JPH07250352A - Stereoscopic image pickup display system - Google Patents

Abstract

PURPOSE:To make a stereoscopic vision compatible with a broad visual field effect with a simple configuration by using plural cameras so that an image of part of an object is picked up in duplicate, the duplicated part is displayed stereoscopically on a lenticular screen and a peripheral part is displayed in two-dimension. CONSTITUTION:Plural cameras, for instance, two first and second cameras 1, 2 pick up an image of an object so that part of the object is in duplicate. The middle part and the left part of the duplicate part and the right side of the duplicate part are displayed as left and right images and the middle part is displayed stereoscopically on a lenticular screen and the surrounding part is displayed in two-dimension. Both effects of stereoscopic vision and broad visual field are made compatible with a simple configuration and the presence is enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stereoscopic image pickup display system used in a stereoscopic television for displaying a stereoscopic image, and particularly to satisfy the stereoscopic effect and the wide visual field effect at the same time to efficiently improve the sense of presence. The present invention relates to a stereoscopic image pickup display system that enables the above.

SUMMARY OF THE INVENTION According to the present invention, a stereoscopic image is displayed in the central portion of a display screen based on an image pickup signal obtained by picking up an image of a subject with a plurality of image pickup devices, and two images are displayed in the left and right portions of the display screen. By displaying a three-dimensional image, the stereoscopic effect and the wide-field effect are simultaneously satisfied, and the realistic sensation is efficiently improved.

[0003]

2. Description of the Related Art Conventionally, as a stereoscopic image pickup display system for a stereoscopic television for displaying a stereoscopic image, a viewer wears glasses to view a display screen and a viewer does not wear a glasses to view the display screen. The spectacle method is known.

In a glasses-type three-dimensional television, a television camera provided on the broadcasting station side picks up an image of a subject with two eyes,
By displaying the right-eye image and the left-eye image on the television receiver arranged on the receiver side on the basis of each image signal obtained by this in a polarized manner, a stereoscopic image is presented to a viewer wearing polarized glasses. show.

Further, in the stereoscopic television without glasses, a television camera provided on the broadcasting station side picks up an image of a subject with two eyes or multiple eyes, and arranges it on the receiver side based on each image signal obtained thereby. A right-eye image and a left-eye image are alternately displayed on a pixel basis on a television receiver that has been set, and a viewer is provided via a lenticular or a parallax barrier arranged in front of the screen of the television receiver. Show a stereoscopic image.

In this case, as shown in FIG. 4, the lenticular screen 101 is composed of a plurality of semi-cylindrical lenses 102 connected in the left-right direction, and each semi-cylindrical lens 102 causes the screen 10 of the television receiver.
The pixels of the right-eye image displayed on 3 are guided to the viewer's right eye, and the pixels of the left-eye image displayed on the screen 103 are guided to the viewer's left eye so that they are recognized as one pixel. As a result, binocular parallax is realized, and the viewer can see a stereoscopic image.

[0007]

However, the above-mentioned conventional stereoscopic image pickup display system has the following problems.

That is, in any of the conventional stereoscopic image pickup display systems as described above, a television camera provided on the broadcasting station side images a subject with two eyes or multiple eyes, and each image signal obtained by this method. Since the right-eye image and the left-eye image are displayed in an overlapping manner on the entire screen area of the television receiver arranged on the receiver side, compared to the amount of transmission information of the conventional television system. Then, there was a problem that the amount of transmitted information increased by the number of cameras.

Further, in recent years, there has been a tendency to widen the field of view of television receivers. Therefore, when the image is three-dimensionalized with such widening of the field of view, the amount of transmitted information increases dramatically. There was a problem of being lost.

Further, in any of the conventional stereoscopic image pickup and display methods, there is a problem that stereoscopic vision becomes uncomfortable because the stereoscopic image suddenly disappears at the most peripheral portion in any of the methods.

In view of the above-mentioned circumstances, the present invention provides a stereoscopic image pickup display system capable of simultaneously realizing stereoscopic viewing and widening of the field of view while not significantly increasing the amount of transmitted information and simplifying the configuration. It is intended to be provided.

[0012]

In order to achieve the above-mentioned object, the present invention is, according to claim 1, in which an object is imaged by a plurality of cameras, and a plurality of image signals obtained thereby are displayed on a receiver. In addition to overlapping display by the device, the light path selection member arranged in front of the screen of the display device guides each pixel displayed on the screen of the display device to the left eye and the right eye of the viewer, respectively, for stereoscopic viewing. In the stereoscopic image pickup display system in which the image pickup is performed, a plurality of image signals are generated by picking up images of a subject to be picked up by each of the cameras, and a part of each of the image signals is displayed by a display device of the receiver. Are displayed so as to overlap each other, and the three-dimensional structure is provided by guiding the respective pixels displayed on the screen of the display device to the left eye and the right eye of the viewer by the optical path selection members arranged in the overlapping portions. It is of the remaining pixels the person's left eye, and characterized by causing a two-dimensional view led directly to the right eye.

