JPH08223605A - Moving picture photographing device - Google Patents

Abstract

PURPOSE: To provide the moving picture photographing device which can selectively photograph two-dimensional and three-dimensional images and simplifies its configuration. CONSTITUTION: This device is provided with a zoom photographic optical system 2 having plural focal distances, single focal photographic optical system 1 having a single focal distance, and two-dimensional/three-dimensional selection switch 7 as a stereoscopic photographic means for enabling three-dimensional photography when the focal distances of the zoom photographic optical system 2 and the single focal photographic optical system 1 are matched. Then, first and second video processing circuits 4 and 5 are provided as image processing means for practically matching the focal distance of the zoom photographic optical means 2 with the focal distance of the single focal photographic optical system 1 in the case of stereoscopic photography by performing image processing to image data provided by any optical system corresponding to digital zoom when there is no focal distance matched with the focal distance of the single focal photographic optical system 1 among the focal distances of the zoom photographic optical system 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving picture photographing apparatus, and more particularly to a moving picture photographing apparatus having a pair of photographing optical systems and capable of three-dimensional photographing.

[0002]

2. Description of the Related Art In recent years, a pair of photographing optical systems, for example, a zoom photographing optical system having a plurality of focal lengths and a single-focus photographing optical system having a single focal length, are provided to widen the photographing range, A pair of shooting optics are used to shoot at the same time, and the video display during playback is devised.
Various proposals have been made for a moving image photographing apparatus that performs three-dimensional photographing using a pair of photographing optical systems having the same focal length.

For example, a moving picture photographing apparatus disclosed in Japanese Patent Laid-Open No. 5-48959 is a moving picture photographing apparatus having a pair of photographing optical systems including a zoom photographing optical system having a zoom function and a wide-angle single-focus photographing optical system. In addition, the present invention relates to a changeover switch in which a drive switch of the zoom photographing optical system and an image changeover switch of the zoom photographing optical system and the wide-angle single-focus photographing optical system are integrally formed.

This moving image photographing apparatus is provided with a pair of photographing optical systems including a zoom photographing optical system and a wide-angle single-focus photographing optical system, so that a wider-angle side image than that obtained by the zoom photographing optical system can be obtained. The wide-angle single-focus shooting optical system described above can be obtained, and the image pickup device (hereinafter referred to as CCD) is arranged in each of the shooting optical systems. Various ways of use can be considered.

On the other hand, "Video Information Industrial" magazine 1
In the January 1988 issue (pages 61 to 65), a moving image capturing device (stereoscopic image capturing camera 1) having a pair of photographing optical systems for obtaining a stereoscopic image and capturing a three-dimensional image (stereoscopic image) is disclosed. There is a disclosure regarding a body type VTR).
In this moving image photographing apparatus, photographing optical systems composed of a pair of monofocal lenses and the like are arranged side by side at substantially the same intervals as the human eye, and each image pickup section is provided with a microminiature camera head section using a CCD or the like. The three-dimensional image is recorded by alternately recording the respective image signals obtained by this in the VTR.

[0006]

However, the means disclosed in the above-mentioned Japanese Patent Laid-Open No. 5-48959 relates to the changeover switch of the moving image photographing apparatus having the pair of photographing optical systems as described above, Moreover, this moving image capturing apparatus is an apparatus for obtaining a two-dimensional image.

That is, the pair of photographing optical systems, and
The CCD or the like provided in each photographing optical system is provided for the purpose of photographing a two-dimensional image and devising a display screen at the time of reproducing the obtained image. is there.

Therefore, even if one tries to obtain a three-dimensional image by using this moving image photographing apparatus, the focal length of the wide-angle single-focus photographing optical system is set to a wider angle side than the range of the focal length of the zoom photographing optical system. Therefore, the magnification of each image and the photographing position (arrangement of the photographing optical system) obtained by the pair of photographing optical systems are not suitable for obtaining a three-dimensional image. There will be a gap between the pair of two-dimensional images obtained by. That is, in this state, a 3D image cannot be obtained.

On the other hand, the above-mentioned "video information industrial"
Since the means disclosed in the January 1988 issue of the magazine (pages 61 to 65) is a moving image photographing apparatus dedicated to obtaining a three-dimensional image as described above, each of the pair of photographing optical systems is The focal lengths are set to be the same.

Therefore, when a general two-dimensional image is photographed by using only one of the pair of photographing optical systems, the other photographing optical system which is not used is completely useless. Will result in.

