JP2001070473A - Method for generating/displaying cg image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate/display CG images for indicating an object composed of landscapes, streets or buildings while performing training. SOLUTION: In this method, the CG image for indicating the object is generated by setting a viewpoint to the shape data of the object composed of the landscape, the street or the building prepared by using a computer 3 and making the view point stand still or moving it and is displayed at a display device attached to the computer 3. In this case, the viewpoint is made to stand still or moved corresponding to the movement of feet on fixed position moving devices 4 and 5 for moving the feet at a fixed position and the CG image is generated based on the movement of the view point.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating shape data of an object consisting of a landscape, a townscape or a building by a computer, and stopping or moving the viewpoint set with respect to the shape data, thereby to convert the object. A method of generating and displaying a CG image in which the viewpoint is stopped or moved by a fixed position motion device or the like when displaying the CG image (image by computer graphics), and a program for causing a computer to execute the method The present invention relates to a computer-readable recording medium having recorded thereon.

[0002]

2. Description of the Related Art In recent years, running machines, cycling machines, and the like have become widespread as devices for easily performing training at ordinary homes, training centers, and the like. The use of such a device has the advantage that training equivalent to running or cycling can be easily performed indoors regardless of outdoor weather, road conditions, and the like.

[0003] However, when the above-mentioned running machine or cycling machine is used, the training content is
Since it is a monotonous operation of simply walking on a belt or pedaling, there is a problem that it is difficult to maintain training for a long time.

[0004]

In order to solve the above-mentioned problems, the present invention provides a CG image generation method capable of generating and displaying a CG image representing an object consisting of a landscape, a town, or a building while performing training. It is intended to provide a generation / display method.

Therefore, a method of generating and displaying a CG image according to claim 1 of the present invention sets a viewpoint to shape data of an object composed of a landscape, a town, or a building created by using a computer, and sets the viewpoint. When a CG image representing the object is generated by resting or moving the CG image and displayed on a display device attached to the computer, the CG image is displayed on a display device attached to the computer. The present invention is characterized in that the viewpoint is stopped or moved, and the CG image is generated based on the viewpoint.

According to a second aspect of the present invention, there is provided a method for generating and displaying a CG image according to the first aspect, wherein the fixed position exercising device is a running machine. A CG image representing the inside and outside of a target object is generated.

According to a third aspect of the present invention, there is provided a method for generating and displaying a CG image according to the first aspect, wherein the fixed position exerciser is a cycling machine, and the exercising device is adapted to perform the above-mentioned movement in accordance with a foot motion on the cycling machine. A CG image representing a target object is generated.

According to a fourth aspect of the present invention, there is provided a method for generating and displaying a CG image, wherein a viewpoint is set with respect to shape data of an object composed of a landscape, a town, or a building created by using a computer, and the viewpoint is set to a stationary state. Or, when a CG image representing the inside and outside of the object is generated by moving and displayed on a display device attached to the computer, the CG image is displayed according to an operation of a manually operated wheel on a wheelchair device provided at a fixed position. The present invention is characterized in that the viewpoint is stopped or moved, and the CG image is generated based on the viewpoint.

A recording medium according to a fifth aspect is a computer-readable recording medium that records a program for executing the generation / display method according to any one of the first to fourth aspects.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, in a virtual training room 1 provided by a building company, for example,
A screen 2 (display device) of a large screen (the number of pixels is, for example, about 1280 × 1024 dots or more) having a size of about 100 inches or more;
(Computer), running machine 4 (fixed position exercise device), and cycling machine 5 (fixed position exercise device)
And a wheelchair device 6.

Although not specifically shown, the workstation 3 has a built-in control unit, arithmetic unit, storage unit, and the like. The workstation 3 displays, on the screen 2, CG images of the streets of many towns, roads, and many buildings existing in those towns in the modern and past world. The dimensional shape data and city maps (plan views) of those towns are stored. These towns and buildings may be fictitious in addition to existing or existing ones. Further, in addition to the townscape, three-dimensional shape data for displaying a real or imaginary landscape such as a sandy beach, a grassland, or the like, the surface of the moon, or the surface of Mars may be stored.

