KR100815505B1 - 3d displaying method, device and program - Google Patents

Abstract

According to the present invention, in the technique of displaying two-dimensional images on a plurality of display surfaces at different depth positions as viewed from an observer and displaying them as three-dimensional three-dimensional images, a plurality of display objects having a luminance lower than that of the background are displayed. The first two-dimensional image is generated by projecting the surface serving as the background to the display surface of the viewer from the viewing direction of the observer, and the luminance of the generated first two-dimensional image is changed independently for each display surface, thereby generating the first two-dimensional image. While displaying on each display surface, the 2nd two-dimensional image which projected the display object from the visual direction of an observer with respect to a some display surface is produced | generated, and the brightness | luminance in a 2nd two-dimensional image is the same between each display surface, 2 Display two-dimensional images on each display surface. In the case of using a transmissive display surface, when displaying a display object having a brightness that is brighter than that of the background surface, the transmittance on the first two-dimensional image is changed independently for each display surface. At the same time, the transmittance on the second two-dimensional image is made the same between the display surfaces.

3D stereoscopic image, DFD, transmittance, luminance, display object

Description

3D DISPLAYING METHOD, DEVICE AND PROGRAM

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional display method and apparatus, and more particularly, to a three-dimensional display method of displaying a three-dimensional stereoscopic image by dividing luminance of a plurality of two-dimensional images, wherein a figure or character information displayed in a relatively dark color tone such as black is displayed. A display method and a three-dimensional display method of distributing a plurality of two-dimensional images by transmitting a plurality of two-dimensional images so as to overlap each other, and a display method of displaying a figure or character information displayed in a relatively bright color tone such as white.

Background Art Conventionally, several methods have been proposed for displaying a stereoscopic image in the display of a screen such as a personal computer (hereinafter referred to as a personal computer). Among them, a method of displaying a three-dimensional stereoscopic image of a display object by overlapping a plurality of two-dimensional images has been proposed (see Patent Documents 1 and 2 below).

The display methods described in Patent Documents 1 and 2 are called DFD (Depth-Fused 3D) display systems. In the three-dimensional display method of this DFD display method, by changing the luminance of a display object on each side of a plurality of overlapping two-dimensional images (in the case of luminance distribution type DFD display) or by changing the transmittance (transmission degree distribution type DFD display) ), An image with a three-dimensional effect is displayed in the depth direction.

In the display method of this DFD display system, since the resolution of the display object is the same as that of a normal two-dimensional image, even a fine display object such as a small character has a high resolution and a reliable display.

In addition, the following prior art documents which concern on this invention are mentioned.

Patent Document 1: Patent No. 3022558

Patent Document 2: Patent No. 3460671

However, in the display method of the luminance distribution type DFD display method, since the luminance of overlapping two-dimensional images is distributed according to the display position in the depth direction of the display object, when displaying on the screen of the personal computer, the luminance displayed on the screen is For example, since it is controlled by digital information such as a pixel value having 256 gray levels, the pixel values cannot be distributed to a plurality of screens in black in which the pixel value corresponding to the lowest luminance on the screen is displayed as zero. . As a result, the luminance of the object to be displayed could not be distributed, and it was impossible to three-dimensionally display the black display object in the depth direction.

Further, even if the pixel value is not black, which is zero on the personal computer, the object having a low pixel value and displayed as a hue of dark luminance as a result, the number of combinations for distributing luminance in a plurality of screens is limited, and the display of the depth position is limited. Precision was also supposed to fall.

In contrast, in the display method of the transmittance distribution type DFD display method, the transmittance of overlapping two-dimensional images is distributed according to the depth position of the display object, so that when displaying on the screen of a personal computer, the maximum corresponding to the highest luminance on the screen In white displayed by the pixel value, the transmittance of the object displayed on the plurality of screens could not be distributed, and it was impossible to three-dimensionally display the white display object in the depth direction.

In addition, in the case of an object which has a high pixel value and is displayed as a color tone of bright brightness as a result even if it is not white which is the maximum pixel value on a personal computer, the number of combinations for distributing transmittance in a plurality of screens is limited, and the display accuracy of the depth position is limited. Too, was supposed to fall.

On the other hand, on the screen of a personal computer, character information, such as a word processor or an OS menu, is displayed in a dark gray tone such as black at a relatively small size, or in a dark gray tone such as black on a background of bright gray such as white. In the background, it is very common to display a light gray scale such as white in a relatively small size. In the display method of the DFD display method, although it is a method suitable for displaying such characters in terms of resolution, in the luminance distribution type DFD display method, when the displayed character is a dark color tone such as black, the depth position can be displayed by changing. There was no. In addition, in the transmittance distribution type DFD display system, when the displayed character was a bright color tone such as white, the depth position could not be changed and displayed.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art, and an object of the present invention is to display a three-dimensional stereoscopic image of a display object by luminance distribution of a plurality of two-dimensional images, and to display a three-dimensional stereoscopic image of a display object, such as black, etc. The present invention provides a technique that makes it possible to display a figure or character information represented by a relatively dark color tone by changing the depth position. In addition, an object of the present invention is to display a three-dimensional stereoscopic image of a display object by distributing a plurality of two-dimensional images to transmit a plurality of two-dimensional images, the depth position of a figure or character information represented by a relatively light color tone such as white on a background of a relatively dark color tone It is an object of the present invention to provide a technique that makes it possible to display the display in other words.

Among the inventions disclosed in the present application, a typical but brief description is as follows.

In order to solve the above-mentioned problems, in the present invention, when a plurality of two-dimensional images are divided by luminance and displayed three-dimensional stereoscopic images, a relatively dark hue figure or character such as black is displayed at an arbitrary depth position. In order to change the display depth position of the surface serving as the background of the displayed figure or character, the two-dimensional image of the background is displayed on each of the plurality of display surfaces, without changing the luminance of the figure or the character portion of the dark color tone, The dark hue figure and the character part are displayed at the same luminance on each display surface, and the overlapping luminance is made equal to the original luminance.

In the case where the luminance of the figure or the character portion of the dark hue is zero, the luminance is displayed on each display surface at zero luminance, and is displayed by a pixel value having a gradation by the number of bits determined by a digital signal such as a personal computer. In the display screen for controlling the brightness, when the pixel value of the figure or the character portion of the dark color tone is displayed as zero, the pixel value is displayed as zero on each display surface.

In this way, the background part of the character is displayed by being overlaid by changing the luminance on a plurality of two-dimensional images, so that the background is perceived as a plane existing at an arbitrary depth position.

In addition, by displaying the character information of the color tone darker than the background in the range of the surface displayed as the background with the same brightness on the plurality of display surfaces, the observer is displayed as if the character information is displayed on the background perceived at an arbitrary depth position. I am late to

In addition, in the present invention, when displaying a three-dimensional stereoscopic image by superimposing a plurality of two-dimensional images by distributing transmittance, a brightly colored figure or character portion is displayed when a relatively bright color figure or character such as white is displayed at an arbitrary depth position. The two-dimensional image of the background is displayed on the plurality of display surfaces so as to change the display depth position of the surface serving as the background of the displayed figure or character, without changing the transmittance of the light. The same transmittance is displayed on each cover surface, and the overlapping luminance seen from the observer is made equal to the original luminance.

In addition, when the light transmittance of the figure or character part of a light hue is maximum, the transmittance | permeability is displayed on each display surface maximum.

In this way, the background part of the character is displayed on the plurality of display surfaces by changing the transmittance and overlapping them, whereby the background is perceived as a plane existing at an arbitrary depth position.

In addition, by displaying the character information of a lighter color than the background in the range of the surface displayed as the background with the same transmittance on the plurality of display surfaces, the observer is displayed as if the character information is displayed on the background perceived at an arbitrary depth position. I am late to

The effect obtained by the typical thing of the invention disclosed in this application is demonstrated below.

According to the present invention, when displaying a three-dimensional stereoscopic image by superimposing a plurality of two-dimensional images by luminance distribution, it is possible to display a display object of a relatively small size, which is displayed at a lower luminance than the background, at an arbitrary depth position. .

In addition, when displaying a three-dimensional stereoscopic image by superimposing a plurality of two-dimensional images by distributing transmittance, it becomes possible to display a display object of a relatively small size displayed at a high luminance compared with the background at an arbitrary depth position.

In addition, by applying the present invention to an application for inputting and editing character information, it is easy to understand and easy to use for the user, such as to easily know the input editing position of a character, a search result, and a selection position of the character. It becomes possible to provide application software.

1 is a view for explaining an example of a three-dimensional display device of the DFD type.

FIG. 2 is a view for explaining a method of generating a 2D image displayed on the display surface of the DFD type three-dimensional display device shown in FIG. 1; FIG.

3 is a view for explaining the principle of display of the DFD type three-dimensional display device shown in FIG.

4 is a view for explaining the principle of display of the DFD type three-dimensional display device shown in FIG.

FIG. 5 is a view for explaining the principle of display of the DFD type three-dimensional display device shown in FIG. 1; FIG.

FIG. 6 is a view for explaining the principle of display of the DFD type three-dimensional display device shown in FIG. 1; FIG.

7 is a diagram illustrating an example of a luminance distribution type DFD display device.

8 is a view for explaining another example of a DFD type three-dimensional display device.

9 is a diagram illustrating an example of a transmittance distribution type DFD display device.

Fig. 10 is a block diagram showing the schematic configuration of a three-dimensional display device according to the first embodiment of the present invention.

Fig. 11 is a block diagram showing a schematic configuration of a three-dimensional display device of Embodiment 2 of the present invention.

Fig. 12 is a block diagram showing the schematic configuration of a three-dimensional display device according to a third embodiment of the present invention.

Fig. 13 is a diagram showing a functional configuration example of the two-dimensional image output device 61;

14 is a flowchart for explaining the operation of the two-dimensional image output device 61;

15 is a flowchart for explaining the operation of the two-dimensional image output device 61;

Fig. 16A is a three-dimensional display device according to a fourth embodiment of the present invention, showing an example in which the present invention is applied to application software for input and editing character information, such as a word processor, in a row in which a cursor which is an input position of a character exists. The figure which shows the case where the surface used as a background after a bottom is displayed in a depth position different from the background of the row | route in which the cursor is located, and the row located above it.

