JPH077747A - Stereoscopic display system - Google Patents

Abstract

PURPOSE:To obtain a stereoscopic display system capable of displaying a 3-dimension motion picture in which a generated color from an object is observed while keeping a natural light. CONSTITUTION:A lens 10 formed by arranging plural nearly semi-cylindrical convex lenses 12 side by side is mounted on a dry plate 8 of a camera 4. The plural cameras are arranged on a same plane so that an image of an optional point (m) of an object 2 is always formed to a predetermined point m' on the dry plate of the camera. Then a data processing unit 14 synthesizes instantaneous picture data picked up from the object by each camera simultaneously into one picture data and a data output device 16 provides picture data obtained continuously in response to a motion of the object to a liquid crystal display device 18. A lens formed to the same shape as the lens 10 is provided to the display device and a stereoscopic motion picture is observed via the lens.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic display system for displaying a three-dimensional moving image.

[0002]

2. Description of the Related Art Conventionally, as a display device for displaying a still image or a moving image two-dimensionally, a liquid crystal display device or a display device using a cathode ray tube is known. Liquid crystal display devices are used as displays for word processors, personal computers and the like, and in recent years, beautiful color displays with significantly improved image quality are becoming the mainstream. In addition, a display device using a cathode ray tube has come to be able to obtain high quality and realistic images such as the adoption of a high definition television with a large screen and high definition.

In recent years, higher quality and more realistic images have been desired, and there is a demand for displaying images with a stereoscopic effect. In the conventional display devices, the display data supplied to the device has been demanded. The structure of the data (image data) and the display screen is two-dimensional, and a display device for three-dimensionally displaying an image is not known.

Generally, as a method of displaying a three-dimensional moving image, two images photographed from different positions on the right and left sides are overprinted by using two color inks, that is, red ink and blue ink, and printed. There is known a method of viewing a printed image by wearing glasses provided with red and blue filters on the left and right respectively. In this way, by viewing the different images at the same time with the left and right eyes, the images can be viewed in a three-dimensional manner. In addition, as in a stereoscopic movie, two images shot from different positions on the left and right are different from each other.
A method is known in which two screens are projected on a screen through two polarizing lenses, and two different polarizing lenses are mounted on glasses attached to the left and right eyes to view an image. Also in this case, a stereoscopic image can be viewed as in the above case.

[0005]

The stereoscopic image obtained by the above method has the inconvenience that it cannot be viewed stereoscopically unless special glasses adapted to the display form of the image are worn. In addition, when a stereoscopic image is captured using a deflection lens with a specific color and the stereoscopic image is observed by wearing glasses equipped with the same deflection lens as this deflection lens, the color developed by the subject is changed. There is a problem that natural light cannot be observed.

The present invention has been made in view of the above points, and an object thereof is to provide a stereoscopic display system capable of observing the color development from a subject as natural light and displaying a three-dimensional moving image. .

[0007]

According to the present invention, the light from the subject corresponding to the incident angle of the light is divided into a plurality of regions and condensed on the surface for receiving the light from the subject. A display including a plurality of cameras having a first lens for forming an image of a subject corresponding to each of the regions and a second lens having the same structure as the first lens on the display screen. And a combining means for combining a plurality of image data corresponding to the number of cameras obtained by simultaneously photographing the subject with the plurality of cameras into one image data, and the combining means. A three-dimensional display characterized in that a plurality of image data are prepared with time according to the continuous movement of the subject, and the image data is continuously supplied to the display device. A system is provided.

[0008]

On the light receiving surface of the camera, the light from the subject incident at a predetermined incident angle is divided into a plurality of regions and condensed to form an image of the subject corresponding to each region on the light receiving face. First of
The second lens having the same structure as the second lens is also provided on the display screen of the display.

A plurality of cameras having the first lens are arranged so that their light-receiving surfaces are aligned in the same plane, and are arranged so as to face the subject at different angles. The image data taken by each camera is combined into one image data by the combining means and sent to the supplying means. The supply means prepares a plurality of continuous image data associated with the movement of the subject over time and supplies the continuous image data to the display. The image data supplied to the display is displayed on the display screen and visually observed by the user via the second lens. Therefore, the user
Can observe a three-dimensional moving image. Further, it is desirable that the width of the region is an integral multiple of one pixel pitch of the display screen of the display.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A stereoscopic display system according to embodiments of the present invention will be described in detail below with reference to the drawings. First, a method of stereoscopically displaying the stationary subject 2 will be described.

