JPH09327042A - Video camera device for image pickup for three-dimension stereoscopic video signal converter and optical adaptor used for the video camera device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the stereoscopic vision system at a low cost in which one video camera outputs a 3-dimension stereoscopic video signal and a stereo scopic video image is enjoyed. SOLUTION: An optical adaptor for picking up a stereoscopic video image in which a video image seen by a right eye is displayed on a right half of a screen and a video image seen by a left eye is displayed on a left half of the screen is fitted removably in front of an image pickup lens 10 of a video camera main body 2. A wide angle adaptor 30 having a couple of concaved lenses 32L, 32R being a wide angle means is removably fitted to the optical adaptor 20 for the stereoscopic image pickup. Thus, stereoscopic image pickup is attained without changing a field angle and a powerful video image is picked up and when a television screen 61 on which the video signal is outputted is seen by an eyeglass 70 with shutter, a video image with a stereoscopic effect is seen and the stereoscopic image is seen far simpler by any body in comparison with the case of using two video camera systems and a powerful stereoscopic image is seen at a low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to obtain a video signal dedicated to each of the right eye and the left eye by processing a video image taken like a so-called "stereo photograph (stereo pair)". The present invention relates to a video camera device and an optical adapter device for the 3D stereoscopic video signal conversion device.

[0002]

2. Description of the Related Art Even if a three-dimensional stereoscopic vision device such as a so-called three-dimensional television is developed, a three-dimensional (3D) device for viewing the device is required.
In order to photograph or record / reproduce software for D) by yourself, the handling of a video camera device itself, a photographing method, and a video tape recorder (VTR) is difficult, and a simple method is required.

[0003] In order to shoot a three-dimensional stereoscopic image, two video cameras are usually installed with their shooting lenses set apart from each other by two eyes (normally about 65 mm). In this case, it is necessary to prepare two video cameras having matching characteristics and to fix the photographing lens firmly at a distance from the interpupillary distance. In addition, the video signals output from the two video cameras have to be recorded and reproduced by two VTRs that move in synchronization.

[0004] However, at present, a device such as a so-called W-VHS that can simultaneously record two video signals on one tape is commercially available, and it may be used for recording and reproduction. To stereoscopically view these two video signals, for example, by using two video projectors, they are projected on a screen as projection lights whose polarization directions are orthogonal to each other, and wearing polarizing glasses with corresponding polarization filters How to see is known.

[0005] Further, as a method of simplifying the recording / reproducing, two video signals for the left eye and the right eye are converted into one video signal for the left eye and the right eye alternately for each field. Techniques for converting video signals are known. This signal can be viewed stereoscopically by displaying it on a television screen and wearing glasses with shutters that alternately and synchronously close one eye.

Further, as a simpler shooting method,
This is to use a technique of projecting a video for the right eye and the left eye on the right half and the left half of the screen by an optical method, that is, a method of shooting a video in a form like a so-called “stereophotograph”. further,
Adapters and viewers for taking slides of "stereophotographs" with a camera are also commercially available. When shooting with this adapter, the right eye is projected on the right half of the screen, and the left eye is projected on the left half. Become. Furthermore,
For a larger screen, a wedge-type special lens may be attached (see JP-A-59-30390).

[0007]

However, in the conventional three-dimensional image capturing method using the two video cameras described above,
In order to keep the two taking lenses separated by the pupil distance,
It was necessary to fix the stand firmly and integrally. To do that, I had to mount it on a solid tripod and shoot, and it lacked maneuverability, and I was not able to shoot with my hand. Trying to zoom in further, 2
It was necessary to move the lens in conjunction with the table, and the operation was complicated. In addition, two video cameras having matching characteristics are required, which is a great financial burden on the user.

On the other hand, it suffices to take a stereoscopic photograph with a single video camera, but it is necessary to place a face in the center of the TV screen in order to see the image taken by this method. , The viewing position was limited. Moreover, there was the inconvenience that you could only see a vertically long image that was split right and left in half. Also, in the case of a large screen, it was necessary to put a special wedge-type lens on the eyes.

Therefore, in the present invention, the right half and the left half of the screen are imaged by a video recording method such as a so-called "stereoscopic picture" in which images for the right eye and the left eye are projected by an optical method. The video signal of the specified shape is converted into a video signal containing the video for the right eye and the video for the left eye alternately for each field, or it is converted into two independent video signals for the right eye and the left eye. The present invention provides a video camera device for photographing a 3D stereoscopic video signal conversion device and an optical adapter device used for the device.

