JPH0965371A - Stereoscopic viewer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the stereoscopic viewer which three-dimensionally shows the scene which is seen by eyes of a reduced person assumping that this person is reduced. SOLUTION: The stereoscopic video camera device provided with a video camera 1 and a stereoscopic vision display means 12 for display of a picture for left eye and a picture for right eye is provided with moving means 2, 3, and 8, which move the video camera back and forth in the horizontal direction, and transmission control means 4 to 7 which receive the video signal from the video camera 1 and take one of video signals in two prescribed position within the reciprocation range of the video camera as the video signal for left eye and take the other as the video signal for right eye and transmit them to the stereoscopic vision display means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic device for displaying a video image from a video camera in a stereoscopic manner on a monitor. The present invention relates to a stereoscopic device for stereoscopically observing.

[0002]

2. Description of the Related Art When a building is to be newly built at a certain place, it is often performed in advance to simulate the effect on the landscape around it. A common method is to create a reduced model of a building and also create buildings and facilities around the building, such as roads, rivers, bridges, and parks, to reproduce the town centered on the building. . If you place a miniature model of a person or car in the reduced model,
You can feel the cityscape more concretely, such as the size of the building and the width of the road. Generally, a reduction ratio of such a model of building is about 1/180. This is because miniature cars and existing reduced models can be used.

In this way, by reproducing the town with the reduced model, it is possible to observe the townscape in a form close to reality, and to simulate changes in the townscape when a building or a bridge is constructed. be able to. At this time, by arranging a small video camera in the model town, it is possible to observe the scenery actually seen from the town on a monitor such as a TV screen. If the video camera placed in the model and the monitor that displays the image from the video camera are configured with a stereoscopic device, it is as if you were actually inside the model town. It becomes possible to observe the scenery of the city, and it is possible to feel more realistically the changes in the scenery of the town when new buildings and bridges are constructed.

As a conventional stereoscopic device, for example, a video camera for the right eye and a video camera for the left eye are arranged apart from each other by a predetermined distance, and images from different angles are observed with respect to an object to be observed. The respective video signals are obtained and displayed on a stereoscopic display device such as a head mounted display. By observing the display device, the observer can more realistically observe the object to be observed as if it were actually in front of the eyes.

[0005]

However, the smallest video camera currently in use is:
Since the diameter of the lens is 12 mm, the baseline length (the distance between the optical axis of the camera for the right eye and the optical axis of the camera for the left eye) is inevitable when two video cameras are arranged side by side. 1
It will be 2 mm or more. Since the town model as described above is often formed at a scale ratio of 1/180, it is 2 in order to observe the town of this reduction ratio more realistically.
It is necessary to match the optical axis interval of the lenses of the two cameras to the interval (eye width) of the human eyes that have been reduced corresponding to the reduced model. When a human eye width of usually about 60 mm is made to correspond to the reduced model, it is about 0.33 mm. Therefore, with a small video camera currently used, even if stereoscopic observation is possible, it is not actually observed with the eye width reduced at the same ratio, resulting in an unnatural image, which is completely unrealistic. It becomes a simulation without feeling. Naturally, in addition to the reduction ratio of 1/180, for example, when observing the arrangement of the interior of the room made of a model of 1/60, the conventional stereoscopic device causes a simulation without a sense of reality.

In view of the conventional problems as described above, the present invention provides a stereoscopic device capable of showing a three-dimensional view of the reduced human eyes when it is assumed that the human is reduced. The purpose is to

[0007]

In order to solve the above-mentioned object, the invention according to claim 1 of the present invention is such that a video camera (1) and a video signal from the video camera (1) are inputted, In a stereoscopic video camera device having a stereoscopic display means (12) for displaying an image for the left eye and an image for the right eye respectively, a moving means (2, 3 and 8) and the video signal from the video camera, one of the video signals at two predetermined positions within the reciprocating range of the video camera is used as the video signal for the left eye, and the other is used for the right eye. It is characterized in that it has transmission control means (4, 5, 6, 7) for transmitting to the stereoscopic display means as video signals for use respectively.

According to a second aspect of the present invention, the above-mentioned moving means comprises a base portion (3), a moving portion (2) which holds a video camera and is movable on the base portion, and the moving portion on the base. And a drive device (8) for reciprocating movement, and the transmission control means has position detection means (4, 5, 6) for detecting that the moving portion has come to two predetermined positions on the base, The video signal from the video camera is output to the stereoscopic display means according to the detection signal from the detection means.

According to a third aspect of the present invention, the above-mentioned predetermined 2
The position is characterized in that it is at or near a turning position of the moving direction in the reciprocating movement of the video camera. According to a fourth aspect of the invention, there is provided an adjusting means capable of adjusting at least one of the height position of the optical axis of the video camera and the above-mentioned predetermined two positions.

