size based on the frequency distribution of the character size, and a reference line for adjusting the divided characters as lines after the character size adjustment is set based on the line information. Then, for each character in the line, a shift between the reference line and the character position is detected, and for each character in the line, it is determined whether the shift is greater than a predetermined threshold or not and whether or not to move. A character position adjusting unit that moves a character determined to be moved by an amount corresponding to a shift; and after the character position adjustment, for all lines included in the block indicated by the block position information, all line spacings are determined based on the line information. A handwriting input data processing device, comprising: a line position adjusting unit that detects and adjusts an irregularity between lines.