[0010]

[Means for Solving the Problems] The image for one eye is placed in the right half of the screen, and the image for the other eye is placed in the left half of the screen. Regarding the 3D stereoscopic video signal, the right screen and the left screen of this 3D stereoscopic video 3D stereoscopic video signal are cut off and then enlarged to fill the screen, and enlarged for the right eye alternately for each field. It is configured to output a video signal such that the screen and the enlarged screen for the left eye come to each other, or a stereoscopic photo type 3D stereoscopic video signal is output.
It is characterized in that it is configured to be converted into a three-dimensional stereoscopic video signal composed of two independent video signals of a video signal for the right eye and a video signal for the left eye.

Further, the present invention is characterized in that the wide-angle image is first captured by the wide-angle means for widening the image when displaying the image.

With such a configuration, in the stereoscopic photograph type, what is seen only from the central position with respect to the screen such as the television screen and the vertically long screen is replaced with special glasses such as glasses with shutters and polarized glasses. By applying
Many people can see it at the same time, but on a landscape screen.
In addition, by incorporating the 3D stereoscopic image signal conversion device having the above-mentioned configuration into a video camera device, it is only necessary to attach an optical adapter device for stereoscopic photography in front of the taking lens of the video camera device, and the right side is alternated for each field. It is possible to output a video signal in which an enlarged screen for the eye and an enlarged screen for the left eye are placed, and to record / reproduce with a recording / reproducing device such as a VTR.

Further, even if the image is enlarged to create left and right images, since the image is first taken after widening the angle, the enlarged image is canceled out, and the optical adapter for stereoscopic photography is taken. Before the device is mounted in the video camera device, the angle of view of the shooting lens of the original video camera device is close to that of the original, so that the image can be seen in a more natural and easy-to-see state.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

[First Embodiment] FIGS. 1 and 3 are a three-dimensional stereoscopic image connected to a video camera device 1 and a video camera body 2 of the video camera device 1 according to a first embodiment of the present invention. The video signal converter 40 is shown. In this video camera device 1, an optical adapter device 20 for stereoscopic photography is detachably attached to the front side of the video camera body 2, and a magnifying lens 1 is attached to the rear side of the video camera body 2.
An eyecup 15 having a number 4 is detachably attached.
Further, the three-dimensional stereoscopic video signal conversion device 40 is provided with three adjusting operation knobs 42 on the front surface of the casing-type device body 41. Further, a video tape recorder (VTR) 50 and a stereoscopic device 60 with shutter glasses are connected to the three-dimensional stereoscopic video signal conversion device 40.

As shown in FIGS. 1 to 3, the video camera main body 2 of the video camera device 1 is formed in a casing type with synthetic resin or the like, and the video camera main body 2 has a solid-state image pickup element ( CCD) 3 is built in. The video signal captured by the solid-state image sensor 3 is recorded / reproduced by the VTR 7 built in the video camera body 2 through the amplifier 4, the video signal processing circuit 5, and the video recording / reproducing circuit 6. . A liquid crystal display (LCD) 9 as a small monitor is connected to the video recording / reproducing circuit 6 via a liquid crystal drive circuit 8. Further, a taking lens 10 is arranged at a position facing the solid-state image pickup device 3 on the front surface of the video camera main body 2, and a microphone 12 is attached on the upper side of the front surface. Further, a changeover switch 13 is arranged on the left side surface of the video camera body 2.

As shown in FIGS. 2 and 3, the filter adapter screw portion (mount portion) 11 of the video camera body 2 of the video camera device 1 is detachably screwed with an optical adapter device 20 for stereoscopic photography. It is supposed to be worn. A pair of left and right flat reflecting mirrors 22L, 22R are provided on the inner surfaces of the left and right inclined walls 21a, 21b of a case (image capturing section) 21 made of synthetic resin or the like forming the outer casing of the optical adapter device 20 for stereoscopic photography. Has been placed. In addition, in the rear of the central hanging piece 23 in the case 21, the hanging piece 2
The pair of flat reflecting mirrors 2 and 3 form a triangular tube.
A pair of left and right flat reflecting mirrors 24L and 24R are arranged so as to face the 2L and 22R substantially in parallel. As a result, the pupil distance D
An image corresponding to what is seen from the left and right eyes separated by (D≈65 mm) is focused on the left half and the right half, and the photographing lens 1
It is supposed to enter 0. A screw portion 25 is formed on the rear portion of the case 21, and the screw portion 25 is detachably attached to the filter attaching screw portion 11 of the video camera body 2.