By moving the video camera back and forth, it is possible to obtain images at different positions from one video camera. By obtaining images at these different positions as images viewed by the human right and left eyes, it is possible to display a stereoscopic image on the stereoscopic display device. By making the reciprocating movement at a high speed (vibrating) by, for example, a motor, a real-time stereoscopic image can be obtained.

According to the third aspect of the present invention, since the position where the video image from the video camera is detected is near the reciprocal direction change position, the moving speed of the video camera is slow and the image does not need to be blurred. According to the invention described in claim 4, it is possible to reproduce the line of sight and the pupil distance of various observers from adults to children, and to more realistically observe the scenery of the reduced model.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram showing a schematic configuration of a first embodiment of the present invention. The video camera 1 is arranged on the stage 2, and the stage 2 is arranged on the base 3. The video signal from the video camera 1 is output to the video switcher 7. Guide 3a on the base 3
Is provided, and the stage 2 is slidable along the guide 3a in the direction of the arrow shown in FIG. The stage 2 and the base 3 constitute a linear motor. The drive of the linear motor is controlled by the drive device 8. The drive device 8 reciprocates the stage 2 on the base 3. Two photosensors (hereinafter simply referred to as “sensors”) 4 and 5 are provided on the side surface of the base 3 parallel to the moving direction of the stage 2 at a predetermined distance in the moving direction of the stage 2. Each of these sensors 4 and 5 is arranged such that a light projecting section and a light receiving section that receives light from the light projecting section face each other. A light blocking member 6 is provided on the side surface of the stage 2 to block light between the light projecting portion and the light receiving portion of the previous sensor. When the stage 2 reciprocates on the base 3, the light shielding member 6 is arranged in the internal space of the sensors 4 and 5 (between the light projecting unit and the light receiving unit) so as to shield the light from the light projecting unit. It is configured. In the driving device 8, the light shielding member 6 is the sensor 4
The stage 2 is moved back and forth so as to move back and forth between the sensor 5 and the sensor 5. That is, the sensors 4 and 5 are arranged near the position where the light shielding member 6 changes its moving direction. The light receiving portions of the sensors 4 and 5 output to the video switcher 7 a detection signal notifying that the video camera 1 has reached a predetermined position when the light from the light emitting portion is blocked.

When the video switcher 7 receives the signal from the sensor 4, it sends the video signal from the video camera 1 to the frame memory 9, and when it receives the signal from the sensor 5, the video switcher 7 sends the video signal from the video camera 1 to the frame memory. 1
Send to 0. The image of the video camera when the sensor 4 outputs the detection signal corresponds to the image when a person looks at an object with the left eye, and the image of the video camera when the sensor 5 outputs the detection signal is Corresponds to the image when looking at an object with the right eye.
Therefore, the baseline length of the video camera is substantially the same as the distance between the sensors 4 and 5.

The frame memories 9 and 10 are video cameras 1
Is reciprocating (the detection signal is not output from any sensor), and the input video signal is missing,
Continues to output video signals that have already been taken. Therefore, it is effective in preventing image quality deterioration such as image flicker due to the lack of a video signal. Further, the video signals from the frame memories 9 and 10 are output to the image memory device 11, and the respective video signals are recorded. The image memory device 11 is, for example, a magneto-optical disk or a VTR. Video signals from the frame memories 9 and 10 are output to the head mounted display 12 via the image memory device 11. The head-mounted display 12 has a left-eye visual field image display unit 12L that displays an image of the left-eye visual field and a right-eye visual field image display unit 12r that displays an image of the right-eye visual field, and each frame memory is provided in each image display unit. The video signals from 9, 10 are displayed in real time. Alternatively, the recorded image may be reproduced and displayed in the image memory device 12. The observer wears this head mounted display and looks at the image display sections 12L and 12R, and thereby the video camera 1
It becomes possible to stereoscopically view the video signal from the, and the landscape can be observed as if the user is actually in the place where the video camera 1 is capturing an image.

In this embodiment, the distance between the sensor 4 and the sensor 5 can be adjusted. Specifically, guide grooves (not shown) are provided in the mounting portions of the sensors 4 and 5 of the base 3.
Is provided and the user moves the sensors 4 and 5 along the guide groove as needed. For example, if this space is set to 0.33 mm and arranged in the above-mentioned 1/180 reduced model town, the scenery of that town can be observed as if one were actually inside the model town. . At this time, if the height from the ground to the optical axis of the video camera 1 is about 1 cm, the same scenery as that seen by a person with a height of about 180 cm can be obtained. Sensor 4 and sensor 5
By adjusting the interval between and and the height position of the optical axis of the video camera 1, various observation states from children to adults can be simulated.

