JPH09251285A - Pointing position display method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the exact and rapid execution of indication input by determining the distance to an object for indication and displaying the display color of this object for indication by continuously changing this color in accordance with this distance. SOLUTION: An indication position detecting section 200 takes in the video of the display surface of a large-screen display device 401 from a camera 210, determines the coordinates of the indication position and outputs the coordinates to a distance calculation section 101 and a pointer state decision section 103. This distance calculation section 101 determines the distance from the indication position to the displayed object for indication in the screen displayed on the large-screen display device 401 and outputs the result to a display color determination section 102. This display color determination section 102 determines the display color of the object for indication according to the distance from the indication position to the object for indication and changes the display color of the object for indication by a display screen control section 301. On the other hand, a pointer state decision section 103 outputs the statement of the determination of the indication position to an object for indication decision section 104 if the pointing input position is determined.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pointing input system such as a remote control using a laser beam and a touch panel used in a plant operation monitoring system or a presentation system.

[0002]

2. Description of the Related Art In a touch panel of a display device currently used in an operation control room of a power plant or the like, in order to select a desired pointing object, a rectangular pointing area is preliminarily defined so as to include the pointing object. The selected pointing object is specified by determining which pointing object the pointing position input by pointing is in the pointing area of the pointing object.

In addition, pointing input means to a large-screen display device, which has been recently introduced into an operation control room of a power plant, a presentation, etc. (Japanese Patent Laid-Open No. 3-179517)
Japanese Patent Laid-Open Publication No. 2004-242242 describes an example in which a pointer using laser light is used to input an instruction on the display screen of a large-screen display device, and the position indicated by a camera installed at a position where the display screen can be photographed is detected. The pointing input means for the large-screen display device also employs a method of predefining a rectangular pointing area for selecting an pointing object, like the touch panel of the above-described display device.

[0004]

As described above, in order to select the pointing object displayed on the display screen by the pointing input, the pointing input pointed position is set in a predetermined area, that is, for each pointing object. It is assumed that it is within the designated area defined in.

However, on the display screen used in the operation control room of the power plant, there are a plurality of pointing objects, and some of these pointing objects are arranged very finely and / or densely. . In this case, the following problems occur.

(1) It is impossible to define a large pointing area in a portion where pointing objects are densely arranged. That is, if the designated areas are made large, the designated areas will overlap each other.

(2) Since the definition of the designated area is not displayed, the input person cannot identify it.

For this reason, when pointing and inputting the pointing object to be pointed, since the pointing area is small, it is necessary to finely adjust the pointing position. Furthermore, since the input person cannot identify which part of the pointing area is, it is not possible to intuitively understand which part of the pointing target is subjected to the input process by inputting which part. It is difficult to accurately and promptly input an instruction for a desired pointing object. In particular, for remote instruction input to a large-screen display device using a pointer using laser light, the operability at the time of instruction input may become extremely poor due to the effects of camera shake and the like.

An object of the present invention is to provide a pointing position display method capable of performing accurate and speedy instruction input even for a portion in which pointing objects are densely arranged.

[0010]

A pointing position display method according to the present invention obtains a distance from a designated position designated by a pointing input means to a designated object displayed as a designable graphic on a display screen, The display color of the pointing object is continuously changed and displayed based on this distance.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a remote instruction input system used in an operation control room of a power plant according to the first embodiment.

A pointer 501 is used for pointing input on the display surface of the large screen display device 401. Pointer 50
1 emits infrared laser light in accordance with an operation of an instruction input person. The position where the laser beam hits the display surface of the large screen display device 401 is the designated position.

The camera 210 is installed at a position where the display surface of the large screen display device 401 can be photographed, and a visible light cut filter is attached so as to capture only the infrared laser light emitted from the pointer 501.

The pointed position detection unit 200 takes in an image on the display surface of the large screen display device 401 from the camera 210, obtains the coordinates of the pointed position by a method described later, and calculates the coordinates of the pointed position by the distance calculation unit 101 and the pointer state. Determination unit 103
Output to

The distance calculation unit 101 has a large screen display device 401.
On the screen displayed at, the distance from the pointing position to the displayed pointing object is calculated, and the result is output to the display color determination unit 102.

The display color determining section 102 determines the display color of the pointing object according to the distance from the pointing position to the pointing object, and the display screen control section 301 changes the display color of the pointing object. On the other hand, the pointer state determination unit 103 determines whether the pointing input by the pointer is continuing, and if the pointing input is completed, that is, if the pointing input position is fixed, the pointing position is fixed, the pointing target determination unit 104. Output to.

