JP2010160362A - Three-dimensional display apparatus, three-dimensional display method, three-dimensional display object, three-dimensional image forming device, three-dimensional image forming method, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable perception of stereognostic sense of a three-dimensional solid image even when the back optical quantity of a display surface is small. <P>SOLUTION: A two-dimensional image is generated by projecting a displaying object from the line-of-sight direction of an observer to two display surfaces existing at different depth positions in the view from the observer, the color saturation of the generated two-dimensional image is independently varied for each display surface, and the generated two-dimensional image is displayed on the two display surfaces. The color saturation of the two-dimensional image to be displayed on the display surface far from the observer is made lower than that of the two-dimensional image to be displayed on the display surface close to the observer, of the two display surfaces. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a three-dimensional display device, a three-dimensional display method, a three-dimensional display object, a three-dimensional image creation device, a three-dimensional image creation method, a program, and a recording medium. The present invention relates to a technique for displaying a three-dimensional stereoscopic image by displaying a projected two-dimensional image in an overlapping manner with an arbitrary depth width.

Various proposals have been made for a three-dimensional display method that can perceive depth positions, but a three-dimensional DFD (Depth-Fused-3D) method that displays a three-dimensional stereoscopic image by superimposing a plurality of two-dimensional images. The display method is attracting attention because it is relatively less tiring even when viewed for a long time and can perceive a natural stereoscopic image. (See Patent Document 1 below)
The DFD three-dimensional display method is a method of displaying a three-dimensional stereoscopic image by superimposing a plurality of two-dimensional images. In this three-dimensional display method, a two-dimensional image is displayed on a plurality of display surfaces having different depths. By displaying and changing the brightness or transparency of the two-dimensional image displayed on each display surface independently, the observer can display a three-dimensional stereoscopic image capable of continuous depth expression when viewed from the front. .
In addition, in this DFD 3D display method, a gradation effect is used for a 2D image displayed on each display surface, so that when viewed from a position deviated from the front, it appears to be connected without a sense of incongruity. There has been proposed a technique capable of realizing a three-dimensional stereoscopic image. (See Non-Patent Document 1 below)

This three-dimensional display method using the gradation effect is a display surface close to the observer when displaying a two-dimensional image projected from the viewing direction of the observer on a plurality of display surfaces at different depth positions as viewed from the observer. The two-dimensional image displayed on the (front surface) is provided with gradation in which the luminance is changed stepwise, and the two-dimensional image displayed on the display surface (rear surface) far from the observer is displayed on the front surface. A three-dimensional stereoscopic image can be displayed by displaying the same at a lower luminance than the luminance of the portion displayed at the forefront of the two-dimensional image.
In this three-dimensional display, a display device in which an electronic display is stacked in the depth direction, a structure in which display surfaces with different depth positions are stacked using a projector or a half mirror, and a two-dimensional image printed on a transparent film is set to a depth position. It is possible to express a three-dimensional stereoscopic image by changing and superimposing it. The two-dimensional image printed on the transparent film changes the luminance by changing the light transmittance.

  As prior art documents related to the invention of the present application, there are the following.

Japanese Patent No. 3022558 Ando et al., Proposal of wide viewing angle content expression method in DFD display, 3D image technology workshop sponsored by the Institute of Image Information and Television Engineers, Proceedings, P27

However, in the conventional 3D display method of the DFD system, the two-dimensional images that have been subjected to the luminance distribution are displayed in an overlapping manner. Therefore, if the amount of light on the back of the display surface is small, the luminance of the two-dimensional image decreases, and the luminance that has been distributed. The difference of becomes smaller. For this reason, it is difficult to perceive the three-dimensional effect of the three-dimensional stereoscopic image.
The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a three-dimensional display method and apparatus using a DFD method even if the amount of back light on the display surface is small. It is an object of the present invention to provide a technique that makes it possible to perceive a stereoscopic effect of a stereoscopic image.
Another object of the present invention is to provide a three-dimensional display object using the above-described three-dimensional display method.
Another object of the present invention is to provide a 3D image creating apparatus and a 3D image creating method for generating a 2D image to be displayed on the 3D display object.
Another object of the present invention is to provide a program for causing a computer to execute the above-described 3D image creation method and a computer-readable recording medium on which the program is recorded.
The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

Of the inventions disclosed in this application, the outline of typical ones will be briefly described as follows.
(1) A three-dimensional display method for generating a three-dimensional stereoscopic image by displaying a two-dimensional image on two display surfaces having different depth positions, and two displays at different depth positions as viewed from the observer Generating a two-dimensional image obtained by projecting the display target object from the line of sight of the observer with respect to the surface, and changing the saturation of the generated two-dimensional image independently for each of the display surfaces, The generated two-dimensional image is displayed on two display surfaces.
(2) In (1), the saturation of the two-dimensional image displayed on the display surface close to the observer, the saturation of the two-dimensional image displayed on the display surface far from the observer among the two display surfaces. It is characterized by being lower than the degree.
(3) In (1) or (2), the two-dimensional image is placed on the two display surfaces so that the two-dimensional image overlaps when viewed from one point on a line connecting the right eye and the left eye of the observer. The width of the two-dimensional image to be displayed and displayed on the display surface far from the observer is made larger than the width of the two-dimensional image displayed on the display surface close to the observer.
(4) In (3), a point on the line connecting the right eye and the left eye of the observer is set as a point between the right eye and the left eye.
(5) In (3), one point on the line connecting the observer's right eye and left eye is defined as the center point of the right eye and left eye.
(6) In any one of (3) to (5), the two-dimensional images displayed on the two display screens are overlapped as seen from one point on a line connecting the observer's right eye and left eye. On the other hand, an enlargement / reduction deformation is applied in the left-right direction as viewed from the observer.
(7) In any one of (1) to (6), two two-dimensional images displayed on the display surfaces of the same display target object with the depth position between the display surfaces displaying the two-dimensional image. Is a range having a common region when viewed with a single eye from the positions of the right and left eyes of the observer.
(8) A three-dimensional display device that executes the three-dimensional display method according to (1) to (7).

(9) Three-dimensional display for displaying a three-dimensional stereoscopic image by displaying a two-dimensional image of the first display object and a two-dimensional image of the second display object with an arbitrary depth width. The first two-dimensional image that is an object and is displayed on the first display surface close to the observer is a display surface between the first display surface and the second display surface far from the observer. The outline area 1 has a width proportional to the interval, and the outline area 1 has a boundary portion between the image inside the outline area 1 and the outline area 1 inside the outline area 1. The second two-dimensional image displayed on the second display surface is proportional to the display surface interval. A contour region 2 having a width and a sum of widths proportional to a product of a tangent of the display surface interval and a predetermined viewing angle; The color of the contour region 2 is equal to the color of the image inside the contour region 2, and the saturation of the color of the second two-dimensional image is the contour region 1 of the first two-dimensional image. Lower than the saturation of the image inside.

