JPH0696281A - Method and device for processing information - Google Patents

Abstract

PURPOSE:To avoid a useless time by displaying an instructed partial stroke at a speed being different from that of other stroke, when a user instructs of a part of a character pattern. CONSTITUTION:A display part 8 is a liquid crystal display of a dot matrix, are when writing is executed on a display with a pen, a coordinate input part 1 detects an input coordinate, and a processing part 9 executes a processing and displays it on the display part 8. In such a state, a character stroke designating part 4 selects a partial character stroke of a handwritten character surrounded by a gesture, and a display speed setting part 5 sets a display speed to each of the stroke selected by the designating part 4, and other stroke. By a writing plotting part 6, with respect to the stroke designated by a user, only the part in which the user desires to confirm the writing order is displayed slowly by varying a value of time, and the stroke to which it is unnecessary to confirm the writing order, is plotted roughly instantaneously.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing method and apparatus capable of sequentially displaying stored character strokes in a stroke order.

[0002]

2. Description of the Related Art For example, in an online character recognition device, in order for a user to confirm what kind of handwriting the character stroke information registered in the recognition dictionary is based on, the character stroke data in the recognition dictionary is used. There was one that reproduced the handwriting by drawing in sequence.

[0003]

However, in the above conventional example, since all strokes forming a character are drawn at a constant speed, it takes time for a character having a large number of strokes, and it is desired to confirm only a part of the character. There is a drawback that the user wastes time.

[0004]

In order to solve the above problems, the present invention displays pattern information, selects a part of the displayed pattern information, and selects the selected part of the pattern information. (EN) An information processing method and apparatus for setting a display speed, setting a speed for displaying pattern information excluding the selected part, and controlling the pattern information to be displayed at each of the set speeds.

In order to solve the above problems, the present invention preferably sets the pattern information to a plurality of stroke information.

In order to solve the above problems, in the present invention, preferably, the pattern information is character information.

[0007]

【Example】

(Embodiment 1) Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 15 is a schematic configuration diagram showing the configuration of an information processing apparatus according to an embodiment of the present invention, which is common to the first and second embodiments. In the figure, reference numeral 41 denotes a CPU that controls the entire apparatus, and performs various processes according to a program stored in the ROM 42. Reference numeral 42 is a ROM that stores a control program, an error processing program, a program that operates according to a flowchart described later, and the like. A RAM 43 is used as a work area for various programs and a temporary save area for error processing. In the RAM 43, a dictionary used for recognition described later, a user dictionary 106, a user name index file 107, a character type file 108, a character standard stroke number database 109,
Various databases are stored. Reference numeral 44 denotes a coordinate input unit that includes a transparent coordinate input plate (not shown) and a pen (not shown) that indicates the position of the coordinate point with respect to the coordinate input plate. The method using ultrasonic vibration shall be used. Reference numeral 45 has a memory, which corresponds to the coordinate points of the coordinate input plate (not shown) in a one-to-one correspondence, and stores bit information of the coordinate points input by the coordinate input plate or bit information of dots calculated based on the coordinate points described later. It is a VIDEO RAM (hereinafter referred to as “VRAM”) to be stored. A display unit 46 displays a bit image based on the bit information stored in the VRAM 5, and an LCD is used for the display unit 46. For example, a display system using an EL element or a CRT may be used. .
Various windows described later are displayed on the display unit 46.

In the present embodiment, an online character recognition device will be taken as an example to explain a user registration function that allows a user to register his or her own handwriting in a dictionary.

FIG. 13 is a block diagram of a user registration application configuration for implementing the present invention. 21-26
Each of the parts is a part in charge of a user registration function element in online character recognition, and is composed of a window application execution part (21 to 25) by a GUI (graphical user interface) and a dictionary part (106).

A list of registered users is displayed on the initial screen section 24, and the owner of the currently set user dictionary can be confirmed. Other functions include both instruction functions for newly registering a user and for editing registered characters in the user dictionary. The new user registration unit 25 is a place for registering the new user. 26
The user dictionary editing unit can display characters in the user dictionary as a list, and can instruct each character to be deleted or handwritten. It also includes an instruction function for newly registering characters written by the user. The new character registration unit 21 is a place where the character registration designated by the user dictionary editing unit 26 is performed. The handwritten character reproduction unit 22 is a place where the registered characters designated by the user dictionary editing unit 26 are reproduced and drawn in the order of handwriting. The user dictionary unit 23 is a place for storing registered character information in order to realize these functions. Here, a plurality of users own different user dictionaries.

FIG. 14 is a window state transition diagram of the user registration application. Each part of 201 to 205 represents a window that executes the function of FIG. 13, and a display example of each window will be described later, but is displayed on the display part. Two
The 06 system is a system where control is returned when the user registration application is terminated. The arrows in the figure show the flow of processing by control commands input by button control in each window. The flow and transition of windows will be described below with reference to FIG.

