JPH02205837A - System and device for reproducing stereoscopic picture, and its viewing method - Google Patents

Abstract

PURPOSE:To obtain a practical stereoscopic picture from a simple device by combining a pair of upper and lower pictures for the right and left eyes and prism glasses composing pictures for both eyes. CONSTITUTION:A set of right an left eye pictures 1 is composed as follows: right and left eye pictures are recorded by two cameras spaced with a distance between both eyes and they are arranged vertically so as to view as one set 1. By removing the apparent dislocation of both pictures with the prism glasses 2 for composing right and left eye pictures, they look like one picture. Simultaneously a not shown part in both refraction prisms is covered by a light shielding part, so that both eye pictures alone can be seen in the intersection of the sight line of both eyes. Consequently, the superposed duplicated pictures provide a stereoscopic feeling because of the difference in an angle (convergence).

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention provides a method for reproducing recorded images such as photographs, movie films, hemi-films, and video films. This field relates to methods for making stereoscopic images appear, devices used therefor, and methods for viewing stereoscopic photographic images.

``Prior Art'' The reason why people see things three-dimensionally is because there is binocular parallax (a difference between the images captured by the right and left eyes), which are combined in the brain. Various attempts have been made to create the principle of binocular parallax by combining two-dimensional images and prism glasses to make originally two-dimensional screens and images appear three-dimensional. For example, first, a left-eye image photograph and a left-eye image photograph taken with two cameras separated by the distance between the two eyes are placed side by side, and these images are captured using a stereopure camera using a prism lens or the like. Second, in the case of photographic prints, two projectors are used and polarizing filters are installed on the left and right lenses to prevent the images of the two photographic prints from intermingling.
There is a method (Figure 8) in which the polarization angles are set 90 degrees apart from each other and projected.The third method is to use a stereo silver screen so as not to lose its polarization properties, and to provides a three-dimensional effect when viewed through stereo polarized glasses. This method is currently used in three-dimensional movies. The fourth method is to project a movie using a blue filter for the left eye image and a red filter for the right eye image, and watch the movie while wearing glasses with the blue filter attached to the right eye and the red filter attached to the right eye. There are also ways to obtain a three-dimensional effect. Fifth, recently, what is called 3D television is that the left eye image and the right eye image are projected alternately on a TV set, so that when the left eye image is displayed, it is invisible to the right eye, and the right eye image For example, as shown in Figure 9, the screen displays a left eye image and a right eye image at equal intervals. A system in which the grid borders are arranged alternately along vertical boundaries, and if the size and position of the lattice stripes are chosen appropriately, the image for the opposite eye can be blocked, and a cylindrical lens as shown in Figure 10. This method uses a collection of lenticular plates (lenticular plates) in place of the lattice stripes.

Furthermore, in the case of a television, two picture tubes are placed as shown in FIG. 8, and the images passed through a polarizing filter are superimposed using a half mirror.

``Problems to be solved by inventions'' As mentioned above, creating a system for viewing and reproducing images such as photographs, movies, and television images with a three-dimensional effect is a dream of many people, and various inventions have been made. , has been devised. Although some of these have been put into practical use in movies and videos, they each have their own advantages and disadvantages, and they are not widely used.

In other words, in the first Stereopure method of stereoscopic photo viewing, two photos placed side by side are magnified through a lens, so the size is limited to about 6 cm, which corresponds to the stereo base. It is. In the case of larger enlarged prints, the left and right back-printed prints are placed facing each other, mounted on both sides, and Lightstone's stereo system is used, which uses mirror reflection to view from right angles. The device was complicated and its operation was troublesome. Further, when using a pure lens, the maximum magnification is about 5 times, and if it is magnified more than that, the color of the lens will be severely blurred and curved, making it difficult to put it into practical use.

The second method also requires a lot of equipment, such as two projectors and polarizing filters, and it also takes up a lot of space and is difficult to operate, making it difficult to put into practical use.

In addition, since the S third method uses a polarizing filter, the loss of light and the loss of polarization due to reflection from the screen overlap, resulting in a brightness that is about 115th compared to a regular movie, and the three-dimensional effect is very weak. There are drawbacks.

The fourth method uses blue and red filters, which makes the screen very dark and has the disadvantage that colors cannot be reproduced. Furthermore, in the fifth method, since the image is switched left and right, flicker inevitably occurs and it is difficult to see, and if the image is viewed for more than 30 minutes, eye fatigue increases rapidly.

