JPH04355591A - Stereoscopic photography still video cemera - Google Patents

Abstract

PURPOSE:To provide the still video camera able to record 3-dimension information. CONSTITUTION:Two camera optical systems comprising an image pickup lens 1, a shutter 2 and an image pickup lens 3, a shutter 4 are arranged at a prescribed interval to the left and right and a CCD 5 or a CCD 6 is arranged to the left right image forming position of the same camera optical system. The left and right CCDs 5, 6 pick up right eye and left eye use picture signals. The left right picture signals obtained in this way are given to a process circuit 8 or 12, from which a recording signal is obtained and written onto a recording tack of a floppy disk 15 separately by using two magnetic heads 10,14.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still video camera capable of recording three-dimensional information.

0002

[Prior Art] Current still video cameras can print images using a photographic system combined with a video printer.
Currently, the image quality is inferior to that of silver halide cameras. However, still video cameras have the advantage of being able to record image data. This image data is recorded by converting an image signal captured by a CCD into a video signal by opening and closing a shutter, and then modulating the video signal and recording it onto a recording track on a floppy disk. 2 for recording to floppy disk
Two magnetic heads are used, and in the case of field recording, even fields and odd fields constituting one frame can be written simultaneously onto a pair of tracks.

0003

[Problems to be Solved by the Invention] However, the still video camera according to the above-mentioned conventional technology targets the same flat image as the silver halide camera, although the output format is different, and in terms of the ability to record image data, the 8mm There are video cameras and DATs (digital audio tape recorders) that can record image data, but these are also intended for flat images. As described above, there was no conventional device that could take stereoscopic images and record data.

[0004] The present invention was made against the background of the situation where there is a desire for technology that can only be achieved with still video cameras by taking advantage of the characteristics of still video cameras, which are small and highly portable. The purpose is to provide a photo still video camera.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the stereoscopic still video camera of the present invention has the following features:
Two camera optical systems are placed on the left and right at a predetermined interval, an image sensor is placed at each of the left and right imaging positions of the camera optical system, and left and right image signals obtained from the image sensor are sent to two magnetic heads. It is characterized in that it is equipped with a recording circuit that writes to the left and right recording tracks of the magnetic disk separately using the magnetic disk.

[0006]

[Operation] The stereoscopic still video camera of the present invention has two
A set of camera optical systems and image pickup devices are arranged on the left and right, and one side captures an image for the left eye, and the other side captures an image for the right eye. By recording this on two recording tracks on the magnetic disk constituting one frame using two magnetic heads for recording one frame separately on the left and right sides, it is possible to record a three-dimensional image. By reproducing the image data having these left and right parallaxes so that the image for the left eye is viewed with the left eye and the image for the right eye is viewed with the right eye, a stereoscopic image is reproduced.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the still video camera of this embodiment, two camera optical systems, one consisting of a photographing lens 1 and a shutter 2, and the other consisting of a photographing lens 3 and a shutter 4, are arranged on the left and right at a predetermined interval, and each shutter 2, CCDs (charge-coupled devices) 5 and 6 are respectively arranged as image detection devices at the imaging positions of the subject through the image sensor 4. For the image signal captured by the right eye image CCD 5 on the right side facing the subject,
After being amplified through an amplifier 7, the signal is input to a recording process circuit 8. The recording process circuit 8 converts the image signal into a video signal, applies modulation to create a recording signal, amplifies the recording signal through an amplifier 9, and then applies it to the magnetic head 10. Similarly, the left eye image CCD on the left side facing the subject
The image signal captured in step 6 is amplified through an amplifier 11 and then input to a recording process circuit 12 . The recording process circuit 12 converts the image signal into a video signal,
A recording signal is created by applying modulation, and after being amplified through an amplifier 13, it is applied to a magnetic head 14. These two magnetic heads 10 and 14 simultaneously write left and right image recording signals on two recording tracks of the floppy disk 15. Reference numeral 16 denotes a system controller that comprehensively controls the entire still video camera, and in the configuration shown in FIG. The recording operation on the floppy disk 15 is controlled by starting the floppy disk 15, etc.

Next, the external appearance of the still video camera of the above embodiment is shown in a perspective view in FIG. In this embodiment, the imaging lens 1, the shutter 2, and the CCD 5 for the right eye image are arranged on one side of the twin body shape, and the imaging lens 3, the shutter 4, and the CCD 5 for the left eye image are arranged on the other side.
Place CD6 and press shutter button 1 on the upper right side, for example.
Place 7. Although not shown in the figure, the recording process circuits 8 and 1 are installed in a space that does not interfere with each camera optical system.
2 and a drive mechanism for the floppy disk 15 are housed therein.