Fig. 16B is a three-dimensional display device of Embodiment 4 of the present invention, showing an example in which the present invention is applied to application software for input editing of character information such as a word processor, rather than a row in which a cursor which is an input position of a character exists. It is a figure which shows the case where the surface used as the background of the row located above is displayed by the depth position different from the background of the row where the cursor is located, and the part below it.

Fig. 17 is a three-dimensional display device according to a fifth embodiment of the present invention, showing an example in which the present invention is applied to application software for input and editing character information such as a word processor, and corresponding to the result of searching for a character string in a sentence. The figure which shows the example which displays the background of a part by a depth position different from another background.

FIG. 18 is a three-dimensional display device according to a sixth embodiment of the present invention, showing an example in which the present invention is applied to an application software for inputting and editing character information, such as a word processor, when a character string in a sentence is selected. The figure which shows the example which shows the background of the part in a depth position different from another background.

Fig. 19 is a three-dimensional display device according to a seventh embodiment of the present invention, in which the present invention is applied to a menu of various application units and operating systems.

20 is a diagram illustrating a functional configuration example of a two-dimensional image output device 71. FIG.

21 is a flowchart for explaining the operation of the two-dimensional image output device 71;

22 is a flowchart for explaining the operation of the two-dimensional image output device 71;

* Description of the symbols for the main parts of the drawings *

1, 1OO: Observer

21, 22, 23, 24, 25, 26, 27: display surface

31, 32, 33, 34, 35, 36, 37: background as background

41, 42: shapes

51, 52, 53, 54, 55, 211: text information

61, 71: two-dimensional image output device

62, 63: two-dimensional display

64: cable

111, 112: transmissive display

101, 102: display surface

203: optical system

204: three-dimensional object

205, 206, 207, 108: 2D image

110: light source

201, 202: Character input screen of character input / editing software

203: Background of retrieved string parts

204: Background of selected string part

205: side of menu

206: background of submenu

207: Face that is the background of the selected menu

301: the step of the two sides to be the background of the character

401: cursor

501: button

511: a menu such as an application unit

512: submenu

601 pointer

611, 711: two-dimensional image calculation unit

612 and 712: luminance determining unit

613, 713: luminance value calculator

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In addition, in the whole figure for demonstrating an Example, the thing with the same function attaches | subjects the same code | symbol, and the repeated description is abbreviate | omitted. First, a three-dimensional display device of DFD type will be described.

[Example of 3D display device of DFD type]

1 is a view for explaining an example of a three-dimensional display device of the DFD type.

In the three-dimensional display device shown in FIG. 1, a plurality of display surfaces 101 and 102 (the display surface 101 is closer to the observer 100 than the display surface 102) are set on the front surface of the observer 100. In addition, an optical system 103 including a two-dimensional display device for displaying a plurality of two-dimensional images on these display surfaces 101 and 102 and various optical elements is constituted.

As the two-dimensional display device, for example, a CRT, a liquid crystal display, an LED display, a plasma display, an EL display, an FED display, a DMD, a projection display, a line depicting display such as an oscilloscope, and the like are used. As the lens, for example, a lens, a total reflector, a partial reflector, a curved mirror, a prism, a polarizing element, a wave plate, or the like is used.

1 is the same structure as what was described in patent document 1 mentioned above, and the patent document 1 mentioned above is referred for the detail of the setting method of this display surface.

In the three-dimensional display device shown in FIG. 1, as shown in FIG. 2, the three-dimensional object 104 to be presented to the observer 100 is displayed from the viewing direction of both eyes of the observer 100 as described above. And 102 (projection) (hereinafter referred to as "2D image") 105, 106 are generated.

As a method of generating this 2D image, for example, a method of using a two-dimensional image obtained by photographing a three-dimensional object 104 from a visual direction, or a method of synthesizing from a plurality of two-dimensional images photographed from different directions, or a computer There are many ways to do this, including graphical compositing and modeling.

As shown in FIG. 1, one point on a line connecting the right eye and the left eye of the observer 100 to both the display surface 101 and the display surface 102 for the 2D images 105 and 106, respectively. To overlap from the view. This can be achieved, for example, by controlling the arrangement of the center positions and center positions of the 2D images 105 and 106 and the enlargement and reduction of each image.

On the apparatus having such a configuration, by changing the distribution of the luminance of each of the 2D images 105, 106 corresponding to the depth position of the three-dimensional object 104, while maintaining the overall luminance viewed from the observer 100, A three-dimensional stereoscopic image of the three-dimensional object 104 is displayed. Therefore, this type of three-dimensional display device will be referred to as a luminance distribution type DFD display device.

An example of a method of converting luminance of each of the 2D images 105 and 106 will be described. In addition, here, since it is a black-and-white drawing, in order to make it easy to understand, the higher brightness is shown in the following drawings.

For example, when the three-dimensional object 104 is on the display surface 101, as shown in Fig. 3, the luminance of the above 2D image 105 is made equal to the luminance of the three-dimensional object 104. The luminance of the 2D image 106 on the display surface 102 is zero.

Next, for example, when the three-dimensional object 104 is slightly away from the observer 100 and is slightly biased toward the display surface 102 side than the display surface 101, as shown in FIG. 4, 2D The luminance of the image 105 is slightly lowered, and the luminance of the 2D image 106 is slightly raised.

Next, for example, when the three-dimensional object 104 is further away from the observer 100 and is in a position more biased toward the display surface 102 side than the display surface 101, as shown in FIG. 5, 2D The luminance of the image 105 is further lowered, and the luminance of the 2D image 106 is further raised.

For example, in the case where the three-dimensional object 104 is on the display surface 102, as shown in FIG. 6, the luminance of the above-described 2D image 106 is equal to the luminance of the three-dimensional object 104. As shown in FIG. In the same manner, the luminance of the 2D image 105 on the display surface 101 is zero.

By displaying in this way, even if the display is based on the physiological or psychological factors or illusions of the observer (person) 100, even if the display is the 2D image 105 or 106, the observer 100 is three-dimensional in the middle of the display surfaces 101 and 102. It feels as if the object 104 is located.

For example, when the 2D images 105 and 106 of substantially uniform brightness are displayed on the display surfaces 101 and 102, the three-dimensional object 104 is located near the middle of the depth position of the display surfaces 101 and 102. It feels like In this case, the three-dimensional object 104 is perceived by the observer 100 with a three-dimensional effect.

In the above description, the method of expressing the depth position of the entire three-dimensional object using the two-dimensional images displayed on the display surfaces 101 and 102 has been mainly described. However, the three-dimensional display device shown in FIG. Obviously, it can be used as a device for expressing the depth of the object itself.

When expressing the depth that the three-dimensional object itself has, the overall luminance viewed from the observer 100 by the distribution of the luminance of each part of the 2D images 105 and 106 is fixed on the apparatus having the structure shown in FIG. 1. It keeps making it, and changes corresponding to the depth position which each part of the three-dimensional object 104 has.

In addition, although the above description mainly described only two planes among the planes for placing the two-dimensional image, and described the case where the object to be presented to the observer is between the two planes, Even if the number is larger than this or the position of the object to be presented is different, it is clear that the three-dimensional stereoscopic image can be displayed by the same technique.

For example, there are three planes, and the first three-dimensional object is located between the plane close to the observer 100 and the intermediate plane, and the second three-dimensional object is located between the intermediate plane and the plane farthest from the observer 100. If present, a surface close to the observer 100, a middle surface, and a 2D image of the first three-dimensional object are displayed, the middle surface, a surface far from the observer 100, and a 2D image of the second three-dimensional object. By displaying, three-dimensional stereoscopic images of the first and second three-dimensional objects can be displayed.

In the case where the 2D image is moved three-dimensionally, the movement of the observer in the left-right and up-down directions can be performed by moving picture reproduction in the display surface as in the case of a normal two-dimensional display device, and in the depth direction. As for the movement of, by varying the distribution of the luminance of each of the 2D images 105 and 106 in response to the temporal change of the depth position of the three-dimensional stereoscopic image, while keeping the overall luminance viewed from the observer 100 constant, The three-dimensional fairy tale can be expressed.

For example, a case where the three-dimensional stereoscopic image moves in time from the display surface 101 to the display surface 102 will be described.

When the three-dimensional stereoscopic image is on the display surface 101, as shown in FIG. 3, the luminance of the 2D image 105 on the display surface 101 is made equal to the luminance of the three-dimensional stereoscopic image, and on the display surface 102. The luminance of the 2D image 106 is zero.

Next, for example, when the three-dimensional stereoscopic image gradually moves away from the observer 100 gradually in time and slightly biases toward the display surface 102 side slightly from the display surface 101, as shown in FIG. 4, Corresponding to the movement of the depth position of the three-dimensional solid image, the luminance of the 2D image 105 is slightly lowered in time, and the luminance of the 2D image 106 is slightly increased in time.

Next, for example, when the three-dimensional stereoscopic image is further moved away from the observer 100 in time, and moves in time to a position more biased toward the display surface 102 side than the display surface 101, as shown in FIG. Similarly, the luminance of the 2D image 105 is further lowered in time and the luminance of the 2D image 106 is further increased in time in correspondence with the movement of the depth position of the three-dimensional solid image.

For example, when a three-dimensional stereoscopic image has moved in time to the display surface 102, as shown in FIG. 6, the 2D image 106 on this top surface corresponds to the movement of the depth position of the three-dimensional stereoscopic image. Is changed in time until the luminance of the 3D stereoscopic image becomes equal to the luminance of the three-dimensional stereoscopic image, and is changed until the luminance of the 2D image 105 on the display surface 101 becomes zero.

By displaying in this way, even if the 2D images 105 and 106 are displayed by the physiological or psychological factors or the illusion of a person, the observer 100 is as though the display surfaces 101 and 102 are between the display surfaces 101. From the display surface 102, it is felt that the three-dimensional stereoscopic image moves in the depth direction.

In the above description, the case where the three-dimensional stereoscopic image moves from the display surface 101 to the display surface 102 has been described, but this is the display surface 102 from the depth position in the middle between the display surfaces 101 and 102. ), Or when moving from the display surface 101 to the depth position in the middle between the display surfaces 101 and 102, or from the depth position in the middle between the display surfaces 101 and 102. Even when moving to another depth position along the way between 101 and 102, it is clear that the same thing is possible.