According to a second aspect of the present invention, in the stereoscopic image pickup display system according to the first aspect, the stereoscopic effect displayed on the display device is adjusted according to the number of cameras.

According to a third aspect of the present invention, in the stereoscopic image pickup display system according to the first or second aspect, the optical path selection member is any one of a lenticular screen, a parallax barrier, and an integral photography. .

According to a fourth aspect, in the stereoscopic image pickup display system according to the first, second and third aspects, the display device is any one of a CRT device, a liquid crystal display device, a plasma display device, a light emitting diode display device or an EL device. It is characterized by that.

[0016]

In the above structure, in claim 1, the subject is imaged by a plurality of cameras, and a plurality of image signals obtained thereby are overlapped and displayed on the display device of the receiver. In a stereoscopic imaging display system in which each of the pixels displayed on the screen of the display device is guided to the left eye and the right eye of the viewer by an optical path selection member arranged in front of the screen, a stereoscopic imaging display system is used to capture images by the cameras. A plurality of image signals are generated by capturing an image of a target subject so as to partially overlap each other, and the image signals are displayed by the display device of the receiver so as to partially overlap each other. Each pixel displayed on the screen of the display device by the arranged optical path selection member is guided to the left eye and the right eye of the viewer, respectively, to make it stereoscopic, and the remaining pixels are left eye of the person, By two-dimensional vision led directly to the eye, without increasing the amount of transmitted information, and the stereoscopic while simplifying the structure, improving the sense of realism to achieve a wide field of.

According to the present invention, the stereoscopic effect displayed on the display device is adjusted according to the number of cameras, so that the stereoscopic intensity is increased from the center of the screen of the television receiver toward the end. Is gradually reduced to reduce visual discomfort, and compatibility with a normal two-dimensional display system is ensured.

According to a third aspect of the present invention, as the optical path selecting member according to the first or second aspect, any one of a lenticular screen, a parallax barrier, and integral photography is used to realize stereoscopic vision. .

Further, in claim 4, any one of a CRT device, a liquid crystal display device, a plasma display device, a light emitting diode display device or an EL device is used as the display device of claim 1 or claim 2 or claim 3. To achieve stereoscopic vision.

[0020]

【Example】

<< First Embodiment >> FIG. 1 is an explanatory view schematically showing an example of an image pickup method used in a first embodiment of a stereoscopic image pickup display method according to the present invention, and FIG. 2 is a display used in this first embodiment. It is explanatory drawing which shows an example of a system typically.

First, in the first embodiment, the broadcast station side is shown in FIG.
As shown in, the first camera 1 and the second camera 2 are installed so as to correspond to the distance between the human eyes, and one of the first camera 1 and the second camera 2, that is, the camera corresponding to the left side of the human eye ( For example, the first camera 1) captures an image in the left direction including the central portion of the subject, and the camera corresponding to the right side of the human eye (the second camera 2 in this example) captures the right portion including the central portion of the subject. The direction is imaged, and the left and right image signals obtained by the first and second cameras 1 and 2 are transmitted to the receiver side.

Then, on the receiver side, as shown in FIG.
By a television receiver in which the lenticular screen (optical path selection member) is arranged only in the central portion (stereoscopic display area) of the screen 3 of the RT (display device) and the lenticular screen is not arranged in the left and right portions of the screen. The central part of the screen on which the left and right image signals transmitted from the broadcasting station side are received and the lenticular screen is arranged, and the left part of the screen on which the lenticular screen is not arranged (left two-dimensional display area)
The left side image signal is displayed on the left side of the pair of pixels above, and the center part of the screen where the lenticular screen is arranged and the right side part of the screen where the lenticular screen is not arranged (right side two-dimensional display area)
The right image signal is displayed on the right side of the upper pair of pixels.

As a result, the image of the subject is stereoscopically displayed in the central region of the screen 3 displayed on the television receiver, and the left and right images of the subject are two-dimensionally displayed in the left and right regions of the screen 3.

As a result, for example, when high-definition cameras are used as the first and second cameras 1 and 2 on the broadcasting station side, the first camera 1 and the second camera 2 have an image pickup area of 1/2 and an overlap area. Then, since the aspect ratio (aspect ratio) of the high-definition camera is 16: 9, the aspect ratio can be widened to 24: 9 by the imaging method of the first embodiment. While the viewing angle of the high-definition television receiver is 30 degrees, in the first embodiment, the viewing angle can be set to 45 degrees, and the sense of presence can be greatly improved.