It is an object of the present invention to provide a moving image photographing apparatus having a pair of photographing optical systems, which can selectively photograph a two-dimensional image and a three-dimensional image and has a simple structure. To provide.

[0012]

A moving image photographing apparatus according to the present invention comprises a zoom photographing optical system having a plurality of focal lengths, a single focus photographing optical system having a single focal length, a zoom photographing optical system and a single focus. A stereoscopic photographing means for enabling three-dimensional photographing when the focal lengths of the photographing optical system and the focal length of the zoom photographing optical system are equal to the focal length of the single focal photographing optical system; When there is no match,
Image processing is performed by digital zooming image data obtained from one of the optical systems, and has an image processing unit that substantially matches the focal length of the zoom photographing optical system and the focal length of the single-focus photographing optical system during stereoscopic photographing. .

Further, in a normal photographing state, the zoom photographing optical system and the single-focus photographing optical system are arranged so that their optical axes are arranged in a substantially horizontal direction at a predetermined interval.

[0014]

The three-dimensional photographing means performs three-dimensional photographing when the focal lengths of the zoom photographing optical system and the single-focus photographing optical system coincide with each other, and the image processing means performs single-focus photographing within the focal length of the zoom photographing optical system. When there is no match with the focal length of the optical system, the image data obtained from one of the optical systems is subjected to image processing by digital zoom, and when performing stereoscopic shooting, the focal length of the zoom shooting optical system and the single focus shooting optical Match the focal length of the system.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are schematic perspective views showing the outer appearance of a moving image capturing apparatus according to an embodiment of the present invention.

As shown in FIGS. 1 and 2, in the moving image photographing apparatus of this embodiment, a pair of photographing optical systems, that is, a zoom lens 2 which is a zoom photographing optical system having a plurality of focal lengths, and a single unit. And a single-focus lens 1 which is a single-focus photographing optical system having a focal length of, and the optical axes of the pair of photographing optical systems are arranged so as to be aligned in a substantially horizontal direction in a normal photographing state. .

Generally, in order to perform three-dimensional photographing, the arrangement of the pair of photographing optical systems in the moving image photographing apparatus is
It is necessary to arrange them in a substantially horizontal direction and set the base line length to be substantially equal to the human eye width.

That is, when the pair of photographing optical systems is not arranged in a substantially horizontal direction, the vertical position shift occurs in each image obtained by the pair of photographing optical systems. If the baseline lengths of the pair of photographing optical systems are not set to match the human eye width to some extent, the stereoscopic effect when viewed by a human and the stereoscopic effect in a three-dimensional image are obtained. Will be different.

Therefore, the zoom lens 2 and the monofocal lens 1 constituting the pair of photographing optical systems are, for example, on both sides of the deck portions 17 and 17a having a recording / reproducing circuit and the like.
The respective optical axes are arranged so as to be aligned in a substantially horizontal direction.

Of the above-mentioned pair of photographing optical systems,
A finder unit 15 is provided in one of the photographing optical systems, and the exterior parts of the deck units 17 and 17a are
The power supply battery 18, the microphone parts 16 and 16a, etc. are arranged.

With such a structure, the outer surface of the moving picture photographing apparatus has a reduced number of irregularities to obtain good holding and the deck section 1
By disposing the pair of photographing optical systems on both ends of 7, 17a, the space between the pair of photographing optical systems arranged in the substantially horizontal direction can be effectively used, and It is configured to secure the baseline length of the photographing optical system.

FIG. 3 is a block diagram showing the outline of the internal structure of the moving image photographing apparatus according to the first embodiment of the present invention.

As shown in FIG. 3, the moving picture photographing device is
A pair of photographing optical systems, that is, a monofocal lens 1 that is a single-focus photographing optical system, a zoom lens 2 that is a zoom photographing optical system, and a CCD or the like arranged behind each of the pair of photographing optical systems. The image pickup devices 3a and 3b and the first image processing circuit 4 which is an image processing means for processing an image taken by the image pickup device 3a on the side of the single focus lens 1.
A single focus lens drive control circuit 6a for controlling the AF and aperture of the single focus lens 1, and the zoom lens 2
Second image processing circuit 5 which is an image processing means for processing an image captured by the image pickup device 3b on the side, and a zoom lens for driving the zoom lens 2 in order to perform a zooming operation for moving a plurality of focal lengths. Drive control circuit 6
b and this video recording device (camera section, deck section, etc.)
CPU10 which is a control circuit for controlling the whole and this CP
It is a stereoscopic photographing means that receives a signal output from U10 and selects whether the video signals from the first video processing circuit 4 and the second video processing circuit 5 are two-dimensional video or three-dimensional video. A two-dimensional / three-dimensional selection switch (SW) 7, a two-dimensional video recording / reproducing circuit 8 for recording and reproducing two-dimensional video, a three-dimensional video recording / reproducing circuit 9 for recording and reproducing three-dimensional video, Power on / off (O
It is composed of an operation switch (SW) 11 for performing FF) and the like, and a two-dimensional / three-dimensional selector switch (SW) 12 for performing selection switching between two-dimensional imaging and three-dimensional imaging.