The workstation 3 has the above-mentioned 3
By setting a virtual viewpoint with respect to the dimensional shape data and stopping or moving the viewpoint, the inside and outside of the town or the building in the town is depicted as a still image or a moving image on the screen 2 by a CG image. A program for generating a CG image for performing a walk-through is installed from an appropriate recording medium such as a CD-ROM. In addition,
The three-dimensional shape data is simultaneously installed from the recording medium when the program is installed, for example.

Here, a procedure for generating a CG image based on the three-dimensional shape data in the workstation 3 will be briefly described. For example, assume that three-dimensional shape data F of a house as shown in FIG. On the other hand, when the viewpoint V and the gazing point U are set, the viewing direction D from the viewpoint V to the gazing point U is determined by the workstation 3.

Then, a quadrangular pyramid E centered on the line of sight direction D is set, and a portion included in the quadrangular pyramid E in the three-dimensional shape data F is set as a virtual visual range within the quadrangular pyramid E. Is projected on a two-dimensional projection plane, the two-dimensional shape of the
For example, a CG image indicating the entrance A of the house as indicated by H in FIG. 2 is displayed on the screen 2.

Next, as shown in FIG. 3, when the viewpoint is moved forward, the area included in the quadrangular pyramid E in the three-dimensional shape data F is correspondingly reduced.
The screen 2 has an entrance A as shown by H in FIG.
Is displayed.

In the present embodiment, the movement of the viewpoint is performed according to the movement of the customer's foot or hand on the running machine 4, cycling machine 5, or wheelchair device 6. Note that processing such as generation of a CG image can be performed using a so-called personal computer in addition to the workstation 3.

The running machine 4 has a normal configuration in that it includes a pair of front and rear rollers 7 rotatable in forward and reverse directions and an endless belt 8 wound between the rollers 7. A rotation speed detection device (tachometer, not shown) is attached to one of the rollers 7. The roller 7 rotates in the forward and reverse directions as the customer (not shown) walks forward or backward on the belt 8 and the belt 8 circulates in the forward and reverse directions. It may have an electric assist function of detecting the circulating movement of the belt 8 due to walking and driving the roller 7 in an auxiliary manner by an electric motor.

A handle 9 is provided at the front of the running machine 4.
And a touch panel 13 integrally provided with a left-turn button 11 and a right-turn button 12 is disposed on the handle 9. The rotation speed detecting device, the left / right switching buttons 11 and 12 and the touch panel 13 are connected to the workstation 3.

The cycling machine 5 includes a saddle 14
And a pedal 15 having a predetermined rotational load, which is a normal configuration, but includes a handle 16 that can rotate left and right, and a rotational speed detecting device (not shown) that detects the rotational speed of the pedal 15. And a rotation angle detection device (not shown) for detecting the rotation angle of the handle 16.
A touch panel 13 similar to the above is attached to the center of the handle 16, and the rotation number detection device, the rotation angle detection device, and the touch panel 13 are connected to the workstation 3.

The wheelchair device 6 has a seat 17 similar to a normal wheelchair and a pair of left and right manual operation wheels 18 (the right side is not shown). It is provided fixedly in the interior. Further, the wheelchair device 6 is provided with a rotation speed detection device (not shown) for detecting the rotation speed of each of the left and right manual operation wheels 18 and the same touch panel 13 as described above. Is connected to the workstation 3.

Hereinafter, a procedure for displaying a CG image in the virtual training room 1 will be described. If the customer is a healthy person, training is usually performed using either the running machine 4 or the cycling machine 5. Here, for example, a case where the running machine 4 is used will be described.

When a customer starts training on the running machine 4, first, a menu is selected on the touch panel 13. The initial display contents on the touch panel 13 are shown in Table 1 below.
And touching and selecting a desired menu.

[Table 1]

For example, when “World Town” is selected from the menu 1, a submenu as shown in Table 2 is displayed on the touch panel 13.

[Table 2]

When the customer selects a desired town, for example, “Hyundai, Tokyo”, the touch panel 13 shown in FIG.
A city map (plan view) of “Tokyo” is displayed above. Then, when the initial position of the display of the CG image, for example, the position B on the road is touched on the touch panel 13, based on the three-dimensional shape data of the street of “Tokyo” stored in the workstation 3 in advance, As shown in FIG.
A CG image is displayed on the screen 2 indicating a state in which the user stands at the initial position B and looks forward. This initial position may be set in advance to a specific position for each town.

