JP2002027302A - Image pickup device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive image pickup device for easily picking up images from many directions to an object. SOLUTION: This panoramic scanner records an image that is inputted via an image-input 403, and picks up the image of the object 55 using a digital video camera 401 for recording a voice that is inputted through a voice-input corresponding to the image. In the panoramic scanner, the image-input 403 is retained so that the image-input 403 of the digital video camera 401 is directed toward the object 55, and at the same time a rotor 400 rotates around a still stage 1. The rotary position of the image-input 403 to the object 55 is specified, for example, by measuring the rotating time of a motor 30 at a fixed speed, a voice signal is generated by the frequency modulating a specific carrier according to the specified rotary position, and the generated voice signal is transmitted to the voice-input.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording an image input through an image input unit and recording sound input through an audio input unit in correspondence with the image.
The present invention relates to a photographing technique for photographing a three-dimensional object.

[0002]

2. Description of the Related Art Conventionally, a photographing technique for photographing a three-dimensional object from multiple directions is known. In a conventional photographing system for photographing a subject from multiple directions, the subject is placed on a stage and rotated along with the stage, and a plurality of still images from multiple directions are captured by a camera whose position is fixed.

At the time of photographing, the distance between the subject and the camera is precisely measured using a laser beam, and the three-dimensional shape of the subject is identified by a plurality of still images obtained by the photographing. A rotated image will be obtained.

[0004]

However, in the above-described conventional photographing system, since the stage is rotated, it is difficult to maintain the same posture, particularly when the subject is a human body. It is difficult to obtain a plurality of still images (from multiple directions) of a still object. Also, the subject cannot photograph his / her own figure alone, the photographer needs to record information identifying the direction in which the subject was photographed, and the conventional photographing system simply performs photographing from multiple directions. It is not something that can be done.

Further, in the conventional photographing system, since a laser beam is used, the whole apparatus becomes large and expensive, and it is almost impossible to photograph a three-dimensional object from multiple directions. .

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above problems, and an object of the present invention is to provide an inexpensive photographing apparatus capable of easily photographing a subject from multiple directions.

[0007]

In order to achieve the above object, a first photographing apparatus according to the present invention records an image input through an image input unit and receives an image input through an audio input unit. This is a photographing device for photographing a three-dimensional object using a recording device that records the sound in association with an image.

In the first photographing apparatus, relative rotation of the video input unit with respect to the subject is guided so that one round of the outer surface of the subject is input from the video input unit, and the relative rotation position of the video input unit is determined. A different sound signal is generated according to the specified position, and the generated sound signal is transmitted to the sound input unit.

[0009] In the above-described photographing apparatus, the frame images F _i (m
Is the number of images for one round of the outer surface of the subject, i = 1, 2,
..., the center of gravity g _i of the object are calculated in m), the observed value d _i of the deviation from the center of rotation from the g _{i + m / 2} or g _{im / 2} Metropolitan calculated and the calculated g _i are calculated the d _i are the true value h _i is calculated deviation from the center of rotation by Fourier expansion, and that the position of the subject in F _i is corrected based on the calculated h _i, subject in F _i , The number n _{i of} pixels corresponding to is counted, and the counted n _i and the counted n _{i + m / 2
Alternatively,} the observed value w _i of the ratio of the size of the subject is calculated from n _{im / 2,} and the true value k _i of the ratio of the size of the subject is calculated by performing Fourier expansion of w _i , and the calculated k _i it can be the size of the subject in F _i is assumed to be corrected on the basis of.

A second photographing device according to the present invention uses a recording device that records a video input through a video input unit and records the audio input through the audio input unit in association with the video. Is a photographing device for photographing a three-dimensionally shaped subject.

In the second photographing apparatus, the position of the image input section is guided so that the periphery of the subject can be rotated at a constant speed while being directed to the subject within one rotation plane around the subject. Is started, the sound signal having a different frequency is generated according to the measured time, and the generated sound signal is transmitted to the sound input unit.

A third photographing device according to the present invention uses a recording device that records a video input via a video input unit and records the audio input via the audio input unit in association with the video. Is a photographing device for photographing a three-dimensionally shaped subject.

In the third photographing apparatus, the position of the video input unit is guided so that the periphery of the subject can be rotated while being directed to the subject in one rotation plane around the subject, and the video input unit for the subject is guided. Rotation position is detected,
An acoustic signal having a different frequency is generated according to the detected rotational position, and the generated acoustic signal is transmitted to the acoustic input unit.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A panoramic scanner according to one embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing an overall configuration of a panoramic scanner which is one embodiment of the present invention. FIG. 1A is a plan view of the present panoramic scanner, and FIG. 1B is a side view of the present panoramic scanner.