In addition, although the above description mainly describes only two planes among the planes on which the 2D image is arranged, the case where the three-dimensional stereoscopic image presented to the observer 100 moves between the two planes is described. Even when the number of planes on which images are placed is larger than this, or the three-dimensional object to be presented is moved over a plurality of planes, the three-dimensional stereoscopic image can be displayed and the same effect can be expected by the same technique. Do.

In addition, in the above description, the case where one three-dimensional three-dimensional image moves in two planes that arrange the two-dimensional image has been described. However, when a plurality of three-dimensional objects move, that is, the displayed two-dimensional images are respectively moved in the direction In the case of including a plurality of different object images, it is clear that the luminance of the object image displayed on each display surface may be changed in accordance with the moving direction and the moving speed of the object for each object image.

FIG. 7 is a diagram showing an example of a luminance distribution type DFD display device using, as the display surfaces 101 and 102 in FIG. 1, a transparent EL display in which a transparent electrode and an EL light emitting material are combined. By setting it as such a structure, this display apparatus can change the brightness | luminance on the two-dimensional image in the display surfaces 101 and 102, respectively independently.

In the luminance distribution type DFD display device shown in Fig. 7, the observer superimposes light emitted from two transparent EL displays. Therefore, in a device having such a configuration, for example, if a black display object corresponding to zero brightness is to be displayed on a screen, the luminance of a pixel corresponding to the display object is zero in both of the two transparent EL displays. Done. At this time, the observer cannot observe the overlapping two images of luminance zero, and therefore cannot perceive the depth position of the display object. Therefore, in the luminance distribution type DFD display device of FIG. 7, it is impossible to display a black display object three-dimensionally in the depth direction.

In addition, even if it is not black, in the display object of low dark hue with low luminance, since the luminance must be distributed between two transparent EL displays while making the total luminance seen from an observer equal to the luminance of a display object, the luminance of the combination which distributes a luminance The number is limited and the display accuracy of the depth position is inferior.

[Other example of 3D display device of DFD type]

8 is a view for explaining another example of the DFD type three-dimensional display device which is the premise of the present invention.

In the three-dimensional display device shown in FIG. 8, a plurality of transmissive display devices 111 and 112 disposed in front of the observer 100 (the transmissive display device 111 is closer to the observer 100 than the transmissive display device 112) And the optical system 103 using various optical elements and the light source 110. That is, in the example shown in FIG. 8, the transmissive display devices 111 and 112 are used instead of the display surfaces 101 and 102 in FIG.

Examples of the transmissive display devices 111 and 112 include a twisted nematic liquid crystal display, an in-plane liquid crystal display, a homogeneous liquid crystal display, a ferroelectric liquid crystal display, and a guest host. Type liquid crystal display, polymer dispersed liquid crystal display, holographic polymer dispersed liquid crystal display, or a combination thereof. As the optical element, for example, a lens, a total reflection mirror, a partial reflection mirror, a curved mirror, a prism, a polarizing element, a wave plate, and the like are used.

In addition, in FIG. 8, the case where the light source 110 is arrange | positioned in the backmost view from the observer 100 is shown, and the structure shown in FIG. 8 is the same structure as what was described in patent document 2 mentioned above. It is

Also in the three-dimensional display device shown in FIG. 8, as shown in FIG. 2 described above, the three-dimensional object 104 to be presented to the observer 100 is viewed from the observer 100. 2D images 107 and 108 projected to 112 are generated.

As shown in Fig. 8, the 2D images 107 and 108 are formed in a line connecting the right eye and the left eye of the observer 100 to both the transmissive display 111 and the transmissive display 112, respectively. Viewed from one point, it displays as 2D image 107,108 so that it may overlap.

This can be achieved, for example, by controlling the arrangement of each center position or center position of the 2D images 107 and 108 and the enlargement / reduction ratio of each image.

On the apparatus having the above-described configuration, the image viewed by the observer 100 is light emitted from the light source 110, and is generated by light passing through the 2D image 108 and further passing through the 2D image 107.

In the three-dimensional display device shown in FIG. 8, on the device having the above configuration, the three-dimensional object 104 is maintained while the distribution of the transmittances of the 2D images 107 and 108 is maintained while maintaining the overall luminance viewed from the observer 100. ), And the three-dimensional stereoscopic image of the three-dimensional object existing between the transmissive display 111 and the transmissive display 102 is displayed. Therefore, this three-dimensional display device will be referred to as a transmittance distribution type DFD display device.

An example of a method of converting each transmittance of the 2D images 107 and 108 will be described.

For example, when the three-dimensional object 104 is on the transmissive display 111, the transmittance on the transmissive display 111 is such that the luminance of the 2D image 107 is equal to the luminance of the three-dimensional object 104. The transmittance of the portion of the 2D image 108 on the transmissive display 112 is set to, for example, the maximum value of the transmissive display 112.

Next, for example, when the three-dimensional object 104 is slightly away from the observer 100, and is slightly biased toward the transmissive display 112 rather than the transmissive display 111, the transmissive display 111. The transmittance of the portion of the 2D image 107 on the image is slightly increased, and the transmittance of the portion of the 2D image 108 on the transmissive display device 112 is slightly reduced.

Next, for example, when the three-dimensional object 104 is farther from the observer 100 and is located at a position more biased toward the transmissive display device 112 than the transmissive display device 111, the transmissive display device 111 is positioned on the transmissive display device 111. The transmittance of the portion of the 2D image 107 is further increased, and the transmittance of the portion of the 2D image 108 on the transmissive display 112 is further reduced.

For example, when the three-dimensional object 104 is on the transmissive display 112, the transmittance on the transmissive display 112 is determined by the luminance of the 2D image 108 and the luminance of the three-dimensional object 104. It is set to be equal, and the transmittance | permeability of the part of the 2D image 107 on the transmissive display 111 is made into the maximum value of the transmissive display 111, for example.

By displaying in this way, even if the 2D images 107 and 108 are displayed by the physiological or psychological factors or illusions of the observer (person; 100), the observer 100 is as if in the middle of the transmissive display devices 111 and 112. It feels as if the three-dimensional object 104 is located.

That is, for example, when the 2D images 107 and 108 of substantially uniform brightness are displayed on the transmissive display devices 111 and 112, the three-dimensional object ( 104) It feels like there is. In this case, the three-dimensional object 104 is perceived by the observer 100 with a three-dimensional effect.

In the above description, the method of expressing the depth position of the entire three-dimensional object using the two-dimensional image displayed on the transmissive display devices 111 and 112 has been mainly described, but the transmittance distribution type DFD shown in FIG. It is clear that the display device can also be used as a method of expressing the depth of the three-dimensional object itself by the same method as described in the three-dimensional display device shown in FIG.

Also in the transmittance distribution type DFD display device shown in FIG. 8, when the 2D image is moved three-dimensionally by the same method as described in the luminance distribution type DFD display device shown in FIG. Movement in the left, right, up, and down directions is possible by moving picture reproduction in the transmissive display device as in the case of a normal two-dimensional display device, and a plurality of transmissive display devices are used for movement in the depth direction. It is clear that a three-dimensional stereoscopic moving picture can be expressed by changing the transmittance in time.

As described above, in the luminance distribution type DFD display device of FIG. 1, the luminance of the 2D image displayed on the surface closer to the three-dimensional object 104 is the 2D image displayed on the surface farther from the three-dimensional object 104. In contrast to increasing the luminance of the light, the transmittance distribution DFD display device shown in FIG. 8 displays the transmittance of the 2D image displayed on the transmissive display device closer to the three-dimensional object 104, and the transmissive display farther from the three-dimensional object 104. FIG. It is different in that it reduces than the transmittance | permeability of the 2D image displayed on an apparatus.

Therefore, in the transmittance distribution type DFD display device of FIG. 8, the depth of the three-dimensional object itself is expressed by using the same method as the luminance distribution type DFD display device of FIG. In the case of increasing the luminance of the 2D image displayed on each display surface in the luminance distribution type DFD display device, the transmittance of the 2D image displayed on each transmission type display device is reduced, and the luminance distribution type DFD display device is further reduced. In the case where the brightness of the 2D image displayed on each display surface is reduced, the transmittance of the 2D image displayed on each transmissive display device may be increased.

FIG. 9 is an example of the transmittance distribution type DFD display device using the liquid crystal display in which the liquid crystal panel is fitted with two polarizing plates as the transmissive display devices 111 and 112 in FIG. 8. In this structure, each liquid crystal display is arrange | positioned so that the polarization direction of the two polarizing plates arrange | positioned between two liquid crystal panels may correspond. In addition, any one of two polarizing plates arrange | positioned between two liquid crystal panels may be abbreviate | omitted. The liquid crystal panel of the liquid crystal display functions as a deflection variable device that can change the polarization direction of light incident through the polarizing plate on the incident side. For this reason, the liquid crystal display can change the intensity of the light emitted by changing the relationship between the polarization direction of the emission light from a liquid crystal panel and the polarization direction of the polarizing plate of an emission side, and can change the transmittance of light as a whole. have. Therefore, by setting it as such a structure, this display apparatus can change the transmittance | permeability on the two-dimensional image in the transmissive display apparatuses 111 and 112, respectively independently.

In the transmittance distribution type DFD display of Fig. 9, the observer observes the light emitted from the light source through two liquid crystal displays. Therefore, in the apparatus of this structure, for example, when it is desired to display a white display object corresponding to the highest luminance on the screen, the transmittance of the pixel corresponding to the display object is maximized in both of the two liquid crystal displays. Almost transparent). At this time, the observer cannot observe the overlapping two substantially transparent images, and therefore cannot perceive the depth of the display object. Therefore, in the transmittance distribution type DFD display device of FIG. 9, it is impossible to display a white display object in three dimensions in the depth direction.

In addition, even if it is not white, in the display object of bright hue with high brightness, since the transmittance | permeability must be distributed between two liquid crystal displays, making the total brightness seen from an observer the same as that of a display object, the combination which distributes transmittance | permeability The number of is limited and the display accuracy of the depth position is inferior.