When the "new user registration" command is instructed on the new screen section 201, the new user registration screen section 202 newly appears in the form of a pop-up window. When the "registration &end" command is instructed on the new user registration screen section 202, this pop-up window is erased and the control returns to the new screen section 201 again. When the "edit user dictionary" command is instructed on the new screen section 201, the new screen section 201 is erased and a new user dictionary edit section 203 appears. If the "new character registration" command is instructed here, the new character registration screen section 204 appears in the form of a pop-up window. The character registration operation in this window can be repeatedly executed unless the "end" command is instructed. After the characters have been registered, when "end" is instructed, the new character registration screen section 204 is erased, and the control shifts to the user dictionary edit screen section 203. The "delete character" command on the user dictionary edit screen section 203 can also be executed multiple times. When the "handwriting reproduction" command is further instructed, the handwritten character reproduction unit 205 appears in the form of a pop-up window. Reproduction is started at the same time as the window is displayed, and it is possible to repeatedly display it by the "refresh" command. The "end" command closes the handwritten character reproduction section window and returns control to the user dictionary edit screen section. When the "end" command is instructed on the user dictionary edit screen section 203, the window of its own is deleted and the new screen 201 is displayed again. Therefore, the user registration application can be terminated only in the initial screen portion 201.
Only when the "end" command is instructed in.

As described above, the number of windows related to this user registration application is determined by the screen section 202/20.
When the 4.205 pop-up window is displayed, the number is two, and when the 201 or 203 window is displayed, the number is one.

FIG. 1 shows a block diagram of a handwriting display device according to the first embodiment of the present invention.

The display unit 8 is a dot-matrix liquid crystal display, and by writing on the display with a pen, the coordinate input unit 1 detects the input coordinates, and the processing unit 9 performs processing and displays it on the display unit 8. .

Examples of screens displayed on the display unit 8 are shown in FIGS. 2, 3 and 4.

The screen is created by the screen management unit 7,
Is displayed.

FIG. 2 is a screen for the user to newly register a handwriting by the new character registration unit 21, which corresponds to 204 in FIG.

On the new character registration screen 10, by writing a character on the handwriting input area 11 with the pen 17, the coordinate input unit 1 detects the input coordinates, and the input analysis unit 2 inputs the character to the handwriting input area 11. It analyzes that there is and stores the handwriting data in the handwriting data storage unit 3. The handwriting data is composed of coordinate values forming the handwriting, a code indicating the end of each stroke, and a code indicating the end of all strokes.

By selecting one of the characters displayed in the character selection area 13 with the pen and pointing the registration key 14, the character and the handwriting data are associated with each other and registered in the user dictionary 23.

FIG. 3 is a screen for redisplaying the handwriting registered by the user by the handwritten character reproducing unit 22 instructed in the user dictionary editing screen unit 203, which corresponds to 205 in FIG.

The handwriting drawing unit 6 is based on the handwriting data stored in the handwriting data storage unit 3 and is based on the handwriting display area 1
Draw handwriting on 5.

This operation will be described with reference to the flowchart of FIG.

In step S1, if a code indicating the end of all strokes is detected from the handwriting data, the process ends, and if not, the subsequent operation is performed.

In step S2, one coordinate point is read from the handwriting data and set in the variable P ₁ .

In step S3, values are set in variables T _D and T _U representing time.

In step S4, if a code indicating the end of one stroke is detected from the handwriting data, the process proceeds to step S9, and if not, the subsequent operation is performed.

In step S5, one coordinate point is read from the handwriting data and set in the variable P ₂ .

In step S6, the coordinate points P ₁ and P ₂ are connected by a straight line. Handwriting drawing unit 6 to screen management unit 7
A drawing command is sent to and displayed on the display unit 8.

In step S7, the value of the variable P ₂ is substituted for the variable P ₁ .

In step S8, the speed for displaying the stroke is adjusted, and the process waits for time T _D before returning to step S4.

In step S9, the time T _{U is} waited for in order to adjust the time between strokes.
Return to step S1.

By the above operation, the handwriting is displayed in the handwriting display area 15.

Here, if the times T _D and T _U have constant values, the characters are displayed at a constant speed, but in this embodiment,
For the stroke specified by the user, the times T _D and T _U
By changing the value of, only the part where the user wants to confirm the stroke order is slowly displayed.

The redisplay of the designated portion when the user designates the portion whose stroke order is desired to be confirmed will be described below.