In the moving image photographing apparatus of the first embodiment having the above-mentioned structure, the operation for photographing will be described below with reference to the flowchart of FIG.

In the first embodiment, the case where there is a portion where the focal lengths of the zoom lens 2 and the single focus lens 1 are the same will be exemplified. That is, of the above pair of photographing optical systems, the focal length f of the zoom lens 2 which is the zoom photographing optical system is 6 to 48 mm, and the focal length f of the single focus lens 1 which is the single focal photographing optical system is 6 mm. It is an example.

As shown in FIG. 4, first, in the case where two-dimensional photographing is performed in the moving picture photographing apparatus of the first embodiment, the photographer performs the operation S in step S1.
When W11 is operated, the main power source is turned on (ON), and the two-dimensional / three-dimensional switching SW12 is switched to switch to the two-dimensional imaging side. To the next step S2.

In step S2, an output signal from the CPU 10 is used to select which one of the pair of photographing optical systems, that is, the monofocal lens 1 or the zoom lens 2 is used for photographing. .

In step S2, if the single focus lens 1 is selected, the process proceeds to step S3, while if the zoom lens 2 is selected, step S3.
Go to step 4.

In step S2, when the single focus lens 1 is selected and the process proceeds to step S3, the image is output through the first image processing circuit 4 in step S3, and the next step S5 is performed. Proceed to.

Then, in step S5, after the video recording and reproducing operations are performed by the two-dimensional video recording / reproducing circuit 8, the series of sequences is ended.

On the other hand, when the zoom lens 2 is selected in step S2 and the process proceeds to step S4, image output is performed via the second image processing circuit 5 in step S4, and the next step is performed. Proceed to S5.

Then, in step S5, after the video recording and reproducing operation is performed by the two-dimensional video recording / reproducing circuit 8, the series of sequences is ended.

Next, when three-dimensional shooting is performed in the moving picture shooting apparatus of the first embodiment, the photographer operates the operation SW11 in step S1 as in the case of the two-dimensional shooting. , Main power is on (O
N), and by switching to the 3D shooting side by the switching operation of the 2D / 3D switch SW12,
A signal indicating that three-dimensional imaging is performed is transmitted to the CPU 10, and the process proceeds to the next step S6.

In step S6, the zoom lens 2 is driven (zoomed) by the zoom lens drive control circuit 6b in response to the output signal from the CPU 10, and the same focal length as that of the single focus lens 1, that is, f = 6 mm, the process proceeds to the next step S7.

Then, in step S7, the video signals picked up by the image pickup devices 3a and 3b of the single focus lens 1 and the zoom lens 2, respectively, are the first and the above.
Image processing is performed by the second video processing circuits 4 and 5 and output, and the process proceeds to step S8.

In step S8, the video signal is
Video recording and reproducing operations are performed by the three-dimensional video recording / reproducing circuit 9, and a series of sequences is completed.

As described above, according to the first embodiment, when shooting a moving image, the photographer (the operator of the moving image photographing apparatus or the like) uses the two-dimensional / three-dimensional switching SW 12 to switch between the two-dimensional states. The selection is switched between shooting and three-dimensional shooting. At this time, the above two-dimensional / 3
When the dimension switch SW12 is switched to the three-dimensional photographing side, the focal lengths of the single-focus lens 1 which is the single-focus photographing optical system and the zoom lens 2 which is the zoom photographing optical system are made to coincide with each other. While enabling three-dimensional shooting,
When the 2D / 3D switching SW 12 is switched to the 2D shooting side, 2D shooting can be performed by the shooting optical system of either the single focus lens 1 or the zoom lens 2.

Therefore, two-dimensional photographing and three-dimensional photographing can be performed by the switching operation of the two-dimensional / three-dimensional switching SW12.
It can be easily and selectively performed.

