JPH02210434A - Stereoscopic photographing device - Google Patents

Abstract

PURPOSE:To allow anyone to easily form a stereoscopic video having a presence sense by artificially rotating an object on a rotary table, thereby imparting a parallax angle, storing video signals outputted from a camera in a field memory and forming the stereoscopic video with the stored video signals. CONSTITUTION:A control means 10 controls the speed of revolution of the rotary table 2 to the prescribed speed. The object 3 rotating while getting on the rotary table 2 is photographed with a camera 1 and the video signal of the object 3 is outputted and the fields of the video signals are counted with a field counting means. The video signals are housed sequentially in the prescribed field area of the field memory 8 at every field. The control means 10 reads out and outputs the video signals housed in the field memory 8 from the field memory 8 at every field while coupling the field with the subsequent field. Thereby, anyone can easily produce the stereoscopic video have the presence sense.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a stereoscopic photographing device used for creating stereoscopic images.

<Conventional technology> When introducing a new product, etc., a three-dimensional image is created,
It is convenient to use a video to introduce the product so that you can understand its appearance even if you do not have the actual product. This is especially useful when you cannot carry the actual product or when you want to introduce it to many people at once.

Conventionally, as a stereoscopic photographing apparatus used to create such a stereoscopic image, there is one that uses two cameras to photograph images with mutually different parallax angles.

<Problems to be Solved by the Invention> However, when performing stereoscopic imaging with the conventional stereoscopic imaging device described above, it is necessary to set the distance and parallax angle of the two cameras, and to adjust the size and vertical position of the left and right images. The disadvantage of this method is that it requires experience and specialized knowledge to capture the desired 3D images.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a stereoscopic imaging device that allows anyone to easily create realistic stereoscopic images.

<Means for Solving the Problems> In order to achieve the above object, the stereoscopic imaging device of the first invention includes a rotary table on which a subject is placed and rotates, and a rotation speed of the rotary table is controlled to a predetermined speed. a rotational speed control means; a camera for photographing a rotating subject on the rotary table and outputting a video signal of the subject; a field counting means for counting fields of the video signal; a field memory comprising a plurality of field areas for storing fields; and video signal storage means for receiving the output from the field counting means and sequentially storing the video signal field by field in a predetermined field area of the field memory. , comprising control means for reading and outputting the video signal stored in the field memory from the field memory in the order in which the fields are stored, field by field, and the field following the field as a pair. It is said that

Further, the stereoscopic photographing apparatus of the second invention includes a rotary table that rotates at a constant speed with a subject placed thereon, and one unit that photographs the rotating subject on the rotary table and outputs a video signal of the subject. A camera, a field counting means for counting fields of the video signal, a delay circuit for delaying the video signal by a set time +J and outputting the video signal, and connecting the video signal outputted from the camera to the delay circuit. video output switching means for receiving the output video signal and alternately switching and outputting one video signal and the other video signal; and a video output switching means for setting the delay time of the delay circuit, while controlling the output from the field counting means. Accordingly, the present invention is characterized in that it includes a control means for switching the video output switching means for each field.

Further, the stereoscopic photographing device of the third invention includes a rotary table that rotates at a constant speed with a subject placed thereon, and one device that photographs the subject rotating on the rotary table and outputs a video signal of the subject. a camera, a delay circuit that delays and outputs the video signal by a set time, and a control means that sets the delay time of the delay circuit, and the video signal output from the camera and the delay circuit output the video signal. A feature is that the output video signals are output separately.

<Operation> In the first invention, the rotational speed control means controls the rotational speed of the rotary table to a predetermined speed, and one camera photographs a subject rotating on the rotary table. A field counting means counts the fields of the video signal. Then, the video signal storage means receives the output from the field counting means and sequentially stores the video signal field by field in a predetermined field area of the field memory. Then, the control means reads out the video signal stored in the field memory from the field memory in the order of the stored fields, and outputs the field and the following field as a pair for each field.

In this way, a single camera is used, and the subject is rotated on a rotary table to give a pseudo parallax angle corresponding to the rotation speed, and the video signals output from the camera are sequentially stored in the field memory in their fields. Since a three-dimensional image is created from the stored video signal, anyone can easily create a realistic three-dimensional image.