As shown in FIGS. 1 to 3, a wide-angle adapter (a wide-angle adapter is provided in a pair of left and right openings 21c, 21d which are rectangular in shape and serve as an image capturing portion formed on the front wall side of the case 21 of the optical adapter device 20. The wide-angle means 30 can be fitted in and removed (removable), and can be used integrally with the optical adapter device 20. The wide-angle adapter 30 includes a rectangular frame portion 31 and a pair of left and right openings 31 formed on the front side of the frame portion 31.
It is composed of a pair of concave lenses (wide-angle means) 32L and 32R fitted in a and 31b. The frame portion 31
Pair of openings 31a and 31b, that is, the pair of concave lenses 3
2L and 32R are cases 21 of the optical adapter device 20.
A pair of left and right openings 21c, 21 which are image capturing portions of
It is formed in a size that sufficiently covers d.

As shown in FIG. 3, the video signal input terminal 41a of the device main body 41 of the three-dimensional stereoscopic video signal conversion device 40.
Is connected to the video signal output terminal 6a of the video recording / reproducing circuit 6 of the video camera body 2. When the output signal of the video signal of the video recording / reproducing circuit 6 of the video camera main body 2 is input to the three-dimensional stereoscopic video signal conversion device 40, the three-dimensional stereoscopic video signal conversion circuit 43 built in the device main body 41 is used. It is processed. That is, the video output signal (OUT) from the video recording / reproducing circuit 6 is A / D converted by the A (analog) / D (digital) signal converting circuit 44 and then stored in the two-dimensional memory 45, and the operation is performed from this. Knob 4
2 and a synchronization controller (Sync SEP) 47 are connected to the timing controller 48 to provide an arbitrary enlargement ratio (base points X ₁ and X ₂ and enlargement ratios X and Y) at arbitrary timing.
The image is enlarged once and then cut out. Then, the left-eye video signal and the right-eye video signal, which are cut out by the three-dimensional stereoscopic video signal conversion circuit 43 and enlarged to fill the screen, are alternated for each field in the left-eye video signal and the right-eye video signal. The video signal for the eye is converted into a three-dimensional stereoscopic video signal, and is output as a single video signal (S) to the video signal output terminal 41b of the apparatus main body 41 via the D / A signal conversion circuit 46. Has become.

As shown in FIG. 3, the VTR 50 and the television receiver 60 as a stereoscopic device are connected to the video signal output terminal 41b of the three-dimensional stereoscopic video signal conversion device 40, respectively. In this television receiver 60,
For example, as shown in FIG. 4 displayed on the cathode ray tube (screen) 61.
The images e _L and e _R for the left and right eyes shown in (C) and (D) are stereoscopically viewed using glasses (special glasses) 70 with shutters. That is, the frame 71 of the eyeglasses 70 with shutters
In the left and right lens mounting frame portions, liquid crystal shutters 72L,
72R is provided, and a light receiving portion (not shown) is attached to the center of the frame 71. This light receiving unit is an infrared light emitting device 62 installed on the television receiver 60.
It receives infrared rays encoded from the sync signal from. Then, the signal from the infrared light emitting device 62 is received by the light receiving section of the shutter-equipped eyeglasses 70, and the pair of left and right liquid crystal shutters 72L and 72R of the shutter-supplemented eyeglasses 70 are used for the respective images e.
By opening and closing alternately according to _L and e _R , stereoscopic viewing is possible.

As described above, the video camera device 1 of the first embodiment, the three-dimensional stereoscopic image signal conversion device 40, the VTR 50 and the television receiver 60 are used for the stereoscopic vision system, and the image is taken by the video camera device 1. When trying to stereoscopically view the image a as shown in FIG.
As shown in FIG. 3, the filter mounting screw portion 11 of the video camera body 2 of the video camera device 1 is attached with the optical adapter device 20 for stereoscopic photography and the wide-angle adapter 30 which are integrated.

Then, a scene a as shown in FIG.
Take a picture of a woman in the background of the sea. At this time, as shown in FIG.
As shown in (B), the image b _R viewed with the right eye and the image b _L viewed with the left eye are halved on one screen b and enter the taking lens 10 ( Here, the background palm trees, yachts, clouds, etc. are slightly deviated from the woman due to the parallax of the left and right eyes depending on the distance).