The panoramic scanner is a rotating body that holds a digital video camera 401 and the like via a chair 50 (with a height adjustment function) that allows a subject to be seated almost stationary and a driving wheel 35 that rotates at a stationary position. A motor 30 for rotating (revolving) in the direction of arrow A with 400 as a center of rotation O, and an operation input unit for accepting an input of an operation for instructing start and stop of rotation of the rotating body 400 from a photographer (subject 55) The stationary stage 1 includes a control unit 20 that controls the motor 30 according to an input to the operation input unit 20 and the like.

The rotating body 400 serves as a digital video camera 401 for photographing the subject 55 (here, mainly the head of the subject 55) via the video input unit 403, and a background from the digital video camera 401 toward the subject 55. Chroma key processing performed later (processing to extract only the image of the face of the subject)
And a blue back 406 for maintaining the distance between them, a rotating rail 405 in contact with the driving wheel 35, and an auxiliary wheel 411 that contacts the floor and assists the rotating operation.
416, and an origin indicator 404 for specifying the origin position (which is a reference for recording the sound indicating the rotational position) when the rotating body 400 rotates.

The control unit 10 of the panoramic scanner having such a configuration will be described in more detail. FIG. 2 is a block diagram for explaining an outline of control in the control unit 10, and FIG. 3 is a flowchart showing a procedure of a motor control process in the motor control unit 11.

As shown in FIG. 2, the control unit 10
And a frequency modulator 14 for frequency-modulating a carrier having a constant amplitude in accordance with the time measured by the timer 13 to generate an audio signal within an audible sound range. And an origin position sensor 12 that detects an origin indicator 404 provided on the rotating body 400, and an operation input unit 2
Control the rotation of the motor 30 according to the operation input from 0,
Timer 13 responds to the detection of the home position by home position sensor 12.
And a motor control unit 11 for starting the time measurement at the time.

Actually, the rotating body 400 does not become a target of recording of a time signal or an audio signal based on the timing, a running section (a section from when rotation is instructed until the rotating body 400 reaches a certain speed) and an overrun section. (Rotating around the subject at a constant speed, except for the section in which the rotation of the motor 30 is stopped after the shooting for a predetermined time is completed and the rotating body 400 continues to rotate by inertia until the rotating body 400 naturally stops). The rotation position of 0 ° (corresponding to the above-described origin position) is made to correspond to the time when the rotation of the motor 30 is started, and the time 90 seconds after the rotation of the motor 30 is started, the digital video camera 401 Can be made to correspond to a rotation position of 360 ° assuming one rotation around the. Further, a frequency f (= 100 to 3700 [Hz]) as shown in [Equation 1] that changes according to the elapsed time t (= 0 to 90 [sec]) from the detection of the origin position is transmitted to the frequency modulation unit 14. Can be assumed as the frequency of the audio signal to be modulated.

[0021]

(Equation 1)

As shown in FIG. 3, a control unit 1 such as these
In the motor control process of the motor control unit 11 of 0, it is first determined whether or not the start of rotation of the motor 30 has been instructed from the operation input unit 20 (step 101; hereinafter, step is abbreviated as S). If rotation start is not instructed (N in S101)
o), the process is stopped in S101 as it is, and if the start of rotation is instructed (Yes in S101), the rotation of the motor 30 at a constant angular velocity is started (S102).

The rotating body 400 rotates with the rotation of the motor 30. Subsequently, it is determined whether or not the origin position sensor 404 detects the origin indicator 404 (S103). Origin indicator 4
If 04 is not detected (No in S103), S1 is left as it is.
The processing is stopped at 03 and the detection of the origin indicator 404 is waited,
If the origin indicator 404 is detected (Yes in S103), the start of time measurement by the timer 13 is instructed (S10).
Four). (Here, it is assumed that the origin position is detected after the rotating body 400 travels in the approach section.)
Whether or not a stop is instructed (S105), and whether or not a predetermined time (for example, 90 seconds) set as a time required to make one round around the subject with reference to the origin has elapsed (S106). It is determined and stop is instructed (Yes in S105), or a predetermined time elapses (Yes in S106).
Then, the rotation of the motor 30 is stopped (S107), the rotation of the rotating body 400 is stopped after traveling in the overrun section,
This motor control processing ends.