(10) In the three-dimensional display object according to (9), the two-dimensional image of the first display object displayed on the first display surface and the second display object displayed on the second display surface A three-dimensional image creation method for creating a two-dimensional image of an object, comprising: an image of a display object; a display surface interval between the first display surface and the second display surface; A first step of capturing and holding a region angle and a saturation ratio of the second two-dimensional image with respect to the first two-dimensional image; and a value proportional to the display surface interval as a figure outline region width A second step of generating an image having a contour region 1 in which the width of the contour region of the image of the display object is the graphic contour region width, and the third step Contour that monotonously increases the transparency of the contour region 1 of the image generated in step 1 toward the outside A fourth step of generating an image in which gradation is provided in the region 1, a fifth step of outputting the image generated in the fourth step as a first two-dimensional image, the display surface interval, and the viewing In the sixth step and the third step, a value proportional to the product of the tangent of the area angles is set as a deviation width of the image size of the second two-dimensional image with respect to the image size of the first two-dimensional image. As the contour region of the generated image, there is a contour region 2 obtained by adding the shift width determined in the sixth step to the contour region 1, and the color of the contour region 2 is changed to the first region. A seventh step of generating an image having a contour region 2 that is equal to the color of the image inside the contour region 1 of the image generated in step 3, and the first step with respect to the first two-dimensional image. Saturation ratio of 2D image of 2 Based on the eighth step of converting the color saturation of the image having the contour region 2 generated in the seventh step, and the image of which the saturation is converted in the eighth step, the second step And a ninth step of outputting as a two-dimensional image.
(11) A three-dimensional display device that executes the three-dimensional image creation method according to (10).
(12) A program for causing a computer to execute the three-dimensional image creation method according to (10).
(13) A computer-readable recording medium on which the program according to (12) is recorded.

The effects obtained by the representative ones of the inventions disclosed in the present application will be briefly described as follows.
According to the present invention, it is possible to perceive a three-dimensional effect of a three-dimensional stereoscopic image even if the amount of back light on the display surface is small.

It is a figure for demonstrating the principle of the three-dimensional display apparatus of Example 1 of this invention. It is a figure for demonstrating the principle of the three-dimensional display apparatus of Example 1 of this invention. It is a figure for demonstrating the principle of the three-dimensional display apparatus of Example 1 of this invention. It is a figure for demonstrating the overlap position of the 2D-ized image displayed on each surface in the three-dimensional display apparatus of Example 1 of this invention. It is a figure for demonstrating schematic structure of the three-dimensional display apparatus of Example 2 of this invention. It is a figure which shows one Example which can change the position of an image surface more flexibly by including a lens etc. in the optical system of Example 2 of this invention. It is a figure which shows one Example when the two-dimensional display apparatus increases in Example 2 of this invention. FIG. 6 is a diagram showing an embodiment in which an optical system that projects an image from a projector onto a scattering plate is configured using two projector-type two-dimensional display devices and a scattering plate in the three-dimensional display device according to Embodiment 2 of the present invention. is there. In Example 2 of this invention, it is a figure which shows another one Example which adds an optical apparatus. It is a figure which shows schematic structure of the volume type three-dimensional display apparatus of the varifocal mirror system of Example 3 of this invention. It is a figure which shows schematic structure of the volume type three-dimensional display apparatus of the vibration screen system of Example 3 of this invention. It is a figure which shows schematic structure of the three-dimensional display apparatus of the rotation LED system of Example 4 of this invention. It is a figure which shows schematic structure of the three-dimensional display apparatus of the synthesizer system of Example 5 of this invention. It is a perspective view which shows schematic structure of the three-dimensional display object of Example 6 of this invention. In the three-dimensional display object of Example 6 of this invention, it is the figure which looked at the state before bonding a transparent board and the transparent film which printed the two-dimensional image of the figure of a display target object from the top. It is a block diagram which shows schematic structure of the three-dimensional image creation apparatus of Example 6 of this invention. It is a flowchart which shows the process sequence of the three-dimensional image creation method of Example 6 of this invention. It is a graph which shows the relationship of the figure outline line area width with respect to the display surface space | interval of the front and back display surfaces. It is a graph which shows the three-dimensional effect of drawing with respect to the setting position of the transparency middle point of the color of the figure outline area in the figure outline area width. It is a graph which shows the display surface space | interval of the display surface before and behind with respect to a viewing zone angle, and the expansion width | variety of the figure width of a front and back display surface. It is a graph which shows the viewing zone angle with respect to the display surface space | interval of the front and back display surfaces, and the expansion width of the figure width of the front and rear display surfaces. It is a graph which shows the relationship between the color saturation ratio of the figure of the figure image of a back display surface, and the three-dimensional effect of a figure image when the color saturation ratio of the figure of the figure image of a front display surface is 100%. It is a figure which shows an example of the two-dimensional image of the figure printed on the front transparent film and the rear transparent film. It is a figure which shows the figure of the three-dimensional solid image observed from an observer with the three-dimensional display object shown in FIG. 13, when using the two-dimensional image shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In all the drawings for explaining the embodiments, parts having the same functions are given the same reference numerals, and repeated explanation thereof is omitted.
In this embodiment, the expression “surface” on which an image is arranged is used. This is the same expression as an image surface frequently used in optics and the like, and means for realizing such an image surface is as follows. Various optical elements such as, for example, a lens, a total reflection mirror, a partial reflection mirror, a curved mirror, a prism, a polarizing element, and a wave plate, and a CRT (cathode ray tube) display, a liquid crystal display, and an LED (Light Emission Diode) display, for example. What can be achieved by many optical combination technologies using two-dimensional display devices such as plasma displays, FED (Field Emission Display), DMD (Digital Mirror Display), projection display, line drawing display, etc. it is obvious.
In addition, a case where a three-dimensional stereoscopic image to be presented is mainly displayed as a two-dimensional image on two surfaces will be described. Further, the two-dimensional image displayed on the two display surfaces is a figure, a character, a symbol, a logo mark, or the like. .

[Example 1]
1 and 2 are diagrams for explaining the principle of the three-dimensional display device according to the first embodiment of the present invention.
The principle of the three-dimensional display device of this embodiment is as follows. First, as shown in FIG. 1, two surfaces, for example, a surface (101, 102) (the surface 101 is closer to the viewer 100 than the surface 102). In order to display two two-dimensional images on these surfaces (101, 102), an optical system 103 is constructed using a two-dimensional display device and various optical elements (details will be described later). .
As the above-described two-dimensional display device, for example, a CRT, a liquid crystal display, an LED display, a plasma display, an FED display, a projection type display, a line drawing type display or the like is used, and as an optical element, for example, a lens, a total reflection mirror, A partial reflecting mirror, a curved mirror, a prism, a polarizing element, a wave plate, or the like is used.
Next, as shown in FIG. 2, an image (hereinafter referred to as “2D”) of a three-dimensional object 104 desired to be presented to the viewer 100 projected onto the plane (101, 102) from the direction of the eyes of both eyes of the viewer 100. 2D image (105, 106), which is called “converted image”.
As a method for generating the 2D image, for example, a method using a two-dimensional image obtained by photographing the object 104 with a camera from the line-of-sight direction, a method of combining from a plurality of two-dimensional images taken from different directions, or computer graphics There are various methods such as a synthesis technique based on the above and a method using modeling.

