JP2002101429A - Virtual reality space generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a virtual reality space generator that projects a stereoscopic image in a real three-dimensional space and allows an experiencing person to have various vicarious experiences while the experience person actually moves in the virtual reality space. SOLUTION: A stereoscopic image projector 5 is placed at proper positions of a ceiling 2 covering an upper part of a plot 3 and the stereoscopic projectors 5 projects stereoscopic images in a space demarcated and formed by the ceiling 2 to allow the experience person to have various pseudo experiences while the experiencing person actually moves in the virtual reality space. Each stereoscopic projector 5 uses a white light source 7 to project light to a stereoscopic hologram formed by standing upright a film 6 that records a hologram and is rolled up into a cylinder so as to project a stereoscopic image whose vision area is the entire circumference of the cylinder in the horizontal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a virtual reality space generating apparatus for generating a virtual reality space using a stereo hologram or the like.

[0002]

2. Description of the Related Art What is VR (Virtual Reality)?
A technology that simulates a nonexistent space (virtual reality space) using computer graphics technology.
Various simulated experiences are possible by a user wearing a special VR device moving around in a three-dimensional video space that is a virtual reality. For example, when such virtual reality technology is introduced into a system kitchen exhibition hall, etc., it is possible to virtually experience the virtually ideal system kitchen obtained by combining various kitchen units that are commercially available as products. Yes, it is welcomed by users who are about to install a system kitchen.

[0003]

A conventional virtual reality experience apparatus for experiencing virtual reality by using virtual reality technology includes a goggle type eyephone which projects a three-dimensional stereoscopic image by computer graphics on a head.
It is necessary to put a data glove serving as a sensor for detecting the movement and position of a hand in one hand, and VR devices such as a data glove and an eyephone are complicated and costly, which has hindered their spread. In addition, conventional virtual reality experience devices can place only visual, auditory, and tactile sensations in the virtual reality world, but the user himself exists in the real world, and in a very limited space. It is not suitable for recreational facilities such as simulating a three-dimensional space constructed as a virtual reality while freely moving around using the whole body because it is enough to move. In order to enhance the pilot's piloting skills, a flight simulator that mimics a cockpit is used, and a flight simulator or a simulation car made to resemble a racing car is used for pilot training while watching the flight field of view displayed on the screen in front. A virtual reality generation device such as a racing machine that uses a driving experience device to perform driving training while watching the driving field of view displayed on the screen in front, responds to the driving and driving of the virtual reality world developed on the screen. Because it changes dynamically, you can experience virtual reality with considerable power.
However, even with such a virtual reality generating apparatus with a sense of movement, the user actually enjoys the sense of presence only in the visual image while being fixed to the seat. Therefore, an object of the present invention is to generate a virtual reality space by projecting a three-dimensional image in a real three-dimensional space, and to enable various simulated experiences while the user actually moves in this virtual reality space. Is to do.

[0004]

SUMMARY OF THE INVENTION The present invention comprises a ceiling defining a space above the ground or floor, and a three-dimensional image projector for projecting a three-dimensional image in the space by a light source provided at an appropriate position on the ceiling. The object is achieved by providing a virtual reality space generation device characterized by comprising:

The present invention also provides a virtual reality space generating apparatus characterized in that a three-dimensional image projector projects a three-dimensional image having an entire circumference as a visual field using a three-dimensional hologram. Is to achieve.

[0006]

