JP2007219794A - Stylus figure recognition method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stylus figure recognition method capable of narrowing down numbers of figures, and the like, to be recognized depending on a position touched by a player with a pen at first, and making input operation efficient and reducing false recognition. <P>SOLUTION: When a stylus pen 6 contacts to a liquid crystal touch screen 2 in a state where the input button of a button part 4 is held down, an area where candidates, such as the figures to be drawn, are classified depending on the contact position, is judged. Then, the figures, and the like, are recognized from the candidates in the area by drawing the figure, and the like. Because candidates, such as the figure, can be narrowed down only by touching with the stylus pen, the input operation steps are reduced, recognition processing is enhanced compared with the conventional one, and incorrect recognition is also reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a stylus graphic recognition method for recognizing the shape of a figure, a character, or a code (these are referred to as “figure etc.”) input by an input means such as a stylus pen. The present invention relates to a stylus figure recognition method that can be suitably used for a game machine that recognizes an input operation and activates the recognized magic.

  Conventional graphic recognition extracts the feature from the stroke of the pen and converts it to the corresponding graphic or the like. However, if there are many candidates for the figure to be recognized, it may be erroneously recognized as an unintended figure, etc., so that a conventional recognition device for a figure or the like by pen input determines the type of figure to be recognized by the user in advance. A method of narrowing down candidates in advance by a method of specifying or a method of narrowing down recognition candidates according to the type of drawing has been taken.

Patent Document 1 proposes a method of narrowing down recognition candidates according to the type of drawing.
This is because the user selects the figure recognition characteristic parameter corresponding to the recognition switching button from the figure recognition characteristic parameters prepared for each drawing type in the recognition parameter table by operating the recognition switching button, and uses it in this state. A person writes a figure on the coordinate plane of the position input device using a stylus pen. The written coordinate value series is acquired by the input control unit and stored in the position data buffer. When one stroke is input to this buffer, the recognition processing unit converts the coordinate value series in the buffer to the graphic recognition characteristic parameter. And the figure represented by the coordinate value series is recognized.

The prior art described above requires a button operation for the user to specify a figure type in advance or select a drawing type, resulting in a reduction in work efficiency.
JP-A-7-182454

  The present invention has been made in view of the above circumstances, and its purpose is to narrow down the number of figures and the like to be recognized according to the position where the player first touched with the pen, thereby improving the efficiency of the input operation and reducing misrecognition. It is to provide a stylus figure recognition method capable of

In order to achieve the above object, claim 1 of the present invention provides a stylus graphic recognition method in which an input operation is performed by drawing a figure, a character, or a figure as a sign by touching a tablet screen with an input means such as a pen or a finger. The tablet screen is divided into a plurality of areas, and a contact position detecting means for detecting which divided area of the divided tablet screen is touched by the input means; and which of the divided areas of the tablet screen is the input means. A figure etc. is classified according to whether it is drawn in contact with the position first, a table for storing the classified figure etc. separately in the classification area, and processing corresponding to the figure etc. recognized in the table are executed. Processing execution means, and depending on the drawing start position of the input means on the tablet screen, the figure or the like started to be drawn is classified in the table. Refine One region, and recognizes the figure or the like in a narrowed region.
According to a second aspect of the present invention, the divided doublet screen according to the first aspect of the present invention is divided into an upper left area, an upper right area, and a lower area.
According to a third aspect of the present invention, in the first or second aspect of the present invention, the stylus graphic recognition method is applied to a game machine, and the table is used for various magics that activate a large number of figures and the like in the game. It is a magic recognition table associated with.

According to the above configuration, by including the process of narrowing down candidates for a figure to be recognized in the operation of drawing the figure, the action for input required by the user is reduced by one step, and the input operation is simplified. realizable.
Also, since the input is simple and there are few malfunctions, the effect is significant in an action game that requires quick command input.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view showing an appearance of a game machine to which a stylus graphic recognition system according to the present invention is applied.
The game machine 1 has a liquid crystal touch screen 2 which is a tablet screen on the upper surface, a game screen is displayed on the liquid crystal touch screen 2 and a figure or the like can be input with the stylus pen 6. When the player draws a figure, a character, a code, or the like with the stylus pen 6, the figure, the character, the code is recognized by the recognition processing unit, and an input operation can be performed on the game machine 1. The input can be performed with a finger in addition to the stylus pen.
A cross key 3 and a button unit 4 are provided on both sides of the liquid crystal touch screen 2, and input by key buttons is also possible.