In addition, the deck section 17 of the moving picture photographing device,
By arranging a pair of photographing optical systems including the single-focus lens 1 and the zoom lens 2 side by side in a substantially horizontal direction on both ends of 17a, the baseline length of each photographing optical system can be secured. At the same time, the space between the pair of photographing optical systems can be effectively used.

Since the outer surface of the above-mentioned moving picture photographing device has a structure in which the irregularities are reduced, it is possible to obtain good holding at the time of photographing.

FIG. 5 is a block diagram showing the outline of a moving picture photographing apparatus according to the second embodiment of the present invention. Since the moving image capturing apparatus of the second embodiment has the same configuration as that of the first embodiment described above, detailed description of the configuration will be omitted by giving the same reference numerals, and the description of the first embodiment will be made. Shall be referred to.

In the second embodiment, the case where the focal length of the zoom lens 2 does not match the focal length of the single focus lens 1 will be exemplified. That is,
Of the above pair of photographing optical systems, the case where the focal length f of the zoom lens 2 which is the zoom photographing optical system is 6 to 48 mm and the focal length f of the single focus lens 1 which is the single focal photographing optical system is 5 mm is exemplified. ing. Therefore, the operation thereof is basically the same as that of the above-described first embodiment, so that the flowchart of FIG. 4 will be referred to.

First, in the case where two-dimensional shooting is performed in the moving image shooting apparatus of the second embodiment, the same operation as that of the first embodiment is performed, and the detailed description thereof is omitted. To do.

Next, in the case where the three-dimensional photographing is performed in the moving picture photographing apparatus of the second embodiment, the effect that the three-dimensional photographing is carried out in step S1 of FIG. 4 similarly to the above-mentioned first embodiment. Is selected and the process proceeds to step S6.

In step S6, the zoom lens 2 is driven (zoomed) by the zoom lens drive control circuit 6b according to the output signal from the CPU 10, and the focal length f of the shortest focus side of the zoom lens 2 is f = It is set to 6 mm, and the process proceeds to the next step S7.

In step S7, an X signal (for example, a signal indicating that image processing is required) from the CPU 10 is transmitted to the first image processing circuit 4, and the image obtained by the monofocal lens 1 is displayed. Image processing such as digital zoom is performed.

The image processing such as digital zoom performed here means that a video signal picked up by the image pickup device 3a of the monofocal lens 1 is temporarily stored in a memory or the like provided in the first video processing circuit 4. Image data processing such as clipping and enlarging information of an arbitrary portion of this video signal, and the image data processing of the video signal at this time is performed by the focal length f = of the zoom lens 2.
Image processing is performed so as to be almost the same as the image obtained by 6 mm.

Then, for the subsequent sequence, the same processing as that of the above-described first embodiment is performed, and therefore the description thereof will be omitted.

As described above, in the second embodiment described above, after the zoom lens 2 is driven to the wide-angle side focal length f = 6 mm, the above single lens is made to match the image obtained by this zoom lens 2. Although the image processing of the image obtained by the focusing lens 1 is performed, on the contrary, the image of the image obtained by the zoom lens 2 matches the image obtained by the single focusing lens 1. The same applies when the processing is performed by the second video processing circuit 5.

That is, as a modified example of the second embodiment (where there is no portion where the focal lengths of the zoom lens 2 and the single focus lens 1 match), of the pair of taking optical systems,
Focal length f = of the zoom lens 2 which is the zoom photographing optical system
6-48 mm, single focus lens 1 which is a single focus shooting optical system
The operation of the above-described moving image capturing apparatus when the focal length f of 60 mm is 60 mm will be described below.

When three-dimensional photographing is performed in the moving picture photographing apparatus of this modified example, as in the case of the first and second embodiments described above, when the selection to perform the three-dimensional photographing is made,
The zoom lens 2 is driven (zoomed) by the zoom lens drive control circuit 6b in accordance with an output signal from the CPU 10 to set the focal length f of the longest focus side of the zoom lens 2 to f = 48 mm.

Next, a Y signal (for example, a signal indicating that image processing is required) from the CPU 10 is transmitted to the second image processing circuit 5, and the digital zoom of the image obtained by the zoom lens 2 is performed. Image processing is performed.

The image processing such as digital zoom performed here means that a video signal picked up by the image pickup device 3b of the zoom lens 1 is temporarily stored in a memory or the like provided in the second video processing circuit 5. Image data processing such as cutting out or enlarging information of an arbitrary portion of this video signal, and the image data processing of the video signal at this time is performed by the focal length f =
Image processing is performed so as to be almost the same as the image obtained by 60 mm.