According to the above construction, a three-dimensional image projector having a light source at an appropriate place on a ceiling covering the ground or a floor surface projects a three-dimensional image in a space defined by the ceiling, thereby allowing a virtual reality space to be displayed. Enables various simulated experiences while the user actually moves.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic perspective view showing an embodiment of the virtual reality space generating apparatus according to the present invention, and FIG.
And FIG. 3 is a plan view of the stereoscopic image shown in FIG. 2 for explaining the principle of stereoscopic vision. The virtual reality space generation device 1 shown in FIG. 1 is developed for an exploration zone installed in an amusement park or a game land, and has four sides of a site 3 covered with a ceiling 2 such as an awning or a dome. A virtual reality space such as a maze or a jungle can be generated by using the stereoscopic image projector 5 in the real three-dimensional space surrounded by the wall 4 and the ceiling 2 except for the exit 4b. The visitors can explore the unknown world along a maze 3a connecting the entrance 4a and the exit 4b. On the ceiling 2, a three-dimensional image projector 5 that projects an obstacle at each check point along the maze 3a is installed, and the visitor hits an obstacle that is projected as a three-dimensional image with the entire circumference as a visual field. At this point, a course is selected, and the user goes through the maze leading to the exit 4b. Here, in order to enhance the game characteristics when going through the maze by groping, a checkpoint is provided for each stereoscopic image encountered in the middle of the maze, and a stereoscopic image according to the answer content when solving the quiz prepared at the checkpoint Turn left or right, or go straight ahead and select a crossroad. Therefore, only the person who answered all questions correctly answers the maze 3a through the regular route.
And a person who gives an incorrect answer to the quiz will reach the exit 4b by a route other than the regular route. At that time, the experienced person who reached the exit 4b does not know whether the vehicle was able to take the regular route, but by submitting a route card describing the direction of passage at each checkpoint, it is possible to know the score of the maze traversal. it can.

As shown in FIG. 2, the three-dimensional image projector 5 includes a hologram recording film 6 in which an original image is exposed and developed and bleached by a special method described later, White light source 7 that projects light
The hologram recording film 6 is rolled up in a cylindrical shape having a vertical axis and arranged at an appropriate place on the site, and the white light source 7 is arranged on the ceiling above the cylindrical hologram recording film 6. However, the position of the white light source 7 must be matched with the position of the recording-time reference point light source, which will be described later.
When the three-dimensional hologram ram is illuminated by the white light source 7 arranged at a predetermined position, the diffracted light advances as shown in FIGS. 2 and 3, and R (red) G (green) B depends on the diffraction direction.
Each color of (blue) is dispersed, and the viewing zone is expanded in the vertical direction. The term “viewing area” as used herein refers to a space area where the eyes can be placed to see where the eyes can be placed, and the larger the viewing area, the easier it is to see the images. In order to observe the three-dimensional image, it is preferable to look at a little away from the surface of the hologram recording film 6 (hologram surface), and the three-dimensional image is reproduced inside the hologram recording film 6 which is rounded into a cylindrical shape. In this case, the elementary hologram corresponding to one frame of the still image photograph is reproduced while maintaining the light beam direction from the plane image at the time of recording. The image formed will be visible. That is, as shown in FIG. 3, for the right eye, for example, an image in which the portions of the reproduced image from the element holograms of the portion indicated by R on the hologram surface shown in FIG. Also for the left eye,
An image in which slightly different portions are connected in the horizontal direction due to the element hologram of the portion denoted by L appears. as a result,
The image synthesized by the light entering each eye has a slightly different viewing direction, and when viewed with both eyes, the difference in this image corresponds to binocular parallax (parallax). You will see a stereoscopic image.

The original image serving as the source of the three-dimensional image is a still camera 9 from a fixed distance centered on the subject 8 as shown in FIG.
The image is shot while being shifted in the horizontal direction by a certain angle at.
However, in this case, the movie may be shot continuously using a movie camera while rotating a subject such as a bonsai on a turntable. On the other hand, the original photographed in this manner is obtained by inverting the negative film and changing the original film to the original body film 10, and as shown in FIG. Projected onto A cylindrical lens 13 is disposed adjacent to the field lens 12, and the cylindrical lens 13 functions to converge a laser beam transmitted through the original positive film 10 to a certain surface. That is, the original positive film 1
The laser light illuminating 0 is converged in the horizontal direction near the hologram recording film 6 by the cylindrical lens 13, and converges in the vertical direction near the eye position when the reproduced image is observed by the field lens 12. Let me do.
That is, the field lens 12 converges the laser beam so as to enter the eyes of the observer, and the cylindrical lens 13 functions to narrow the laser beam perpendicular to the hologram surface. Therefore, the field lens 12 is a spherical lens having a relatively long focal length, and the cylindrical lens 13 is a cylindrical lens having a short focal length.
A lens is used. A slit 14 is arranged at the position of the light beam that is narrowed down by the cylindrical lens 13 in the vertical direction, and the hologram recording film 6 is placed immediately behind the slit 14. Further, the hologram surface is irradiated with reference light from a reference point light source 15 obliquely upward, and the hologram recording film 6 is gradually translated in the horizontal direction while changing the frames of the original image one after another. Thus, the original image is sequentially exposed as a hologram to the hologram recording film 6, and each linear hologram becomes the above-described element hologram. The reference light is guided from the same laser light source as the laser light for projecting the original image through another optical path and reflected by the reference point light source 15 formed of a plane mirror.