Next, correction of an image photographed by the panoramic scanner will be described. In the above-described image capturing using a panoramic scanner, it is difficult to rotate a digital video camera while facing a fixed center of rotation, and to keep the subject (head) stationary at the center of rotation. (A moving still image), the subject moves left and right due to a deviation from the center of rotation, and the size of the subject changes according to the distance from the digital video camera.
The following correction shall be performed on the position and size of the subject in the frame image included in the shot video, and the rotated image of the subject (vertical rotation) according to the position of the digital video camera Image that rotates around the center)
Can be obtained.

Actually, video and audio are recorded on a memory card in a digital video camera as MPEG format data (when a normal video camera is used instead of a digital video camera, the video and audio are recorded on a video tape. Recorded), the position and size of the subject are corrected in a frame image that constitutes a video and whose rotation position is specified by sound by a program storage type computer connected to these memory cards via a predetermined interface. You.

FIG. 4 is a diagram showing a position of a digital video camera for photographing a subject, and FIG. 5 is a diagram showing an example of a frame image of the subject photographed at each position of the digital video camera. Depending on the position i of the digital video camera as shown in FIG. 4, frame images as shown in FIGS. 5A to 5H are obtained.

Here, eight frame images for each rotation angle π / 4 specified by i are extracted from the video taken by the digital video camera while making one round around the subject, and these are extracted. It is assumed that the frame image is corrected. In particular, the frame image is extracted while the rotation position of the digital video camera (revolution position with respect to the subject) is identified by the data in the audio packet (audio track), and the corrected frame image data is the rotation (rotation) of the subject. ) The data is recorded on a predetermined recording device together with the data indicating the position.

[0028] Now, in the frame image F _i, 2-dimensional coordinates (x, y), made to correspond to the pixels constituting the F _i, the center of gravity g _i of the pixels constituting the subject, the effective number of pixels n _i (The number of pixels corresponding to the face of the subject, only the pixels of the face have luminance by performing chroma key processing or the like in advance), P _j is the position vector of the effective pixel j, and I _j is (effective)
The luminance of the pixel j (= (R + G + B) / 3) is expressed as [Equation 2].

[0029]

(Equation 2)

Further, m is the number of frame images (m = 8 in FIG. 5) taken at regular intervals while the digital camera makes one round around the subject, and F _i (0 ≦ i <m / 2)
The center of gravity g _i of the object inside and the center of gravity g of the object inside F _{i + m / 2
i +} in the middle of the _{m / 2} as is the center of rotation of the digital video camera (e.g. an average of g ₂ and g ₆ of FIG. 5 which is the rotation center of the digital video camera), the center of gravity of the subject in F _i deviation of g _i from the center of rotation d _i (according to observations)
Are [Equation 3] (0 ≦ i <m / 2) and [Equation 4] (m / 2 ≦ i <
m).

[0031]

(Equation 3)

[0032]

(Equation 4)

Here, when d _i is expanded into a Fourier series as shown in [Equation 5], the Fourier coefficients a _n and b _{n become} [Equation 6],
It is expressed as [Equation 7].

[0034]

(Equation 5)

[0035]

(Equation 6)

[0036]

(Equation 7)

[0037] those ignoring the DC component and second- or higher-order components of the Fourier series in Equation 5, when the h _i as representing the true shift from the center of rotation, h _i is the Number
8] At this time, from [Equation 6] and [Equation 7],
a ₁ and b ₁ are determined as in [Equation 9] and [Equation 10].

[0038]

(Equation 8)

[0039]

(Equation 9)

[0040]

(Equation 10)

As described above, [Equation 3] and [Equation 4] show
Deviation from the center of rotation due to observations d _iFrom [Equation 8],
True from the center of rotation as shown in [Equation 9] and [Equation 10]
Gap h_iIs required, and in the same way
And vertical and horizontal scales based on the observations shown in [Equation 11] and [Equation 12].
Ratio w_i(Effective pixel number n_iThe number of
The square root of corresponds to the distance), [Equation 13], [Equation 1
4], the true ratio k of the vertical and horizontal scales as shown in [Equation 15]_i
Is required.

[0042]

[Equation 11]

[0043]

(Equation 12)

[0044]

(Equation 13)

[0045]

[Equation 14]

[0046]

(Equation 15)

The subject in the frame image F _i is first moved to the center by h _i , and then the size of the subject is enlarged or reduced by k _i, so that the subject (the image corresponding to the effective pixel thereof) is appropriate. , And a frame image of a continuous subject that rotates around the center of rotation in the vertical direction (the direction perpendicular to the circular orbit of the digital video camera) is effectively obtained.