Further, according to the subjective evaluation experiment, since the improvement effect is limited to a viewing angle of up to about 50 degrees, it is possible to secure a viewing angle necessary for obtaining a realistic sensation by the first embodiment. it can.

In addition, according to another subjective evaluation experiment on stereoscopic vision, it is said that two-dimensional vision is more dominant than stereoscopic vision in peripheral vision, and it is less necessary to perform stereoscopic display. As in the embodiment, the peripheral portion of the screen 3 is
By displaying three-dimensionally, without impairing the sense of presence,
The amount of transmitted information can be reduced.

Further, in the first embodiment, the lenticular screen is provided only in the central portion of the screen 3 displayed on the television receiver, so that the display device is simplified and the manufacturing cost is reduced. be able to.

As described above, in the first embodiment, the broadcasting station side images the subject by overlapping the imaging areas by the first and second cameras 2 and 3, and the left side image signal obtained by this imaging operation. And a right side image signal are transmitted to the receiver side, the left side image signal is displayed on the left side portion including the central portion of the television receiver provided on the receiver side, and the right side including the central portion. The right side image signal is displayed in the part, and only this part is stereoscopically displayed by the lenticular screen provided in the central part,
Since the peripheral part is two-dimensionally displayed, it is possible to efficiently realize a stereoscopic view and a wide field of view at the same time without increasing the amount of transmitted information and simplifying the configuration. it can.

<Second Embodiment> FIG. 3 is an explanatory view schematically showing an example of an image pickup method used in a second embodiment of the stereoscopic image pickup display method according to the present invention.

As shown in this figure, in this second embodiment,
The first camera 4, the second camera 5, and the third camera 6 are installed at predetermined intervals on the broadcasting station side, and one of the first to third cameras 4 to 6, that is, the camera (the one corresponding to the left side of the human eye) ( For example, the first camera 4) images in the left direction including the central portion of the subject and the left second overlap region slightly left from the central portion, and the subject is photographed by the third camera 6 that hits the right side of the human eye. In the right direction including the right center second overlap region slightly to the right of the center part of the center part of the human body, and the second camera 5 that hits the center of both eyes of the human, and the center part of the subject, the left side, and the right side second. A region including the overlap region is imaged, and the left side, right side, and center side image signals obtained by the first to third cameras 4 to 6 are transmitted to the receiver side.

On the receiver side, 3 is displayed at the center of the screen.
A television image reception in which a lenticular screen with one pixel is arranged, two lenticular screens with one pixel are arranged on the left and right of the center of the screen, and no lenticular screen is arranged on the left and right parts of the screen. The left side, right side, and center side image signals transmitted from the broadcasting station side by the machine are received, and the central portion of the screen where the lenticular screen is arranged (strong stereoscopic vision area) and the area on the left side of this central portion of the screen (weak left side) (Stereoscopic region), the left side image signal is displayed on the left side of a pair of pixels on the left side part (left side two-dimensional region) of the screen where the lenticular screen is not arranged, and the center part of the screen where the lenticular screen is arranged ( Strong stereoscopic view area) and the area on the right side of the center of the screen (right weak stereoscopic view area), The central part of the screen (strong stereoscopic view region) in which the right image signal is displayed on the right side of a pair of pixels on the right side (right side two-dimensional region) of the screen without the circular screen. By displaying the center side image signal on the center side of a pair of pixels on both sides of the screen center portion (left side and right side weak stereoscopic vision area), it is possible to perform steps from the screen center portion to the periphery. The stereoscopic effect is reduced to be displayed.

As a result, the image of the subject is strongly stereoscopically displayed in the central area of the screen of the television receiver, the image of the subject is weakly stereoscopically displayed in the left and right areas of the screen, and the subject is further displayed in the left and right edge areas of the screen. The left and right images are displayed two-dimensionally.

By doing so, in the second embodiment, as in the first embodiment described above, stereoscopic viewing and widening of the field of view can be achieved without increasing the amount of transmitted information and simplifying the configuration. And at the same time, it is possible to efficiently improve the realistic sensation, and it is possible to reduce the visual discomfort compared to the first embodiment described above.

Further, in the second embodiment, the central side image signal obtained by the second camera 5 provided on the broadcast station side is transmitted to the receiver side, so that a normal television receiver (two-dimensional) Since it can be reproduced as it is on a display type television receiver, compatibility with a two-dimensional display system can be ensured.

<< Third Embodiment >> In the second embodiment described above, three cameras (first to third cameras 4 to 6) are provided on the broadcast station side, but four or more cameras are provided. The image signals obtained by these cameras may be transmitted to the receiver side for stereoscopic display on the television receiver.

In this case, of the cameras provided on the broadcasting station side, two cameras at the left and right ends pick up images of the two-dimensional imaging area, and two-dimensional display is performed on the left and right ends of the television receiver provided on the receiver side. Along with that, each image signal obtained by a plurality of cameras between the cameras, a pixel according to the number of each image signal by a lenticular screen provided in front of the screen of the television receiver. One is displayed stereoscopically.