As shown in FIG. 1, the camera 4 is mounted on a dolly (not shown) and is arranged to face the subject 2 so as to be movable in the direction of arrow X in the figure. A first lens, which will be described later, is attached on the dry plate 8 serving as the light receiving surface of the camera 4. Further, between the subject 2 and the dry plate 8, an image of an arbitrary point m on the subject 2 is linked with the movement of the dry plate 8 so that an image is always formed at a predetermined point m ′ on the dry plate 8. A lens 5 is provided.

As shown in FIG. 2, the first lens 10 is
It is formed in a rectangular plate shape, and on one surface thereof, a large number of substantially semi-cylindrical convex portions are formed in parallel and adjacent to each other. A large number of convex lenses 12 are formed by these convex portions. The convex lens 12 condenses the light incident on the first lens 10 into a plurality of areas divided in the width direction of the convex lens 12, and provides a plurality of condensing points on the dry plate 8 of the camera 4.

As shown in FIG. 3, the light from the subject 2 which is incident on the dry plate 8 through the first lens 10 is condensed at a plurality of different points on the dry plate 8 according to the incident angle.
That is, as shown in FIG. 3A, the light is emitted from the first lens 1
When incident from 0 in the direction A, that is, the dry plate 8 is shown in FIG.
In the position P in, the incident light is condensed for each area corresponding to the width of the plurality of convex lenses 12 of the first lens 10, and the image of the subject corresponding to each area is predetermined on the dry plate 8. Are imaged at a plurality of points a in FIG. And
A plurality of striped patterns corresponding to the number of the above areas are formed on the dry plate 8. On the other hand, as shown in FIG. 3B, when light is incident on the first lens 10 from the B direction, that is, the dry plate 8
1 at the position Q in FIG. 1, the image of the subject is similarly formed at the point b on the dry plate 8 to form a plurality of striped patterns on the dry plate 8.

Therefore, the dry plate 8 is moved in the direction of the arrow X in the figure at a constant speed to gradually change the incident direction of the light incident on the camera 4 from the subject 2 from the A direction to the B direction, thereby forming an image of the subject 2. By forming an image on the dry plate 8, a continuous striped pattern corresponding to the incident angle of light is formed on the dry plate 8.

The image thus formed on the dry plate 8 is
By looking through the second lens 11 having the same structure as the first lens 10 used for image formation, the user can see
The image can be viewed as a three-dimensional image. That is, the user places the second lens 11 on the image and observes the image so that the eyes of the user face each other so that the eyes of the user are located in a plane orthogonal to the axis of the convex lens 12. To do.
Then, the images formed on the left and right eyes of the user are slightly deviated. Then, the left and right eyes observe different images that are slightly deviated. Therefore, the user can observe the substantially same image as when observing the subject from the slightly different angles with the left and right eyes, and can observe the image stereoscopically. still,
An image of an arbitrary point m on the subject 2 is a predetermined point m on the dry plate 8.
Since the image is formed at ′, the point m always looks as if it is in front of the subject 2. Further, the images of the other points n on the subject 2 are respectively formed on the points n ′ on the dry plate 8.

In the above-mentioned stereoscopic image display method, it is necessary to move the camera 4 at a constant speed for a certain distance in order to create one stereoscopic image. Therefore, the moving subject 2
It is difficult to capture a plurality of continuous stereoscopic images accompanying the movement of the subject 2 at each moment in order to display the stereoscopic video (moving image), and it is difficult to stereoscopically display the moving image by this method. Is.

Next, a method of stereoscopically displaying the moving subject 2 will be described. As shown in FIG. 4, the stereoscopic display system 1 includes a plurality of cameras 4 that capture an object 2 that moves with time. Each of these cameras 4 is provided with the above-mentioned first lens 10 on the dry plate 8 and is two-dimensionally arranged facing the subject 2 so that the dry plate 8 is aligned in the same plane. A lens 5 for constantly forming an image of an arbitrary point m of the subject 2 at a predetermined point m ′ on the dry plate 8 is movably arranged between each camera 4 and the subject 2.