Further, in the second invention, one camera photographs a subject rotating on a rotary table and outputs the video signal, and the field counting means counts the fields of the video signal and delays the rotation. The circuit outputs the video signal after being delayed by a preset time by the control means.

In response to the output from the field counting means, the control means switches the video output switching means for each field, and outputs the video signal from the camera input to the video output switching means and the delay circuit. outputs video signals alternately.

In this way, one camera is used, the subject is rotated on a rotary table, and the video signal output from the camera and the video signal delayed by the delay circuit are output alternately for each I field. As a result, a stereoscopic image having a parallax angle corresponding to the delay time of the delay circuit is created, so anyone can easily create a realistic stereoscopic image.

Further, in the third invention, one camera photographs a subject rotating on a rotary table and outputs a video signal of the subject, and the delay circuit receives the video signal by setting the video signal in advance by the control means. The video signal output from the camera and the video signal output from the delay circuit are output separately.

In this way, one camera is used, the subject is rotated on a rotary table, and the video signal output from the camera and the video signal delayed by the delay circuit are output separately. From this video signal, a stereoscopic video having a parallax angle corresponding to the delay time of the delay circuit can be created, and anyone can easily create a realistic stereoscopic video.

<Example> Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

Ru.

In FIG. 1, reference numeral I denotes a camera, which is designed to photograph a rotating subject 3 while riding on a rotating table 2 that rotates at a constant speed. A monitor 5 receives the video signal from the camera 1 and displays the video. Further, 6 is a field count circuit that counts fields of the video signal output from the camera 1, 7 is an A/D converter that converts the video signal into a digital signal, and 8 is the video signal converted to the digital signal. This field memory includes a plurality of field areas for storing fields. The number of field memory areas is equal to or greater than the number of fields of the video signal output from the camera 1 during one rotation of the rotary table 2. 10 is a control unit, C
PU10a1 program ROM10b and work RA
It is composed of Ml0c, which controls the rotary table 2 in response to instructions from the operation unit 1■, and controls the video signal for each field in the field memory 8 based on information from the field count circuit 6. Controls writing and reading. Further, 13 is a D/A converter that converts the video signal read from the fee memory 8 into an analog signal, and 14 is a VTR that records the video signal output from the D/A converter 13. be.

In the above configuration, when the start key on the operation unit 11 is pressed, the turntable 2 rotates at a constant speed, and the image captured from the camera l is converted into a digital signal by the A/D converter 7.
It is recorded in the field memory 8. At this time, the control unit I
O stores the image in a predetermined field area of the field memory 8 based on the information from the field count circuit 6. Further, in the operation section 11, one rotation of the turntable 2 is considered as one pattern, and the number of patterns to be recorded is inputted, and by pressing the record key on the operation section 11, the control section 10 records each pattern. The input/output of the field memory 8 is switched, and the video stored in the field memory 8 is outputted to the VTR 14 via the D/A converter 13.

Figure 2 shows the video captured by the above camera l on the VTR14.
FIG. 3 is a diagram illustrating that the image is output as a stereoscopic image.

Figure 2 (a) shows the camera 1 capturing images from a rotating subject; it starts shooting from ■, rotates to position ■, and then shoots at position ■. Which indicates that. The two images taken at positions adjacent to each other differ by the parallax angle corresponding to the rotation speed. That is, the faster the rotation speed, the smaller the parallax angle, and the slower the rotation speed, the larger the parallax angle. If the parallax angle is small, the effect of stereoscopic images will be reduced, and if it is large, the left and right images will not match and will appear double. By adjusting the rotation speed (parallax angle) suitable for each subject using the operation unit 11, it is possible to reproduce an effective stereoscopic image suitable for each subject. The images captured by the camera 1 are sequentially stored in the field memory as shown in FIG. 2(b). Then, when the rotary table 2 rotates once, an image corresponding to one rotation consisting of n fields is stored in the field memory 8. The image for this one rotation is
As shown in FIG. 2(c), for each I field, the field and the following field are output as a pair from the field memory to the VTRI 4 in the order in which they are stored. Zunawachi, ■ and ■,
■ and ■, ■ and ■, etc. are recorded on the VTR 14. Then, by reproducing the video recorded in this V'I'Rl 4, the stereoscopic video can be changed.

Ru.