As shown in FIG. 1, the 2D image (105, 106) is a point on a line connecting the right eye and the left eye of the observer 100 (for example, the right eye and the left eye) on both the surface 101 and the surface 102, respectively. Display so as to overlap when viewed from the center point of the eye. This can be achieved, for example, by controlling the arrangement of the center position and the gravity center position of each 2D image (105, 106) and the enlargement / reduction of each image.
An important point of the present invention is that when the saturation of the 2D image 105 displayed on the side closer to the viewer 100 is set to 100% on the apparatus having the above configuration, FIG. As shown, the saturation of the 2D image 106 displayed on the side far from the observer is set to 20 to 50% and displayed.
By displaying in this way, even if the 2D image (105, 106) is displayed due to the physiological or psychological factors or illusion of the viewer 100, the viewer 100 is as if it is three-dimensional. It feels like a three-dimensional display object.
The three-dimensional stereoscopic image of the present invention is viewed from one point on the line connecting the right eye and the left eye of the viewer 100, and the 2D image 105 and the rear surface 102 of the front surface 101 overlap with each other under the visual acuity of the viewer 100. A 2D image 105 that displays the 2D image 106 on the display surface and displays the width of the 2D image 106 displayed on the display surface 102 on the side far from the viewer 100 on the display surface 101 on the side close to the viewer 100. Occurs when the width is larger than.

The width A ′ of the 2D image 106 displayed on the display surface 102 on the side far from the observer 100 is A ′ = the width A of the 2D image 105 displayed on the display surface 101 on the side close to the viewer 100. 2 × (0.1 × B × tan θ) + A (B is a distance between two display surfaces, and θ is a viewing zone angle).
When the width A ′ of the 2D image 106 displayed on the display surface 102 on the side far from the observer 100 is narrower than the width calculated by the above calculation formula, the stereoscopic effect of the three-dimensional stereoscopic image decreases, and the observer When the width A ′ of the 2D image 106 displayed on the display surface 102 on the side far from 100 becomes the same width as the width A of the 2D image 105 displayed on the display surface 101 on the side close to the viewer 100, the three-dimensional solid is displayed. The image is not observed, but is observed as two front and rear two-dimensional images.
As shown in FIG. 4A, the three-dimensional stereoscopic image of the present invention appears in a region where the front and rear two-dimensional images overlap in the right eye image and the left eye image. For this reason, the distance between the front and rear surfaces is greatly separated. For example, as shown in FIG. 4B, the front and rear 2D images (105, 106) do not overlap in the right eye image and the left eye image. Then, the three-dimensional stereoscopic image of the present invention is not observed, but is observed as two front and rear two-dimensional images.
Therefore, in this embodiment, in order to express a three-dimensional stereoscopic image, the depth position between the display surfaces (101, 102) for displaying the 2D image (105, 106) is set to the same display target object. The two 2D images (105, 106) displayed on these surfaces are ranges having a common area when viewed with a single eye from the positions of the right eye and the left eye of the observer 100. That is, in a state that is not a common region, this effect (the effect invented by the three-dimensional stereoscopic image) disappears, and the observer 100 feels the front and rear surfaces apart in the depth direction.

[Example 2]
FIG. 5 is a diagram for explaining a schematic configuration of the three-dimensional display device according to the second embodiment of the present invention.
As shown in FIG. 5A, the three-dimensional display device according to the present embodiment first includes two two-dimensional display devices (121, 122) and a total reflection mirror 123 (for example, reflectance / transmittance = 100). / 0), a partial reflecting mirror 124 (for example, reflectance / transmittance = 50/50) is used to constitute an optical system for arranging the two two-dimensional images described in the above-described embodiments. .
By changing the respective arrangements, the image plane 125 that the display of the two-dimensional display device 121 is reflected by the total reflection mirror 123 and transmitted through the partial reflection mirror 124, and the display of the two-dimensional display device 122 is the partial reflection mirror 124. It is possible to arrange the image plane 126 formed by reflection at a different position in the depth direction. Since such an optical system uses only a mirror, it has an advantage that image quality is hardly deteriorated.
As the two-dimensional display device (121, 122), for example, a CRT, a liquid crystal display, an LED display, a plasma display, an FED display, a DMD display, a projection display, a line drawing display, or the like is used.
However, even if the total reflection mirror 123 in this embodiment is replaced with a partial reflection mirror, the brightness of the image of the two-dimensional display device 121 is lowered, but it is obvious that the effect of the present invention can be obtained similarly.
In the present embodiment, the case where the order of the depth position of the image plane is the same as the order of the depth position of the two-dimensional display device has been described, but by changing the distance from the total reflection mirror or the partial reflection mirror to the two-dimensional display device, It is clear that the order of the image plane depth positions can be freely changed.

Further, as shown in FIG. 5B, the two-dimensional display device 121 is directly arranged without using the total reflection mirror 123, and the partial reflection mirror 124 (for example, reflectance / transmittance = 50/50) is used. The optical system for arranging the two two-dimensional images described in the above embodiments can be configured.
That is, an image plane 125 that can be displayed on the two-dimensional display device 121 through the partial reflector 124 and an image plane 126 that can be displayed on the two-dimensional display device 122 by the partial reflector 124 are different in the depth direction. Can be placed in position.
In the present embodiment, the case where the order of the depth positions of the image plane is the same as the order of the depth positions of the two-dimensional display device has been described, but this image plane can be changed by changing the distance from the partial reflector to the two-dimensional display device. Obviously, the order of the depth positions can be changed freely.

FIG. 6 shows an embodiment in which the position of the image plane can be changed more flexibly by including a lens or the like in the optical system.
As shown in FIG. 6A, two two-dimensional display devices (131, 132), a total reflection mirror 133 (for example, reflectance / transmittance = 100/0), a partial reflection mirror 134 (for example, For example, by adding convex lenses (137, 138) to the configuration of (reflectance / transmittance = 50/50) and changing the image position, the image plane 135 and the image plane are limited due to the size restrictions of the apparatus. It can be seen that the positional relationship 136 can be set more flexibly. However, even if the total reflection mirror 133 in this embodiment is replaced with a partial reflection mirror, the brightness of the image of the two-dimensional display device 131 is lowered, but it is clear that the effect of the present invention can be obtained similarly.
In this embodiment, the case where the order of the depth position of the image plane is the same as the order of the depth position of the two-dimensional display device has been described. However, the distance from the total reflection mirror or the partial reflection mirror to the two-dimensional display device can be changed. It is obvious that the order of the image plane depth positions can be freely changed by the arrangement of the optical system.