The image on the side of the zoom lens 2 which has been subjected to image processing such as digital zoom by the second image processing circuit 5 and the image obtained by the monofocal lens 1 are the three-dimensional image recording / reproducing circuit. 9 is output, and recording / reproduction is performed.

As described above, according to the second embodiment, the focal lengths of the single focus lens 1 which is the single focus shooting optical system and the focal lengths of the zoom lens 2 which is the zoom shooting optical system do not match. Also in the case, the image obtained by either one of the pair of photographing optical systems is subjected to image processing such as digital zoom so that it matches the image obtained by the other photographing optical system. By doing so, it becomes possible to output as a three-dimensional video and perform recording and reproduction.

Therefore, for two-dimensional photography, the focal lengths of the zoom lens 2 and the monofocal lens 1 can be set in a wide range to widen the use of photography, and the focus of the zoom lens 2 can be expanded. Single focal length lens 1
Even if there is no match with the focal length of, the image data obtained from one of the optical systems is subjected to image processing by digital zoom, and when stereoscopic shooting is performed, the Since the focal length and the focal length of the single focus lens 1 are made to coincide with each other, it is possible to easily carry out three-dimensional imaging.

[0057]

As described above, according to the first aspect of the invention, the focal lengths of the zoom photographing optical system having a plurality of focal lengths and the single focal length photographing optical system having a single focal length match. When doing so, it is possible to provide a moving image photographing apparatus capable of selectively photographing either one of two-dimensional photographing and three-dimensional photographing (stereoscopic photographing) by the stereoscopic photographing means.

According to the second aspect of the present invention, when the focal length of the zoom photographing optical system does not match the focal length of the single-focus photographing optical system, the image data obtained by either optical system is used. By performing image processing such as digital zoom by the image processing means, the focal length of the zoom photographing optical system and the focal length of the single-focus photographing optical system are substantially matched at the time of stereoscopic photographing, and three-dimensional photographing can be easily performed ( It is possible to provide a moving image shooting device capable of performing (stereoscopic shooting).

According to the third aspect of the present invention, the zoom photographing optical system and the single-focus photographing optical system are arranged such that the respective optical axes are arranged in a substantially horizontal direction at a predetermined interval in a normal photographing state. As a result, it is possible to obtain a moving image capturing apparatus with good holding, and it is possible to obtain an optimal image when performing three-dimensional image capturing (stereoscopic image capturing) to obtain a three-dimensional image.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing the outer appearance of a moving image capturing apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing the external appearance of a moving image capturing apparatus according to an embodiment of the present invention.

FIG. 3 is a block configuration diagram of a moving image capturing apparatus according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the moving image capturing apparatus shown in FIG.

FIG. 5 is a block configuration diagram of a moving image capturing apparatus according to a second embodiment of the present invention.

[Explanation of symbols] 1 ... Single focus lens (single focus shooting optical system) 2 ... Zoom lens (zoom shooting optical system) 3a, 3b ... Imaging device (CCD) 4 ... First image processing circuit (single focus Lens side, image processing means) 5 ... Second video processing circuit (zoom lens side, image processing means) 6a ... Single focus lens drive control circuit 6b ... Zoom lens drive control circuit 7 ... 2D / 3D selection Switch (SW; stereoscopic photographing means) 8 ... 2D video recording / reproducing circuit 9 ... 3D video recording / reproducing circuit 10 ... CPU (control circuit) 11 ... Operation switch (SW) 12 ... 2D / 3D Changeover switch (SW) 17, 17a ... Deck section

Claims (3)

[Claims] 1. A zoom photographing optical system having a plurality of focal lengths, a single focal photographing optical system having a single focal length, and a zoom photographing optical system and a single focal photographing optical system having the same focal length. A moving image photographing apparatus comprising: a stereoscopic photographing means capable of three-dimensional photographing. 2. When there is no match between the focal length of the zoom photographing optical system and the focal length of the single focus photographing optical system, the image data obtained from either optical system is subjected to image processing by digital zoom for stereoscopic photographing. The moving image photographing apparatus according to claim 1, further comprising an image processing unit that substantially matches the focal length of the zoom photographing optical system and the focal length of the single focus photographing optical system. 3. A zoom photographing optical system and a single-focus photographing optical system are arranged such that, in a normal photographing state, respective optical axes are arranged in a substantially horizontal direction at a predetermined interval.
Alternatively, the moving image capturing apparatus according to claim 2.