As shown in FIG. 4, the handwriting display area 15
When a trajectory such as 18 is input with the pen 17, the command is recognized as a command having the meaning of stroke selection. The locus that becomes a command in this way is called a gesture. The input analysis unit 2 determines the meaning and attribute as a command from the position and shape of the gesture.

The character stroke designating section 4 selects a partial character stroke of the handwritten character 15 surrounded by the gesture 18. The display speed setting unit 5 includes a stroke selected by the character stroke designating unit 4,
A display speed is set for each of the other strokes.

By the stroke selection gesture,
The operation of setting the drawing speed of each stroke and drawing will be described in detail with reference to the flowchart of FIG.

In step S11, the coordinate input unit 1
The gesture input is detected by the redisplay key 16
Is activated, the following operation is started.

In step S12, the input analysis unit 2
Analyze the meaning of gestures. It is checked whether or not each character stroke formed by the coordinate sequence stored in the handwriting data storage unit 3 is surrounded by the gesture. This determination method will be described later with reference to FIG.

In step S13, the character stroke designating unit 4 obtains the minimum value m and the maximum value n of the stroke numbers among the character strokes surrounded by the gesture. The stroke number is k in the kth stroke. For example, if there are eight strokes, strokes with stroke numbers 1 to 8 are present.
If the strokes of the fifth, sixth, and seventh strokes are surrounded by gestures, the minimum value m is 3 and the maximum value n is 7.

In step S14, the handwriting drawing unit 6
Thus, the first stroke to the (m−1) th stroke are drawn at high speed. The display speed setting unit 5 sets the times T _D and T _U to predetermined values T _D1 and T _U1 , respectively, so that high-speed drawing is performed.

In step S15, the handwriting drawing unit 6
Thus, the mth to nth strokes are drawn at low speed. The display speed setting unit 5 sets the times T _D and T _U to predetermined values T _D2 and T _U2 , respectively, to thereby draw at a low speed. However, T _D2 > T _D1 and T _U2 > T _U1 .

In step S16, the handwriting drawing unit 6
Thus, the (n + 1) th image to the final image are drawn at high speed.

The method of determining whether or not each character stroke is surrounded by a gesture in step S12 will be described in detail.

First, pay attention to one of the points that make up the character stroke.

A method for checking whether or not the point of interest is surrounded by gestures will be described with reference to the flowchart of FIG.

In step S21, the flags f ₁ ,
Clear f ₂ , f ₃ , and f ₄ , respectively.

At step S22, attention is paid to the start point of the gesture.

In step S23, when the point of interest of the character stroke is the origin, the quadrant of the point of interest of the gesture is examined. For convenience, the coordinate axes are also included in one of the quadrants. Set the coordinates of the point of interest of the character stroke to (X
_S , Y _S ), the coordinates of the focus point of the gesture are (X _G , Y _G ).
Then, if X _G ≧ X _S and Y _G ≧ Y _S , then the first quadrant,
If X _G <X _S and Y _G ≧ Y _S , the second quadrant; if X _G <X _S and Y _G <Y _S , the third quadrant; and if X _G ≧ X _S and Y _G <Y _S It is the fourth quadrant. When in the Qth quadrant, the flag f _Q
Set. (Q = 1, 2, 3, 4)

In step S24, the flags f ₁ ,
If f _2, f _3, f ₄ is long as it is all set, the process proceeds to step S25, the process proceeds to step S26 otherwise.

In step S25, it is determined that the point of interest of the character stroke is in a gesture.
finish.

In step S26, if the point of interest of the gesture is the end point, the process proceeds to step S27, and if not, the process proceeds to step S28.

In step S27, it is determined that the point of interest of the character stroke is not surrounded by the gesture,
finish.

In step S28, attention is paid to the next point of the gesture, and the process returns to step S23.

FIG. 8 shows an example in which the point of interest of the character stroke is surrounded by a gesture, and FIG. 9 shows an example of the case in which the point of interest of the character stroke is not surrounded by the gesture.

The above determination is performed while paying attention to each point constituting the character stroke, and if any one of the target points of the character stroke is surrounded by the gesture, the character stroke is considered to be surrounded by the gesture.

In addition to the functions described above, the time T _D1 , T _U1 , T
By adding the function of changing the values of _D2 and T _U2 , the handwriting can be confirmed at the speed desired by the user. For example, by setting T _D1 and T _U1 to 0, strokes that do not require confirmation of the stroke order can be drawn almost instantly, and no time is wasted.

Further, if only the selected stroke is specifically required, the display color of the selected stroke can be changed or only the selected stroke can be displayed.

In this embodiment, when the handwritings are redisplayed according to the stroke order, it is possible to specify the portion whose stroke order is to be confirmed by a simple operation.

(Embodiment 2) FIG. 10 is a view showing a type display area 12 of the handwriting display device of FIG.