Hereinafter, an embodiment of the present invention will be described assuming a luminance distribution type DFD display device shown in FIG.

Example 1

FIG. 10 is a block diagram showing a schematic configuration of a three-dimensional display device according to the first embodiment of the present invention, and shows a figure having a luminance lower than that of the background on a background of a color having an arbitrary luminance, which is displayed at an arbitrary depth position. It is a figure which shows the case where it displays.

In FIG. 10, 1 is an observer, 21 and 22 are two display surfaces located at different depths from the observer 1 which display a two-dimensional image, and 31 and 32 are luminance on two display surfaces. 41 and 42 are planes which serve as a background displayed by distributing, and 41 and 42 have a luminance lower than that of the background perceived by the observer 1 and displayed on two display planes, and the planes 31 as a two-dimensional background on the display plane. It is a figure displayed on the upper surface and the surface 32 with the same brightness | luminance.

In this embodiment, the case where two two-dimensional images are displayed by dividing the luminance is shown, but in the case of three or more sheets, the object can be realized by the same method.

In the present embodiment, the surfaces 31 and 32 serving as the background of the figures are displayed by changing the luminance on the two display surfaces, and are also displayed at precisely overlapping positions as seen from the observer 1, As described in the DFD type three-dimensional display device shown in FIG. 1 described above, the surface serving as the background of the figure is as if the viewer is present at an arbitrary position between the display surface 21 and the display surface 22. Perceived by 1).

On the other hand, the figures 41 and 42 perceived darker than the surface serving as the background are displayed on the two display surfaces 21 and 22 with the same luminance. At this time, if the surface serving as the background of the figure does not exist, since it is displayed with the same luminance on the two two-dimensional images, it is perceived as if the figure exists at the position exactly in the middle of the two two-dimensional images 21 and 22. However, due to the presence of the surface serving as the background, the observer 1 is perceived as if the figure is displayed on the background.

In the present embodiment, the figures 41 and 42 have also been described in the case where the figures have arbitrary luminance values. However, when the figures have zero luminance, both of the figures 41 and 42 shown in the figure have zero luminance. Similarly, the black figure is perceived by the observer 1 as if a black figure is displayed on the surface which becomes the background perceived at an arbitrary depth position.

Example 2

Fig. 11 is a block diagram showing a schematic configuration of a three-dimensional display device according to a second embodiment of the present invention. Character information having a luminance lower than that of a background on a background of a color having an arbitrary luminance, displayed at an arbitrary depth position. It is a figure which shows the case of displaying.

In Fig. 11, 1 is an observer, 23, 24 and 25 are three display surfaces located at different depths as seen from the observer 1 displaying a two-dimensional image, and 33, 34 and 35 are three display surfaces. 51, 52, and 53 are displayed on three display surfaces, each having a luminance lower than that of the surface used as the background perceived by the observer 1, and having the same luminance. Character information to be displayed.

In the present embodiment, the case where three display surfaces for dividing luminance to display a two-dimensional image is shown. However, even when the display surfaces are two or four or more, the object can be realized by the same method.

In the present embodiment, the surfaces 33, 34 and 35 serving as the background of the characters are displayed with different luminance on each display surface, and are also displayed at the positions overlapping exactly from the observer 1, The left side of the surface 33 and the surface 34 serving as the background is perceived by the observer 1 as if it exists at a position between the display surface 23 and the display surface 24, and the surface serving as the background ( The right part and the surface 35 of 34 are perceived by the observer 1 as if they exist at a position between the display surface 24 and the display surface 25.

On the other hand, the character information 51, 52, 53 are displayed with the same brightness on three display surfaces, and the presence of the background causes the observer 1 to display the character information as if on the respective backgrounds having different depth positions. As it is, it is perceived.

In the present embodiment, the case where the character information also has a luminance value is described, but when the luminance of the character information is zero, all of the character information 51, 52, 53 shown in Fig. 11 is set to zero luminance. Similarly, the black character information is perceived by the observer 1 as if it is displayed on the background perceived at an arbitrary depth position.

Example 3

12 is a block diagram showing a schematic configuration of a three-dimensional display device of Embodiment 3 of the present invention. As shown in Fig. 12, the third embodiment uses an apparatus for generating a two-dimensional image by digital information such as pixel values having 256 gray levels, such as a personal computer, at an arbitrary depth position. This is a case where characters having a luminance darker than the background are displayed on a background of a color having a certain luminance displayed. In addition, although the apparatus for generating a two-dimensional image is also included in the three-dimensional display device in the first and second embodiments, the first and second embodiments of the present invention are described in terms of explaining the principle of the technique according to the present invention. The illustration is omitted.

In Fig. 12, 61 is a two-dimensional image output device for outputting two-dimensional image data by pixel values as digital information, like a computer, and 62 and 63 are arranged at different depths from the observer 1, and the two-dimensional image output device ( A two-dimensional display device for displaying the two-dimensional image output from 61, and 64 is a cable connecting the two-dimensional image output device 61 and the two-dimensional display devices 62 and 63.

Patent Document 2 mentioned above discloses a method of displaying a plurality of computer-controlled display devices overlaid as shown in this embodiment, and the device itself.

In addition, in this embodiment, although the case where the two-dimensional image output apparatus 61 with two systems of image output was used as one is shown, even if two two-dimensional image output apparatuses each having one system of output are used, the same thing is used. Of course, the display and the effect are realized.

26 and 27 are display surfaces on two two-dimensional display devices 62 and 63 located at different depths as viewed from the observer 1, and 36 and 37 are displayed on two display surfaces 26 and 27 at different pixel values. 54, 55 are perceived as luminance darker than the luminance of the background 36, 37 perceived by the observer 1 on the two two-dimensional images 26, 27, and the background is a two-dimensional image of the character background indicated by It is a two-dimensional image of the character represented by the same pixel value on the surface 36 and 37 to become.

In this embodiment, the case where there are two two-dimensional images displayed by dividing the luminance by changing the pixel values is shown. However, even in the case of three or more sheets, the object can be realized in the same manner as in the first embodiment.

Also in the present embodiment, the surfaces 36 and 37 serving as the background of the characters are displayed with different pixel values on the two display surfaces 26 and 27, so that they are perceived at different luminance and viewed from the observer 1 as well. Since it is displayed at the position which overlaps precisely, as it exists in the arbitrary position between the display surface 26 and the display surface 27 as demonstrated in the luminance distribution type DFD display apparatus shown in FIG. 1 mentioned above, Perceived by the observer 1.

On the other hand, the character information 54, 55 perceived darker than this surface is displayed at the same luminance on the two display surfaces 26, 27, so that the viewer 1 is perceived as if the characters are displayed on the background.

In the present embodiment, when the pixel value of the character information 54, 55 is zero, the same effect is obtained by displaying the pixel value zero on each display device.

13 shows an example of the functional configuration of the two-dimensional image output device 61. As shown in Fig. 13, the two-dimensional image output device 61 includes a two-dimensional image calculation unit 611 that calculates each two-dimensional image for display on the two-dimensional display device, based on the input image information. A luminance determination unit 612 which performs threshold value determination of luminance values on the basis thereof, and a luminance value calculation unit 613 that performs a process of calculating luminance values on each two-dimensional image for display on a two-dimensional display device based on depth information, and the like. have. Moreover, the two-dimensional display apparatus which comprises each display surface is connected.

The two-dimensional image output device 61 can be realized by using a general computer equipped with a CPU, a storage device and the like. Each functional unit is a functional unit realized by executing a program according to the present invention on the computer.

Next, the operation of the two-dimensional image output device 61 will be described with reference to the flowchart in FIG.

Here, it is assumed that the range of the background for the display object is specified in advance, and the image information including the designated range is input to the two-dimensional image output device 61. In addition, it is assumed that a predetermined threshold for comparing with the luminance value of the display object is predetermined and stored in the storage device. In this embodiment, the display object is a letter.

First, when the luminance value and the depth value for the display object and the background are input to the two-dimensional image output device 61 as the image information and the depth information (step 1), the two-dimensional image calculation unit 611 regards the display object and the background. The two-dimensional image for each display surface is calculated (step 2).

In addition, the luminance determining unit 612 determines whether or not the luminance value of the display object is equal to or less than a predetermined threshold (step 3). When the luminance value of the display object is less than or equal to the predetermined threshold value, the luminance determination unit 612 determines whether the luminance value of the display object is smaller than the luminance value of the background (step 4). If the luminance value of the display object is smaller than the luminance value of the background here, the luminance value calculating unit 613 calculates the luminance value of each two-dimensional image of the background according to the depth value of the display object (step 5A). The luminance value calculation unit 613 then sets the luminance values on the two-dimensional objects of the display object to the same values (step 6A). Here, when setting the luminance value of each two-dimensional image of a display object to the same value, it sets so that the overall luminance when observing each displayed two-dimensional image in superimposition is equal to the luminance of a display object. Then, the calculated two-dimensional images are output to the corresponding two-dimensional display apparatus (step 7).

When the luminance value of the display object in step 3 is larger than the predetermined threshold value, or when the luminance value of the display object in step 4 is equal to or greater than the luminance value of the background, the luminance value calculation unit 613 performs a luminance value on each two-dimensional background of the background. It calculates according to the depth value of a background (step 5B), and calculates the luminance value of each two-dimensional image of a display object according to the depth value of a display object (step 6B). Then, the calculated two-dimensional images are output to the corresponding two-dimensional display apparatus (step 7).

In the flowchart shown in FIG. 14, when the luminance value of the display object is less than or equal to the predetermined threshold in step 3, it is determined whether the luminance value of the display object is smaller than the luminance value of the background in step 4, and the display is small. The process which makes the luminance value of each two-dimensional object of the object the same is performed. Instead of this processing, in step 3, when the luminance value of the display object is equal to or less than the predetermined threshold value, the luminance value of the background may be changed so that the luminance value of the background becomes larger than the luminance value of the display object. In this case, if the luminance value of the display object is equal to or less than the predetermined threshold value, the processing is performed to make the luminance values of the two-dimensional objects of the display object the same.