Further, as shown in FIG. 6B, the two-dimensional display device 131 is directly arranged without using the total reflection mirror 133, and the configuration of the partial reflection mirror 134 (for example, reflectance / transmittance = 50/50) is obtained. For example, by adding convex lenses (137, 138) and changing the image position, the positional relationship between the image plane 135 and the image plane 136, which is limited by the size restrictions of the apparatus, can be set more flexibly.
Of course, the use of a lens optical system such as a combination lens as well as a convex lens may be advantageous in terms of distortion and the like, as in a normal lens optical system. In this case, the virtual image in which the two-dimensional display device is installed at a position closer than the focal length of the lens is used as an example. However, a real image in which the two-dimensional display device is installed at a position farther than the focal length of the lens is shown. Obviously, the same can be done when used.
In this embodiment, the case where the order of the depth position of the image plane is the same as the order of the depth position of the two-dimensional display device has been described. However, the distance from the partial reflector to the two-dimensional display device can be changed, or an optical system such as a lens. It is clear that the order of the depth positions of the image plane can be freely changed by the arrangement of.

FIG. 7 shows an embodiment where the number of two-dimensional display devices is further increased.
For example, a plurality of two-dimensional display devices (141 to 145), a total reflection mirror 146 (for example, reflectance / transmittance = 100/0), and a partial reflection mirror 147 (for example, reflectance / transmittance = 50/50) 148 (for example, reflectivity / transmittance = 33.3 / 66.7), 149 (for example, reflectivity / transmittance = 25/75), 150 (for example, reflectivity / transmittance = 20/80) In this example, an optical system for arranging a plurality of two-dimensional images is configured.
By changing each arrangement, the image plane 151 that the display of the two-dimensional display device 141 is reflected by the total reflection mirror 146 and transmitted through the partial reflection mirrors (147 to 150), and the two-dimensional display devices (142 to 145). ) Can be arranged at different positions in the depth direction. The image planes (152 to 155) are reflected by the partial reflecting mirrors (147 to 150) and transmitted through the partial reflecting mirrors. Since such an optical system uses only a mirror, it has an advantage that image quality is hardly deteriorated.
In this example, the case where the number of the two-dimensional display devices is five has been described. However, it is apparent that the same configuration can be achieved with other numbers. Also in this case, it is apparent that the position of the image plane can be easily controlled by adding a lens optical system as shown in FIG. 6 with respect to FIG. However, even if the total reflection mirror 143 in this embodiment is replaced with a partial reflection mirror, the brightness of the image of the two-dimensional display device 141 is lowered, but it is clear that the effect of the present invention can be obtained similarly.
In the present embodiment, the case where the order of the depth position of the image plane is the same as the order of the depth position of the two-dimensional display device has been described, but by changing the distance from the total reflection mirror or the partial reflection mirror to the two-dimensional display device, It is clear that the order of the image plane depth positions can be freely changed.

8 shows two projector type two-dimensional display devices (for example, CRT type, LCD type, ILV type, DMD type, etc.) (161, 162) and a scattering plate (163, 164). An embodiment in which an optical system for arranging a plurality of two-dimensional images by projecting an image is shown.
Here, the scattering plates (163, 164) are scattered / transmitted or reflected, such as a polymer dispersed liquid crystal element, a holographic polymer dispersed liquid crystal element, or a combination element of a liquid crystal and a multi-lens array. It is assumed that the transmission / blocking can be controlled and the shutters (165, 166) can control the transmission / blocking such as a twisted nematic liquid crystal element, a ferroelectric liquid crystal element, or a mechanical shutter element.
The scattering positions of the scattering plates (163, 164) are changed, and the images are projected onto the scattering plates (163, 164) by aligning the respective focus surfaces of the projector type two-dimensional display devices (161, 162). In addition, it is formed on the scattering plate (163, 164) in a time-sharing manner by driving the scattering / transmission timing of the scattering plate (163, 164) and the transmission / blocking timing of the shutter (163, 164). The depth position of the image plane (167, 168) can be controlled.
Thus, when a projector is used, there is an advantage that the degree of freedom of layout of the apparatus is great. Further, it is obvious that the projector lamp may be turned on / off instead of the shutter.
In this embodiment, the case where there is an image plane in the vicinity of, inside, or behind the three-dimensional display device has been mainly described. By adding an optical device to these image planes, the three-dimensional display device It is also possible to easily arrange them apart or in front.
One example thereof is shown in FIG. For example, it is obvious that the internal image plane 182 can be converted to the position of the external image plane 184, for example, by arranging, for example, a lens optical system 183 on the front surface of the optical system 181 as shown in FIG.
In such a case, since the image is reproduced while floating in the space, there is an advantage that the observer can feel it more three-dimensionally than when the image is inside or behind the apparatus.

[Example 3]
The third embodiment of the present invention is an embodiment in which an optical system for arranging a plurality of two-dimensional images in the first embodiment is configured using a volumetric three-dimensional display device.
For example, as described in “3D Display” (by Chihiro Masuda, Sangyo Tosho Co., Ltd.), a volumetric 3D display device is a 2D image sampled in the depth direction (2D conversion in the first embodiment). This is a method of performing three-dimensional display by stacking the same meanings as images.
Examples of the volume type three-dimensional display device include a varifocal mirror method and a vibrating screen method.
As shown in FIG. 10, the varifocal mirror type volumetric three-dimensional display device transmits an image displayed on a two-dimensional display device 204 such as a TV (television) through a half mirror 201 and a varifocal mirror 202. The observer 100 is configured to observe a three-dimensional stereoscopic image (virtual image) 203.
A varifocal mirror 202, which is a key device in this method, is a device in which, for example, a metal such as aluminum or a dielectric multilayer film is coated on the surface of a woofer (low sound generating speaker) to form a concave mirror. When it is vibrated like a woofer, the curvature of this concave mirror part changes, and its focal length can be changed.
For this reason, the position of, for example, a virtual image or a real image of the two-dimensional display device 204 can be changed with the change in the focal length. Accordingly, in synchronization with the change in the focal length of the varifocal mirror 202, a depth sampled image (a two-dimensional image sampled by cutting a three-dimensional object in the depth direction) is displayed on the two-dimensional display device 204. A three-dimensional stereoscopic image can be displayed in a time-sharing manner (using an afterimage effect).
In the present invention, by using this method and apparatus, a plurality of two-dimensional image planes can be provided by repeating short-time display of the two-dimensional display device a plurality of times within the afterimage time. Further, the depth position of the image plane can be designated by the vibration position of the varifocal mirror 202.
Therefore, the effect of the present invention can be obtained by displaying on these image planes while changing the saturation of the 2D image described in the first embodiment. This method has an advantage that a plurality of image planes can be easily formed, in addition to the advantage that there are few movable parts.