Thereafter, when the customer walks or runs on the running machine 4 in the forward or backward direction, the viewpoint moves forward when moving forward, and the viewpoint moves backward when moving backward. The same scene as actually walking or running in the town of "Tokyo" starting from the position is displayed by the CG image.

[0026] This allows the customer to experience the same situation as actually walking or jogging in the town of "Tokyo" while indoors, so that long-time training can be performed without getting bored. Also, since data on foreign towns and historical towns other than "Tokyo" is also prepared, there is an advantage that various knowledge can be acquired while training. When the customer wants to change the direction of the line of sight or the traveling direction to the left or right on the CG image, the customer may press the left switch button 11 or the right switch button 12.

The procedure for training using the cycling machine 5 is substantially the same as described above. In this case, the viewpoint is advanced by pedaling the pedal 15, and the direction of the line of sight is changed by rotating the handle 16. Is converted to Further, when the wheelchair device 6 is used, the viewpoint is moved forward or backward by simultaneously rotating the left and right manual operation wheels 18 in the forward or reverse direction, and only one of the manual operation wheels 18 is operated. This changes the direction of the line of sight to left and right.

When the running machine 4 or the wheelchair device 6 is used, by moving the viewpoint to the indoor side of the building, the scene on the indoor side can be described by a CG image as shown in FIG. It is possible. Also in this case, when the customer advances or retreats on the running machine 4, the same scene as when the customer advances or retreats inside the building is described by the CG image.

Next, when "model town" of menu 2 in Table 1 is selected, virtual towns having various model rooms prepared by the building company are displayed on the screen 2, and the running machine is displayed. 4. By exercising on the high grade, moving on the road of this virtual town on the CG image, or moving to the indoor side of the desired model room on the CG image, observing and examining floor plans and equipment Can be performed. In this way, an experience similar to actually walking between various model rooms can be performed in the virtual training room 1.

When a customer who actually plans to build a house selects "my town" in menu 3 in Table 1, the town where the house is to be built and the house to be built are:
It is described by a CG image based on three-dimensional shape data prepared in advance, and moves on a road of this town on the CG image by exercising on the running machine 4 or the like.
The user can move to the indoor side of the house to be built on the CG image and perform floor plan, observation and examination of equipment and the like.

Instead of training while displaying the streets and buildings inside and outside using CG images, it is also possible to perform training while displaying real or imaginary landscapes such as sandy beaches, grasslands, and the moon. In the above description, the building company prepares the virtual training room 1. However, when displaying the contents such as the menu 1, it is also possible to provide the same equipment as above in a general training center. .

Further, when a general household has a training device such as a running machine 4 or a cycling machine 5 and a personal computer, the running machine 4 and the like are equipped with the rotation speed detecting device and the like as necessary.
In addition, by connecting them to each other, it is possible to perform the above-described virtual training in a general home. In this case, a program for generating and displaying a CG image and necessary three-dimensional shape data are stored on a CD-R.
It can be recorded on a recording medium such as OM and sold.

When training at a training center, a general home, or the like, instead of the screen 2 as a display device, for example, a head-mounted display device 20 (eye of a wearer) as shown in FIG. It is also preferable to use a small liquid crystal display device 21 or the like disposed at the front). The example of FIG. 6 is a combination of the running machine 4, the head-mounted display device 20, and the personal computer 22.

[0034]

As described above, according to the first aspect of the present invention,
The method of generating and displaying a CG image is to set a viewpoint with respect to shape data of an object composed of a landscape, a townscape, or a building created by using a computer, and stop or move the viewpoint to move the object. When a CG image is generated and displayed on a display device attached to the computer, the viewpoint is stopped or moved in accordance with the movement of the foot on a fixed position exerciser that moves the foot at a fixed position. Since the CG image is generated in the above-described manner, when the training for moving the foot on the home position exercise apparatus is performed, the viewpoint is moved in accordance with the forward or backward movement, and the viewpoint or the view is moved in the landscape or the town or the As a result of displaying the same scene as moving inside and outside the building on the display device, long training can be performed without being bored. Also, it is useful to prepare data on unknown lands and foreign towns as the above-mentioned landscapes and townscapes, because knowledge about unknown towns and the like can be obtained while training.