Here, FIG. 4A shows the angle of view when the optical adapter device 20 for stereoscopic photography is not attached to the video camera body 2, and shows up to which range. There is. And in FIG. 4 (B), since the wide-angle adapter 30 is attached, it becomes approximately 1/2 times,
Therefore, it is possible to shoot two images with the same angle of view as in FIG. 4A on the left and right. If the optical adapter device 2
0 without the wide-angle adapter 30 shown in FIG.
The left and right images b _L and b _R in FIG.
Only the area of 4 can be photographed, and as a result, for example, only the face is zoomed up. By the way, in a three-dimensional stereoscopic image, in order to feel a stereoscopic image, it is more important to obtain a three-dimensional effect more strongly by providing a foreground, a middle ground, and a distant view that can be compared in distance. In this sense, the role of the wide-angle adapter 30 is very important. Further, as can be seen from FIG. 4B, the upper and lower parts are cut, but this is because the optical adapter device 20 for stereoscopic photography is in accordance with the object of the present invention and is not necessary later. This is because the upper and lower parts do not receive light from the beginning, and the optical system that exposes the upper and lower parts is omitted, and as a result, the optical adapter device 20 can be made compact.

An image b shown in FIG. 4 (B) through the taking lens 10 of the video camera device 1 is C of the video camera body 2.
It is shot on CD3. Then, this image b is recorded / reproduced by the VTR 7 incorporated in the video camera body 2, and at this time, it is output from the video signal output terminal 6a of the video camera body 2. The image b is also reflected on the LCD 9 as a small monitor, which looks like FIG. 4B, so that the photographer can take a picture while recognizing which range is taken.

Next, when the video output signal (OUT) of the video camera body 2 is input to the three-dimensional stereoscopic video signal conversion device 40, it is processed by the three-dimensional stereoscopic video signal conversion circuit 43. That is, in the image b shown in FIG. 4B, the portion of the image b _L (inside the left half hatching) is 3 for the left eye.
The image is cut out by the three-dimensional stereoscopic image signal conversion circuit 43 and enlarged to fill the screen to form a cut-out enlarged image e _L shown in FIG. 4 (C). For the right eye, the image b _R in FIG. 4 (B) is obtained. The part (inside the hatching in the right half) is cut out by the three-dimensional stereoscopic video signal conversion circuit 43, enlarged to fill the screen, and the cut enlarged image e _R shown in FIG.
become that way. Then, the three-dimensional stereoscopic video signal converter 4
As an output signal from the video signal output terminal 41b of 0,
The image e _L for the left eye and the image e _R for the right eye are output as one image signal S that is alternately arranged for each field. As shown in FIG. 3, one video signal S can be recorded / reproduced by another normal VTR 50, and can be stereoscopically viewed by a large number of people when viewed on the television receiver 60 through the eyeglasses 70 with shutters.

In the above description, the entire range of the image b _L in FIG. 4B is cut out, but in actuality, it may be cut out with a margin around the part slightly smaller than the image b _L. Further, in the above-described stereoscopic system, a filled sequential stereoscopic signal (a signal that enables images for the right eye and the left eye to be alternately displayed for each field) is used as a stereoscopic picture type video signal, which is received by the television receiver 60. CRT 6
However, the present invention is not limited to this, and two independent video signals, that is, a video signal for the right eye and a video signal for the left eye, are provided as the stereoscopic video signal. And project the images with the polarization directions orthogonal to each other on the screen with two liquid crystal projectors equipped with polarizing plates with the horizontal and vertical polarization directions. A large number of viewers may be able to easily enjoy stereoscopic viewing by viewing.

[Second Embodiment] FIGS. 5 to 8 show a second embodiment.
The example of embodiment of is shown. Although the optical adapter device for stereoscopic photography of the first embodiment is an optical system that cuts the upper and lower parts of the image, the video adapter device (photographing device) 1 of the second embodiment is An optical adapter device 20 for stereoscopic photography used is a full-size optical system in which a pair of left and right openings 21c and 21d of a case (image capturing part) 21 are vertically long and upper and lower parts of an image are not cut. The upper and lower parts of the image are cut by a pair of left and right concave lenses (wide angle means) 32L and 32R of the wide angle adapter 30. A pair of left and right mark holes 31c and 31d are formed in the upper frame portion 31 at the center of the pair of concave lenses 32L and 32R, and a red filter (optical Means f _R , and the mark hole 32c on the left side has a green filter (optical means) f _L built therein. For example, if this is displayed on the monitor as shown in FIG. 8A, the green mark M _L is displayed in the center of the left and right images.
And the red mark M _R will be entered. These marks M _L and M _R are very convenient as will be described below.