The instruction target determination unit 104 includes a distance calculation unit 10
Enter the result of obtaining the distance from the pointed position to the pointed object from 1, search for the pointed object closest to the pointed position,
The name of the instruction target object is output to the processing instruction generation unit 601 and the display screen control unit 301. The display screen control unit 301 inputs the name of the instructed object and changes the display color of the instructed instructed object.

The processing command generation unit 601 generates a plant operation command according to the instructed target object, and the plant operation unit 701 inputs the plant operation command to operate the plant 702.

FIG. 2 is a flow chart showing the operation flow of the remote instruction input system of the first embodiment. The operation of the system shown in FIG. 1 will be described with reference to this figure.
First, the process up to detection of the designated position will be described. In the pointed position detection unit 200, first, the image capturing processing unit 201 captures an image from the camera 210 (step 1001), and the captured image is image-processed by the image processing unit 202 (step 1002) to display the designated position. Coordinate calculation unit 203
Then, the coordinates of the designated position are calculated (step 1003).

Here, a flow chart of detailed processing of the pointed position detecting section 200 is shown in FIG. Pointed position detector 20
0 captures the image on the display surface of the large screen display device 401 from the camera 210 in the image capture processing 201 (step 110).
1), the image is binarized by image processing 202 (step 1
102) and only the pointing light from the pointer is extracted. FIG. 4 is an explanatory diagram of the operation of the pointed position detection unit 200. FIG.
Image 4001 is the result of binarizing the image captured from the camera, and the object 4100 is the pointing light of the pointer. When the projection distribution in the X-axis and Y-axis directions (step 1103) is taken for this pointing light, the result 4101, Y in the X-axis direction is obtained.
An axial result 4102 is obtained. After that, points X1 and X at which a predetermined density, which is a threshold value, a threshold value 4111 in the X-axis direction, a threshold value 4112 in the Y-axis direction, and the graph of the projection distribution intersect with each other.
2, Y1, Y2 are obtained (step 1104). X1,
After obtaining X2, Y1 and Y2, the center coordinates of the object 4100 are calculated (step 1105). The center coordinates of the object 4100 are ((X1 + X2) / 2, (Y1 + Y2) / 2)
Becomes Finally, the center coordinates of the object 4100 are output as the coordinates of the designated position (step 1106).

Next, the display color changing process (steps 1004 to 1006) of the pointing object during pointing input in FIG. 2 will be described.

The coordinates of the pointed position obtained by the pointed position detection unit 200 are input to the distance calculation unit 101, and the distance calculation unit 101 obtains the distance from the pointed position to the pointed object displayed on the display screen ( Step 1004), the display color determining unit 102 determines the display color of the pointing target object according to the distance from the pointing position to the pointing target object (step 1005),
The display screen control unit 301 changes the display color of the instruction target object (step 1006).

The processing of this part will be described in detail.
FIG. 5 shows the detailed processing flow of the distance calculation unit 101. FIG. 6 shows the structure of the pointing target display position data 105. When the distance calculation unit 101 inputs the coordinates of the designated position from the designated position detection unit 200 (step 1201), the distance calculation unit 101 of FIG.
The name and display position (center coordinates) of the pointing object display position data storage unit 105 having the configuration described above are used to calculate the distance between each pointing object and the pointing position (step 1202), and the “pointing object name” is displayed. And "distance from the designated position" are output (step 1203).

Next, a detailed flow of the display color determination processing 102 is shown in FIG. FIG. 8 shows the relationship between the distance from the designated position and the display color in the first embodiment. When the "color of the pointing object" and the "distance from the pointing position" are input from the distance calculating section 101 (step 1301), the display color determining section 102 is set as shown in FIG.
The display color of each pointing object is determined from the relationship between the display color and the distance from the pointing position to the pointing object shown in step 130.
2) Then, the "name of the pointing object" and the "display color" are output (step 1303).

Next, FIG. 9 shows a detailed flow of the display color changing process of the pointing object of the display screen control unit 301. Further, FIG. 10 shows the configuration of the display screen data storage unit 106 of the first embodiment. The display color changing process of the display screen control unit 301 is
When the "name of the pointing object" and the "display color" are input from the display color determining unit 102 (step 1401), the display position (center coordinate) of the pointing object in the display screen data storage unit 106 having the configuration shown in FIG. The display color (width and height) and the drawing data of the display element are referenced to change the display color of the pointing object (step 1402).