The output side of each camera 4 is connected to a data processing device 14 as a synthesizing means for synthesizing the image data photographed by each camera 4 into one data, for data processing. A data output device 16 as a supply means is connected to the output side of the device 14. The data output device 16 prepares a plurality of combined image data as the subject 2 moves, and continuously supplies the image data to a liquid crystal display 18 as a display. A recording device 17 is attached to the output side of the data output device 16 so that a moving image taken by the camera 4 can be recorded. Liquid crystal display 1
A second lens 11 having the same structure as the first lens 10 is provided on the display screen 8.

The width a of each convex lens 12 of the first and second lenses 10 and 11 provided in the camera 4 and the liquid crystal display 18 is formed to be an integral multiple of one pixel pitch of the liquid crystal display 18. The width a is formed as small as possible so that the screen does not feel uncomfortable when a stereoscopic image is displayed.

In order to display a stereoscopic image with high accuracy, it is preferable that the pixels of the liquid crystal display 18 have high definition and the width of each pixel is narrow. Generally, when displaying a moving image, an instantaneous image of the subject 2 is continuously captured as the subject 2 moves, and the captured images are continuously displayed. Therefore, when displaying a moving image three-dimensionally, one camera 4 is used as in the case where the still subject 2 is photographed as described above.
It is impossible to move one to obtain one image data. Therefore, the stereoscopic display system 1 of the present invention includes a plurality of cameras 4 in the same plane, and the subject 2 is viewed from different directions.
Are being photographed at the same time. In particular, when the camera 4 having the first lens 10 is used for photographing, the first lens 1
A plurality of cameras 4 are arranged in a straight line in the width direction of 0. Also in this case, as in the case of capturing a still image, the camera 4 and the camera 4 are arranged so that the image of the arbitrary point m of the subject 2 is always formed at the point m ′ at the same position on the dry plate 8 of each camera 4. It goes without saying that the lens 6 is arranged and the second lens 11 having the same structure is mounted on the deck 8 of each camera 4.

The plurality of cameras 4 facing the moving subject 2 simultaneously photograph the movement of the subject 2 at different moments from different angles. The instantaneous image data of the subject 2 captured by each camera 4 at the same time is stored in the data processing device 1
At 4, the image data is combined into one image data and sent to the data output device 16. The data output device 16 prepares a plurality of combined instantaneous image data according to the movement of the subject 2 and continuously outputs them to the liquid crystal display 18 as a continuous moving image signal.

As shown in FIG. 5, the liquid crystal display panel 20,
The liquid crystal display 18 including the sidelight 22 and the sidelight 22 includes a second lens 11 having the same structure as the first lens 10 attached to the camera 4. This liquid crystal display 1
The moving image displayed at 8 is observed by the user as a three-dimensional moving image by observing through the second lens 11. That is, since the moving image signal supplied from the data output device 16 to the liquid crystal display 18 is created based on the image taken through the first lens 10,
Is processed as a stereoscopic image only in the width direction of the lens 10. Therefore, the user can use the second lens 11
By observing the image facing the liquid crystal display 18 so that the left and right eyes are located in a plane orthogonal to the axis of, the image can be stereoscopically observed. However, since the stereoscopic image is not processed in the axial direction of the second lens 11, the user positions the left and right eyes in a plane substantially parallel to the axis of the second lens 11 and the liquid crystal display. When facing the display 18, the image cannot be stereoscopically observed.

Further, as shown in FIG. 6, when a display device having a cathode ray tube 26 such as the television 24 is used, the second lens 11 is mounted on the display screen of the television 24. .

When the first and second lenses 10 and 11 as described above are used in the stereoscopic display system 1 of the present application,
The viewing angle range in which an image can be stereoscopically viewed is limited only in the width direction of the lens. Therefore, in order to further widen the viewing angle range in which stereoscopic viewing is possible, the first and second lenses 10 and 11 are configured as shown in FIGS. 7 and 8.

According to the second embodiment shown in FIG. 7, the first and second lenses 10 and 11 are formed in a rectangular shape, and a plurality of substantially hemispherical convex portions are arranged vertically and horizontally on one surface. Is formed. A plurality of convex lenses 32 are formed by these convex portions.
Is configured. As shown in FIG. 9, the width b of the convex lens 32 is formed to be an integral multiple of one pixel pitch e of the liquid crystal display 18, and is as small as possible so as not to cause a discomfort on the screen during stereoscopic display. Has been formed.