In the present embodiment, the non-contact type sensors 4 and 5 are used as the position detecting device for detecting the position of the video camera, but the present invention is not limited to this, and a contact type sensor (for example, a touch sensor or the like). ) Is acceptable. Further, without arranging a sensor in particular, the timing at which the moving direction of the video camera 1 changes is detected from the drive control signal, the detection signal is directly input to the video switcher 7, and the video signal from the video camera 1 is input to the frame memory 9 Alternatively, it may be output to the frame memory 10.

If the moving speed of the video camera 1 is increased and the time interval between the output of the video signal for the left eye and the output of the video signal for the right eye is made very short, the frame memories 9 and 10 are stored. Even if omitted, the deterioration of image quality can be substantially ignored. Therefore, the signal from the video switcher 7 can be directly output to the head mounted display 12.

If the video camera is not placed on the stage as shown in FIG. 1 but is suspended by the feet 13a and 13b as shown in FIG.
By adjusting the lengths of a and 13b, the height position of the optical axis of the video camera 1 can be lowered and the adjustment can be easily performed. Specifically, the legs 13a and 13b are composed of two members, an inner cylinder member and an outer cylinder member that slides (up and down) along the inner cylinder member, and the outer cylinder is moved up and down. FIG. 4 is a modified example of the present embodiment, only the structure for holding the video camera 1 is different, and all other configurations are the same as the first embodiment shown in FIG.

FIG. 2 is a diagram showing a schematic configuration of the second embodiment of the present invention. In this embodiment, a device for reciprocating a video camera is made with a simpler structure than that of the first embodiment (linear motor). In FIG. 2, members having the same functions as those of the first embodiment described above are designated by the same reference numerals. The camera 1 is fixed to the plate member 14. The plate member 14 can be translated in the left-right direction by two plate springs 15. The voice coil motor 16 is connected to the side surface of the plate member 14. When the voice coil motor 16 is driven,
The plate member 14 reciprocates in the left-right direction. The position of the video camera 1 which gives the video camera 1 a required baseline length by this reciprocating movement is detected by the sensors 4, 5 and the light shielding member 6. FIG. 3 is a diagram showing a schematic configuration of the third embodiment of the present invention. In the present embodiment, a link rod 18 is used instead of the leaf spring 15 in FIG. 2, and the plate member 14 is reciprocated in the left-right direction by a pantograph mechanism. Except for the link rod 18, the structure is the same as that of the second embodiment.

In the second and third embodiments as described above, since the mass of the movable portion can be reduced, the video camera 1 can be moved at high speed and the number of parts can be reduced. There are advantages.

[0021]

According to the stereoscopic device of the present invention as described above, one video camera is reciprocally moved in the horizontal direction,
Since the image signals at two predetermined positions within the moving range are used for stereoscopic display, the object can be observed with a very small base line length. Therefore, when it is assumed that the person has been reduced, it is possible to make the three-dimensional view of the view visible to the reduced person's eyes. This is because by arranging this device in various reduced models, for example, you can stereoscopically observe a model of a building reduced to 1/180, and you can feel as if you were actually inside the reduced model. You can observe them. Also, by adjusting the interval between the two predetermined positions detected by the position detecting means, it is possible to perform a simulation that matches the pupil distance of a child or an adult.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a first embodiment of the present invention.

FIG. 2 is a diagram showing a schematic configuration of a second embodiment of the present invention.

FIG. 3 is a diagram showing a schematic configuration of a third exemplary embodiment of the present invention.

FIG. 4 is a diagram showing a modification of the first embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Video camera 2 ... Stage 3 ... Base 4, 5 ... Sensor 6 ... Light-shielding member 7 ... Video switcher 8 ... Drive device 9, 10 ... Frame memory 12 ... Head mounted display

Claims (4)

[Claims] 1. A stereoscopic device having a video camera and a stereoscopic display means for inputting a video signal from the video camera and displaying an image for the left eye and an image for the right eye, respectively. Moving means for reciprocating the camera in the horizontal direction, and receiving a video signal from the video camera,
A transmission in which one of the video signals at two predetermined locations within the reciprocating range of the video camera is used as a video signal for the left eye and the other is used as a video signal for the right eye, and is transmitted to the stereoscopic display means. A stereoscopic device comprising: a control unit. 2. The moving means includes a base portion, a moving portion that holds the video camera and can move on the base portion, and a drive device that reciprocates the moving portion on the base. The transmission control unit has a position detection unit that detects that the moving unit has come to two predetermined locations on the base, and outputs a video signal from a video camera according to a detection signal from the position detection unit. The device according to claim 1, wherein the device outputs to the stereoscopic display unit. 3. The apparatus according to claim 1, wherein the predetermined two positions are a change position of a moving direction in the reciprocating movement of the video camera or the vicinity thereof. 4. An adjusting means capable of adjusting at least one of a height position of an optical axis of the video camera and an interval between the predetermined two positions, according to any one of claims 1 to 3. Equipment.