FIG. 11 shows an example of a display screen on which the display color changing process of the pointing object during the pointing input described above is performed. The display screen 4301 is an initial screen, and the display colors of the pumps 4401, 4402, and 4403 that are the instruction target objects are also in the initial state. The display screen 4302 is a screen in which the position 4501 is designated by the pointer, and the pump 4401, 4
The display colors of 402 and 4403 are changed based on the relationship between the display color and the distance from the pointing position to the pointing target shown in FIG. For example, from the position 4501 to the pointing object 440
If the distance to the display position of 1 is d1, the pump 440
The display color of 1 is changed to the display color corresponding to the position of d1 in FIG. Similarly, if the distance from the position 4501 to the pump 4402 is d3 and the distance from the position 4501 to the pump 4403 is d5, the display color of the pump 4402 is d in FIG.
The display color corresponding to the position 3 and the display color of the pump 4403 are changed to the display color corresponding to the position d5 in FIG.

The display screen 4303 displays the designated position at position 45.
It is a display screen when moved from 01 to a position 4502. By moving the designated position from the position 4501 to the position 4502, the pumps 4401 and 440 are moved from the designated position.
The distance to 2,4403 is also changed. Display screen 4303
Is a display example when the distance from the position 4502 to the pump 4402 is d1 and the distance from the position 4502 to the pumps 4401 and 4403 is d3. Similarly, display screen 4304
Is a display screen when the designated position is moved from position 4502 to position 4503. By moving the designated position from the position 4502 to the position 4503, the distance from the designated position to the pumps 4401, 4402, 4403 is also changed. Display screen 4304 shows pump 44 from position 4503.
In the display example, the distance 01 is d5, the distance from the position 4503 to the pump 4402 is d3, and the distance from the position 4503 to the pump 4403 is d1.

Next, the process after the pointing input is confirmed will be described with reference to FIG.

The pointer state judging section 103 judges whether or not the input with the pointer is performed (step 100).
7) If not implemented, the process returns to step 1001. Here, in the apparatus according to the present embodiment, the input is performed by stopping the emission of infrared light from the pointer, that is, by turning off the infrared light emission switch. If the pointing input with the pointer is performed, the pointing object to be selected is determined (step 1008). When the pointing object to be selected is confirmed, the display color of the currently changing pointing object is restored (step 1009), and the display color of the pointing object whose selection is fixed is selected as shown in FIG. The display color indicating that is confirmed is changed (step 1010).

Here, the detailed processing flow of the pointer state determination unit 103 will be described with reference to FIG. The processing of the pointer state determination unit 103 determines whether the pointer switch is "on" (pointer light is being emitted from the pointer) or the pointer switch is "off" (pointer light is not being emitted from the pointer) (step 1501). ) And the pointer is switched off
If so, output that the designated position is confirmed (step 1
502) The state of the switch of the pointer can be determined by taking in the image processed by the image processing 202 of the pointed position detection unit 200 and determining whether or not there is pointer pointing light in the image.

Next, FIG. 13 shows a flowchart of the detailed processing of the instruction target determination unit 104. Instruction target determination unit 1
04 is the input of the "name of the pointing object" and the "distance from the pointing object" from the distance calculation unit 101 (step 1601).
Is repeated until the designated position is determined (step 1602). When the pointed position is determined, the pointed object having the shortest distance from the pointed position is searched (step 1603), and the name of the pointed object is output (step 1604).

Finally, FIG. 14 shows a detailed processing flow of the processing instruction generator 601. Further, FIG. 15 shows the structure of the processing instruction generation conversion data. Processing instruction generator 601
When inputting the “name of the designated object” from the designated object determining unit 104 (step 1701), the processing instruction generation conversion data shown in FIG. 15 is referenced to search for the processing instruction (step 1702), and the processing instruction is issued. It is output to the display screen control unit 301 or the plant operation unit 701 (step 1703). To the display screen control unit 301, a display screen switching command or a command to highlight an instruction target object for which an instruction has been fixed is output. Further, a command for operating the plant equipment (opening / closing the valve, starting / stopping the pump) is output to the plant operation unit 701,
The plant operation unit 701 operates the plant 702.