The flowchart in this case is shown in FIG. As shown in FIG. 15, when the luminance value of the display object is less than or equal to the predetermined threshold in step 3, the luminance value calculation unit 613 changes the luminance value of the background so that the luminance value of the background becomes larger than the luminance value of the display object. (Step 4 '). In addition, when the luminance value of the original background is larger than the luminance value of the display object, the change may not be necessary. For example, the luminance value of the original background may be changed to a sufficiently large predetermined value so that the luminance value of the background becomes larger. Thereafter, the processing of Step 5A is performed based on the changed luminance value of the background. The other processing is the same as the processing shown in FIG.

In addition, in the present embodiment, an example is described in which the display object is a letter, but the display object is not limited to the letter. For example, it is possible to use a figure or the like as the display object.

Example 4

16A and 16B show a three-dimensional display device according to a fourth embodiment of the present invention, in which the present invention is applied to application software for input editing of character information such as a word processor. FIG. 16A shows a case where the surface that is the background after the row where the cursor, which is the input position of the character, is displayed at a depth position different from the background of the row where the cursor is located and the row above it is shown in FIG. 16A. 16B shows a case where the surface serving as the background of the row above the row where the cursor, which is the input position of the character, is displayed at a depth position different from the background of the row where the cursor is located and the part below it. do.

In this embodiment, only the part which displays the character of each application software is shown in the state actually perceived by the observer 1, and actually, as shown in FIG. 10, FIG. 11, FIG. On the display surface, the background portion is displayed with the luminance changed, and the character information portion is displayed at the same luminance on each display surface.

In Figs. 16A and 16B, 201 and 202 are character input screens of character input / editing software, and are arbitrary faces which are perceived at an arbitrary depth position by the observer 1 as a background of character information. In addition, 211 is character information perceived as displayed on the surface serving as the background, 301 is a step between two surfaces serving as the background of the character displayed at different depth positions, and 401 is a cursor which becomes the input position of the character. to be.

In addition, in Fig. 16B, for example, copying, cutting, pasting, character searching, etc. required when inputting and editing character information in the stepped portion 301 between two background faces displayed at different depth positions are performed. A button 501 for calling a function is provided.

In the present embodiment, by displaying the background and text information at different depths on the basis of the cursor 401, which is the input position of the text, the place currently being edited can be seen at a glance. It is easy and easy to use.

In addition, as shown in Fig. 16B, the step 301 existing near the cursor position is provided with a button 501 for calling a function required for inputting and editing characters, so that a conventional character input screen is conventionally used. Although it was necessary to move the cursor by a mouse or the like to the button existing above, it is possible to call a function by moving a small cursor, thereby improving usability.

In the present embodiment, the stepped portion present near the cursor position shows a state where the surface of the stepped portion is formed at an angle from the direction perpendicular to the display surface, and as a result, input / edit of the character shown in Fig. 16B is performed. Although the upper surface of the button for calling up the function required for the function is shown, the button for calling the function protrudes from the surface of the stepped portion, even if the stepped portion is perpendicular to the display surface, even if the surface of the stepped portion is not visible. By the shape, the observer 1 can grasp the position of the button and can operate the button.

In addition, in FIG. 16A, the surface 201 serving as the background is perceived to be in a position immediately before the observer 1 than the surface 202 serving as the background, and in FIG. 16B, the surface 202 serving as the background is the background. Although the case where it is perceived immediately before the surface 201 to be used is shown, even if the depth positional relationship is reversed in the surface 201 used as the background and the surface 202 used as the background, of course, the same effect is obtained.

In addition, in the case of FIGS. 16A and 16B, when character input or editing is in progress and the position of the cursor 401 moves to the next line in the line shown in the figure, character input of the character input / editing software. The positions of the stepped portions 301 of the screens 201 and 202 are shifted by one row or less. At this time, even if the display of the step is changed instantly with the movement of the cursor, or if the display of the step is animated from the original row position to the next row position continuously, the effect obtained does not change. In the case of continuous change, such display is possible if the same method as in the above-described moving picture reproduction is taken.

The display shown in FIG. 16A and FIG. 16B can be performed by the two-dimensional image output apparatus which has the function part shown in FIG. In this case, the two-dimensional image output device includes an application unit in addition to the functional unit shown in FIG. 13, and the application unit includes two-dimensional image calculation units 611, luminance values and depth values of the display object (characters) and the background. It is passed to the luminance determining unit 612 and the luminance value calculating unit 613.

For example, in the case of FIG. 16A, the background is divided into a row in which the cursor exists and a row before (upper) and a row behind (lower) the row in which the cursor exists, and the upper background and the lower background At the same time, the depth value of the character and the cursor are different, and the depth value of the background itself is equal to the depth value of the character located on the lower background. Then, the luminance value calculating unit 613 calculates the luminance value of each two-dimensional image of the upper background portion according to the depth value of the character or the cursor (step 5A), and the luminance value of each two-dimensional image of the lower background portion on the background. If a character is present, it is calculated according to the depth value of the character (step 5A). If there is no character on the background, it is calculated according to the depth value of the background portion (step 5B). Thereby, the depth position of the lower background can be made constant regardless of the presence or absence of characters.

In addition, in the case of Fig. 16B, the background is divided into a row before (upper) the row where the cursor exists and a row where the cursor exists and a row (below) below it, and the characters and The depth value of the cursor is made different, and the depth value of the background itself is made equal to the depth value of the character located on the upper background. Thereby, the depth position of the upper background can be made constant regardless of the presence or absence of a character. Further, in the part of the step, the luminance value calculating unit 613 calculates the luminance value on each two-dimensional plane in accordance with the given depth value such that the three-dimensional feeling of the step occurs.

Example 5

Fig. 17 is a three-dimensional display device according to a fifth embodiment of the present invention, showing an example in which the present invention is applied to application software for input editing of character information such as a word processor, and corresponding to the result of searching for a character string in a sentence. It is a figure which shows the example which displays the background of a part in a depth position different from another background.

Also in FIG. 17, like FIG. 16A and FIG. 16B, only the part which displays the character of each application software is shown in the state actually perceived by the observer 1. As shown in FIG.

In Fig. 17, 201 is a surface serving as the background of the text input screen, 203 is a background of the searched character string portion, and the background 203 is set by the user so that the searched portion is highlighted. It is displayed so as to be perceived at a position immediately before the face 201, which is effective for the user.

As described above, in the case of strongly emphasizing the searched character compared with other parts, it is effective to immediately display the display position. However, if only the searched character string is displayed more clearly than the other parts, the background 203 of the searched character string part is displayed. Even if the display is displayed at a position inside the surface 201, which is the background of the character input screen, the display can be easily understood, and in this case as well, the effect of the present invention can be obtained.

In addition, in the present embodiment, when the display position of the background of the searched character is changed, the search result is found, and at the same time, the display position of the background is changed instantaneously, or the animation is continuously searched from the original display position. Even if it changes to the display position which shows a character, the effect obtained does not change, and the realization means is the same as that of Example 4.

This embodiment can also be realized by providing an application unit in the two-dimensional image output device shown in FIG. 13 as described in the fourth embodiment. In the present embodiment, for example, the application unit passes the image information (range, etc.) of the background portion corresponding to the retrieved character to the two-dimensional image calculating unit 611, and the depth value of the character of that portion is the luminance value calculating unit ( It passes to 613, and the brightness value calculation part 613 calculates the brightness value in each two-dimensional according to the range and depth value of the background part.

Example 6

Fig. 18 is a diagram showing a three-dimensional display device according to a sixth embodiment of the present invention, in which the present invention is applied to application software for inputting and editing character information, such as a word processor, in which a character string in a sentence is selected. At this time, it is a figure which shows the example which displays the background of the part in a depth position different from other background.

Also in FIG. 18, similarly to FIG. 16A, FIG. 16B, and FIG. 17, only the part which displays the character of each application software is shown in the state perceived by the observer 1 actually.

In Fig. 18, 201 is a surface serving as a background of the text input screen, 204 is a background serving as the background of the selected character string portion, and a surface 204 is used as a background of the text input screen by the user so that the selected portion is highlighted. 201) is indicated to be perceived as a position ahead. Thereby, the user has the effect that the selected character part becomes easy to understand.

Also in the present embodiment, when the selected character is strongly emphasized, it is effective to immediately display the selected position. However, if only the selected character string is displayed more clearly than other portions, the background 204 of the selected character string portion is displayed. Even if it displays in the position inside the surface 201 which becomes the background of an input screen, a clear display is possible, and also in this case, the effect by this invention is a matter of course.

In addition, in this embodiment, even if the character is selected and at the same time changes the display position of the background or changes the animation continuously, the effect is the same. The same as in the case of Example 5.

This embodiment can also be realized by providing an application unit in the two-dimensional image output device shown in FIG. 13 as described in the fourth embodiment. In the present embodiment, for example, the application unit passes the image information (range, etc.) of the background portion corresponding to the selected character to the two-dimensional image calculating unit 611, and the depth value of the character of that portion is the luminance value calculating unit ( It passes to 613, and the brightness value calculation part 613 calculates the brightness value in each two-dimensional according to the range and depth value of the background part.

As described above, in Figs. 16A to 18, examples of applying the present invention to application software for inputting and editing character information have been presented. However, in the present invention, since the depth position of the surface serving as the background of the character can be arbitrarily set, Even when the embodiment shown in Figs. 16A to 18 is carried out at the same time, the same effect can be obtained even by simultaneously adjusting the depth positions to be emphasized, respectively.

Example 7

Fig. 19 is a three-dimensional display device according to a seventh embodiment of the present invention, which shows a case where the present invention is applied to menus of various applications and operating systems.

In Fig. 19, 511 is a menu of an application or the like, 512 is a submenu, 601 is a pointer, 205 is a side which is a background of a menu, 206 is a side which is a background of a submenu, and 207 is a side of a selected menu. This is the background.

In the present embodiment, as in the normal two-dimensional display, the pointer 601 is moved with a mouse or the like to match any item of the menu 511. In some cases, when the mouse button is clicked, the background of the selected item is displayed. 206 is displayed at a different depth position than other backgrounds, and submenu 512 is displayed with the background displayed at the same depth position.