The present invention solves the above-mentioned drawbacks, and provides a method, device, and viewing method that is simple in equipment and operation, provides bright images, eliminates eye fatigue due to flicker, and provides a three-dimensional effect. It's like a relative.

"Means for Solving the Problems" The present invention is configured as follows as a means for solving the above technical problems.

The first invention to be patented consists of an upper and lower combination image of left and right binocular images, and prism glasses for superimposing left and right binocular images. The upper and lower combined images of the left and right binocular images are 2
This image is a combination of a right-eye image and a left-eye image recorded using a camera mounted on a stand separated by the distance between the two eyes so that they can be viewed as a set of left and right images by arranging them vertically. The above-mentioned prism glasses for binocular image superimposition have a downward refraction prism lens in which one of the left and right eyes makes the upper image appear to descend by refraction of light, and the other has a downward refraction prism lens in which the lower image appears to rise by refraction of light. These glasses are made up of visible upward refracting prism lenses, and are adjusted so that when the combined image is viewed with these prism glasses on, the right eye image and left eye image overlap, and a double refracting prism lens is used. A light shielding section is provided in the non-image area. By viewing the combined image while wearing the prism glasses, the binocular image appears at the intersection of the lines of sight of both eyes,
This is a three-dimensional image reproduction method characterized by obtaining a three-dimensional effect by using the difference in angles.

The second invention for which a patent is sought is that the above-mentioned upper and lower combination image of left and right binocular images includes a first image that is configured so as to be visually recognized as a photograph, a television image, or a screen image.
This is a ``stereoscopic image reproduction method'' as described in the claims.

The third invention for which a patent is being sought is to visually recognize a right eye image and a left eye image recorded by two cameras separated by the distance between the eyes as a set of left and right eye images by arranging them vertically. The above-mentioned prism glasses for combining left and right binocular images are constructed so that one of the left and right eyes can lower the upper image by refraction of light. The other is a refractive prism lens, and the other is an upwardly refractive prism lens that makes the lower image appear to rise due to the refraction of light.When viewing the combined image with these prism glasses on, the right eye image 3D image reproduction in combination with prism glasses for binocular image merging, which are adjusted so that the left eye image and the left eye image appear as a urn, and a light shielding part is provided in the non-image area of the birefringent prism. It is a device.

The fourth invention for which a patent is sought is to arrange a left-eye image photograph and a left-eye image photograph taken by two cameras separated by the distance between the two eyes in the vertical direction, A photographic image is combined so that it can be visually recognized as an eye image, and one of the prism glasses corresponding to both the left and right eyes is a downward refraction prism lens that makes the upper image appear lower due to the refraction of light.
The other consists of an upward refraction prism lens that makes the lower image appear to rise due to the refraction of light, and when viewing the combined image while wearing these prism glasses, the right eye image and left eye image appear to overlap. Prepare prism glasses for binocular image superimposition, which are adjusted as follows, and are provided with a light-shielding part in the non-image part of the birefringent prism, and view the photographic image formed by the combination by wearing the prism glasses. This is a stereoscopic photographic image viewing method characterized in that a side-viewed silver image is seen where the line of sight of both eyes intersect, and a three-dimensional effect is obtained by the difference in angle.

"Function" The present invention has a combination structure in which a right eye image and a left eye image recorded by two cameras separated by the distance between the eyes are arranged vertically and can be visually recognized as a set of left and right binocular images. This image is then adjusted using prism glasses for binocular image merging so that the right and left images appear vertically shifted relative to each other. Make it visible. At the same time, the light-shielding portion closes off the non-image portion of the bi-refracting prism, so that only the side-view silver image can be seen where the lines of sight of both eyes intersect. As a result, the shaped double image is created due to the difference in angle.
You can get a three-dimensional effect.

"Example" The present invention will be explained in detail below based on illustrated embodiments.

The basic structure of the present invention consists of an upper and lower combined image of left and right binocular images, and prism glasses for superimposing left and right binocular images.

First, the vertical combination image of the left and right binocular images is obtained by visually recognizing a right eye image and a left eye image recorded by two cameras separated by the distance between the eyes as a set of left and right binocular images by arranging them in the vertical direction. This is an image that has been combined to obtain an image.