In the first embodiment, the display color of the pointing target is changed according to the distance from the pointing position to the pointing target, but the background color of the pointing target can be changed in the same manner. . Further, it is possible to change the blinking speed of the pointing target according to the distance from the pointing position to the pointing target.

In this embodiment, the display color of the pointing object can be changed according to the distance from the pointing position of the pointer to the pointing object. This makes it possible to identify selectable pointing objects without overlapping the pointer laser light on the pointing object to be selected. Also, since the display color of the pointing target is continuously changed according to the distance from the pointing position to the pointing target, it is possible to move the pointer in any direction from the current pointing position to the pointing target to be selected. It is possible to intuitively recognize whether or not to do it. As a result, even for a screen in which pointing objects are densely arranged,
It becomes possible to input the pointing object by pointing. Further, since it is not necessary to define the pointing area for pointing and inputting the pointing object in advance, it is possible to save the trouble of defining the pointing area on the screen. Furthermore, if the device according to the present embodiment is used for a screen in which the pointing object is densely arranged and the pointing region cannot be widely defined,
It is possible to quickly perform the input operation without finely adjusting the input position.

Further, in the case where the object to be instructed is colored to indicate the state of the object to be instructed (in the case of a pump, it is starting or stopping) on the display screen used for plant operation monitoring,
Since it is impossible to change the display color of the pointing object, it is impossible to change the background color of the pointing object, so it is possible to change the background color of the pointing object and / or Alternatively, the same effect can be obtained by changing the blinking cycle of the display of the pointing object.

A second embodiment will be described below with reference to the drawings.

FIG. 17 is a system block diagram of a remote instruction input system used for the presentation of the second embodiment. Also in this embodiment, infrared laser light is used for the pointer 501, and the large screen display device 4 is operated by the pointer 501.
01 is displayed directly on the display screen. The camera 210 is installed at a position where the display surface of the large-screen display device 401 can be photographed, and a visible light cut filter is attached so as to capture only infrared laser light emitted from the pointer 501.

The configuration is the same as that of the first embodiment except for the pointing target determination section 111, the background color determination section 112, the pointing target display position data storage section 115, and the display screen data storage section 116. Hereinafter, the operation of the remote instruction system of the second embodiment and the configuration of the instruction target determination unit 111, the background color determination unit 112, the instruction target display position data storage unit 115, which are different in configuration from the first embodiment,
The display screen data 116 will be described.

The pointing target determination unit 111 inputs the coordinates of the pointing position obtained by the pointing position detection unit 200, refers to the data in the pointing target display position data storage unit 115, and refers to the large screen display device 401 from the pointing position. The distance to the pointing object in the screen displayed in is calculated, and the result is output to the background color determination unit 112 and the processing command generation unit 601. The background color determination unit 112 determines the background color of the instruction target and refers to the result of the background color change while referring to the data in the display screen data storage unit 116 based on the result from the instruction target determination unit 111. Output to.

FIG. 18 is a diagram showing a flow of operations of the entire remote instruction system of the second embodiment. In this system, first, the pointed position detection unit 200 captures an image from the camera 210 (step 2001), performs image processing on the captured image (step 2002), and calculates coordinates of the pointed position (step 2003). . Next, the pointing target determination unit 111 obtains the pointing target that is closest to the pointing target displayed on the display screen from the pointing position (step 200).
4). Next, the background color determination unit 112 determines the background color of the instruction target (step 2005), and the display screen control unit 30
In step 1, the background color of the pointing object is changed as shown in FIG. 23 (step 2006).

An example of a display screen in which the background color of the pointing object shown in FIG. 23 is changed will be described. Display screen 50
01 is a display example when the position 5101 is designated by the pointer. The background color of the display area 5201 (set by the display position (center coordinates) and the display area (width and height)) of the pointing object closest to the pointing position 5101 is set to be the closest to the pointing position 5101. It is dark, and it is continuously thinly displayed each time it moves away from the indicated position. A display screen 5002 is a display example when the designated position is moved from the position 5101 to the position 5102. The designated position is changed from position 5101 to position 510.
By moving to 2, the background color is changed such that the vicinity of the position 5102 is displayed darkest. Similarly, the display screen 5203 is a display example when the designated position is moved from the position 5102 to the position 5103. The indicated position is position 510
The display area for changing the background color by moving to 3 is 520
From 2 to 5203, the background color is changed so that the vicinity of the position 4503 is displayed darkly. By the way, when the instruction target objects 5011 and 5012 on the display screen 5001 are instructed, the display screen is changed. This display screen changing means enables a presentation using a plurality of materials.