[0048] In fact, FIG. 6 (m = 20) when 20 frame images F _i is recorded while the digital camera around the periphery of the object, of h _i and k _i for these F _i Example FIG. As described above, d _i (FIG. 6A)
_Hi (FIG. 6 (b)) (from which noise corresponding to the DC component and the higher-order component has been removed) is calculated from w _i (FIG. 6).
From (c)), k _i (FIG. 6 (d)) (from which noise corresponding to the higher order component has been removed) is calculated. Position and size of these calculated h _i and k _i are used to 20 frame images each object is corrected.

According to the above panoramic scanner,
The position of the digital video camera 401 is guided by the rotating body 400, the motor 30, the driving wheels 35, and the like so as to rotate around the subject while capturing an image of the subject. At this time, the rotation of the digital video camera 401 with respect to the subject ( (Revolution) position is specified by the timer 13, an audio signal having a different frequency is generated by the frequency modulation unit 14 according to the specified rotation position, and the generated audio signal is transmitted to the audio input unit 402 and recorded as audio. You. With these panoramic scanners,
It is not necessary for the photographer to record the rotational position in accordance with the photographing of the subject as in the related art, and the photographing from multiple directions can be easily performed. There is no need to measure the distance, and these can be configured at low cost.

Since this subject is recorded as a moving image,
As compared with the conventional shooting as a still image, the change in the expression of the subject is more faithfully photographed, and a very vivid rotated image of the subject (spinning image, image photographed from multiple directions) is obtained.

Further, with respect to the digital video camera 401 moving around the subject 55, the blue background 406 is always rotated at a position which is the background of the subject, so that the blue background is moved according to the position of the digital video camera. Therefore, it can be said that the photographing of the subject from multiple directions can be performed more easily without requiring any personnel.

Further, the frame image constituting the video obtained by the panoramic scanner is appropriately corrected as described above, and a rotated (rotated) image of the subject can be obtained effectively. It will be.

In particular, in the panoramic scanner according to the above-described embodiment, by attaching a light to the digital video camera, the influence of external light and ambient light is reduced.
In addition, by turning the monitor screen of the digital video camera toward the subject, the subject being photographed can check the recorded video. In addition to these, in the panoramic scanner of the above-described embodiment, by detecting an obstacle while the rotating body 400 is rotating and stopping, the shooting can be performed more safely. By automatically returning the digital video camera to the measurement start position when the photographing is completed, a plurality of consecutive photographings can be smoothly performed.

Further, the following modifications can be made to the above-mentioned panoramic scanner. In the panoramic scanner of the present modification, a rotary encoder is used instead of the timer in order to more accurately specify the rotational position of the digital camera with respect to the subject.

FIG. 7 is a block diagram for explaining the outline of the control by the control unit 110 of the panoramic scanner according to this modification. (In the panoramic scanner of this modification, the configuration and operation of the control unit described below are the same as those of the panoramic scanner of the above embodiment except for the following.) The control unit 110 detects the rotation of the rotating body 140. Encoder 113 and a frequency modulator 11 for frequency-modulating a predetermined carrier in accordance with the rotational position detected by the rotary encoder 113 to generate an audio signal in an audible sound range.
4, a position detection unit 112 that detects an origin indicator provided on the rotating body 400, and controls the motor 130 in accordance with an operation input from the operation input unit 120, and an origin position at the position detector 112 And a motor control unit 111 for resetting the rotary encoder 113 in response to the detection of.

Actually, the rotating body 400 rotates one round around the subject (excluding the approach section and the overrun section), and the rotational position θ detected by the rotary encoder 113 (= 0 to 360 [ °])
2], a frequency f (= 100 to 3700 [Hz]) as shown in
It can be assumed as the frequency of the audio signal modulated by the frequency modulator 114. ,

[0057]

(Equation 16)

According to the panoramic scanner of this modification, the digital video camera is configured to rotate around the subject while capturing the image of the subject by the rotating body 140, the motor 130, and the like.
The position (and orientation) of the digital video camera 141 relative to the subject is detected by the rotary encoder 113, and an audio signal having a different frequency in accordance with the detected rotational position is output from the frequency modulation unit 114. , And the generated audio signal is transmitted to the audio input unit 142 of the digital video camera 141 and recorded as audio.