When the subject 2 is photographed by using the camera 4 having the first lens 10 thus formed,
A plurality of cameras 4 are aligned vertically and horizontally on the same plane facing the subject 2, and the instantaneous movement of the subject 2 is simultaneously photographed.
The image data taken by each camera 4 at a certain moment is the data processing device 14 and the data output device 16.
And is supplied to the liquid crystal display 18 as a continuous moving image signal. The liquid crystal display 18 includes a second lens 11 having the same structure as the first lens 10 included in the camera 4, and the user can display a display screen via the second lens 11. You can see a stereoscopic video by watching it. Further, the viewing angle range in which stereoscopic viewing is possible in this case is not limited to only the width direction of the lens (one direction) as in the case of mounting the second lens 11 according to the first embodiment described above. , Spread in multiple directions.

According to the third embodiment shown in FIG. 8, the first and second lenses 10 and 11 are formed in a rectangular shape, and an elliptical sphere is bisected on one surface along the major axis. Are formed to be aligned vertically and horizontally. A plurality of convex lenses 42 are formed by these convex portions. Convex lens 4
The major axis c and the minor axis d of 2 are one pixel pitch e of the liquid crystal display.
It is formed to be an integral multiple of, and is formed as small as possible so as not to cause a discomfort on the screen during stereoscopic display.

Using the stereoscopic display system 1 having the first and second lenses 10 and 11 formed in this way, a stereoscopic viewable visual angle range is displayed when a stereoscopic moving image is displayed in the same manner as above. It was As a result, the viewing angle range is relatively long axis c.
It widens in the direction (lateral direction) and narrows in the minor axis d direction (longitudinal direction).

As described above, the camera 4 and the liquid crystal display 1
By changing the shapes of the first and second lenses 10 and 11 mounted on the lens 8, the range of viewing angles that can be stereoscopically viewed can be variously changed. That is, the lens has a stereoscopic viewing angle range due to the shape of each convex lens 12, and this viewing angle range is the focal point of the lens with respect to light incident from a predetermined direction in which an image can be stereoscopically viewed. It is determined that the desired image is formed at the position. The present invention is not limited to the above-described embodiments, and can be variously modified without changing the gist of the invention.

[0030]

As described above, according to the stereoscopic display system of the present invention, a three-dimensional moving image can be observed, and the light emitted from the subject can be observed as natural light by directly observing the display screen. There is provided a stereoscopic display system capable of doing.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a stereoscopic display system that stereoscopically displays a still image.

FIG. 2 is a front view showing first and second lenses according to the first embodiment mounted on the stereoscopic display system of FIG.

FIG. 3 (A) is a diagram showing how the light incident on the camera is imaged on the deck when the camera is located at point P in FIG. 1. FIG. 3 (B) shows that the camera in FIG.
The figure which shows a mode that the light which injects into a camera when it is located in a point is imaged on the deck.

FIG. 4 is a schematic diagram showing a stereoscopic display system for moving images according to an embodiment of the present invention.

5 is a cross-sectional view showing a liquid crystal display provided with the first lens of FIG.

FIG. 6 is a cross-sectional view showing a television including the first lens of FIG.

FIG. 7 is a front view showing first and second lenses according to a second embodiment.

FIG. 8 is a front view showing first and second lenses according to a third embodiment.

9 is a front view partially showing a display screen when the lens of FIG. 7 is mounted on a liquid crystal display.

[Explanation of symbols]

1 ... Stereoscopic display system, 2 ... Subject, 4 ... Camera, 5,
6 ... Lens, 8 ... Dry plate, 10 ... First lens, 11 ... Second lens, 12 ... Convex lens, 14 ... Data processing device,
16 ... Data output device, 18 ... Liquid crystal display

Claims (3)

[Claims] 1. A plurality of cameras each having a light-receiving surface and a first lens for focusing light from a subject on a plurality of regions on the light-receiving surface to form an image, and a plurality of cameras on a display screen. A display provided with a second lens having the same structure as the first lens, and a plurality of image data corresponding to the number of cameras obtained by simultaneously photographing the subject with the plurality of cameras. A plurality of synthesizing means for synthesizing one image data and a plurality of image data synthesized by the synthesizing means are prepared with time according to the continuous movement of the subject, and the image data is displayed on the above-mentioned display. A stereoscopic display system comprising: a supply means for continuously supplying the container. 2. The stereoscopic display system according to claim 1, wherein the width of the area is an integral multiple of one pixel pitch of the display. 3. The stereoscopic display system according to claim 1, wherein the plurality of cameras are arranged such that the light receiving surfaces of the cameras are aligned in the same plane.