The detailed processing flow of the instruction target determination unit 111 and the background color determination unit 112 will be described below.

FIG. 19 shows a flow chart of the detailed processing of the instruction target determination unit 111 according to the second embodiment. FIG. 2
0 indicates the pointing target display position data storage unit 1 according to the second embodiment.
The structure of 15 is shown. When the coordinates of the designated position are input from the designated position detection unit 200 (step 2101), the processing of the designated target determination unit 111 indicates the designated position among the designated objects in the designated display position data storage unit 115 having the configuration shown in FIG. The object to be pointed closest to is searched (step 2102), and the "coordinates of the pointed position" and the "name of the pointed object" are output (step 2103).

Next, FIG. 21 shows a flowchart of the detailed processing of the background color determining section 112. FIG. 22 shows the configuration of the display screen data storage unit 116. Background color determination processor
The 112 inputs the “coordinates of the designated position” and the “name of the designated object” from the designated object determining unit 111 (step 220).
1) Then, the "name of the object to be instructed", the display position of the display screen data storage unit 116 whose configuration is shown in FIG. 22, the display area is taken in, the position for changing the background color and the size of the area are determined, As shown in the background color change area 5201 in FIG. 23, the background color is darker near the designated position 5102, and the designated position 5101 is darker.
It is determined to continuously display lighter as it becomes farther from (step 2202). After that, "position coordinates" for changing the background color, "display area (width and height)", and "display color" are output. According to this output, the display screen control unit 30
At 1, the display on the large screen display device 401 is changed.

In the present embodiment, the background color is displayed darker near the designated position and continuously lightened as the distance from the designated position increases. Further, the pointer state determination unit 103 determines whether or not the input with the pointer is completed (step 200
7) If not completed, the process returns to step 2001.
On the other hand, if the pointing input with the pointer is completed, the background color of the pointing object whose background color is currently changed is restored (step 2008).

As described above, in the present embodiment, the background color of the pointing object closest to the position pointed by the pointer is darkened near the pointed position and continuously faded away from the pointed position. It is possible. This allows
As in the first embodiment, it is possible to discriminate selectable pointing objects without overlapping the pointer laser light on the pointing object to be selected. Further, in the present embodiment, since it is possible to display, for one pointing object, dark near the pointing position and lighter as it goes away from the pointing position, it is possible to determine which part of the pointing object is being pointed by the pointer. It is possible to display in an easy-to-understand manner. This is effective in a case where the words in the sentence displayed in conjunction with the explanation are emphasized in order in a presentation or the like.

[0048]

According to the present invention, the distance from the position pointed by the pointer to the pointing object displayed on the display screen is obtained, and the display color of the pointing object is changed according to the distance. You can

With this, even if the laser beam of the pointer is not superposed on the pointing object, the selectable pointing object is discriminated,
It is possible to easily select the pointing object and perform the input operation. Further, it is possible to emphasize and display a character string or the like in a sentence without directly instructing the part.

Further, since the display is continuously changed according to the distance from the designated position, it is possible to intuitively and easily recognize how to move the cursor to a desired position. Is.

Furthermore, since it is not necessary to define the pointing area for pointing input of the pointing object in advance, it is possible to save the trouble of defining the pointing area on the screen.
Furthermore, even for a screen in which the pointing object is densely arranged and the pointing area cannot be widely defined, the device according to the present embodiment can be used to quickly perform the input operation without finely adjusting the input position. It is possible.

As described above, by using the pointing position display method according to the present invention, it is possible to improve the operability of pointing input such as pointing input to a large-sized display device using laser light. As a result, the burden on the operator in the plant monitoring operation can be reduced, and the presentation and the like can be carried out easily and easily. Furthermore, since it is not necessary to previously set the pointing area for each nuclear pointing target, it is possible to easily and easily create the pointing input screen. Therefore, by using the pointing position display method according to the present invention, the effect of improving the economy and safety is great.

[Brief description of drawings]

FIG. 1 is a block diagram of a remote instruction input system according to a first embodiment.

FIG. 2 is a flowchart of the remote instruction input system according to the first embodiment.

FIG. 3 is a flowchart of processing of a designated position detection unit.

FIG. 4 is an explanatory diagram of a method for detecting designated coordinates by a designated position detection unit.

FIG. 5: Distance calculation unit (from pointed position to each pointed object)
Flowchart of processing.