FIG. 2 is a circuit diagram showing an embodiment of a circuit of a game machine to which the stylus graphic recognition system according to the present invention is applied.
This embodiment describes only the part directly related to the present invention.
A liquid crystal touch screen 15 is connected to the CPU 10 via an image processing unit 14 and an input processing unit 16, and a key operation unit 17 including a cross key 3 and a button unit 4 is connected to the input processing unit 16. In addition, the sound processing unit 12 and the speaker 13 are connected, and background sound and sound are output when the game is executed. The image processing unit 14 converts the game image data sent from the CPU 10 into a predetermined display format and displays the game image on the liquid crystal touch screen 15.
The input processing unit 16 detects the input position of the stylus pen by a sensor constituting the touch screen of the liquid crystal touch screen 15, and sends the information to the recognition processing unit 10c. An input signal from the key operation unit 17 is sent to the CPU 10 via the input processing unit 16.

The memory unit 11 stores a control program, each game program, player data, a magic recognition table 11a, character recognition data, and image data.
The control program controls the entire game machine, and the game program is, for example, a role playing game in which the hero travels for a certain purpose and advances the game by fighting when encountering enemy characters. . The player data is information about the game that describes the contents cleared up to the present in each game.
In the magic recognition table 11a, data such as graphics drawn with a stylus pen are classified and stored. For example, as shown in FIG. 6, the figure that starts drawing from the upper left position is drawn in the category A, the figure that starts drawing from the lower position is drawn in the classification B, and the figure that starts drawing from the upper right position. The graphic to be started is stored separately for each category C.
The image data includes characters, background pictures and item image data appearing in the game. The figure recognition data is comparison data used in the recognition processing unit 10c.

The CPU 10 has a function of a game execution unit 10a for reading a game program and executing a game in addition to a function for reading a control program and controlling the entire game machine. Moreover, each function of the contact position detection part 10b and the recognition process part 10c is provided.
The contact position detection unit 10b divides the liquid crystal touch screen 15 into three regions, an upper left region, an upper right region, and a lower region, and from which region of the above region the graphic designating the magic type is first started with the stylus pen. The contact position is detected. A classification area can be detected by taking a touch input signal from the touch screen through the input processing unit 16 and determining which coordinate position the touch input signal is on the screen.
When the stylus pen touches the touch screen in a state where a predetermined input button is pressed, the recognition processing unit 10c can detect, for example, classifications A, B, and C in the magic recognition table based on a detection signal from the contact position detection unit 10b. One figure or the like is recognized by referring to the figure recognition data from among a large number of figures or the like that specify one of them and specify the type of magic included in the narrowed down area.

FIG. 3 is a flowchart showing the flow of the normal game process.
When the power switch 5 is turned on (step (hereinafter referred to as “S”) 301), the CPU 10 displays a screen for selecting a game. When the player designates a title and selects a game (S302), the CPU 10 monitors whether or not the start button of the button unit 4 has been pressed (S303). When the start button is pressed, the game execution unit 10a starts the game (S304), and executes a process corresponding to the player's operation (S305). While the game continues, it is repeatedly determined whether or not the main character is alive (S306). If the main character is safe, the game processing is continued in response to the player's operation. When the main character receives damage and becomes 0 in strength, the game is over (S307), and the process returns to S302 for specifying the title.

FIG. 4 is a flowchart for explaining the input operation process with the stylus pen in the game process, and is an example of drawing a figure or the like specifying a magic type and activating the drawn magic.
In the normal game process, the CPU 10 monitors whether or not the player presses the input button of the button unit 4 (S401). When the input button is pressed, the stylus pen input routine is activated, and the subsequent input processing enables touch pen input. The player can input a graphic or the like for designating predetermined battle / healing by the stylus pen 6. The contact position detection unit 10b monitors whether or not the liquid crystal touch screen 15 is touched by the stylus pen 6, and when touched, the group A in the upper left area or the group B in the lower center area in the screen shown in FIG. Or any position in the group C in the upper right region is detected (S402).

FIG. 8 shows an example of a graphic designating the type of magic classified into A group, B group and C group.
The start of drawing a graphic designating the type of magic belonging to group A is all at the top left. The start of drawing a graphic designating the type of magic belonging to group B is all in the lower center. The start of drawing a graphic designating the type of magic belonging to group C is all on the upper right.
For example, when the start of drawing is at the upper left, as shown in FIG. 8B, only the figures belonging to the group A in the magic recognition table of the memory unit 11 are recognized as targets (S403). Therefore, when the stylus pen is brought into contact, the number of candidate figures can be reduced.
When the player starts drawing a graphic, the CPU 10 monitors whether or not the stylus pen 6 has been released from the liquid crystal touch screen 2 (S404). If the stylus pen 6 has been released, the CPU 10 performs a figure recognition step for the drawn graphic. Migrate to
The CPU 10 transfers control to the recognition processing unit 10c, and the recognition processing unit 10c recognizes a graphic drawn for a graphic candidate in any region of the A group, the B group, or the C group (S405). When the recognition processing unit 10c cannot recognize the graphic, the CPU 10 proceeds to the normal game process. When the graphic recognition is possible, the CPU 10 moves to the position and range specified by the specification method for the magic corresponding to the drawn graphic. The magic effect is activated (S406).