Further, by moving the pointer 601 to align the pointer 601 with one item of the submenu 512, and in some cases, by clicking a mouse button, the background 207 of the selected menu becomes the background 206 of the submenu. ) Is also indicated by a different depth position. Thereby, the menu currently selected for a user is displayed clearly, and usability improves.

Further, in the present embodiment, the effect is the same even if the pointer 601 is adjusted to the menu and the background depth position is momentarily changed or animated continuously. The effect is the same as that of the fourth embodiment. , 5 and 6 are the same.

This embodiment can also be realized by providing an application unit in the two-dimensional image output device shown in FIG. 13 as described in the fourth embodiment. In this embodiment, for example, the application unit passes the image information (range, etc.) of the menu portion selected by the mouse to the two-dimensional image calculating unit 611, and the depth value of the character of the portion is the luminance value calculating unit 613. Is passed to, and the luminance value calculating unit 613 calculates the luminance value of each two-dimensional image in accordance with the range and depth value of the portion.

As described above, in the present embodiment, in the three-dimensional display method in which three-dimensional images can be displayed at high resolution by superimposing two-dimensional images and changing the respective brightnesses independently, relatively low luminance is displayed in comparison with the background. It is possible to display small size characters at arbitrary depth positions.

Further, by applying the present invention to an application for inputting and editing character information, an application that is easy to understand and easy to use for the user, such as simply grasping an input editing position of a character, a search result, and a selection position of a character Software can be provided.

[Example using transmissive distribution DFD display]

In the first to seventh embodiments described above, the luminance distribution type DFD display device shown in FIG. 1 has been described as a premise. However, in the case of using the transmittance distribution type DFD display device shown in FIG. May be performed as follows.

That is, in the case of displaying a display object having a brightness brighter than the background, the two-dimensional image is displayed for the background by distributing the transmittance to a plurality of transmissive display devices, and for the display object, the two-dimensional image is displayed in a plurality of transmissive displays. The same transmittance may be displayed on the device.

20 shows the functional configuration of the two-dimensional image output device 71 in the case of using the transmittance distribution type DFD display device.

As shown in FIG. 20, the two-dimensional image output device 71 includes a two-dimensional image calculation unit 711 for calculating each two-dimensional image for display on a transmissive display device based on the input image information, and the input image information. A luminance determination unit 712 for determining a threshold value of the luminance value, and the like, and a transmittance value calculation unit 713 for processing for calculating the transmittance value of each two-dimensional image to be displayed on the transmissive display device based on the depth information. Have In addition, transmissive display devices constituting each display surface are connected.

Similar to the two-dimensional image output device 61, the two-dimensional image output device 71 can be realized using a general computer provided with a CPU, a storage device and the like. Each of the functional units is a functional unit realized by executing the program according to the present invention on the computer.

Next, the operation of the two-dimensional image output device 71 will be described with reference to the flowchart in FIG. 21.

Here, it is assumed that the range of the background for the display object is specified in advance, and the image information including the specified range is input to the two-dimensional image output device 71. In addition, it is assumed that a predetermined threshold for comparing with the luminance value of the display object is predetermined and stored in the storage device.

First, when the luminance value and the depth value for the display object and the background are input to the two-dimensional image output device 71 as the image information and the depth information (step 11), the two-dimensional image calculation unit 711 makes a difference between the display object and the background. The two-dimensional image for each display surface is calculated (step 12).

In addition, the luminance determining unit 712 determines whether or not the luminance value of the display object is equal to or greater than a predetermined threshold (step 13). When the luminance value of the display object is greater than or equal to the predetermined threshold value, the luminance determination unit 712 determines whether the luminance value of the display object is larger than the luminance value of the background (step 14). If the luminance value of the display object is larger than the luminance value of the background, the transmittance value calculation unit 713 calculates the transmittance value on each two-dimensional image in the background according to the depth value of the display object (step 15A). And the transmittance value calculation part 713 sets the transmittance value on each two-dimensional object of a display object to the same value (step 16A). Here, when setting the transmittance value of each two-dimensional image of the display object to the same value, the total luminance when the two-dimensional images displayed are superimposed and set is set to be equal to the luminance of the display object. Then, the calculated two-dimensional images are output to the corresponding transmissive display device (step 17).

In step 13, when the luminance value of the display object is smaller than the predetermined threshold value, or when the luminance value of the display object in step 14 is equal to or less than the luminance value of the background, the transmittance value calculation unit 713 determines the transmittance value on each two-dimensional background. It calculates according to the depth value of a background (step 15B), and calculates the transmittance value of each two-dimensional image of a display object according to the depth value of a display object (step 16B). Then, the calculated two-dimensional images are output to the corresponding transmissive display device (step 17).

In the flowchart shown in FIG. 21, when the luminance value of the display object is greater than or equal to the predetermined threshold in step 13, it is judged whether or not the luminance value of the display object is larger than the luminance value of the background in step 14, and the display is large. The process which makes the permeability value of each two-dimensional object the same is performed. Instead of this processing, in step 13, when the luminance value of the display object is equal to or greater than the predetermined threshold value, the luminance value of the background may be changed so that the luminance value of the background becomes smaller than the luminance value of the display object. In this case, if the luminance value of the display object is equal to or greater than a predetermined threshold value, the process of making the same transmittance value on each two-dimensional image of the display object is necessarily performed.

The flowchart in this case is shown in FIG. As shown in Fig. 22, in step 13, when the luminance value of the display object is equal to or greater than the predetermined threshold value, the transmittance value calculation unit 713 changes the luminance value of the background so that the luminance value of the background becomes smaller than the luminance value of the display object. (Step 14 '). In addition, when the luminance value of the original background is smaller than the luminance value of the display object, the change may not be necessary. For example, the luminance may be changed to a sufficiently small predetermined value so that the luminance of the background becomes smaller. Thereafter, the process of step 15A is performed based on the changed luminance value of the background. The other processing is the same as the processing shown in FIG.

As mentioned above, although the invention made by this inventor was demonstrated concretely based on the said Example, this invention is not limited to the said Example, Of course, a various change is possible in the range which does not deviate from the summary.

Claims (51)