Specifically, as shown in Figure 1, a set of left and right binocular images l is created by dividing and arranging the left and right silver images vertically in one frame of book film. Either print it as is or project it on a screen as is. This is viewed through prism glasses 2 for superimposing left and right binocular images as shown in FIG. As shown in FIGS. 6 and 7, the left and right binocular image combining prism glasses 2 are configured such that one of the left and right eyes has a downward refraction prism lens 2a in which the upper image appears downward due to the refraction of light, and the other These glasses are composed of an upward refraction prism lens 2b that allows the lower image to be seen upward by the refraction of light. For example, if the left and right binocular images 2 of the set are arranged such that the right eye image is placed at the top and the left eye image is placed at the bottom, the downward refracting prism lens 2d is placed on the right eye side, and the upward refracting prism lens 2d is placed on the left eye side. Prism glasses 2 on which prism lenses 2b are arranged are used. - If the vertical positions of the left and right binocular images of the pair are reversed,
The right and left prism glasses 2 are also reversed. The prism glasses 2 are further adjusted so that when the combined image is seen by wearing the prism glasses, the right eye image and the left eye image appear to overlap, and the non-image portions of the birefringent prisms 2a and 2b That is, the light shielding section is provided at the upper part of the downward refraction prism lens 2a, and at the lower part of the upper refraction prism lens 2b.

Then, when looking at the combined image by wearing the prism glasses 2, the silver image seen through the downward refraction prism lens 2a is the actual object at the AC position as shown in FIG.
A virtual image appears to be at the BD position lower than this.

Furthermore, as shown in FIG. 7, the silver image viewed through the upward refraction prism lens 2b appears to be a virtual image, as if the actual object was located at the BD position and was located at the higher AC position. As a result, the superimposed BC portion appears as a place where the side-viewed silver image intersects the line of sight of both eyes, and a three-dimensional effect can be obtained due to the difference in angle at this superposed portion. Incidentally, due to the discomfort in the double-refracting prism, parts AB and CD, that is, the upper and lower end parts 3.4 in Fig. 4 are hidden from view, so that only part 5 of the stereoscopic image is visible to the viewer. .

The above embodiment is a stereoscopic image reproduction method for an image configured such that the left and right binocular images are vertically combined.If this is to be used as a television image, all that is required is to display the scene by dividing it into upper and lower parts. good.

To create the upper and lower combined image of the left and right binocular images 1, when photographing it with a monocular camera, attach a stereo adapter to the lens, divide the frame into 1/2 vertically,
The image of the right eye image may be recorded in the upper part, and the image of the left eye image may be recorded in the lower part.

Furthermore, when using two photographing machines, two films are made for each, one for the right eye image and one for the left eye image. The same applies to video tapes. The film thus produced is printed or projected so that, for example, the right eye image appears superimposed on the top and the left eye image appears on the bottom. - If the upper and lower combined images of the left and right binocular images are recorded on a book film, you can simply print it as is or project it on a single TV, but if you shoot with two films, the TV receiver Either they are projected on two screens, or they are combined electrically so that they are divided into upper and lower parts and projected on a single receiver. or,
If you want to view slide positive film on video, you can use a device such as a photo image video information converter to display it on a television receiver.

Recent high-definition television receivers have increased the number of scanning lines and have a horizontally elongated shape, so when the present invention is implemented, the stability is particularly good, the image quality is good, and the magnification is large and powerful. A certain three-dimensional image can be obtained.

Next, if we recognize the invention from the hard part of the claimed invention, then 2.
The upper and lower left and right eye images are constructed by combining the right eye image and left eye image, which are recorded with a camera on a stand separated by the distance between the eyes, so that they can be viewed as a set of left and right eye images by arranging them in the vertical direction. Combining images and the prism glasses for binocular image merging mentioned above have one of the left and right eyes having a downward refraction prism lens that makes the upper image look downward due to the refraction of light, and the other eye has a downward refraction prism lens that makes the lower image look downward due to the refraction of light. When viewing an image through glasses made up of upward refracting prism lenses that appear to rise due to refraction, the images are adjusted so that the right eye image and left eye image appear to overlap. This is a stereoscopic image reproducing device that is combined with prism glasses for binocular image superimposition, which are provided with a light shielding part.

Furthermore, extracting from the first invention about the stereoscopic image viewing method, a left eye image photograph and a left eye image photograph taken by two cameras separated by the distance between both eyes are arranged vertically side by side, - Photographic images that are combined and configured so that they can be visually recognized as left and right binocular images of a pair, and one of the prism glasses corresponding to the left and right eyes is a downward refraction prism lens that makes the upper image appear downward due to the refraction of light, and the other However, the lower image is made up of upward refracting prism lenses that appear to rise due to the refraction of light, and when viewing the combined image with these prism glasses, the right eye image and left eye image appear to overlap. By preparing prism glasses for binocular image superimposition, which are adjusted to the desired angle and having a light-shielding part provided in the non-image portion of the birefringent prism, and viewing the photographic image formed by the combination while wearing the prism glasses, ,
This is a method of viewing stereoscopic photographic images characterized in that a side-view silver image is seen where the lines of sight of both eyes intersect, and a three-dimensional effect is obtained by the difference in angle.