As a result, the stereoscopic viewing angle can be increased and a more natural stereoscopic viewing can be realized.

<< Fourth Embodiment >> In addition, the above-mentioned first to third
In the embodiment, in order to realize binocular parallax, a lenticular screen is arranged in front of the screen of the television receiver, and the pixels of each image signal are guided by the lenticular screen to the left eye and the right eye of the viewer. However, instead of such a lenticular screen, an IP (Integral Pho
tography), the above-mentioned first to third
The same effect as that of the embodiment can be obtained. Furthermore, by installing a plurality of cameras in the vertical direction and using such an IP, stereoscopic viewing can be realized in the vertical direction.

<< Fifth Embodiment >> In addition, the above-mentioned first to third
In the embodiment, in order to realize binocular parallax, a lenticular screen is arranged in front of the screen of the television receiver, and the pixels of each image signal are guided by the lenticular screen to the left eye and the right eye of the viewer. However, even if a parallax barrier (optical path selection member) is used instead of such a lenticular screen, the same effects as those of the above-described first to third embodiments can be obtained. Furthermore, since such a parallax barrier can be manufactured by simply making a large number of holes in a thin plate, the manufacturing can be facilitated and the manufacturing cost of the entire system can be reduced.

<< Sixth Embodiment >> In addition, the above-mentioned first to fifth
In the embodiment, a CRT (cathode ray tube) is used as a display device of the television receiver, but instead of such a CRT, a liquid crystal display device, a plasma display device, a light emitting diode display device, an EL
Even if an (Electro Iuminesence) device or the like is used, the same effects as those of the above-described first to fifth embodiments can be obtained.

[0041]

As described above, according to the present invention, in claim 1, the stereoscopic view and the wide field of view can be simultaneously realized without increasing the amount of transmitted information, and the efficiency can be improved. The presence can be improved.

According to the second aspect of the invention, the stereoscopic effect displayed on the display device is adjusted according to the number of cameras, so that the stereoscopic intensity is increased from the center of the screen of the television receiver toward the end. It is possible to gradually reduce the size to reduce the visual discomfort, and to ensure compatibility with a normal two-dimensional display system.

In the third aspect, any one of a lenticular screen, a parallax barrier, and an integral photography is used as an optical path selecting member for guiding each pixel displayed on the television receiver to the left eye and the right eye of the viewer. By using or, stereoscopic vision can be realized by the current technology. According to the fourth aspect, any one of a CRT device, a liquid crystal display device, a plasma display device, a light emitting diode display device, and an EL device can be used as a display device to realize stereoscopic vision with the current technology. .

[Brief description of drawings]

FIG. 1 is an explanatory diagram schematically showing an example of an image pickup method used in a first embodiment of a stereoscopic image pickup display method according to the present invention.

FIG. 2 is an explanatory diagram schematically showing an example of a display system used in the first embodiment shown in FIG.

FIG. 3 is an explanatory diagram schematically showing an example of an image pickup method used in a second embodiment of the stereoscopic image pickup display method according to the present invention.

FIG. 4 is an explanatory diagram schematically showing the basic principle of a stereoscopic image pickup display method using a conventionally known lenticular screen.

[Explanation of symbols]

 1 1st camera 2 2nd camera 3 Screen 4 1st camera 5 2nd camera 6 3rd camera

Claims (4)

[Claims] 1. A subject is imaged by a plurality of cameras, a plurality of image signals obtained thereby are overlapped and displayed on a display device of a receiver, and an optical path is arranged in front of the screen of the display device. In a stereoscopic image pickup display method in which each of the pixels displayed on the screen of the display device by a member guides the viewer's left eye and right eye into a stereoscopic image, a part of an object to be imaged by each camera is A plurality of image signals are generated by imaging so as to overlap each other, and while displaying each of the image signals by the display device of the receiver so as to partially overlap, the optical path selection member arranged in the overlapping portion Each pixel displayed on the screen of the display device is guided to the left eye and the right eye of the viewer respectively to make it stereoscopic, and the remaining pixels are directly guided to the left eye and the right eye of the person to be viewed two-dimensionally. , Stereoscopic imaging display method, characterized in that. 2. The stereoscopic imaging display system according to claim 1, wherein the stereoscopic effect displayed on the display device is adjusted according to the number of the cameras. 3. The optical path selecting member is a lenticular screen, a parallax barrier, or an integral screen.
The stereoscopic imaging display system according to claim 1 or 2, which is one of photography. 4. The stereoscopic image pickup display system according to claim 1, wherein the display device is a CRT device, a liquid crystal display device, a plasma display device, a light emitting diode display device, or an EL device.