As a three-dimensional display method in which two-dimensional images are displayed on a plurality of display surfaces at different depth positions viewed from an observer by changing luminance, and three-dimensional stereoscopic images are displayed. When displaying a display object having a luminance lower than the luminance of the surface serving as the background on the surface serving as the background displayed at an arbitrary position in the three-dimensional space, A first two-dimensional image is projected from the observer's line of sight with respect to the plurality of display surfaces, and a luminance in the generated first two-dimensional image is generated for each of the display surfaces. Each independently changed to display the first two-dimensional image on each of the display surfaces, and simultaneously generate a second two-dimensional image of the plurality of display surfaces, the projection object being projected from an observer's line of sight; And displaying the second two-dimensional image on the respective display surfaces with the same luminance in the second two-dimensional image among the display surfaces. The three-dimensional display method according to claim 1, wherein the luminance on the second two-dimensional image displayed on each display surface is zero. The display apparatus according to claim 1, wherein the second two-dimensional image is a two-dimensional image whose luminance is controlled by a pixel value having a predetermined gray scale, And a pixel value of the second two-dimensional image displayed on each of the display surfaces is zero. As a three-dimensional display method in which two-dimensional images are displayed by varying transmittances on a plurality of display surfaces at different depth positions as viewed from an observer, and three-dimensional stereoscopic images are displayed. When displaying a display object having a brightness that is brighter than the luminance of the surface serving as the background on the surface serving as the background displayed at an arbitrary position in the three-dimensional space, A first two-dimensional image is projected by projecting the surface serving as the background to the plurality of display surfaces from an observer's gaze direction, and the transmittance in the generated first two-dimensional image is changed independently for each of the display surfaces. While displaying the first two-dimensional image on each of the display surfaces, a second two-dimensional image of projecting the display object from the observer's line of sight with respect to the plurality of display surfaces is generated, and the generated second two-dimensional image is generated. The second two-dimensional image is displayed on each of the display surfaces with the same transmittance in each of the display surfaces. The three-dimensional display method according to claim 4, wherein the transmittance on the second two-dimensional image displayed on each of the display surfaces is maximum. The method according to claim 4, wherein the second two-dimensional image is a two-dimensional image whose transmittance on the display surface is controlled by a pixel value having a predetermined gray scale, And the pixel value on the second two-dimensional image displayed on each of the display surfaces is a value indicating the maximum transmittance. The display object according to any one of claims 1 to 6, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. Displaying the surface on the background of the row after the row where the cursor indicating the input or editing position of the character information exists, and the surface on the background of the row before the row where the cursor is present, at different depth positions. Three-dimensional display method characterized by. The display object according to any one of claims 1 to 6, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. Characteristic information is displayed at different depth positions on the background of the row where the cursor indicating the character information input or editing position exists and the background of the row after it, and the background of the row before the row where the cursor exists. Three-dimensional display method. 8. A button or mark for displaying a menu indicating an input or editing function of character information is displayed on a stepped portion between two background surfaces displayed at different depth positions. 3D display method. The display object according to any one of claims 1 to 6, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. And displaying the surface serving as the background of the selected character information part and the surface serving as the background of the other character information at different depth positions. The display object according to any one of claims 1 to 6, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. A three-dimensional display method characterized by displaying a surface serving as a background of a text information portion searched by a search function and a surface serving as a background of other text information at different depth positions. The display object according to any one of claims 1 to 6, wherein the display object is character information, The surface serving as the background is a background of a table or a menu in which character information is displayed arranged side by side and a selection of character information in a batch is possible. And displaying the surface serving as the background of the selected character information part and the surface serving as the background of the other character information at different depth positions. A three-dimensional display device for displaying three-dimensional stereoscopic images by displaying two-dimensional images by varying luminance on a plurality of display surfaces at different depth positions as viewed from an observer, The display object is an object having a luminance lower than that of the surface serving as the background displayed on the surface serving as the background displayed at an arbitrary position in the three-dimensional space, First means for generating a first two-dimensional image in which the surface serving as the background of the plurality of display surfaces is projected from an observer's gaze direction; The luminance in the first two-dimensional image generated by the first means is changed for each of the display surfaces independently, so that the first two-dimensional image is displayed on each of the display surfaces, and the surface serving as the background is arbitrarily selected in the three-dimensional space. Second means for marking at the position of, Third means for generating a second two-dimensional image of the plurality of display surfaces, the projection object being projected from a viewing direction of the observer; And a fourth means for displaying the second two-dimensional image on each display surface by making the luminance in the second two-dimensional image generated by the third means the same between the respective display surfaces. Device. The three-dimensional display device according to claim 13, wherein the luminance on the second two-dimensional image displayed on each display surface is zero. The method according to claim 13, wherein the second two-dimensional image is a two-dimensional image in which the displayed luminance is controlled by a pixel value having a predetermined gray scale, And the pixel value of the second two-dimensional image displayed on each display surface is zero. A three-dimensional display device displaying two-dimensional images by displaying two-dimensional images on a plurality of transmissive display devices located at different depths from an observer, The display object is an object having a brightness that is brighter than that of the surface serving as the background displayed on the surface serving as the background displayed at an arbitrary position in the three-dimensional space, First means for generating a first two-dimensional image in which the surface serving as the background with respect to the display surfaces of the plurality of transmissive display devices is projected from an observer's gaze direction; Transmittance of the first two-dimensional image generated by the first means is changed independently for each of the transmissive display devices, thereby displaying the first two-dimensional image on the transmissive display device, and the surface serving as the background is a three-dimensional space. Second means for displaying at any position in the Third means for generating a second two-dimensional image of the display surfaces of the plurality of transmissive display devices, the projection object being projected from a viewing direction of the observer; And fourth means for displaying the second two-dimensional image on the respective transmissive display devices by making the transmittance in the second two-dimensional image generated by the third means the same between the respective transmissive display devices. 3D display. 17. The three-dimensional display device according to claim 16, wherein the transmittance on the second two-dimensional image displayed on each of the transmissive display devices is maximum. 17. The display device according to claim 16, wherein the second two-dimensional image is a two-dimensional image in which the transmittance in the transmissive display device is controlled by a pixel value having a predetermined gray scale, And the pixel value on the second two-dimensional image displayed on each of the transmissive display devices is a value indicating a maximum transmittance. The display object according to any one of claims 13 to 18, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. The second means differs between a surface serving as a background of a row behind a row where a cursor indicating an input or editing position of character information exists and a surface serving as a background of a row where the cursor is present and a row before that. Three-dimensional display device characterized in that the display at the depth position. The display object according to any one of claims 13 to 18, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. The second means has a different depth between the surface on which the cursor indicating the input or editing position of the character information exists and the surface which is the background of the row after it, and the surface that is the background of the row before the row where the cursor is present. A three-dimensional display device characterized in that the display at the position. 20. The display apparatus according to claim 19, wherein said second means displays a button or a mark for displaying a menu indicating a function of inputting or editing character information on a step portion between two background surfaces displayed at different depth positions. Three-dimensional display device characterized in that. The display object according to any one of claims 13 to 18, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. And said second means displays the surface serving as the background of the selected character information portion and the surface serving as the background of other character information at different depth positions. The display object according to any one of claims 13 to 18, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. And said second means displays the surface serving as the background of the text information portion searched by the search function and the surface serving as the background of other text information at different depth positions. The display object according to any one of claims 13 to 18, wherein the display object is character information, The surface serving as the background is a background of a table or a menu in which character information is displayed arranged side by side and a selection of character information in a batch is possible. And said second means displays the surface serving as the background of the selected character information portion and the surface serving as the background of other character information at different depth positions. A computer-readable recording medium having recorded thereon a program which functions as a three-dimensional display device for displaying a three-dimensional stereoscopic image by displaying a two-dimensional image by varying the luminance on a plurality of display surfaces at different depths as viewed from an observer. A display object is an object having a luminance lower than that of the surface serving as the background displayed on the surface serving as the background displayed at an arbitrary position in the three-dimensional space, Computer, First means for generating a first two-dimensional image in which the surface serving as the background with respect to the plurality of display surfaces is projected from an observer's gaze direction; The luminance of the first two-dimensional image generated by the first means is independently changed for each of the display surfaces, and the first two-dimensional image is displayed on each of the display surfaces, so that the surface serving as the background is arbitrarily selected in the two-dimensional space. Second means for marking at the position of, Third means for generating a second two-dimensional image of the plurality of display surfaces, the projection object being projected from the observer's line of sight; A computer having recorded thereon a program for functioning as a fourth means for displaying the second two-dimensional image on the respective display surfaces by making the luminance in the second two-dimensional image generated by the third means the same between the respective display surfaces. Readable record carrier. A computer-readable recording medium according to claim 25, wherein the luminance on the second two-dimensional image displayed on each display surface is zero. The image of claim 25, wherein the second two-dimensional image is a two-dimensional image whose luminance is controlled by a pixel value having a predetermined gray scale. And a pixel value of the second two-dimensional image displayed on each of the display surfaces is zero. A computer-readable recording medium having recorded thereon a program which functions as a three-dimensional display device for displaying three-dimensional stereoscopic images by displaying two-dimensional images on a plurality of transmissive display devices at different depths from a viewer. It is an object which has a brightness which is brighter than the brightness | luminance of the surface used as the background displayed on the surface used as a background displayed on arbitrary positions in a three-dimensional space, Computer, First means for generating a first two-dimensional image in which the surface serving as the background with respect to the display surfaces of the plurality of transmissive display devices is projected from an observer's gaze direction; Transmittance of the first two-dimensional image generated by the first means is changed independently for each of the transmissive display devices, thereby displaying the first two-dimensional image on the transmissive display device, and the surface serving as the background is a three-dimensional space. Second means for displaying at any position in the Third means for generating a second two-dimensional image of the display surfaces of the plurality of transmissive display apparatuses, the projection object being projected from a viewing direction of the observer; A program for causing the second two-dimensional image to function as the fourth means for displaying the second two-dimensional image on the respective transmissive display devices by making the transmittance in the second two-dimensional image generated by the third means the same between the respective transmissive display devices. Computer-readable recording media. 29. The computer-readable recording medium as claimed in claim 28, wherein the transmittance on the second two-dimensional image displayed on each transmissive display device is maximum. 29. The display device according to claim 28, wherein the second two-dimensional image is a two-dimensional image whose transmittance in the transmissive display device is controlled by a pixel value having a predetermined gray scale. And a pixel value of the second two-dimensional image displayed on each of the transmissive display devices is a value indicating a maximum transmittance. The display object according to any one of claims 25 to 30, wherein the display object is character information, and a surface serving as the background is a background of a screen for inputting or editing character information. The second means differs between a surface serving as a background of a row behind a row where a cursor indicating an input or editing position of character information exists and a surface serving as a background of a row where the cursor is present and a row before that. A computer-readable recording medium having recorded thereon a program, characterized by displaying at a depth position. The display object according to any one of claims 25 to 30, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. The second means has a different depth between the surface on which the cursor indicating the input or editing position of the character information exists and the surface which is the background of the row after it, and the surface that is the background of the row before the row where the cursor is present. A computer-readable recording medium having recorded thereon a program characterized in that it is displayed at a location. 