FIG. 6 is an explanatory diagram of pointing object display position data according to the first embodiment.

FIG. 7 is a flowchart of display color determination processing according to the first embodiment.

FIG. 8 is an explanatory diagram of a relationship between a distance from a designated position and a display color.

FIG. 9 is a flowchart of display color change processing of the display screen control unit.

FIG. 10 is an explanatory diagram of display screen data according to the first embodiment.

FIG. 11 is an explanatory diagram of a display screen example in which the display color of the instruction target object according to the first embodiment is changed.

FIG. 12 is a flowchart of processing of a pointer state determination unit.

FIG. 13 is a flowchart of processing of an instruction target determination unit according to the first embodiment.

FIG. 14 is a flowchart of processing of a processing instruction generation unit.

FIG. 15 is an explanatory diagram of conversion data for processing instruction generation.

FIG. 16 is an explanatory diagram of an example of a display screen after the pointing object is confirmed.

FIG. 17 is a block diagram of a remote instruction input system according to a second embodiment.

FIG. 18 is a flowchart of the operation of the remote instruction input system according to the second embodiment.

FIG. 19 is a flowchart of processing of an instruction target determination unit according to the second embodiment.

FIG. 20 is an explanatory diagram of pointing object display position data according to the second embodiment.

FIG. 21 is a flowchart of background color determination processing according to the second embodiment.

FIG. 22 is an explanatory diagram of display screen data according to the second embodiment.

FIG. 23 is an explanatory diagram of a display screen example according to the second embodiment.

[Explanation of symbols]

 301 ... Display screen control unit, 702 ... Plant.

Claims (12)

[Claims] 1. A display method for the pointing object is continuously performed according to a distance between a position on the display screen pointed by the pointing input means and a position of the pointing object displayed on the screen as the pointing object. A pointing position display method characterized by changing. 2. A means for detecting coordinates of a pointed position on a display screen pointed by a pointing input means, and a distance between the pointed position and a pointed object to be pointed, the coordinates of the display position being displayed and displayed. Of means for obtaining the coordinates of the pointing object with respect to the figure, means for determining the display color of the pointing object based on the distance, and changing the display color of the pointing object based on this result. A pointing position display method comprising means. 3. The position on the display screen designated by the pointing input means and the distance to the pointing target displayed on the screen as the pointing target are expressed by changing the display method of the pointing target. And pointing position display method. 4. A means for detecting coordinates of a pointed position on a display screen pointed by a pointing input means, and a distance between the pointed position and a pointed object to be pointed, the pointed position coordinate and the displayed point being displayed. Pointing position characterized by providing means for obtaining using the coordinate data of the pointing object with respect to the figure, means for associating the distance with the displaying method of the pointing object, and means for changing the displaying method of the pointing object Display method. 5. One of the pointing objects is selected based on the position on the display screen pointed by the pointing means and the distance to one or more pointing objects to be pointed, and the selection is made. The pointing position display method is characterized in that the display of the designated pointing object is changed such that the display object becomes darker near the pointing position and becomes continuously thinner as it goes away from the pointing position. 6. A means for detecting coordinates of a designated position on a display screen designated by a pointing input means, a means for obtaining a distance from the designated position to a designated object to be designated, and based on the distance. Means for selecting one pointing object from among the pointing objects, and means for determining the background color of the selected pointing object such that the background color is dark near the pointing position and becomes continuously lighter away from the pointing position. And a means for changing the display based on the result of the deciding means. 7. The pointing position display method according to claim 1, claim 2, claim 3 or claim 4, wherein the display color of the pointing object is changed. 8. The pointing position display method according to claim 1, claim 2, claim 3 or claim 4, wherein the display color of the background of the pointing object is changed. 9. The pointing position display method according to claim 3 or 4, wherein the blinking display is performed on the pointing object, and the blinking cycle is changed. 10. The pointing color according to claim 1, claim 2, claim 5, or claim 6, wherein the display color has a high density near a designated position and is continuously set to be lighter each time the designated position is separated. Position display method. 11. A display color according to claim 1, claim 2, claim 5, or claim 6, wherein the display color near the designated position is warm and the display color is continuously cooled every time it is separated from the designated position. Pointing position display method to set. 12. The blinking cycle according to claim 9, wherein the blinking cycle near the designated position is set to be short, and the blinking cycle is continuously set to be long every time the position is separated from the designated position.