"Effects" As mentioned above, the stereoscopic image reproduction method of the present invention involves the combination of an upper and lower combination image of left and right binocular images and prism glasses for superimposing left and right binocular images, and the rest is done using existing film. The three-dimensional image reproducing apparatus is simple and easy to operate, since it is sufficient to prepare prism glasses for binocular image superimposition as an original instrument for the present invention.

Further, according to the present invention, by viewing the combined image by wearing prism glasses, the synoptic silver image is seen where the line of sight of both eyes intersect, and a three-dimensional effect is obtained due to the difference in angle. Unlike conventional systems, this system does not use polarizing plates to attenuate light or switch images, making it possible to reproduce and view high-quality stereoscopic images that are bright and free from eye fatigue caused by flickering. Ta.
In addition, the creation of images that combine the upper and lower left and right binocular images has become easier with the development of optical and electrical equipment, and is versatile in a wide range of fields including photography, negatives, positives, video, television, and movies. , has a variety of uses and potential for development.

Furthermore, since the present invention adopts a method of arranging images vertically, compared to the conventional case of arranging images horizontally, there are no restrictions due to stereo bases, etc., and the magnification ratio can be dramatically increased, making it possible to use a small device. Now it is possible to obtain practical 3D images.

2den *e411#-jm tele ed ( No. figure υ No. figure 1.Display of the incident Heisei 2. Name of the invention 1 year Patent application No. 26942 3. Person who makes corrections Relationship with the incident address Name Kumagai

Claims (4)

[Claims] (1) It consists of an upper and lower combined image of left and right binocular images, and prism glasses for overlapping left and right binocular images, and the above-mentioned upper and lower combined image of left and right binocular images was recorded using two cameras separated by the distance between the eyes. It is an image in which a right eye image and a left eye image are arranged in the vertical direction and are combined so that they can be visually recognized as a set of left and right binocular images. One of these is a downward refracting prism lens that makes the upper image appear to be lower due to the refraction of light, and the other is an upward refracting prism lens that makes the lower image appear to be upward due to the refraction of light.These prism glasses The prism glasses are adjusted so that the right eye image and the left eye image appear to overlap when the combined image is viewed by wearing the lens. By looking at the combined image with
A three-dimensional image reproduction method characterized by obtaining a three-dimensional effect by using this angle difference. (2) The upper and lower combined image of the left and right binocular images is a photograph;
The stereoscopic image reproduction method according to claim 1, which includes an image configured to be visually recognized as a television image or a screen image. (3) Right-eye and left-eye images recorded by two cameras separated by the distance between the eyes are arranged vertically and can be visually recognized as a set of left-right and left-eye images. The above-mentioned prism glasses for combining the upper and lower images of the eye image and the left and right binocular images are configured such that one of the left and right eyes is a downward refraction prism lens in which the upper image appears to be lowered due to the refraction of light, and the other is a lower refraction prism lens that These glasses are composed of upward refraction prism lenses that make the image appear to rise due to the refraction of light.
The prism glasses are adjusted so that the right eye image and left eye image appear to overlap when viewing the combined image while wearing the prism glasses. A stereoscopic image reproduction device that can be combined with prism glasses for binocular image superposition. (4) Place the right eye image and left eye image vertically side by side with two cameras separated by the distance between both eyes,
The photographic images are combined so that they can be visually recognized as a set of left and right binocular images, and one of the prism glasses corresponding to the left and right eyes is a downward refraction prism lens that makes the upper image appear downward due to the refraction of light, and the other is composed of upward refracting prism lenses that make the lower image appear to rise due to the refraction of light, so that when viewing the combined image while wearing these prism glasses, the right eye image and left eye image appear to overlap. By preparing prism glasses for binocular image superimposition, which are adjusted to the desired angle and having a light shielding part provided in the non-image portion of the birefringent prism, and viewing the photographic image formed by the combination while wearing the prism glasses, , a method for viewing stereoscopic photographic images characterized in that a binocular image is seen where the lines of sight of both eyes intersect, and a three-dimensional effect is obtained by the difference in angle.