As shown in FIG. 11, a vibrating screen type volumetric three-dimensional display device includes a vibrating screen 301 that vibrates in the depth direction (for example, a diffusion plate, a lenticular plate, a rope lens plate, etc.), and an optical including a lens. A system 302, a scanning device for raster scanning (horizontal / vertical scanning) of laser light (consisting of a horizontal / vertical scanning device such as a light deflecting device using a polygon mirror, a galvanometer mirror, etc.) 303, and a laser light source 304 Etc.
In this method, when the vibrating screen 301 is at a desired depth position, the scanning device 303 is driven at high speed to write a sampled image at the depth position by changing the depth position and repeating within the afterimage time. A three-dimensional stereoscopic image can be reproduced.
In the present invention, using this method and apparatus, a plurality of two-dimensional image planes can be provided by repeating high-speed writing of a sampled image on the vibrating screen 301 a plurality of times within the afterimage time. The depth position of the image plane can be designated by the position of the vibration screen 301. Therefore, the effect of the present invention can be obtained by displaying on these image planes while changing the saturation of the 2D image described in the first embodiment.
This method has an advantage that distortion on the screen surface can be easily suppressed and an advantage that a plurality of image surfaces can be easily formed.

[Example 4]
Example 4 of the present invention is a rotating LED type three-dimensional display device. As shown in FIG. 12A, an LED display device 401 composed of an LED array, a rotating device 402 for rotating the LED display device 401, and an image. A video supply device 403 for supplying a signal to the LED display device 401 is configured.
In this method, it is necessary to sample a three-dimensional object with polar coordinates centered on the rotation axis of the LED display device 401.
Using such a sampled image in polar coordinates, displaying a two-dimensional image sampled in polar coordinates in synchronization with the rotation of the LED display device 401 on the LED display device 401 is repeated while changing the rotation angle. Can reproduce a three-dimensional stereoscopic image.
In the present invention, using this method and apparatus, a desired two-dimensional image plane is converted into the polar coordinates, and the converted position coordinates are displayed at high speed within the afterimage time while changing the rotation angle. By repeating, a plurality of two-dimensional image planes can be provided.
Then, the effect of the present invention can be obtained by changing and displaying the saturation of the 2D image described in the first embodiment on these image planes.
This method has an advantage that it is easy to suppress distortion on the screen surface, an advantage that the LED display device 401 can be rotated relatively easily, and an advantage that a plurality of image surfaces can be easily formed.

[Example 5]
The fifth embodiment of the present invention is a synthesizer type three-dimensional display device. As shown in FIG. 12B, a film or a two-dimensional display device (for example, a CRT or a liquid crystal display) 501 on which a two-dimensional image is recorded, and a prism. And a conversion optical system 502 such as a mirror and a projection drum 503. Reference numeral 504 denotes a light source, and 505 denotes a shutter.
The projection drum 503, which is a key device in this method, is made of a transparent material having a changed thickness (for example, glass or transparent plastic such as acrylic), and forms an image of the above-described film or the display of the two-dimensional display device 501 through this. Let
This method utilizes the fact that the thickness changes when the projection drum 503 is rotated, thereby changing the position of the image plane. Therefore, in synchronization with this change in the image plane position, a depth sampled image (a two-dimensional image sampled by cutting a three-dimensional object in the depth direction) is displayed on the two-dimensional display device 501 in a time-sharing manner. A three-dimensional stereoscopic image can be displayed (using an afterimage effect).
In the present invention, by using this method and apparatus, a plurality of two-dimensional image planes can be provided by repeating short-time display of a film or a two-dimensional display device a plurality of times within the afterimage time. Further, the depth position of the image plane can be designated by the thickness of the projection drum. Therefore, the effect of the present invention can be obtained by displaying on these image planes while changing the saturation of the 2D image described in the first embodiment. This method has an advantage that a plurality of image planes can be easily formed, in addition to the advantage that there are few movable parts.

[Example 6]
FIG. 13 is a perspective view illustrating a schematic configuration of a three-dimensional display object according to the sixth embodiment of the present invention. FIG. 14 illustrates a transparent plate and a graphic of a display target in the three-dimensional object according to the embodiment of the present invention. It is the figure which looked at the state before bonding the transparent film which printed the two-dimensional image from the top.
13 and 14, 1 is an observer, 2 is a transparent plate, 11 and 12 are front and back surfaces of the transparent plate 2, 3 is a display object, and 21 and 22 are display objects attached to the transparent plate 2. A transparent film 31 and 32 on which a two-dimensional image of an object is printed indicates a display surface of the transparent film (21, 22).
The three-dimensional display object of the present embodiment has a configuration in which a three-dimensional stereoscopic image is displayed as the display object 3, and two sheets of two-dimensional images of the display object 3 are printed as shown in FIG. The transparent film (21, 22) is bonded to the front and back surfaces (11, 12) of the transparent plate 2 having a thickness so that the figure of the two-dimensional image overlaps.
In this embodiment, as will be described later, the edge of the figure of the two-dimensional image printed on the transparent film 21 on the front surface (two-dimensional image of the first display object displayed on the first display surface of the present invention) is used. Blur (gradation of the present invention), edge region of a figure of a two-dimensional image printed on the transparent film 22 on the rear surface (two-dimensional image of the second display object displayed on the second display surface of the present invention), It is characterized by being made larger than the figure of the two-dimensional image printed on the transparent film 21 on the front surface.
In this embodiment, the two-dimensional image displayed on the display surface (31, 32), regardless of whether the observer 1 observes the three-dimensional display target 3 from the front or from a position deviated from the front. Are continuously connected and recognized as a natural three-dimensional stereoscopic figure.

FIG. 15 is a block diagram showing a schematic configuration of the three-dimensional image creating apparatus according to the embodiment of the present invention. In the three-dimensional display object shown in FIG. 13, the two-dimensional image printed on the front transparent film 21 and the rear surface It is a figure which shows schematic structure of the three-dimensional image creation apparatus which produces | generates the two-dimensional image printed on the transparent film.
As shown in FIG. 15, the three-dimensional image creation apparatus of the present embodiment changes the graphic outline data area 601, the data input module 602, the graphic outline area width determination module 603, and the graphic outline area width. The graphic image generation unit (hereinafter, graphic image generation unit 1) 605, the graphic image generation unit (hereinafter, graphic image generation unit 2) 606 provided with gradation in the graphic outline region, and the expansion of the graphic width of the front and rear display surfaces A width determination unit 604, a graphic image generation unit (hereinafter, graphic image generation unit 3) 607 with a large graphic width, a saturation conversion unit 608, and an output unit 609 are configured.
The graphic contour region width determination unit 603 determines the width of the graphic contour region from the display surface interval between the front and rear display surfaces input from the data input unit 602.
The graphic image generation unit 1 (605) sets the graphic outline region width of the graphic image input from the graphic image data input unit 601 to the width of the outline region determined by the graphic contour region width determination unit 603. Create an image.
The graphic image generation unit 2 (606) generates a graphic image in which a gradation due to a change in transparency is provided in the graphic outline region of the graphic image generated by the graphic image generation unit 1 (605).
A graphic image obtained by changing the width of the created graphic contour region and providing gradation in the contour region (contour region 1 of the present invention) is a two-dimensional image for front display (first display surface of the present invention). Is output from the output unit 609 as a first two-dimensional image displayed on the screen.