In the panoramic scanner of this modified example, as in the above-described panoramic scanner, it is possible to easily perform photographing from multiple directions, and it can be said that these are configured at low cost.

In the panoramic scanner according to the above-described embodiment, the digital video camera is rotated (revolved) particularly with respect to a stationary subject, but the subject is rotated with respect to the stationary digital video camera. (Rotation).

Further, in the panoramic scanner of the above embodiment, the digital video camera captures the head of the subject, but the digital video camera is spaced apart from the subject, and a plurality of digital video cameras are connected. By using this, the whole body of the subject is photographed, and these can be used for virtual fitting of a wedding costume and the like. In addition to these, a plurality of digital video cameras are used to simultaneously photograph the side surface and the upper surface (or the lower surface) of the subject, thereby recording the three-dimensional shape of the subject more precisely. By using the recorded frame image, it is possible to more precisely reproduce the attachment of the bra to the chest.

Further, in the panoramic scanner of the above embodiment, the digital video camera is directed to the inside of the circular orbit and the subject is placed inside the circular orbit, but the digital video camera is directed to the outside of the circular orbit. The entire outside of the circular orbit can be regarded as a subject, and such a panoramic scanner can be said to be an inexpensive imaging device that can easily perform panoramic imaging of a landscape from a position where it is installed. .

[0063]

According to the photographing apparatus of the present invention, the frequency, the amplitude, and the
Different sound signals such as waveforms are generated and recorded in the sound input unit, so that the photographer can photograph the subject from multiple directions (there is no need for the photographer to record the rotational position in accordance with the photographing of the subject as in the related art). Will be performed easily,
These can be said to be inexpensive (because laser light or the like is not used).

In the above-described photographing apparatus, the background plate is held while being rotated, so that photographing from multiple directions can be performed more easily.

Further, by appropriately correcting the subject in the frame image with the above-mentioned photographing device, a frame image of a continuous subject that rotates around the rotation center can be effectively obtained. Will be done.

In particular, in the above-described photographing apparatus, the image input section is rotated at a constant speed around the subject while being directed to the subject within one rotation plane centered on the subject. By timing the time,
The image input unit is rotated around the subject while facing the subject in one rotation plane around the subject, and the rotation position of the video input unit with respect to the subject is detected by detecting the rotation position of the image input unit with respect to the subject. These can be said to be simple and contribute to an inexpensive configuration.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a panoramic scanner which is one of embodiments of the present invention.

FIG. 2 is a block diagram for explaining an outline of control by a control unit 10;

FIG. 3 is a flowchart illustrating a procedure of a motor control process in a motor control unit 11;

FIG. 4 is a diagram showing a position of a digital video camera for photographing a subject.

FIG. 5 is a diagram illustrating an example of a frame image of a subject captured at each position of the digital video camera.

[Fig. 6] While the digital camera makes one round around the subject, 2
When 0 frame images F _i are recorded, these F _i
Is a diagram illustrating an example of h _i and k _i for.

FIG. 7 is a block diagram for explaining an outline of control by a control unit 110 of the panoramic scanner of the present modification.

[Explanation of symbols]

 1 Stationary stage 10 Control unit 11 Motor control unit 12 Home position sensor 13 Timer 14 Frequency modulation unit 20 Operation input unit 30 Motor 35 Drive wheel 50 (with height adjustment function) Chair 55 Subject 400 Rotating body 401 Digital video camera 402 Audio input Unit 403 Video input unit 404 Origin indicator 405 Rotating rail 406 Blue back 411-416 Auxiliary wheel

Claims (12)