According to a second aspect of the present invention, there is provided a method for generating and displaying a CG image according to the first aspect, wherein the fixed position exerciser is a running machine, and the above-mentioned fixed position exerciser is operated in accordance with a foot motion on the running machine. Since the CG image representing the inside and outside of the target object is generated, when the foot is moved on the running machine, the above scenery or the same scene as moving in the town or inside or outside the building is obtained. As a result of being displayed on the display device, long-time walking or running training can be performed without being bored.

According to a third aspect of the present invention, there is provided a method for generating and displaying a CG image according to the first aspect, wherein said fixed position exerciser is a cycling machine, and said exercising apparatus is adapted to perform a movement of a foot on said cycling machine. Since the CG image representing the outside of the object is generated, pedaling on the cycling machine displays the same scenery or the same scene as cycling in the town on the display device. As a result, long training can be performed without boring.

According to a fourth aspect of the present invention, there is provided a method for generating and displaying a CG image, wherein a viewpoint is set with respect to shape data of an object composed of a landscape, a town, or a building created using a computer, and the viewpoint is set to a stationary state. Or, when generating a CG image representing the object by moving and displaying the CG image on a display device attached to the computer, the viewpoint is changed according to an operation of a manually operated wheel on a wheelchair device provided at a fixed position. Since the CG image is generated based on the stationary or moving state, the handicapped person or the like operates the manual operation wheel on the wheelchair device, so that the scenery, the townscape or the inside of the building can be operated. Alternatively, a CG image similar to moving around the outside can be displayed on the display device.

The recording medium according to the fifth aspect of the present invention is the recording medium according to the first aspect.
Since the present invention is a computer-readable recording medium on which a program for executing any of the generation and display methods according to any one of the above-mentioned items 4 to 4 is recorded, the above-mentioned useful generation and display can be performed by installing the program from the recording medium into a computer. The method can be performed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a virtual training room used in an embodiment of the present invention.

FIG. 2 is an explanatory diagram for explaining a procedure for generating a CG image in the virtual training room or the like.

FIG. 3 is an explanatory diagram for explaining a subsequent procedure for generating the CG image.

FIG. 4 is an explanatory diagram showing how to determine an initial position for displaying a CG image in the virtual training room.

FIG. 5 is an explanatory diagram showing a state in which the indoor side of a building is displayed by the CG image.

FIG. 6 is an explanatory diagram showing a modification of the above embodiment.

[Explanation of symbols]

 2 screen (display device) 3 workstation (computer) 4 running machine (fixed position exercise device) 5 cycling machine (fixed position exercise device) 6 wheelchair device

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) G06T 15/00 G06F 15/62 360 F term (reference) 5B050 BA07 EA27 FA02 5B087 AA07 AB03 AE00 BC05 BC12 DE02 5E501 AA02 AA30 AC15 AC34 BA05 BA12 BA16 BA17 CA02 CB20 FA14 FA27 FA36 FA47 FB12

Claims (5)

[Claims] 1. A viewpoint is set with respect to shape data of an object composed of a landscape, a townscape, or a building created using a computer, and a CG image representing the object is generated by stationary or moving the viewpoint. At the time of display on a display device attached to the computer, the viewpoint is stopped or moved in accordance with the movement of the foot on a fixed position exerciser that moves the foot at a fixed position, and the CG image is generated based on the viewpoint. A method for generating and displaying a CG image relating to a building, characterized in that: 2. The CG image is generated by moving the viewpoint in accordance with a motion of a foot on the running machine, wherein the fixed-position exercising apparatus is a running machine. 1. A method for generating and displaying a CG image according to 1. 3. The fixed position exercise device is a cycling machine, wherein the viewpoint is moved in accordance with the movement of a foot on the cycling machine, and the CG image is generated. 1. A method for generating and displaying a CG image according to 1. 4. A CG image representing the object is generated by setting a viewpoint with respect to shape data of an object composed of a landscape, a townscape, or a building created by using a computer, and moving or moving the viewpoint. Then, when displaying the image on a display device attached to the computer, the viewpoint is stopped or moved in accordance with an operation of a manual operation wheel on a wheelchair device provided at a fixed position, and the CG image is generated based on the viewpoint. C characterized by doing
How to generate and display G images. 5. A computer-readable recording medium on which a program for executing the generation / display method according to claim 1 is recorded.