The graphic width enlargement width determining unit 604 of the front / rear display surface is configured to display the graphic width to be displayed on the front surface based on the display surface interval and the viewing zone angle of the front / rear display surface input from the data input unit 602 (first aspect of the present invention). An enlarged width of a graphic width (second 2D image displayed on the second display surface of the present invention) displayed on the rear surface with respect to the 2D image of the first display object displayed on the display surface) To decide.
The graphic image generation unit 3 (607) displays the graphic outline area width of the graphic image created by the graphic image generation unit 1 (605) on the rear surface determined by the enlarged width determination unit 604 of the graphic width of the front and rear display surfaces. A graphic image in which the graphic and the contour region (contour region 2 of the present invention) have the same color is created.
The saturation conversion unit 608 changes the saturation of the figure of the figure image generated by the figure image generation unit 3 (607) according to the saturation ratio of the color of the figure on the display surface before and after being input from the data input unit 602. Let
The graphic image with the graphic width increased and the saturation changed is output as a two-dimensional image for rear display (a two-dimensional image of the second display object displayed on the second display surface of the present invention). Is output from.

FIG. 16 is a flowchart showing the processing procedure of the 3D image creation method of the embodiment of the present invention. In the 3D image creation apparatus shown in FIG. 15, the graphic image input from the graphic image data input unit 601 and the data input 6 is a flowchart showing a procedure from creating front view and rear view graphic images from each data input from a unit 602 to outputting them as two-dimensional images on the front and rear display surfaces.
First, an input graphic image is acquired from the graphic image data input unit 601 (step 611).
Next, the figure outline region width (X) is calculated from the display surface interval (Y) of the front and rear display surfaces input from the data input unit 602 by the equation X = 0.3Y. This equation can be obtained from the relationship between the width of the graphic contour line area and the distance between the front and rear display surfaces shown in FIG.
The figure contour line area of the figure image input in step 611 is set to the figure outline line area width calculated and determined in step 612, and a figure image in which the figure outline line width is changed is created (step 613).
Next, in the figure outline region width changed in step 612, a process of providing gradation in the outline region (contour line region 1 of the present invention) is performed (step 614). Gradation gradually increases the transparency of the color of the outline region from the inside to the outside of the outline region of the figure, but the transparency of the color of the figure outline region within the figure outline region width shown in FIG. Based on the relationship between the point setting position and the three-dimensionality of the figure, by setting the midpoint of transparency to a position 30 to 60% of the figure outline area width, the figure image is superimposed on the front and back display surfaces in the depth direction. This makes it possible to realize natural 3D graphics.
Next, in step 614, the graphic image subjected to the process of providing gradation in the outline area is output as a front display two-dimensional image (first two-dimensional image displayed on the first display surface of the present invention). (Step 615).

When creating a two-dimensional image for rear display, first, the display surface interval (Y) and viewing zone angle (θ) of the front and rear display surfaces in which the enlarged width of the graphic width of the front and rear display surfaces is input from the data input unit 602. (Step 616).
FIG. 19 shows the relationship between the display surface interval (Y) of the front and rear display surfaces with respect to the viewing zone angle (θ) and the enlarged width (Z) of the graphic width of the front and rear surfaces, and FIG. 20 shows the display surface interval of the front and rear display surfaces. The relationship between the viewing zone angle (θ) with respect to (Y) and the enlarged width of the figure width (Z) of the front and rear surfaces is shown.
19 and 20, the enlarged width (Z) of the graphic width of the front and rear surfaces, the display surface interval (Y) of the front and rear display surfaces, and the tangent (tan θ) of the viewing zone angle (θ) are proportional to each other, and Z = The enlarged width (Z) of the figure width on the front and rear surfaces can be calculated by the calculation formula of 0.1 Ytan θ.
Next, the figure width is calculated by adding the enlarged width of the figure width calculated in step 616 to the figure (figure flat portion + figure outline area) width of the figure image in which the figure outline area width is changed in step 613. A thickened graphic image is created (step 617). At this time, the flat part of the figure and the part of the figure outline area (contour line area 2 of the present invention) are the same color as the figure of the input figure image in step 611.
Next, the saturation ratio of the graphic image whose graphic width is increased in step 617 is converted (step 618). As shown in FIG. 21, the saturation ratio is the ratio of the color saturation of the figure of the figure image on the rear display surface to the case where the figure color saturation ratio on the figure image on the front display face is 100%, and the figure image. From the relationship of the three-dimensional effect, setting the color saturation of the figure on the rear display surface to 10-50% with respect to the color saturation (100%) of the figure on the front display surface increases the three-dimensional effect. Realization of 3D graphics with a sense of depth.
In FIG. 21, A indicates the three-dimensional effect of the graphic in this embodiment in which the contour area 1 is provided on the graphic on the front display surface and the contour area 2 is provided on the graphic on the rear display surface, and B is the front display. The three-dimensional effect in the case where the contour line area 1 is not provided in the surface graphic and the contour line area 2 is provided in the rear display surface graphic is shown.
A graphic image with the graphic width increased and the saturation changed is output as a two-dimensional image for rear display (second two-dimensional image displayed on the second display surface of the present invention) (step 619).

FIG. 22 is a diagram showing an example of a graphic image displayed on the front and back display surfaces created according to the flowchart shown in FIG.
The transparent film 21 in the figure is a graphic image for front display, and the transparent film 22 is a graphic image for rear display.
A0 of the graphic image printed on the transparent fill 21 is a graphic portion, A1 is a graphic contour region portion provided with a gradation in which the intermediate point of transparency is set at a position of 30 to 60% of the width of the graphic contour region (the contour of the present invention) Line region 1).
A0 'of the graphic image printed on the transparent film 22 is a graphic part, and A1' is a graphic outline area part (contour line area 2 of the present invention) obtained by enlarging the graphic outline area.
FIG. 23 is a diagram illustrating a three-dimensional stereoscopic image observed by an observer with the three-dimensional display object illustrated in FIG. 13 when the two-dimensional image illustrated in FIG. 22 is used.
FIG. 23A shows a three-dimensional stereoscopic image observed when the observer 1 views the three-dimensional display object shown in FIG. 13 from the front. Actually, the display surfaces (31, 32) of the transparent films (21, 22) have different depth positions, and the contour of the graphic image printed on the transparent film 21 attached to the transparent plate 2 The transparency of the line area is increased stepwise to provide gradation, and the graphic image of the graphic image printed on the transparent film 22 (the graphic image of the rear display surface) is printed on the transparent film 21 (graphic image) By lowering the saturation of the graphic image on the front display surface), a three-dimensional stereoscopic image of the graphic is observed.
FIG. 23B shows a state in which the observer 1 observes the three-dimensional display object shown in FIG. 13 from a position shifted rightward from the front toward the display surface.
As shown in FIG. 23B, even when the observer 1 observes from a position shifted from the front of the three-dimensional display object, the two-dimensional image printed on the transparent film 21 attached to the transparent plate 2 The gradation part of the outline area of the figure and the figure image obtained by enlarging the figure outline area printed on the transparent film 22 to increase the figure width are continuously connected in the depth direction, and a natural three-dimensional stereoscopic image It is observed as a figure.
Thus, since the observer 1 can observe the figure of the three-dimensional stereoscopic image even when the head is moved, the stereoscopic expression by motion parallax is possible.