First, the marks M _L and M _R are very convenient because the center of the object can be aligned with the marks M _L and M _R at the time of photographing. FIGS. 8 (B) and 8 (C) show a stereoscopic view with naked eyes by a parallel method or the like without using a viewer such as glasses with shutters 70. FIG. 8 (B) shows
Right and left images are displayed on the small liquid crystal monitor 60 ', and the images are viewed by the so-called parallel method (a method of looking at a distant line, that is, a method of viewing with a line of sight close to parallel) for naked-eye stereoscopic viewing. At this time, the filters f _L and f _R on the front surface of the frame portion 31 of the wide-angle adapter 30, that is, the marks M _L and M _{R, respectively.}
If the eyes of both eyes are turned so that the green color and the red color overlap with each other, stereoscopic parallel viewing can be performed at that point. In this way, the marks M _L and M _R can be used as a target for stereoscopic viewing.

FIG. 8C shows a video program (not shown).
Once the image is printed on a postcard size paper P using a linter
I am making a three-dimensional photograph and viewing it in three dimensions. This
Again, each mark M_L, M_RIs an aid for stereoscopic vision
Stand on. Where each mark M _L, M_RIn the frame 31
However, you may put it in the image. Also here optical
I made the mark electrically, but I made the image electrically and made the mark.
You may include it. Also, the colors are red and green,
It may be just white (may be changed if necessary)
good).

[Third Embodiment] FIGS. 9 and 10 show a third embodiment. An optical adapter device 20 'for stereoscopic photography is detachably attached to the filter attaching screw portion 11 of the video camera device 1 of the third embodiment. This optical adapter device 2
On the rear side (screw portion 25 side) in the lens barrel 21 'which serves as an image capturing section of 0', instead of the plane reflecting mirrors 22L, 22R, 24L, 24R of the above-mentioned respective embodiments, a plane (viewed from above) is used. Wedge-shaped edge prism (triangular prism) 2
6'is arranged, and a concave lens (wide-angle lens) 32 is arranged on the front side of the lens barrel 21 '.
The lens barrel 21 'and the mounting screw portion 25 are joined to each other by a joint portion 26.
It can be rotated with, and adjustment such as horizontal direction is possible.

As a method for taking a stereoscopic image using an edge prism, Japanese Patent Laid-Open No. 59-3 disclosed in the prior art.
The technology of Japanese Patent No. 0390 is known. With this technology, there is no problem because what is taken is displayed as it is on a television receiver or the like for stereoscopic viewing. However, in the present embodiment, the image is enlarged and displayed. I made it built. Since the edge prism 26 'is arranged on the rear side of the lens barrel 21', the appearance is the same as that of a normal conversion lens.
Unlike the first and second embodiments, there is an advantage that stereoscopic shooting can be performed without the feeling that a stereoscopic image is being taken, without being concerned by people around.

Further, in the method using the edge prism 26 ', two left and right images having a certain angle with respect to the concave lens 32 are projected, and for example, for indoor use
If the angle is set so that the stereoscopic effect can be well expressed at 5 m, there is a possibility that the stereoscopic effect is not properly produced outdoors. This inconvenience is solved by the fourth embodiment shown in FIGS. 11 to 13 described later.

[Fourth Embodiment] FIGS. 11 to 13 show a fourth embodiment. An optical adapter device 20 ″ for stereoscopic photography is detachably attached to the filter mounting screw portion 11 of the video camera device 1 of the fourth embodiment, and the third embodiment is used. In the form example, the bending angle of the projection light by the edge prism 26 'is constant, and thus it can be adjusted. That is, the adapter device 20 "is a variable triangular prism (optical member) 26".
And a hood-type holder (image capturing part) 21 ″ incorporating the variable triangular prism 26 ″, and transparent plate glasses (transparent thin plates) 23 ″ and 23 ″ attached to the left and right front surfaces of the variable triangular prism 26 ″. And the variable triangular prism 2
A holder 21 "having a pair of hook portions 27, 27 provided on the upper and lower portions of the center of the front surface of 6" and a pair of protrusions 28a, 28a fitted to the pair of hook portions 27, 27.
A square frame-shaped arm 28 supported on the left front side of the inside through a pair of upper and lower pin portions 28b, 28b so as to be swingable in the front-rear direction.
It is composed of and.