32. The display device according to claim 31, wherein the second means displays a button or mark for displaying a menu indicating a function of inputting or editing character information on a stepped portion between two background surfaces displayed at different depth positions. A computer-readable recording medium having recorded thereon a program. The display object according to any one of claims 25 to 30, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. And said second means displays the surface serving as the background of the selected character information portion and the surface serving as the background of the other character information at different depth positions. The display object according to any one of claims 25 to 30, wherein the display object is character information, The surface serving as the background is a background of a screen for inputting or editing character information. The second means is a computer-readable recording recording a program characterized in that the surface serving as the background of the character information portion searched by the search function and the surface serving as the background of other character information are displayed at different depth positions. media. The display object according to any one of claims 25 to 30, wherein the display object is character information, The surface serving as the background is a background of a table or a menu in which character information is displayed arranged side by side and a selection of character information in a batch is possible. And said second means displays the surface serving as the background of the selected character information portion and the surface serving as the background of the other character information at different depth positions. A two-dimensional image generating method performed by a two-dimensional image output apparatus for displaying two-dimensional images on a plurality of display surfaces at different depth positions viewed from an observer by changing luminance and displaying them as three-dimensional three-dimensional images, A two-dimensional image calculation step of calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; A luminance value determination step of determining whether or not the luminance value of the display object is equal to or less than a predetermined threshold and the luminance value of the display object is smaller than the luminance value of the background; When it is determined that the luminance value of the display object is equal to or less than a predetermined threshold and that the luminance value of the display object is smaller than the luminance value of the background, the luminance value on each two-dimensional surface of the background is displayed so that the background is displayed at the depth position of the display object. And a luminance value calculating step of calculating in accordance with the information and setting luminance values on each two-dimensional object of the display object to be equal to each other between the display surfaces of the plurality of display surfaces. A two-dimensional image generating method performed by a two-dimensional image output apparatus for displaying two-dimensional images on a plurality of display surfaces at different depth positions viewed from an observer by changing luminance and displaying them as three-dimensional three-dimensional images, A two-dimensional image calculation step of calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; A luminance value determination step of determining whether or not the luminance value of the display object is equal to or less than a predetermined threshold value; When the luminance value of the display object is less than or equal to the predetermined threshold, each two-dimensional of the background is changed so that the luminance value of the background is changed to a value larger than the luminance value of the display object, and the background is displayed at the depth position of the display object based on the changed luminance value. And a luminance value calculating step of calculating the luminance value of the image according to the depth information of the display object and setting the luminance value of each two-dimensional image of the display object to be the same value between each display surface of the plurality of display surfaces. As a two-dimensional image generating method performed by a two-dimensional image output apparatus for displaying two-dimensional images by varying transmittances on a plurality of display surfaces at different depth positions viewed from an observer, and displaying them as three-dimensional three-dimensional images, A two-dimensional image calculation step of calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; A luminance value judging step of judging whether or not the luminance value of the display object is greater than or equal to a predetermined threshold and the luminance value of the display object is larger than the luminance value of the background; In the case where it is determined that the luminance value of the display object is greater than or equal to a predetermined threshold and the luminance value of the display object is larger than the luminance value of the background, the depth of the display object in each two-dimensional transmittance value of the display object so that the background is displayed at the depth position of the display object. And a transmittance value calculation step of calculating in accordance with the information and setting transmittance values on each two-dimensional display object to be equal to each other between the display surfaces of the plurality of display surfaces. As a two-dimensional image generating method performed by a two-dimensional image output apparatus for displaying two-dimensional images by varying transmittances on a plurality of display surfaces at different depth positions viewed from an observer, and displaying them as three-dimensional three-dimensional images, A two-dimensional image calculation step of calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; A luminance value determination step of determining whether the luminance value of the display object is equal to or greater than a predetermined threshold value; When the luminance value of the display object is greater than or equal to a predetermined threshold, each two-dimensional of the background is changed so that the luminance value of the background is smaller than the luminance value of the display object, and the background is displayed at the depth position of the display object based on the changed luminance value. And a transmittance value calculating step of calculating the transmittance value of the image according to the depth information of the display object and setting the transmittance value of each two-dimensional image of the display object to be the same value between each display surface of the plurality of display surfaces. As a two-dimensional image output device for displaying two-dimensional images by varying the luminance on a plurality of display surfaces at different depth positions as viewed from the viewer, and displaying them as three-dimensional stereoscopic images, Two-dimensional image calculation means for calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; Brightness determining means for comparing the brightness value of the display object with another brightness value; And luminance value calculating means for calculating luminance values of the two-dimensional images of the display object and the background from depth information of the two-dimensional image and the display object and the background calculated by the two-dimensional calculation means, In the case where the luminance determination means determines that the luminance value of the display object is equal to or less than a predetermined threshold and that the luminance value of the display object is smaller than the luminance value of the background, the luminance value calculating means determines that the background is at the depth position of the display object. The luminance value of each two-dimensional image of the background is calculated according to the depth information of the display object so as to be displayed, A two-dimensional image output device characterized in that the luminance value on each two-dimensional object of the display object is the same value between each display surface of the plurality of display surfaces. As a two-dimensional image output device for displaying two-dimensional images by varying the luminance on a plurality of display surfaces at different depth positions as viewed from the viewer, and displaying them as three-dimensional stereoscopic images, Two-dimensional image calculation means for calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; Brightness determining means for comparing the brightness value of the display object with another brightness value; And luminance value calculating means for calculating luminance values of the two-dimensional images of the display object and the background from depth information of the two-dimensional image and the display object and the background calculated by the two-dimensional calculation means, When it is determined by the brightness determining means that the brightness value of the display object is equal to or less than a predetermined threshold value, the brightness value calculating means changes the brightness value of the background to a value larger than the brightness value of the display object and based on the changed brightness value. The luminance value on each two-dimensional image of the background is calculated according to the depth information of the display object so that the background is displayed at the depth position of the display object, and the luminance value on each two-dimensional image of the display object is the same value between the display surfaces of the plurality of display surfaces. A two-dimensional image output device characterized in that. As a two-dimensional image output device for displaying two-dimensional images on a plurality of transmissive display devices located at different depths from the viewer, and displaying them as three-dimensional stereoscopic images, Two-dimensional image calculating means for calculating a two-dimensional image corresponding to the display surface of each transmissive display device of the display object and the background from the image information of the display object and the background; Brightness determining means for comparing the brightness value of the display object with another brightness value; And transmittance value calculation means for calculating the transmittance values of the two-dimensional images of the display object and the background from the two-dimensional images calculated by the two-dimensional calculation means and the depth information of the display object and the background. In the case where it is determined by the luminance determining means that the luminance value of the display object is greater than or equal to a predetermined threshold and that the luminance value of the display object is larger than the luminance value of the background, the transmittance value calculating means determines that the background is at the depth position of the display object. A two-dimensional image output device characterized by calculating the transmittance value on each two-dimensional background of the display object in accordance with the depth information of the display object so as to be displayed, and setting the transmittance value on each two-dimensional object on the display object to be the same value between each display surface of the plurality of display surfaces. . A two-dimensional image output device for displaying two-dimensional images on a plurality of transmissive display devices located at different depths as viewed from an observer, and displaying them as three-dimensional stereoscopic images, Two-dimensional image calculating means for calculating a two-dimensional image corresponding to the display surface of each transmissive display device of the display object and the background from the image information of the display object and the background; Brightness determining means for comparing the brightness value of the display object with another brightness value; And transmittance value calculation means for calculating the transmittance values of the two-dimensional images of the display object and the background from the two-dimensional images calculated by the two-dimensional calculation means and the depth information of the display object and the background. When it is determined by the brightness determining means that the brightness value of the display object is equal to or greater than a predetermined threshold value, the transmittance value calculating means changes the brightness value of the background to a value smaller than the brightness value of the display object, and based on the changed brightness value The transmittance value on each two-dimensional surface of the display object is calculated according to the depth information of the display object so that the background is displayed at the depth position of the display object, and the transmittance value on each two-dimensional surface of the display object is equal to each other between the display surfaces of the plurality of display surfaces. A two-dimensional image output device characterized in that. A computer-readable recording which records a program for displaying a two-dimensional image by varying the luminance on a plurality of display surfaces at different depth positions as viewed from an observer, and functioning as a two-dimensional image output device for displaying as a three-dimensional stereoscopic image. As a medium, Computer, Two-dimensional image calculation means for calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; Luminance determination means for comparing the luminance value of the display object with another luminance value, Computer-readable recording that records a program for functioning as luminance value calculating means for calculating luminance values of each two-dimensional image of the display object and the background from the two-dimensional image calculated by the two-dimensional calculating means and the depth information of the display object and the background. Medium, In the case where the luminance determination means determines that the luminance value of the display object is equal to or less than a predetermined threshold and that the luminance value of the display object is smaller than the luminance value of the background, the luminance value calculating means determines that the background is at the depth position of the display object. The computer which recorded the program characterized by calculating the brightness value of each two-dimensional image of a background so that it may be displayed according to the depth information of a display object, and setting the brightness value of each two-dimensional object of a display object to the same value between each display surface of a some display surface. Recordable media that can be read by A computer-readable recording which records a program for displaying a two-dimensional image by varying the luminance on a plurality of display surfaces at different depth positions as viewed from an observer, and functioning as a two-dimensional image output device for displaying as a three-dimensional stereoscopic image. As a medium, Computer, Two-dimensional image calculation means for calculating a two-dimensional image corresponding to each display surface of the display object and the background from the image information of the display object and the background; Luminance determination means for comparing the luminance value of the display object with another luminance value, Computer-readable recording that records a program for functioning as luminance value calculating means for calculating luminance values of each two-dimensional image of the display object and the background from the two-dimensional image calculated by the two-dimensional calculating means and the depth information of the display object and the background. Medium, When it is determined by the brightness determining means that the brightness value of the display object is equal to or less than a predetermined threshold value, the brightness value calculating means changes the brightness value of the background to a value larger than the brightness value of the display object and based on the changed brightness value. The luminance value on each two-dimensional image of the background is calculated according to the depth information of the display object so that the background is displayed at the depth position of the display object, and the luminance value on each two-dimensional image of the display object is the same value between the display surfaces of the plurality of display surfaces. A computer-readable recording medium recording a program, characterized in that the. A computer-readable recording medium having recorded thereon a program for displaying a two-dimensional image on a plurality of transmissive display devices located at different depths from a viewer and functioning as a two-dimensional image output device for displaying as a three-dimensional three-dimensional image. Computer, Two-dimensional image calculation means for calculating a two-dimensional image corresponding to the display surface of each transmission type display device of the display object and the background from the image information of the display object and the background; Luminance determination means for comparing the luminance value of the display object with another luminance value, Computer-readable recording that records a program for functioning as a transmittance value calculating means for calculating the transmittance values on each two-dimensional image of the display object and the background from the depth information of the two-dimensional image and the display object and the background calculated by the two-dimensional calculation means. Medium, In the case where it is determined by the luminance determining means that the luminance value of the display object is greater than or equal to a predetermined threshold and that the luminance value of the display object is larger than the luminance value of the background, the transmittance value calculating means determines that the background is at the depth position of the display object. The computer which recorded the program characterized by calculating the transmittance | permeability value on each two-dimensional background of a display object so that it may be displayed, and setting the transmittance | permeability value on each two-dimensional object of a display object to be the same value between each display surface of a some display surface. Recordable media that can be read by A computer-readable recording medium having recorded thereon a program for displaying a two-dimensional image on a plurality of transmissive display devices located at different depths from a viewer and functioning as a two-dimensional image output device for displaying as a three-dimensional three-dimensional image. Computer, Two-dimensional image calculation means for calculating a two-dimensional image corresponding to the display surface of each transmission type display device of the display object and the background from the image information of the display object and the background; Luminance determination means for comparing the luminance value of the display object with another luminance value, Computer-readable recording that records a program for functioning as a transmittance value calculating means for calculating the transmittance values on each two-dimensional image of the display object and the background from the depth information of the two-dimensional image and the display object and the background calculated by the two-dimensional calculation means. Medium, When it is determined by the luminance determining means that the luminance value of the display object is equal to or greater than a predetermined threshold value, the transmittance value calculating means changes the luminance value of the background to a value smaller than the luminance value of the display object and based on the changed luminance value. Thus, the transmittance values on each two-dimensional surface of the display object are calculated according to the depth information of the display object so that the background is displayed at the depth position of the display object, and the transmittance values on each two-dimensional surface of the display object are equal to each other between the display surfaces of the plurality of display surfaces. A computer-readable recording medium recording a program, characterized in that the. 9. A button or mark for displaying a menu indicating a function of inputting or editing character information is displayed on a step portion between two background surfaces displayed at different depth positions. 3D display method. 21. The method according to claim 20, wherein the second means is further configured to display a button or mark for displaying a menu indicating a function of inputting or editing character information on a step portion between two background surfaces displayed at different depth positions. Three-dimensional display device characterized in that. 33. The display apparatus according to claim 32, wherein said second means displays a button or mark for displaying a menu indicating a function of inputting or editing character information on a stepped portion between two background surfaces displayed at different depth positions. A computer-readable recording medium having recorded thereon a program.

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