The present embodiment relates to a device for displaying the printed characters in the correct stroke order.

In FIG. 10, the character "surprise" is displayed in the type display area 12 and is divided into four partial patterns 101 to 104.

As shown in FIG. 11, the partial pattern 101
Is from the 1st to 3rd stroke, the partial pattern 102 is from the 4th to 8th stroke, and the partial pattern 103 is from the 9th to 12th stroke.
Up to the stroke, the partial pattern 10 is the 13th to 22nd strokes. Further, FIG. 11 shows the positions of the left end, the right end, the upper end, and the lower end of each partial pattern. This is 0 to 15 by dividing the print type display area into 16 equal parts vertically and horizontally.
It is expressed by the numerical value of.

The number and positions of the partial patterns differ depending on the characters to be displayed, and a numerical value is stored for each character as in FIG.

In this embodiment, by drawing a gesture with the pen 17 on the partial pattern of the type display area 12, only the partial pattern through which the pen has passed is displayed slowly.
Other partial patterns are displayed faster.

The operation of this embodiment will be described with reference to the flowchart of FIG.

At step S31, the first partial pattern is first noted.

In step S32, it is checked whether or not the gesture has passed over the partial pattern of interest. If even one of the coordinates forming the gesture is between the left end and the right end and between the lower end and the upper end of FIG. 10, it is considered that the gesture has passed over the partial pattern. If it has passed, the process proceeds to step S33, and if not, the process proceeds to step S34.

In step S33, the strokes forming the partial pattern are displayed at low speed.

In step S34, each stroke forming the partial pattern is displayed at high speed.

In step S35, if the pattern is the final partial pattern, the process ends.

In step S36, attention is paid to the next partial pattern, and the process returns to step S32.

Usually, it is often desired to know the stroke order for a certain partial pattern. Therefore, in the present embodiment, when redisplaying the print characters in the stroke order, by storing the positional information of the partial pattern for each character in advance, it is possible to specify the portion whose stroke order is to be confirmed with a simpler operation. it can.

[0076]

As described above, in the displayed character pattern, when a part of the character pattern is instructed by the user, the instructed partial stroke is controlled to be displayed at a speed different from that of other strokes. ,
There is an effect that the portion of the character stroke that the user wants to check can be viewed in a concentrated manner, and that no unnecessary time is spent.

Further, there is an effect that the stroke can be easily selected.

[Brief description of drawings]

FIG. 1 is a block diagram of a handwriting display device according to a first embodiment of the present invention.

FIG. 2 is a diagram of a screen for a user to newly register a handwriting

FIG. 3 is a diagram of a screen for redisplaying the handwriting registered by the user.

FIG. 4 is a diagram in which a gesture is drawn on the screen of FIG. 3 with a pen.

FIG. 5 is a flowchart showing an operation of displaying handwriting.

FIG. 6 is a flowchart showing an operation of selecting a stroke and changing a drawing speed.

FIG. 7 is a flowchart showing a method for determining whether or not a point of interest of a character stroke is surrounded by a gesture.

FIG. 8 is an example in which the point of interest of a character stroke is surrounded by a gesture.

FIG. 9 shows an example in which the point of interest of a character stroke is not surrounded by a gesture.

FIG. 10 is a diagram showing each partial pattern of the character “amazing” on the type display area.

FIG. 11 is a diagram showing stroke numbers and position information of each partial pattern of the character “amazing”.

FIG. 12 is a flowchart showing the operation of the second exemplary embodiment of the present invention.

FIG. 13 is a block diagram of a user registration device.

FIG. 14: Window state transition diagram

FIG. 15 is a block diagram showing the configuration of an information processing device.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takashi Harada 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Katsuhiko Sakaguchi 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Incorporated (72) Inventor Shigeki Mori 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inhibitor Hiroto Yoshii 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (6)

[Claims] 1. Pattern information is displayed, a part of the displayed pattern information is selected, a speed at which the selected part of the pattern information is displayed is set, and a pattern excluding the selected part is selected. An information processing method comprising: setting a speed at which information is displayed, and controlling the pattern information to be displayed at each of the set speeds. 2. The information processing method according to claim 1, wherein the pattern information includes a plurality of stroke information. 3. The information processing method according to claim 1, wherein the pattern information is character information. 4. Display means for displaying pattern information, selecting means for selecting a part of the displayed pattern information, and first speed setting for setting a speed for displaying the selected part of the pattern information. Means, second speed setting means for setting a speed for displaying the pattern information excluding the selected part, and control means for controlling to display the pattern information at each of the set speeds. A characteristic information processing device. 5. The information processing apparatus according to claim 4, wherein the pattern information includes a plurality of stroke information. 6. The information processing apparatus according to claim 4, wherein the pattern information is character information.