As shown in FIGS. 12 and 13, the variable triangular prism 26 '' is in the shape of an isosceles triangular edge prism when viewed from above.
6 ″ is a transparent glass plate 2 on each of the left, right front and back surfaces.
3 ", 23", and 23 ", and a flexible bellows portion 29 made of silicon rubber or the like is provided between these surfaces. The bellows portion 29 and the transparent plate glass 23" are hermetically sealed. A colorless and transparent silicone oil (not shown) is enclosed. Then, by fixing the large transparent glass plate 23 ″ on the rear side to the holder 21 ″ and moving the hooks 27 back and forth, the amount of silicon oil therein is constant, so that the angle of the apex of the variable triangular prism 26 ″ can be changed. That is, the variable triangular prism 26 ″ is housed in the holder 21 ″, and the rear transparent glass plate 2 is provided.
3 ″ is fixed in the holder 21 ″. The arm 28, which is movable in the front-rear direction (swingable) through the pins 28b in the holder 21 ", is a knob as a projection angle adjusting means slidable to the outside of the right side surface of the holder 21". 28A moves back and forth. By moving the knob 28A back and forth, the angle of the apex of the variable triangular prism 26 ″ can be changed.

Further, a ring 25 "is rotatably supported on the opening side of the rear portion of the holder 21" of the optical adapter device 20 ". The thread 25 is formed on the outer peripheral surface of the ring 25". The screw portion 25 can be screwed onto the mounting screw portion 11 of the video camera device 1.
Further, an opening 21c serving as an image capturing portion is entirely opened on the front surface of the holder 21 "of the optical adapter device 20". A wide-angle adapter (wide-angle means) 30 ″ can be fitted in the opening 21c so as to be detachable (detachable), and the optical adapter device 20 ″ is provided.
It can be used together with. The wide-angle adapter 30 ″ is composed of a rectangular frame portion 31 and a concave lens (wide-angle means) 32 that is fitted into an opening portion of the frame portion 31 which is open on the front side.

Then, the wide angle adapter 3 fitted in the front side of the holder 21 "of the optical adapter device 20"
It is very convenient to change the angle of the apex of the variable triangular prism 26 ″ according to the subject, the shooting place and the purpose as a video camera for the technology disclosed in the above-mentioned Japanese Patent Laid-Open No. 59-30390 by removing 0 ″. It can be used for Also,
In conjunction with the video camera autofocus device,
The position of the subject and the angle of the prism may be interlocked and automatically adjusted.

As described above, according to each of the above embodiments, the wide angle is first set and the left and right images are taken in next.
Next, it seems that if the wide angle is set, it will have the same optical effect, but in this case it is necessary to make the left and right image capturing parts that are large enough to cover wide-angle images, etc. Although it becomes very large, in each of the above-described embodiments, since the wide angle is first set and the image is taken, the image capturing unit can be made small.

Further, in the field sequential stereoscopic signal as a stereoscopic 3D stereoscopic video signal, a part of the stereoscopic picture is cut out and enlarged to form a single image, which results in zooming. In each of the above embodiments, the wide-angle means is first used to widen the image and then the image is taken. Therefore, the angle of view can be kept as it is even if the image is enlarged to form a three-dimensional stereoscopic video signal. Especially in stereoscopic images, if there is something to compare with the foreground, middle view, and distant view, the stereoscopic effect often appears, and the zoomed image has poor stereoscopic effect, but the wide-angle means does not change the angle of view. Shooting is now possible, and powerful stereoscopic images with a wide-angle stereoscopic effect are now available.

[0039]

As described above, according to the video camera apparatus for photographing of the three-dimensional stereoscopic image signal converting apparatus of the present invention and the optical adapter apparatus used for the apparatus, first, the wide angle means is used to widen the angle before photographing. Since this is done, the angle of view can be left unchanged even if it is expanded to create a 3D stereoscopic video signal. Especially in stereoscopic images, if there is something to compare with the foreground, middle view, and distant view, the stereoscopic effect often appears, and the zoomed image has poor stereoscopic effect, but the wide-angle means does not change the angle of view. It is possible to shoot and obtain powerful stereoscopic images with a wide-angle stereoscopic effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a video camera device and a three-dimensional stereoscopic video signal conversion device according to a first embodiment of the present invention.

FIG. 2 shows a video camera body of the video camera device;
FIG. 3 is a perspective view of an optical adapter device and a wide-angle adapter for stereoscopic photography, which is detachably attached to the video camera body.

FIG. 3 is a block diagram of a stereoscopic system including the video camera device, a three-dimensional stereoscopic video signal conversion device, a VTR, and a television receiver.