The hologram recording film 6 thus exposed is turned into a three-dimensional hologram by being rounded into a cylindrical shape, and is installed as a three-dimensional image projector 5 together with a white light source 7 at each check point, so that the three-dimensional hologram can be observed from the entire circumference in the horizontal direction. Generates an image. For this reason, a visitor who steps into the exploration zone can slip through between the three-dimensional images or move around the three-dimensional image in an arbitrary direction. In addition, the three-dimensional image displayed three-dimensionally at each checkpoint can be easily changed by changing the three-dimensional hologram in use to a hologram recording another original image. The space can be redesigned. Therefore, unlike an exploration zone or the like that is constructed using a structure similar to a stage device using a prop, it is possible to easily change the device at any time, and visitors who have already experienced can always enjoy a fresh simulated experience. Also, unlike virtual reality technology, there is no need for special equipment such as wearing a goggle-shaped iPhone on the head or putting on a data glove in one hand, so visitors can enjoy the exploration zone in the style of the visit. Can be. As described above, according to the virtual reality space generation device 1, any object that actually exists can be displayed at any position as a stereoscopic image with the entire circumference as a viewing zone, and thus the light source 7 of the stereoscopic image projector 5 can be displayed. If there is only a floor or ground covered by the ceiling 2 for installing the
There is no need to dispose any object except for the installation space of the hologram recording film 6 that receives light from the hologram recording film 6, and various objects can be displayed as virtual reality, all of which can be recognized through visual perception. It is free to move around and swivel around the stereoscopic image. In addition, since a structure that cannot be formed due to cost or time can be three-dimensionally displayed as a virtual reality only by an optical system, a variety of spatial representations are possible. Therefore, for example, as a virtual reality that passes from the entrance 4a to the exit 4b. Maze 3
Forming a game space that moves a accurately and in the shortest time, or creating a golf course with trees and bunkers arbitrarily arranged as virtual reality, and enjoying golf in a course that spreads out into the field of view as a stereoscopic image You can also. Furthermore, for example, before starting construction, present the floor plan of the room as virtual reality based on the design drawing of the temporary design stage as a plane plan, and actually walk around in the room three-dimensionally displayed as virtual reality. A simulated experience assuming real life is possible, and the impression at that time is reflected in the design and construction to make use of the ideal house building, or in a car-licensed driving school etc. The present invention can be applied to various fields, for example, a method of operating a vehicle using a road environment projected and represented as virtual reality can be taught.

Since the three-dimensional image projector 5 is configured to project a three-dimensional image having a viewing area around the entire circumference using a three-dimensional hologram,
The hologram recording film 6 is exposed as a hologram to the hologram recording film 6 by irradiating the original image of the subject photographed from all directions using a still camera or a movie camera while illuminating one frame per frame with a laser beam.
Is developed and bleached, then rounded into a cylinder having a vertical axis, and the hologram is illuminated with a white light source 7 from the position of the reference point light source at the time of recording above the center line of the cylinder, so that a 360 ° viewing area is formed in the cylinder. 3D image can be projected, and if only the original image hologram is changed, the projected 3D image can be easily changed. Therefore, various subjects can be reproduced as a 3D image, and the three-dimensional image in the space of the three-dimensional image projector 5 can be reproduced. It is possible to create various virtual reality spaces according to the arrangement. In the above embodiment, the operation of periodically changing the three-dimensional hologram was manually performed. However, as in the virtual reality space generation device 21 shown in FIG. 6, for example, the three-dimensional hologram is removed from the underground space 22 provided below the floor surface. It is possible to change as needed in accordance with the space configuration of the virtual reality space by making it vertically movable and changing or repositioning it vertically and horizontally in the underground space 22 as well as being able to move up and down.