FIG. 3 is a diagram showing the format of the floppy disk. This figure shows a partially cutaway view of a case (diskette) 15a of a floppy disk 15. A floppy disk (also referred to as a flexible disk) 15 is a flexible circular magnetic recording medium, and is rotatably housed within a diskette 15a. 15 floppy disks like this
A plurality of recording tracks are formed, and at the same time, the recording signal for the right eye image is recorded on one recording track a by the two magnetic heads described above, and at the same time, the recording signal for the left eye image is recorded on the adjacent recording track a+1. A recording signal is recorded.

The operation and effects of the embodiment configured as above will be described.

The still video camera of this embodiment has two sets of camera optical systems and CCDs 5, 6 arranged on the left and right, and images one subject simultaneously with the left and right CCDs 5, 6.
Obtain electrical image signals. These left and right image signals obtained from different viewpoints of one object are separately taken in and recorded on separate recording tracks on a floppy disk 15 by two magnetic heads 10 and 14. The left and right images above correspond to images seen with the right eye and images seen with the left eye, respectively, and are played back separately so that, for example, the right eye image is viewed with the right eye, and the left eye image is viewed with the left eye. By doing so, a three-dimensional image can be reproduced, so according to this embodiment, three-dimensional information can be photographed and electrically recorded.

In this embodiment, two magnetic heads for frame recording can be used as they are in a conventional still video camera, and since there are two gaps, they can be used simultaneously for instantaneous shooting. and floppy disk 1
5, it is not necessary to store signals once, and the circuit scale can be reduced.

To reproduce the left and right image signals recorded on the floppy disk 15, the two magnetic heads 10 and 14 used for writing are switched to reproduction, and the left and right image signals recorded on the two recording tracks are used. Reproduce image data on the left and right sides simultaneously or alternately.

One method for reproducing a stereoscopic image is to use a stereoscopic photographic display 21 and 3D glasses 2 shown in FIG.
A method using 2 is known. In this system, the signal recorded on the floppy disk reproduced above is demodulated into a video signal, and, for example, the right eye image is displayed on the even field of the display 22, and the left eye image is displayed on the odd field. The 3D glasses 22 are composed of a liquid crystal shutter, and in synchronization with the display of each field, the left eye side is controlled to be in a closed state and the right eye side is in an open state when an even number field is displayed, and controlled to the opposite state when an odd number field is displayed. be done. In this way, each image for the right eye and the left eye can be provided independently to the right eye and left eye in a time-sharing manner, and due to the effect of the afterimage of the eyes, the depth is equivalent to actually viewing the object with both eyes. It can give a feeling.

Another method for reproducing stereoscopic images is a projector method. This uses two projectors, with one projector displaying an image for the right eye and the other projector displaying an image for the left eye on the same screen through polarizing plates orthogonal to each other. When viewing this, the right and left eye images are viewed through polarized glasses that are orthogonal to each other, so that the right eye can see the right eye image and the left eye can see the left eye image independently. As a result, a three-dimensional image can be reproduced in the same manner as above. Furthermore, a stereoscopic image can also be reproduced by outputting to a hologram 30 shown in FIG. 5 as another example of a stereoscopic photographic display.

[0017] It goes without saying that the present invention can be applied in various ways according to its gist and can be implemented in various ways.

[0018]

[Effects of the Invention] As is clear from the above explanation, according to the stereoscopic still video camera of the present invention, it is possible to easily and easily take stereoscopic pictures, which have only been seen until now, and to create three-dimensional images. It becomes possible to record it as data. Moreover, because instantaneous photography can be performed, there is an advantage that in the future, with technological advances (particularly stereoscopic image output devices), it will also be possible to photograph moving images. Also,
By being used in the display and medical fields, it has the advantage of contributing to the development of other technical fields.

[Brief explanation of the drawing]

[Fig. 1] Block diagram showing one embodiment of the present invention

[Fig. 2] A perspective view showing the appearance of the above embodiment.

[Figure 3] Diagram showing the format of the floppy disk used in the above example

[Figure 4] External view of a stereoscopic photographic display that reproduces stereoscopic images

[Figure 5] External view of another stereoscopic photographic display that reproduces stereoscopic images

[Explanation of symbols]

1, 3...imaging lens, 2,4...shutter, 5,6...CC
D, 7, 11... Amplifier, 8, 12... Recording process circuit,
9, 13... Amplifier, 10, 14... Magnetic head, 15... Floppy disk, 16... System controller, 17
...Shutter button.

Claims (1)

[Claims] Claim 1: Two camera optical systems are arranged on the left and right at a predetermined interval, and an image sensor is arranged at each of the left and right imaging positions of the camera optical system, and left and right image signals obtained from the image sensor are arranged. A stereoscopic photographic still video camera comprising a recording circuit that separately writes information into left and right recording tracks of a magnetic disk using two magnetic heads.