FIG. 4A is an explanatory diagram of a background photographed by the video camera device, FIG. 4B is an explanatory diagram when cutting left and right images photographed by a CCD of the video camera device, and FIG. Explanatory drawing of the image for the left eyes which was cut and expanded, (D) is explanatory drawing of the image for the right eyes which was cut and expanded.

FIG. 5 is a perspective view of a video camera main body of the video camera device of the second embodiment, an optical adapter device for stereoscopic photography and a wide-angle adapter that are attached to and detached from the video camera main body.

FIG. 6 is a perspective view showing a separated state of a video camera main body of the video camera device of the second embodiment, an optical adapter device for stereoscopic photography that is attached to and detached from the video camera main body, and a wide-angle adapter.

FIG. 7A is an explanatory diagram of a background photographed by the video camera device according to the second embodiment, and FIG. 7B is a diagram for explaining left and right images photographed by a CCD of the video camera device. The figure, (C) is the explanatory view of the image for the left eye which was cut out and enlarged, and the explanatory view of the image for the right eye which was cut out and enlarged.

8A is an explanatory diagram showing a state in which a left-eye image and a right-eye image are simultaneously displayed on the screen by the video camera device of the second embodiment, and FIG. 8B is a parallel method. Explanatory drawing which shows the state of stereoscopic vision, (C) is explanatory drawing which shows the state of stereoscopic vision by printing.

FIG. 9 is a perspective view of a video camera device according to a third embodiment and an optical adapter device for stereoscopic photography that is attached to and detached from a video camera body of the video camera device.

FIG. 10 is a cross-sectional view of the main parts of the optical adapter device according to the third embodiment.

FIG. 11 is a perspective view of a video camera body of a video camera device of a fourth embodiment, an optical adapter device for taking a stereoscopic photograph and a wide-angle adapter which are attached to and detached from the video camera body.

FIG. 12 is a perspective view showing a state where the optical adapter device of the fourth embodiment and the wide-angle adapter are separated.

FIG. 13 is an enlarged perspective view of a main part of the optical adapter device according to the fourth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Video camera device, 20, 20 ', 20 "... Optical adapter device 21,21', 21" ... Image capturing part, 26 ', 26 "... Triangular prism (optical member), 3
2,32L, 32R ... wide section, 40 ... three-dimensional video signal converting apparatus, M _L, M _R ... mark.

Claims (17)