[0012]

As described above, according to the present invention,
Any object that actually exists can be displayed in any place as a stereoscopic image with the entire circumference as the viewing zone, so if there is only a floor or ground covered with a ceiling for installing the light source of the stereoscopic image projector There is no need to place any objects except for the space where the stereoscopic projector is installed.Since various objects can be displayed as virtual reality, all of which can be recognized through vision, it is possible to move between stereoscopic images and move between them. It is possible to freely rotate around the three-dimensional image, and it is possible to three-dimensionally display a structure that can not be shaped due to cost and time as a virtual reality only with the optical system, so it is possible to represent a wide variety of spatial expressions. Therefore, for example, a game space that moves accurately and in the shortest time in a maze as a virtual reality from the entrance to the exit, or a golf course in which trees, bunkers, and the like are arbitrarily arranged is virtual. It can be created as a reality and you can enjoy golf in a course that spreads out into the field of view as a three-dimensional image.Before starting construction, the floor plan is virtual based on the plan drawing of the temporary design stage as a plan. It is possible to create a simulated experience assuming real life by actually walking around in a room that is presented as reality and three-dimensionally displayed as virtual reality, and reflects the impression at that time in design and construction and makes use of it in an ideal house building In addition, it is possible to project various road spaces on a limited site in a driving school with a car license, etc., and to teach how to operate the vehicle using the road environment expressed as virtual reality. It has excellent effects such as being applicable to various fields. Also, the present invention
Since the three-dimensional image projector uses a three-dimensional hologram to project a three-dimensional image with the entire perimeter as the viewing zone, the original image of the subject taken from all directions using a still camera or movie camera is taken as one frame. One frame is exposed as a hologram to the hologram recording film while illuminating with a laser beam,
The exposed hologram recording film is developed and bleached, then rounded into a cylinder with a vertical axis, and the hologram is illuminated with a white light source from the position of the reference point light source at the time of recording above the center line of the cylinder. A stereoscopic image with a 360 ° viewing area can be projected, and the projected stereoscopic image can be easily changed by changing the original image hologram, so that various subjects can be reproduced as a stereoscopic image. The effect is that various virtual reality spaces can be created according to the arrangement in the space.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of a virtual reality space generation device of the present invention.

FIG. 2 is a diagram showing a three-dimensional image projected by the three-dimensional image projection device shown in FIG.

FIG. 3 is a plan view of the stereoscopic image shown in FIG. 2 for explaining the principle of stereoscopic vision.

FIG. 4 is a schematic perspective view for explaining an original image photographing method for a hologram.

FIG. 5 is a schematic perspective view for explaining a hologram forming method.

FIG. 6 is a schematic perspective view showing another embodiment of the virtual reality space generating device of the present invention.

[Explanation of symbols]

 1, 21 virtual reality space generator 2 ceiling 3 site 5 stereoscopic image projector 6 hologram recording film 7 white light source

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06T 17/40 G06T 17/40 F G09B 9/00 G09B 9/00 Z 9/02 9/02

Claims (2)

[Claims] 1. A virtual system comprising: a ceiling that defines a space above the ground or floor; and a stereoscopic image projector that projects a stereoscopic image in the space by a light source provided at an appropriate position on the ceiling. Real space generator. 2. The virtual reality space generating apparatus according to claim 1, wherein the stereoscopic image projector projects a stereoscopic image having a viewing area around the entire circumference using a stereoscopic hologram. apparatus.