FIG. 5A is a flowchart for explaining an example of the magic activation.
If the figure is recognized in S405 of FIG. 4, if the recognized magic is, for example, a magic that ignites fire, the CPU 10 confirms on the screen that it is necessary to indicate the direction (S501). The player touches the enemy he wants to attack with the stylus pen 6. The CPU 10 monitors whether or not the stylus pen 6 has touched the attack target (S502). When it is detected that the stylus pen 6 has come into contact with the enemy character, it is next monitored whether or not the stylus pen 6 has been released (S503). When the stylus pen 6 is separated from the enemy character, the CPU 10 performs control to blow the fire magic toward the enemy character at that timing (S504), and returns to the normal game processing.
FIG. 5 (b) shows an example in which a stylus pen is in contact with an enemy to be attacked, and FIG. 5 (c) shows an example in which fire magic is blown against the enemy.
It should be noted that the activation method of the recognized graphic-corresponding magic differs depending on the type of magic.

Although the above embodiment has shown an example applied to a game machine as a stylus figure recognition method, any apparatus that has a function of inputting and recognizing a figure etc. with a stylus pen other than the game machine can be similarly applied. Is. Moreover, although the example of a figure for invoking magic was shown as the figure actually recognized with a game machine, the thing of a various form other than this can be considered.
Moreover, although the example which divided the tablet screen into three as an area | region which starts writing a figure etc. was shown, the area | region which starts writing is further subdivided, the number of figures etc. matched with each classification area | region is reduced as much as possible, and the process concerning recognition The speed can be further increased.

  It is an apparatus having an input function for recognizing a stylus graphic, such as a game machine that recognizes an input operation of a graphic indicating various magics and activates the recognized magic.

It is the schematic which shows the external appearance of the game machine to which the stylus figure recognition system by this invention is applied. It is a circuit diagram which shows embodiment of the circuit of the game machine to which the stylus figure recognition system by this invention is applied. It is a flowchart which shows the flow of a process of a normal game. It is a flowchart which shows the process of input operation by a stylus pen in a game process. It is a flowchart showing the flow of processing in the case of invoking magic, and includes an image represented by an intermediate gradation. It is a figure which shows an example of the input figure with respect to various magic, and includes the image represented by the intermediate gradation. It is a figure for demonstrating the example which divided | segmented the doublet screen in order to determine a touch area | region, and includes the image represented by the intermediate gradation. It is a figure which shows the example which classified the figure into three according to the contact start position with respect to the input figure with respect to various magic, and includes the image represented by the intermediate gradation.

Explanation of symbols

1 Game console 2,15 LCD touch screen (tablet screen)
3 Four-way controller
4 Button section 10 CPU
DESCRIPTION OF SYMBOLS 11 Memory part 12 Sound processing part 13 Speaker 14 Image processing part 16 Input processing part

Claims (3)

In a stylus figure recognition method that performs an input operation by drawing a figure, a figure that is a character or a sign by touching the tablet screen with an input means such as a pen or a finger,
A contact position detecting means for dividing the tablet screen into a plurality of areas and detecting which divided area of the divided tablet screen is in contact with the input means;
A table for classifying graphics etc. according to which divided area of the tablet screen is drawn by first contacting the input means, and storing the classified graphics etc. separately for each classification area;
Processing execution means for executing processing corresponding to the figure etc. for the recognized figure etc. in the table,
Depending on the drawing start position on the tablet screen of the input means, the figure or the like that has started to be drawn is narrowed down to one of the classified areas in the table, and the figure or the like is recognized in the narrowed down area. Characteristic stylus recognition method.   2. The stylus figure recognition method according to claim 1, wherein the divided doublet screen is divided into an upper left area, an upper right area, and a lower area. The stylus figure recognition method is applied to a game machine,
3. The stylus graphic recognition system according to claim 1, wherein the table is a magic recognition table in which a large number of figures and the like are associated with various magics that activate respective effects in a game.

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