[Claims] 1. A three-dimensional object is photographed by using a recording device that records an image input via an image input unit and records sound input via an audio input unit in correspondence with the image. A photographing device, comprising: a guiding unit that guides a relative rotation of the video input unit with respect to the subject so that one outer circumference of the subject is input from the video input unit; and a position of the relative rotation of the video input unit. A photographing apparatus comprising: a specifying unit that generates a sound signal that differs according to a specified position; and a transmitting unit that transmits the generated sound signal to an audio input unit. 2. The apparatus according to claim 1, wherein the guidance unit includes: a rotating body that rotates while holding an image input unit so as to face a subject placed near a center of rotation; and a rotation driving unit that rotates the rotating body. The imaging device according to the above. 3. The imaging device according to claim 2, wherein the rotating body holds a background plate at a position serving as a background of the subject from the video input unit, in addition to the video input unit. 4. The guiding means includes: a rotating body that rotates while holding the subject near the center of rotation; a rotation driving means that rotates the rotating body; and a holding means that holds the image input unit so as to face the subject. 2. The photographing device according to claim 1, including: 5. The photographing apparatus according to claim 1, wherein the subject is a human body. 6. An image processing apparatus according to claim 1, wherein frame images F _i (m = 1, 2,..., M, where m is the number of images for one round of the outer surface of the subject) included in the recorded video at predetermined intervals. Center of gravity g
a first calculating means for calculating a _i, a second calculating means for calculating an observed value d _i of the deviation from the center of rotation from the g _{i + m / 2} or g _{im / 2} Metropolitan calculated and the calculated g _i , D _i by Fourier expansion to calculate the true value h _i of the deviation from the center of rotation, and first correction means for correcting the position of the subject in F _i based on the calculated h _i. Counting means for counting the number n _i of pixels corresponding to the subject in F _i ; ratio of the size of the subject based on the counted n _i and the counted n _{i + m / 2} or n _{im / 2} a fourth calculation means for calculating the observations w _i, the w _i and a fifth calculating means for calculating the true value k _i for the ratio of the size of the object by the Fourier expansion, based on the calculated k _i imaging device according to any one of claims 1 to 5, further comprising a second correcting means for correcting the size of the subject in the F _i. 7. A three-dimensional object is photographed by using a recording device that records an image input through an image input unit and records sound input through an audio input unit in correspondence with the image. A photographing device, comprising: a guiding unit that guides a position of the video input unit so as to rotate around the subject while facing the subject; a identifying unit that identifies the guided position; and a frequency according to the identified position. An imaging apparatus comprising: a generation unit configured to generate different audio signals; and a transmission unit configured to transmit the generated audio signal to an audio input unit. 8. A three-dimensional object is recorded by using a plurality of recording devices that record a video input through a video input unit and record audio input through an audio input unit in correspondence with the video. A photographing apparatus for photographing, wherein: a plurality of guiding means for guiding the positions of the video input units of the plurality of recording devices so as to rotate around the subject in a plurality of planes parallel to each other; Specifying means for specifying a guided position of each of the video input units; generating means for generating audio signals having different frequencies according to the specified positions; and outputting the generated audio signals to an audio input unit of each of the recording devices. A photographing apparatus, comprising: a transmission unit for transmitting. 9. A three-dimensional object is photographed by using a recording device that records an image input through an image input unit and records sound input through an audio input unit in correspondence with the image. An imaging device, wherein a position of an image input unit of a first recording device is guided so as to rotate around a subject while being directed to a side surface of the subject, and the periphery of the subject is rotated while being directed to an upper surface or a lower surface of the subject. Guidance means for guiding the position of the video input unit of the second recording device; specifying means for specifying the guided position of each video input unit; and generation of generating an acoustic signal having a different frequency according to the specified position. Means for transmitting the generated sound signal to the sound input unit of each recording device. 10. A three-dimensional object is photographed by using a recording device that records an image input via an image input unit and records sound input via an audio input unit in correspondence with the image. A photographing apparatus, comprising: a guiding unit for guiding a position of an image input unit so as to rotate around a subject at a constant speed while facing the subject in one rotation plane around the subject; and starting rotation. Time means for measuring a time from the time when the sound signal is generated, generating means for generating an acoustic signal having a different frequency according to the measured time, and transmitting means for transmitting the generated acoustic signal to the acoustic input unit. An imaging device characterized by the above-mentioned. 11. A three-dimensional object is photographed by using a recording device that records an image input through an image input unit and records sound input through an audio input unit in correspondence with the image. A photographing apparatus, comprising: a guiding unit for guiding a position of a video input unit so as to rotate around the subject while facing the subject in one rotation plane centered on the subject; and rotating the video input unit with respect to the subject. It is characterized by comprising: detecting means for detecting a position; generating means for generating an acoustic signal having a different frequency according to the detected rotational position; and transmitting means for transmitting the generated acoustic signal to the acoustic input unit. Shooting equipment. 12. A three-dimensional object is photographed by using a recording device that records an image input through an image input unit and records sound input through an audio input unit in correspondence with the image. A step of inducing relative rotation of the video input unit with respect to the subject so that one round of the outer surface of the subject is input from the video input unit; and specifying a position of the relative rotation of the video input unit. An imaging method, comprising: a step of generating a different acoustic signal according to a specified position; and a step of transmitting the generated acoustic signal to an audio input unit.