[Claims] 1. A stereoscopic 3D stereoscopic video signal in which an image for one eye is placed on the right half of the screen and an image for the other eye is placed on the left half of the screen. The right and left screens of the 3D stereoscopic video signal are cut out, converted to the maximum size of the screen and enlarged, and are used as video signals dedicated to the two eyes. In the video camera device for photographing of the conversion device, a wide-angle means for widening an image is provided in an optical part for taking in the above-mentioned three-dimensional photographic type three-dimensional stereoscopic video signal. Video camera device for shooting the device. 2. A stereoscopic 3D image signal in which an image for one eye is placed on the right half of the screen and an image for the other eye is placed on the left half of the screen. The right and left screens of the 3D stereoscopic video signal are cut out, converted to the maximum size of the screen and enlarged, and are used as video signals dedicated to the two eyes. An optical adapter device used for a video camera device for photographing of a conversion device, which is capable of integrally handling an image capturing section for capturing the stereoscopic 3D image signal and a wide-angle means for widening an image. The optical adapter device is characterized in that it is detachably attached to the video camera device. 3. The optical adapter device according to claim 2, further comprising an image capturing section for capturing the stereoscopic three-dimensional stereoscopic video signal, and a wide-angle means for widening the image. An optical adapter device characterized in that the wide-angle means and the wide-angle means are configured to be detachable from each other. 4. The video camera device for photographing of the three-dimensional stereoscopic video signal conversion device according to claim 1, wherein at least an image capturing section serving as an optical part for capturing the stereoscopic photo type three-dimensional stereoscopic video signal. A pair of left and right flat mirrors are arranged diagonally with respect to the optical axis,
A video camera device for photographing of a three-dimensional stereoscopic video signal conversion device, characterized in that a pair of concave lenses serving as wide-angle means are provided in the image capturing section. 5. The optical adapter device according to claim 3, wherein at least a pair of left and right flat reflecting mirrors are arranged obliquely with respect to the optical axis in the image capturing section for capturing the stereoscopic 3D image signal. In addition, an optical adapter device characterized in that a pair of concave lenses as wide-angle means are arranged in the image capturing section. 6. The video camera device for photographing of the three-dimensional stereoscopic video signal conversion device according to claim 1, wherein a central portion of an image capturing portion which is an optical portion for capturing the stereoscopic photo type three-dimensional stereoscopic video signal. A video camera device for photographing of a three-dimensional stereoscopic video signal conversion device, wherein a wedge-shaped triangular prism as viewed from above is arranged, and a concave lens serving as a wide angle means is arranged in the image capturing section. 7. A stereoscopic 3D image signal in which an image for one eye is placed in the right half of the screen and an image for the other eye is placed in the left half of the screen. The right and left screens of the 3D stereoscopic video signal are cut out, converted to the maximum size of the screen and enlarged, and are used as video signals dedicated to the two eyes. An optical adapter device used in a video camera device for photographing of a conversion device, wherein a wedge seen from above is formed in a central part of an image capturing part which is an optical part for receiving the stereoscopic 3D image signal. An optical adapter device characterized in that a triangular prism of a mold is arranged and a concave lens serving as a wide angle means is arranged in the image capturing section. 8. A video for photographing by a stereoscopic 3D stereoscopic image signal conversion device in which an image for one eye is on the right half of the screen and an image for the other eye is on the left half of the screen. In the camera device, a wedge-shaped triangular prism viewed from above is arranged in the optical portion for taking in the stereoscopic 3D image signal, and the vertex angle of the triangular prism is variable. A video camera device for photographing of a three-dimensional stereoscopic video signal conversion device. 9. The optical adapter device according to claim 7, wherein the image capturing section for capturing the stereoscopic 3D image signal and the video camera device are configured to be detachable from each other. Optical adapter device. 10. The optical adapter device according to claim 7, further comprising an optical member having a variable angle type and a triangular prism shape, and the optical member has a shape of a triangular prism having a substantially isosceles triangular shape when viewed from above. , The three sides corresponding to the three sides of this triangle are made of transparent thin plates, and the triangular portions of the upper and lower surfaces are joined and sealed with a flexible one, and the transparent liquid is contained inside. The adapter device is characterized in that the angle of the apex of the isosceles triangle can be varied by arranging so as to enclose. 11. The video camera device for photographing of the three-dimensional stereoscopic video signal conversion device according to claim 8, wherein the image for one eye is on the right half of the screen, and the image for the other eye is on the left half of the screen. As for the stereoscopic photo type 3D stereoscopic video signal, the right screen and the left screen of the stereoscopic photoscopic 3D stereoscopic video signal are respectively cut and converted to the maximum size of the screen, and enlarged. A video camera device for photographing of a three-dimensional stereoscopic video signal conversion device characterized in that the video signals are respectively used for two eyes. 12. The video camera device for photographing of the three-dimensional stereoscopic video signal conversion device according to claim 11, wherein wide-angle means for widening an image in an optical portion for taking in the stereoscopic photo-type three-dimensional stereoscopic video signal. A video camera device for photographing of a three-dimensional stereoscopic video signal conversion device, characterized in that 13. The optical adapter device according to claim 9, wherein a wedge-shaped triangular prism when viewed from above is arranged in an image capturing section which is an optical section for capturing the stereoscopic 3D stereoscopic video signal. An optical adapter device characterized in that the angle of the apex of the triangular prism is variable. 14. An image for one eye is displayed on the right half of the screen,
For the stereoscopic 3D stereoscopic video signal in which the image for the other eye is placed on the left half of the screen, the above screen after cutting the right screen and the left screen of this stereoscopic 3D video signal In the video camera device for photographing of the three-dimensional stereoscopic video signal conversion device, which is converted into the maximum size of the three-dimensional image signal and enlarged and converted into a dedicated video signal for each of the two eyes. When outputting a stereoscopic image, a mark indicating that it is the approximate center of the image is placed at the approximate center of each of the right screen and the left screen. Video camera device. 15. The video camera device for photographing of the three-dimensional stereoscopic video signal conversion device according to claim 14, wherein a mark indicating that the video image is approximately at the center is electrically image-processed and added. A video camera device for photographing of a characteristic three-dimensional stereoscopic video signal conversion device. 16. The video camera device for photographing of the three-dimensional stereoscopic image signal conversion device according to claim 14, wherein a mark indicating that the image is substantially at the center is added by optical means. A video camera device for photographing a 3D stereoscopic video signal conversion device. 17. An image for one eye is displayed on the right half of the screen,
In the optical adapter device for stereoscopic photography that can be attached to the imaging lens of the imaging device to capture the stereoscopic video image with the image for the other eye on the left half of the screen, the right screen, An optical adapter device characterized in that a mark for displaying the center of each left screen is optically displayed on the screen.