In FIG. 3, reference numeral 31 denotes a camera, which is configured to photograph a rotating subject 33 while riding on a rotating table 32 that rotates at a constant speed. 35 is a monitor that receives a video signal from the camera 31 and displays the video. Further, 36 is a field count circuit 37 that counts fields of the video signal output from the primary camera 31.
38 is a delay circuit that delays and outputs the video signal by a set time; 38 receives the video signal output from the camera 31 and the video signal output from the delay circuit 37; The video output changeover switch 39 that alternately switches and outputs the other video signal is a VTR that stops recording the video signal output from the two-layer video output changeover switch.

Further, 40 is a control unit, which is composed of a CPU 4-Oa, a program ROIVL 40b, and a work RAM 40c, and receives instructions from an operation unit 41 to control the rotating table 32 and the delay time of the delay circuit 37. In response to the output from the field count circuit 36, the video output switching means 38 is switched for each field.

In the above configuration, the delay time of the delay circuit 37 is set in advance using the operation unit 41. Next, without pressing the start key on the operation unit 41, the turntable 32 rotates at a constant speed, and the image captured from the camera 31 is input to the input terminal 38a of the image output changeover switch 38 and the delay circuit 37. Ru. The changeover switch 38 is initially connected to the input terminal 38b connected to the output side of the delay circuit 37, and outputs the video to the VTR 39 only after the set delay time. Based on the information from the field count circuit 36, the control unit 40 switches the changeover switch 38 between the input terminal 38a side and the input terminal 3 side for every l field (that is, for every vertical synchronization signal).
Switch to the 8b side.

FIG. 4 shows the video captured by the camera 31 and the V output caused by the switching operation of the video output changeover switch 38.
It is a figure showing the relationship with the video output to TR39.

FIG. 4(a) shows the initial state, in which photographing is started from the position of the object marked ``■'', and the image marked ▪ is input to the input terminal 38a of the changeover switch 38 and the delay circuit 37.

Figure 4(b) shows the delay time (1) from the state of Figure 4(a).
It shows a state in which only one field has elapsed, and a state in which only one field has elapsed from that state. That is, after the elapse of time, the video of ■ input to the delay circuit 37 becomes VT
It is output to R39, and the image at the position of [phase] taken one hour later is input to the input terminal 38a and the delay circuit 37. Then, after one field has passed from that state, the changeover switch 38 is switched to the input terminal 38a side,
The video of ■, which is the video one field after the video of the above [phase], is output to the VTR 39.

Therefore, as shown in FIG. 5(a), when images are captured by the camera 31 in the order of The images appear in the order of [phase] ■@・, and the input terminal 38b of the changeover switch 38 shows ■■■
The images appear in the order of...

The changeover switches 38 are 38b, 38a, 38
b, 38a, etc., so the VTR
39, as shown in Figure 5(c), ■■■■■■...
The images are output in this order.

In this way, the left and right images in a stereoscopic image can be created by the image captured at a certain time and the image captured after a delay time from that time (for example, ■ and ■), and are played back as a stereoscopic image. These two images differ by the parallax angle corresponding to the delay time. The parallax angle is determined by the shape of the object, the distance between the camera and the object, the rotational speed of the rotary table, etc., but by appropriately setting the delay time, an effective stereoscopic image can be created.

Ru.

The stereoscopic photographing apparatus of this embodiment does not include the video output changeover switch 38 and the VTR 39 from the stereoscopic photographing apparatus shown in FIG.
The other configuration is the same as the stereoscopic photographing apparatus shown in FIG. 3. Identical components will be given the same numbers and their explanations will be omitted.

In the above configuration, the delay time of the delay circuit 37 is set in advance with the operation unit 41, and then the start key of the operation unit 41 is pressed to rotate the rotary table 32 at a constant speed, and the video output from the camera 3I is The left image of the stereoscopic image is output from the output terminal 61a, while the image delayed by the delay time by the delay circuit 37 is outputted from the output terminal 61b as the Ishikawa image of the stereoscopic image.

FIG. 7 is a diagram showing the relationship between the video output from the camera 31 and the video output from the delay circuit 37.

FIG. 7(a) shows the initial state, in which photographing is started from the position of the object marked ``■'', and the image of the subject ▪ is outputted from the output terminal 61a and inputted to the delay circuit 37.