As described above, according to the present embodiment, the contour area width of the figure of the two-dimensional image corresponding to the front display surface is determined according to the width between the front and rear display surfaces in the three-dimensional display using the three-dimensional representation method. The transparency of the contour area is increased stepwise, and the figure width of the two-dimensional image corresponding to the rear display surface is made wider than the figure width of the two-dimensional image displayed on the front display surface. When the color saturation ratio of the contour area is set lower than the color saturation ratio of the figure of the two-dimensional image displayed on the front display surface, the line of sight of the observer is displayed when superimposed in the depth direction. Even if the position is shifted, continuous depth position expression is possible, thereby widening the range of the observation position, and even when the back light amount on the display surface of the 3D display device is small, the perception of the stereoscopic effect of the 3D stereoscopic image. There is an effect that becomes possible.
In this embodiment, the transparent plate 2 and the transparent film (21, 22) are described as an example. However, a transparent object (for example, window glass, glass, container) can be displayed. It is. Further, although a figure is taken as an example of a display target object for three-dimensional display, it can also be displayed with characters, symbols, marks, and logos.
In the above description, the example applied to the three-dimensional display object shown in FIG. 1 has been described. However, the present invention can be applied to two two-dimensional display devices at different depth positions as viewed from the observer. A three-dimensional display that displays a two-dimensional image by projecting an object from the line of sight of an observer and changing the saturation of the two-dimensional image displayed on each display device independently. It is also applicable to the device.
Note that the three-dimensional image creation apparatus of the present invention can also be executed by a computer. In this case, the three-dimensional image creation method of the present invention is performed by the computer executing a program stored in a hard disk or the like in the computer. This program is supplied by CD-ROM or download via a network.
Although the invention made by the present inventor has been specifically described based on the above-described embodiments, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. Of course.

DESCRIPTION OF SYMBOLS 1,100 Viewer 2 Transparent board 3 Display object 11,12 Front and back surfaces of transparent board 21,22 Transparent film 31,32 Display surface 101,102 surface 103 Optical system 104 Three-dimensional object 105,106 2D image 121,122,131,132,141-145,204 Two-dimensional display device 123,133,146 Total reflection mirror 124,134,147-150 Partial reflection mirror 125,126,135,136,151-155, 167, 168 Image surface 137, 138 Convex lens 161, 162 Projector type two-dimensional display device 163, 164 Scatter plate 165, 166, 505 Shutter 182 Internal image surface 183 Lens optical system 184 External image surface 201 Optical system 202 including half mirror 202 Burr Focal mirror 203 Virtual image 301 Vibration screen 302 An optical system including a lens 303 Scanning device 304 Laser light source 401 LED display device 402 Rotating device 403 Video supply device 501 Film or two-dimensional display device on which a two-dimensional image is recorded 502 Conversion optical system 503 Projection drum 504 Light source 601 Graphic Image data input unit 602 Data input unit 603 Graphic outline region width determination unit 604 Enlarged width determination unit of graphic width of front and rear display surfaces 605 Graphic image generation unit (graphic image generation unit 1) in which graphic outline region width is changed
606 A graphic image generation unit (graphic image generation unit 2) in which gradation is provided in the graphic outline region
607 A graphic image generation unit (graphic image generation unit 3) having a large graphic width
608 Saturation conversion unit 609 output unit

Claims (25)

A three-dimensional display method for generating a three-dimensional stereoscopic image by displaying a two-dimensional image on each of two display surfaces having different depth positions,
Generating a two-dimensional image obtained by projecting the display target object from the viewing direction of the observer on two display surfaces at different depth positions as viewed from the observer;
A three-dimensional display method, wherein the generated two-dimensional image is displayed on two display surfaces by changing the saturation of the generated two-dimensional image independently for each display surface.   Of the two display surfaces, the saturation of the two-dimensional image displayed on the display surface far from the observer is made lower than the saturation of the two-dimensional image displayed on the display surface close to the observer. The three-dimensional display method according to claim 1.   The two-dimensional image is displayed on the two display surfaces so that the two-dimensional image overlaps when viewed from one point on a line connecting the right eye and the left eye of the observer, and on a display surface far from the observer The three-dimensional display method according to claim 1 or 2, wherein a width of the two-dimensional image to be displayed is larger than a width of the two-dimensional image displayed on a display surface close to the observer.   The three-dimensional display method according to claim 3, wherein one point on a line connecting the right eye and the left eye of the observer is a point between the right eye and the left eye.   The three-dimensional display method according to claim 3, wherein one point on a line connecting the right eye and the left eye of the observer is a center point of the right eye and the left eye.   The two-dimensional images displayed on the two display surfaces are enlarged or reduced in the left-right direction as viewed from the observer so as to overlap each other as seen from a point on the line connecting the observer's right eye and left eye. The three-dimensional display method according to claim 3, wherein the three-dimensional display method is added.   The two two-dimensional images displayed on the display surfaces of the same display target object with respect to the depth position between the display surfaces for displaying the two-dimensional images are monocular from the positions of the right and left eyes of the observer. The three-dimensional display method according to claim 1, wherein the three-dimensional display method has a common area when viewed. A first means for generating a two-dimensional image obtained by projecting a display target object from the viewing direction of the observer on two display surfaces at different depth positions as viewed from the observer;
Second means for displaying the two-dimensional image generated by the first means on two display surfaces at different depth positions as viewed from the observer;
A three-dimensional display device comprising: third means for independently changing the saturation of the two-dimensional image displayed on the two display surfaces for each display surface. The second means includes two two-dimensional display devices;
A partial reflector that is combined with a two-dimensional display device disposed at a depth position close to the observer among the two two-dimensional display devices, and arranges the display of the two-dimensional display device as an image on the line of sight of the observer The three-dimensional display device according to claim 8, comprising: The second means includes two two-dimensional display devices;
Of the two two-dimensional display devices, a partial reflection is combined with a two-dimensional display device arranged at a depth position close to the observer, and the display of the two-dimensional display device is arranged as an image on the observer's line of sight. The three-dimensional display device according to claim 8, comprising a combination of a mirror and a lens. The second means includes two two-dimensional display devices;
A total reflection mirror that is combined with a two-dimensional display device arranged at a depth position far from the observer among the two two-dimensional display devices, and arranges the display of the two-dimensional display device as an image on the line of sight of the observer Or a partial reflector,
It is combined with a two-dimensional display device arranged at a depth position close to the observer, and comprises a partial reflector that arranges the display of the two-dimensional display device as an image on the line of sight of the observer. The three-dimensional display device according to claim 8. The second means includes two two-dimensional display devices;
A total reflection mirror that is combined with a two-dimensional display device arranged at a depth position far from the observer among the two two-dimensional display devices, and arranges the display of the two-dimensional display device as an image on the line of sight of the observer And a combination of lenses, or a combination of partial reflectors and lenses,
A combination of a two-dimensional display device arranged at a depth position close to the observer and a combination of a partial reflector and a lens that arranges the display of the two-dimensional display device as an image on the line of sight of the observer. The three-dimensional display device according to claim 8. The second means is two scattering plates arranged at different depth positions as viewed from the observer and capable of switching control between a transmission state and a scattering state, or 2 capable of switching control between a reflection state and a transmission state. With two reflectors,
Two projection-type two-dimensional display devices that project a two-dimensional image onto each of the two scattering plates or the two reflection plates;
Between the two scattering plates or the two reflecting plates and the two projection type two-dimensional display devices, switching between the transmitting state and the scattering state of the two scattering plates, or the reflecting state of the two reflecting plates The three-dimensional display device according to claim 8, further comprising two shutters that switch between a transmission state and a blocking state in synchronization with the switching of the transmission state.   14. The lens optical system according to claim 8, wherein a lens optical system is installed between two display surfaces at different depth positions when viewed from the observer and the observer. 3D display device. The second means includes a two-dimensional display device;
Optical system,
The three-dimensional display device according to claim 8, comprising a varifocal mirror. The second means includes a vibrating screen that vibrates in the depth direction,
An optical system including a lens;
Scanning means for raster scanning laser light;
The three-dimensional display device according to claim 8, comprising a laser light source. The second means includes an LED display device comprising an LED array;
A translation / rotation device for translating / rotating the LED display;
The three-dimensional display device according to claim 8, comprising a video supply device that supplies a video signal to an LED display device. The second means includes a film on which a two-dimensional image is recorded or a two-dimensional display device,
A conversion optical system having a prism and a mirror;
The three-dimensional display device according to claim 8, comprising a projection drum.   The second means displays the two-dimensional image generated by the first means on the two display surfaces so as to overlap each other when viewed from one point on a line connecting the right eye and the left eye of the observer. The three-dimensional display device according to any one of claims 8 to 18, wherein the three-dimensional display device is provided.   The second means adds the deformation of enlargement / reduction in the horizontal direction when viewed from the observer to the two-dimensional image generated by the first means, and displays the two-dimensional image on the two display surfaces. The three-dimensional display device according to claim 19. A three-dimensional display object that displays a three-dimensional stereoscopic image by displaying a two-dimensional image of a first display object and a two-dimensional image of a second display object with an arbitrary depth width. And
The first two-dimensional image displayed on the first display surface close to the observer has a width proportional to the display surface interval between the first display surface and the second display surface far from the observer. Has a contour region 1 with
The outline area 1 has the same boundary color between the image inside the outline area 1 and the outline area 1 as the color of the image inside the outline area 1 and monotonously outward. Has increased transparency,
The second two-dimensional image displayed on the second display surface is a sum of a width proportional to the display surface interval and a width proportional to a product of the display surface interval and a tangent of a predetermined viewing zone angle. A contour region 2 having a width;
The color of the contour region 2 is equal to the color of the image inside the contour region 2,
A three-dimensional display object, wherein a saturation of a color of the second two-dimensional image is lower than a saturation of an image inside the outline region 1 of the first two-dimensional image. The two-dimensional image of the first display object displayed on the first display surface and 2 of the second display object displayed on the second display surface in the three-dimensional display object according to claim 21. A three-dimensional image creation device for creating a three-dimensional image,
Graphic image data input means for capturing an image of a display object;
A display surface interval between the first display surface and the second display surface, a predetermined viewing zone angle, and a saturation ratio of the second two-dimensional image with respect to the first two-dimensional image. Data input means for inputting and holding;
A figure contour line area width determining means having a value proportional to the display surface interval as a figure outline line area width;
A graphic image generating means 1 for generating an image having a contour region 1 in which the width of the contour region of the image of the display object is the graphic contour region width;
A graphic image generating means 2 for generating an image in which a gradation is provided in the contour area 1 in which the transparency of the contour area 1 of the image generated by the graphic image generating means 1 is monotonously increased toward the outside;
Determining the width of the graphic width using a value proportional to the product of the tangent of the display surface interval and the viewing zone angle as a deviation width of the image size of the second two-dimensional image with respect to the image size of the first two-dimensional image Means,
As the contour region of the image generated by the graphic image generating means 1, the contour region 2 is obtained by adding the shift width determined by the graphic width shift width determining unit to the contour region 1, and Graphic image generation means 3 for generating an image having the outline area 2 in which the color of the outline area 2 is equal to the color of the image inside the outline area 1 of the image generated by the graphic image generation means 1; ,
Saturation conversion for converting the saturation of the color of the image having the contour region 2 generated by the graphic image generation means 3 based on the saturation ratio of the second two-dimensional image with respect to the first two-dimensional image. And
An image in which gradation is provided in the contour region 1 generated by the graphic painter generating means 2 is output as the first two-dimensional image, and the contour region 2 is converted by the saturation conversion unit. 3. A three-dimensional image creating apparatus comprising output means for outputting an image as the second two-dimensional image. The two-dimensional image of the first display object displayed on the first display surface and 2 of the second display object displayed on the second display surface in the three-dimensional display object according to claim 21. A three-dimensional image creation method for creating a three-dimensional image,
An image of a display object, a display surface interval between the first display surface and the second display surface, a predetermined viewing zone angle, and the second two-dimensional image with respect to the first two-dimensional image A first step of capturing and holding the saturation ratio of the image;
A second step in which a value proportional to the display surface interval is set as a graphic contour region width;
A third step of generating an image having a contour region 1 in which the width of the contour region of the image of the display object is the graphic contour region width;
A fourth step of generating an image in which gradation is provided in the contour region 1 in which the transparency of the contour region 1 of the image generated in the third step is monotonously increased toward the outside; A fifth step of outputting the image generated in the step as a first two-dimensional image;
A sixth step in which a value proportional to the product of the display surface interval and the tangent of the viewing zone angle is a deviation width of the image size of the second two-dimensional image with respect to the image size of the first two-dimensional image; ,
As the contour region of the image generated in the third step, there is a contour region 2 obtained by adding the shift width determined in the sixth step to the contour region 1, and the contour region A seventh step of generating an image having a contour region 2 in which the color of 2 is equal to the color of the image inside the contour region 1 of the image generated in the third step;
An eighth step of converting the color saturation of the image having the outline region 2 generated in the seventh step based on the saturation ratio of the second two-dimensional image with respect to the first two-dimensional image. When,
And a ninth step of outputting the image whose saturation has been converted in the eighth step as the second two-dimensional image.   A program for causing a computer to execute the three-dimensional image creation method according to claim 23.   A computer-readable recording medium on which the program according to claim 24 is recorded.

Images