Figure 7(b) shows the delay time (1) from the state of Figure 7(a).
It shows a state in which only one field has elapsed, and a state in which only one field has elapsed from that state. That is, after the elapse of time, the video of (2) input to the delay circuit 37 is output to the output terminal 61b, and the output terminal 61a and the delay circuit 37
An image of the position of [phase] taken one hour later is manually input. Then, after one field has passed from that state, an image of ■ appears on the output terminal 61a, and the output terminal 61
An image of ■ appears on b.

Therefore, as shown in FIG. 8(a), when images are captured by the camera 31 in the order of
1a, Ishikawa's images appear in the order of [stock]0@, and the left-hand images appear in the output terminal 61b in the order of ■■■.

In this way, images captured at a certain time and images captured after a delay time from that time (for example, ■ and [phase])
The left and right images in a 3D image can be created separately, and the images are played back as a polarized 3D image. These two images differ by the parallax angle corresponding to the delay time. The parallax angle is determined by the shape of the object, the distance between the camera and the object, the rotational speed of the rotary table, etc., but by appropriately setting the delay time, an effective stereoscopic image can be created.

<Effects of the Invention> As is clear from the above, the stereoscopic imaging device of the present invention has the following effects:
A single camera is used, the subject is rotated on a rotary table to give a pseudo parallax angle, and the video signal output from the camera is sequentially stored in the field memory field by field, and the stored video signal is used to create a 3D image. Anyone can easily create a 3D image from the video signal output from the camera and the video signal delayed by a delay circuit. It is possible to create a 3D image.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the first invention, FIG. 2 is a diagram showing a state in which an image captured from a camera is output as a stereoscopic image in the above embodiment, and FIG. Block diagram showing the configuration of an embodiment of the invention No. 2, No. 4
The figure is a diagram showing the relationship between the video output from the camera and the video delayed by the delay circuit in the embodiment of the second invention, and FIG. 5 is the diagram captured from the camera in the embodiment of the second invention. FIG. 6 is a diagram showing the configuration of an embodiment of the third invention;
FIG. 7 is a diagram showing the relationship between the video output from the camera and the video delayed by the delay circuit in the embodiment of the third invention, and FIG. FIG. 3 is a diagram showing a state in which the captured video is output as a stereoscopic video. 1.31 Camera, 2.32 Turntable, 333... Subject, 5, 35 Monitor, 6.36... Field count circuit, 7... A/D converter, 8 Field memory, 10.4 .0...control section, 11.41.operation section,
I3...D/A converter, 14. , 39...VTR. 37・Delay circuit, 38...Video output changeover switch. Patent applicant: Sharp Corporation Agent
Patent attorney: 1 person (a) 7me'-1-NN5 (b) (a) (a) Input No. (b) (C) No. (b) Output (d) (a) (b) Replacement ■ ■ ■

Claims (3)

[Claims] (1) A rotary table on which a subject is placed and rotates; a rotation speed control means for controlling the rotational speed of the rotary table to a predetermined speed; and a video image of the subject by photographing the subject rotating on the rotary table. A camera that outputs a signal, a field count means that counts fields of the video signal, a field memory having a plurality of field areas that stores fields of the video signal, and a field memory that stores the fields of the video signal, and a field memory that stores the fields of the video signal. video signal storage means for storing the video signal in a predetermined field area of the field memory sequentially field by field; A stereoscopic photographing apparatus comprising: a control means for reading out and outputting a field and a subsequent field from the field memory as a pair. (2) A turntable that rotates at a constant speed with a subject placed on it; a camera that photographs the rotating subject on the turntable and outputs a video signal of the subject; and a camera that outputs a video signal of the subject; a field counting means for counting; a delay circuit for delaying and outputting the video signal by a set time; and a field counting means for receiving the video signal output from the camera and the video signal output from the delay circuit; a video output switching means for alternately switching and outputting one video signal and the other video signal; and a video output switching means for setting the delay time of the delay circuit, and switching the video output for each field in response to an output from the field counting means. A stereoscopic photographing device characterized by comprising a control means for switching means. (3) A rotary table that rotates at a constant speed with a subject placed on it; a camera that photographs the rotating subject on the rotary table and outputs a video signal of the subject; and a control means for setting the delay time of the delay circuit, and separately outputs the video signal output from the camera and the video signal output from the delay circuit. A stereoscopic imaging device characterized by: