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JP2007082081

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2007082081
PROBLEM TO BE SOLVED: To provide a moving image photographing apparatus interlocking
type spot sound collecting apparatus capable of emphasizing and relaying a sound emitted from
an object together with an image of an object changing from moment to moment. SOLUTION: A
subject 100 is photographed by a video camera 20, and sound source data 11a-11d of sounds
emitted from the subject and detected by a plurality of microphones 10a-10d are stored, and
each of the sound source data 11a-11d is desired. Time delay and read out and synthesize their
data. [Selected figure] Figure 1
Moving image shooting device interlocking type spot sound collector
[0001]
The present invention relates to a spot sound collecting apparatus linked to a moving image
photographing apparatus, and in particular, the moving image photographing apparatus
selectively emphasizes and extracts a sound or the like emitted from a subject to be
photographed, and The present invention relates to a moving image photographing apparatus
interlocking type spot sound collecting apparatus which synthesizes an image of an object and its
sound.
[0002]
In baseball broadcasts, soccer broadcasts and the like, since microphones and television cameras
can not be installed on the ground or field, relays are performed using microphones and
television cameras installed on the outside of them.
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Then, in these relays, while changing the subject photographed by the television camera from
time to time, the video of the subject and the sound thereof are relayed.
[0003]
However, in baseball broadcasts and soccer broadcasts, since the sound is also emitted from a
large number of spectators in addition to the sound emitted by the subject, the microphone also
collects the sounds emitted from a plurality of spectators present in the periphery. There was a
problem. That is, in a baseball broadcast or soccer broadcast, in addition to the sound emitted by
the subject being photographed by a television camera, the voice of the spectator around the
microphone is also relayed, and there is a problem that a realistic relay can not be performed.
there were.
[0004]
On the other hand, in order to solve the problem that the microphone also picks up the sound
around it, some devices which selectively extract the sound generated by a specific sound source
among the sounds generated from a plurality of sound sources are proposed. (See, for example,
Patent Documents 1 and 2).
[0005]
However, with these devices, although it is possible to selectively extract the sound generated by
a specific sound source, it is impossible to emphasize and relay the sound emitted from the
subject as well as the image of the subject which changes from moment to moment. There was a
problem.
[0006]
Japanese Patent Application Laid-Open No. 7-11694 Japanese Patent Application Laid-Open No.
10-70786
[0007]
SUMMARY OF THE INVENTION In view of the above-described circumstances, it is an object of
the present invention to provide a moving image photographing apparatus interlocking type spot
sound collecting apparatus capable of emphasizing and relaying a sound emitted from an object
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together with an image of the object changing every moment. I assume.
[0008]
According to a first aspect of the present invention for solving the above problems, a moving
image photographing apparatus for photographing an object, a plurality of microphones for
detecting sound source data of sound emitted from the object, and the microphones detected by
the respective microphones Sound source data storage means for storing sound source data,
sound from the subject to each microphone based on the arrival time until the sound emitted
from the subject reaches the microphone farthest from the subject Time difference calculating
means for calculating a time difference with respect to the time when the signal reaches, sound
source data reading means for reading out the sound source data from each of the microphones
stored in the sound source data storage means by delaying the time difference corresponding to
the time difference; And combining means for combining the sound source data read out by the
sound source data reading means. In moving image photographing apparatus interlocked spots
pickup apparatus characterized and.
[0009]
In the first aspect, the sound emitted from the subject can be emphasized and extracted together
with the image of the subject which changes from moment to moment.
[0010]
A second aspect of the present invention, in the first aspect, further includes distance calculation
means for calculating the distance from the subject to each of the microphones, and the time
difference calculation means calculates the distance from the subject to each of the microphones
In the moving picture imaging apparatus interlocking type spot sound collecting apparatus, the
time difference is calculated by calculating the time for sound to reach each microphone from the
subject based on the sound velocity.
[0011]
In the second aspect, the time difference can be easily calculated.
[0012]
According to a third aspect of the present invention, in the second aspect, the distance
calculating means determines a positional relationship between the subject and the moving
image photographing apparatus, and positions of the moving image photographing apparatus
and the plurality of microphones. A moving image photographing apparatus interlocking type
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spot sound collecting apparatus is characterized in that a distance between the subject and each
of the microphones is calculated from a relation.
[0013]
In the third aspect, the distance between the subject and each of the microphones can be easily
calculated.
[0014]
According to a fourth aspect of the present invention, in the third aspect, the positional
relationship between the subject and the moving picture photographing apparatus is calculated
by focusing the moving picture photographing apparatus on the subject, and the subject The
positional relationship between the microphone and each of the microphones corresponds to the
positional relationship between the subject and the moving image photographing apparatus, and
the positional relation between the moving image photographing apparatus and the plurality of
microphones set in advance. The present invention relates to a moving image photographing
apparatus linked spot light collecting apparatus characterized by being calculated based on the
above.
[0015]
In the fourth aspect, the distances between the subject and the microphones can be calculated
more easily.
[0016]
According to a fifth aspect of the present invention, in any one of the second to fourth aspects,
the time difference calculating means has a correction function of correcting the sound velocity
according to the state of the atmosphere. Device-linked spot sound collector.
[0017]
In the fifth aspect, an accurate time difference can be calculated.
[0018]
According to a sixth aspect of the present invention, in the first aspect, the time difference
calculating means is provided with an ultrasonic distance measuring device at each of the
microphones or the periphery thereof, and time for sound to reach each of the microphones from
the subject The present invention relates to a moving image photographing apparatus
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interlocking type spot sound collecting apparatus characterized in that the time difference is
calculated by measuring.
[0019]
In the sixth aspect, a more accurate time difference can be calculated.
[0020]
According to a seventh aspect of the present invention, there is provided a moving image
photographing apparatus for photographing an object, video data storage means for storing
image data of the object photographed by the moving image photographing apparatus, and
sound of the sound emitted from the object. A plurality of microphones for detecting sound
source data, sound source data storage means for storing the sound source data detected by each
of the microphones, a microphone or a moving image photographing apparatus in which the
sound emitted from the subject is farthest from the subject Time difference calculation means for
calculating a time difference between the subject arrival time and the time for the sound to reach
each of the microphones and the moving image photographing apparatus on the basis of the
arrival time until the subject reaches the sound source data storage means The stored sound
source data from each of the microphones is read out delayed by a time difference corresponding
to the time difference. Source data reading means, video data reading means for reading out
video data stored in the video data storage means with delay by a time difference corresponding
to the time difference, video data read by the video data reading means, and According to
another aspect of the present invention, there is provided a moving image photographing
apparatus interlocking type spot sound collecting apparatus comprising: synthesis means for
synthesizing sound source data read by the sound source data reading means.
[0021]
In the seventh aspect, together with the image of the subject which changes momentarily, the
sound emitted from the subject can be emphasized and extracted in accordance with the image.
[0022]
The eighth aspect of the present invention is, in the seventh aspect, further comprising distance
calculation means for calculating the distance from the subject to each of the microphones and
the moving image photographing apparatus, and the time difference calculation means calculates
the distance from the subject The time difference is calculated by calculating the time for the
sound to reach each microphone and the moving picture photographing apparatus from the
subject and the distance to the moving picture photographing apparatus and the speed of sound,
and calculating the time difference. Device-linked spot sound collector.
04-05-2019
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[0023]
In the eighth aspect, the time difference can be easily calculated.
[0024]
According to a ninth aspect of the present invention, in the eighth aspect, the distance calculating
means determines a positional relationship between the subject and the moving image
photographing apparatus, and positions of the moving image photographing apparatus and the
plurality of microphones. According to a relationship between the subject and the microphones,
the distance between the subject and the moving picture photographing apparatus is calculated
from the relationship, and the moving picture photographing apparatus interlocking type spot
sound collecting apparatus is characterized.
[0025]
In the ninth aspect, the distance between the subject and each of the microphones can be easily
calculated.
[0026]
According to a tenth aspect of the present invention, in the ninth aspect, the positional
relationship between the subject and the moving picture photographing apparatus is calculated
by focusing the moving picture photographing apparatus on the subject, and The positional
relationship between each of the microphones is based on the positional relationship between
the subject and the moving image capturing device, and the positional relationship between the
moving image capturing device and the plurality of microphones given in advance. The present
invention relates to a moving image capturing apparatus linked spot collecting apparatus
characterized by being calculated.
[0027]
In the tenth aspect, the distances between the subject and the microphones can be calculated
more easily.
[0028]
An eleventh aspect of the present invention is the moving image photographing method
according to any one of the seventh to tenth aspects, wherein the time difference calculating
means has a correction function of correcting the sound speed according to the state of the
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atmosphere. Device-linked spot sound collector.
[0029]
In the eleventh aspect, an accurate time difference can be calculated.
[0030]
According to a twelfth aspect of the present invention, in the seventh aspect, the time difference
calculating means provides an ultrasonic distance measuring device in each of the microphones
or their periphery and the moving image photographing apparatus or their periphery, According
to another aspect of the present invention, there is provided a moving image capturing apparatus
interlocking type spot sound collecting apparatus, wherein the time difference is calculated by
measuring the time for sound to reach each of the microphones and the moving image capturing
apparatus.
[0031]
In the twelfth aspect, a more accurate time difference can be calculated.
[0032]
According to a thirteenth aspect of the present invention, in any one of the first to twelfth
aspects, the moving image photographing apparatus interlocking type spot collection further
comprises broadcasting means for broadcasting the data synthesized by the synthesizing means.
Sound equipment.
[0033]
In the thirteenth aspect, together with the video of the subject that changes from moment to
moment, the sound emitted from the subject can be emphasized and extracted and broadcast
according to the video.
Here, broadcasting includes not only wireless broadcasting but also wired broadcasting, and
further includes data communication broadcasting such as Internet broadcasting via the Internet.
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[0034]
According to the moving image photographing apparatus interlocking type spot sound collecting
apparatus according to the present invention, the sound emitted from the subject can be
emphasized, and the sound can be extracted together with the image, so that the television relay
having a more realistic feeling can be realized. And so on.
[0035]
The best mode for carrying out the present invention will be described below.
The description of the present embodiment is an exemplification, and the present invention is not
limited to the following description.
[0036]
First Embodiment FIG. 1 is a schematic view showing a moving image photographing apparatus
interlocking type spot sound collecting apparatus according to a first embodiment of the present
invention.
As shown in FIG. 1, the moving image photographing apparatus interlocking type spot sound
collecting apparatus 1 according to the present embodiment includes four sound collecting
microphones 10 a to 10 d disposed apart from the subject 100 by distances d1 to d4,
respectively. It comprises a video camera 20 which is a moving image photographing apparatus
installed at a distance L from the subject 100, and a relay server 30 connected to the sound
collecting microphones 10a to 10d and the video camera 20.
[0037]
Then, the relay server 30 stores sound source data storage means 31 for storing sound source
data 11a to 11d of sounds emitted from subjects detected by the respective sound collecting
microphones 10a to 10d, and from the subject 100 to each of the sound collecting microphones
10a to 10d Distance from the subject 100 based on the arrival time until the sound emitted from
the subject 100 reaches the sound collection microphone farthest from the subject 100 as a
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reference. Time difference calculating means 33 for calculating time differences dt1 to dt4 with
the times for the sounds to reach the microphones 10a to 10d, and the sound source data 11a to
11d stored in the sound source data storing means 31 correspond to the time differences dt1 to
dt4 Sound source data reading means 34 for delaying and reading out And it comprises a
synthesizing means 35 for synthesizing the sound source data 11a~11d read by the reading
means 34.
The sound collecting microphones 10 a to 10 d and the video camera 20 are connected to the
relay server 30 by wire or wirelessly.
Hereafter, each component which comprises the moving image imaging device interlocking |
linkage type spot sound collection apparatus 1 is demonstrated concretely.
[0038]
The sound collecting microphones 10 a to 10 d are not particularly limited as long as the sound
source data 11 a to 11 d can be detected from the sound emitted from the subject 100.
As sound collection microphones 10a-10d, although a normal microphone, a directional
microphone, etc. are mentioned, for example, a directional microphone is preferable.
[0039]
The video camera 20 is not particularly limited as long as it can capture the subject 100.
As the video camera 20, for example, a professional video camera or a home video camera may
be used. Furthermore, an analog video camera or a digital video camera may be used, but a
digital video camera is preferable.
[0040]
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9
The relay server 30 is not particularly limited as long as it has the following functions, and may
be, for example, a dedicated computer or a general personal computer.
The functions provided by the relay server 30 will be specifically described below.
[0041]
The sound source data storage unit 31 is not particularly limited as long as it can store the sound
source data 11a to 11d detected by the respective sound collecting microphones 10a to 10d.
As the sound source data storage means 31, there may be mentioned, for example, a program for
storing the sound source data 11a to 11d in a hard disk or a RAM mounted on a personal
computer.
[0042]
The distance calculating means 32 is not particularly limited as long as it can calculate the
distances d1 to d4 from the subject 100 to the sound collecting microphones 10a to 10d, but the
following is preferable.
[0043]
As the distance calculation means 32, for example, the positional relationship between the video
camera 20 and each of the sound collecting microphones 10a to 10d is previously input to the
relay server 30, and the positional relationship between the subject 100 and the video camera 20
and the video camera 20 There are programs and devices for calculating the distances d1 to d4
from the subject 100 to the sound collecting microphones 10a to 10d from the positional
relationship with the sound collecting microphones 10a to 10d.
[0044]
Specifically, first, the positions of the respective sound collecting microphones 10a to 10d from
the video camera 20 are (X1, Y1), (X2, Y2), (X3, Y3), (X4, Y) at the coordinates C on the same
plane. It is assumed that Y4) and (X5, Y5) are set, and the video camera 20 is installed with
reference to a specific direction.
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Further, when the subject 100 is photographed using the video camera 20, as shown in FIG. 1,
the video camera 20 is rotated by an angle θ from a specific direction to focus the lens on the
subject 100.
The subject 100 is assumed to be on the same plane as the video camera 20 and the sound
collecting microphones 10a to 10d.
[0045]
Under this condition, when the distance L between the subject 100 and the video camera 20 is
calculated by focusing the lens of the video camera 20 on the subject 100, the obtained (L, θ)
becomes the origin of the subject 100 with the video camera 20 as the origin. It corresponds to
what represented the position by polar coordinates.
Therefore, the position (a, b) of the subject 100 at the coordinate C can be obtained by
coordinate conversion of the position (L, θ) of the subject 100 from the video camera 20 from
polar coordinates to the coordinate C.
Then, distances d1 to d4 from the subject 100 to the respective sound collecting microphones
10a to 10d are the position (a, b) of the video camera 20 at the coordinate C and the positions of
the respective sound collecting microphones 10a to 10 d at the coordinate C. As it is expressed
by the distance, it can be easily calculated.
Thus, the distances d1 to d4 from the subject 100 to the respective sound collecting
microphones 10a to 10d can be calculated.
[0046]
The time difference calculation means 33 uses the arrival time and the sound of the sound from
the subject 100 based on the arrival time until the sound emitted from the subject 100 reaches
each of the sound collecting microphones 10a to 10d farthest from the subject 100. There is no
04-05-2019
11
particular limitation as long as time differences dt1 to dt4 with respect to the times of reaching
the respective sound collecting microphones 10a to 10d can be calculated.
Examples of the time difference calculation means 33 include programs having the following
functions.
[0047]
First, the time when the sound emitted from the subject 100 from the distance d1 to d4 from the
subject 100 to each of the sound collecting microphones 10a to 10d and the sound velocity SS
inputted in advance reaches each of the sound collecting microphones 10a to 10d and the video
camera 20 Each of t1 to t4 is calculated.
[0048]
Specifically, the time t1 at which the sound emitted from the subject 100 reaches the sound
collecting microphone 10a can be calculated by t1 = d1 / SS.
That is, the time t1 to t4 at which the sound emitted from the subject 100 reaches each of the
sound collecting microphones 10a to 10d is obtained by dividing the distance d1 to d4 from the
subject 100 to each of the sound collecting microphones 10a to 10d by the sound velocity SS. It
can be calculated.
[0049]
Next, the largest one of the obtained times t1 to t4 is selected, and time differences dt1 to dt4 are
calculated from the selected time.
Specifically, assuming that the largest among the obtained times t1 to t4 is t3, the time t3 at
which the sound emitted from the subject 100 reaches the sound collecting microphone 10c and
the sound collected from the subject 100 The time difference dt1 with respect to the time t1 until
reaching the microphone 10a can be calculated by dt1 = t3-t1.
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That is, by subtracting the respective times t1 to t4 for reaching the sound collecting
microphones 10a to 10d from the time for the sound emitted from the subject 100 to reach the
microphone farthest from the subject 100, the time difference is obtained. dt1 to dt4 can be
calculated.
In addition, since any one of the times t1 to t4 until the sound emitted from the subject 100
reaches each of the sound collecting microphones 10a to 10d or the video camera 20 farthest
from the subject 100 is a reference, the time difference Any one of dt1 to dt4 is zero.
[0050]
The sound source data reading means 34 is not particularly limited as long as it can read out the
sound source data 11a to 11d stored in the sound source data storage means 31 with a time
difference corresponding to the time differences dt1 to dt4.
The sound source data reading means 34 may be, for example, a program for reading out the
sound source data 11a to 11d stored in the hard disk by delaying the corresponding time
differences dt1 to dt4.
[0051]
The synthesizing unit 35 is not particularly limited as long as the sound source data 11 a to 11 d
read by the sound source data reading unit 34 can be synthesized.
Examples of the combining unit 35 include a program that combines the sound source data 11 a
to 11 d read by the sound source data reading unit 34.
By using the synthesizing means 35, the sound emitted from the subject 100 can be emphasized
more than other sounds.
That is, the S / N ratio of the sound S emitted from the subject to the other sound N can be
increased.
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[0052]
The above-described program is stored in a hard disk such as a personal computer or a RAM.
[0053]
As described above, according to the moving image photographing apparatus linked spot sound
collecting apparatus 1 of the present embodiment, it is possible to emphasize and extract the
sound emitted from the subject as well as the image of the subject which changes from time to
time.
[0054]
In the present embodiment, the sound velocity SS is input to the relay server 30 as a
predetermined value, but the sound velocity SS fluctuates depending on atmospheric conditions
such as air temperature, humidity, and pressure.
Therefore, the sound speed SS may be corrected by providing the time difference calculating
means 33 with an auxiliary function of correcting the sound speed SS based on the conditions of
the atmosphere.
More accurate time differences dt1 to dt4 can be calculated by using the accurate sound velocity
SS thus obtained.
These atmospheric conditions can be acquired automatically by attaching sensors capable of
measuring air temperature, humidity, barometric pressure, etc. to each of the sound collecting
microphones 10a to 10d, the video camera 20, or the relay server 30. You may
[0055]
Next, the operation of the moving image photographing apparatus linked spot light collecting
apparatus 1 of this embodiment will be described.
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FIG. 2 is a sequence showing the operation of the moving image photographing apparatus
interlocking type spot sound collecting apparatus 1.
As shown in FIG. 2, first, the positions of the sound collecting microphones 10a to 10d from the
video camera 20 and the sound velocity SS are input to the relay server 30 (S1).
[0056]
Next, the subject 100 is photographed by the video camera 20, and sound source data 11a to
11d of sounds emitted from the subject 100 are detected by the respective sound collecting
microphones 10a to 10d (S2).
Then, the sound source data 11a to 11d detected by the respective sound collecting microphones
10a to 10d are transmitted to the relay server 30, and stored by the sound source data storage
unit 31 (S3).
[0057]
Next, distances d1 to d4 from the subject 100 to the respective sound collecting microphones
10a to 10d are calculated by the distance calculation means 32 (S4).
Then, based on the obtained d1 to d4 and the sound velocity SS, time differences dt1 to dt4 are
calculated by the time difference calculating means 33 (S5).
[0058]
Then, based on the obtained time differences dt1 to dt4, the sound source data 11a to 11d
detected by the respective sound collecting microphones 10a to 10d are read using the sound
source data reading means 34 (S6).
[0059]
Next, the sound source data 11a to 11d read by the sound source data reading means 34 and the
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video data transmitted from the video camera 20 are synthesized by the synthesizing means 35
(S7).
[0060]
Second Embodiment In the first embodiment, the sound emitted from the subject 100 can be
enhanced by delaying and synthesizing each of the sound collection microphones 10a to 10d by
the corresponding time differences dt1 to dt4, respectively, and And the sound could be
extracted, but the video may also be delayed and synthesized to suit the sound.
[0061]
For example, as shown in FIG. 2, a moving image photographing apparatus linked spot light
collecting apparatus may be configured.
FIG. 2 is a schematic view showing a moving image photographing apparatus linked spot light
collecting apparatus according to a second embodiment of the present invention.
As shown in FIG. 2, the moving picture photographing apparatus interlocking type spot sound
collecting apparatus 1A is provided with four sound collecting microphones 10a to 10d installed
at distances d1 to d4 from the subject 100, respectively, and a distance L from the subject 100. It
consists of a video camera 20 installed apart from each other, and a relay server 30 connected to
the sound collecting microphones 10 a to 10 d and the video camera 20.
[0062]
The relay server 30 stores sound source data storage means 31 for storing sound source data
11a to 11d of the sounds emitted from the subjects detected by the respective sound collecting
microphones 10a to 10d, and the sound collecting microphones 10a to 10d from the subject
100. Distance calculation means 32 for calculating the distance to the object 100 and the arrival
time until the sound emitted from the subject 100 reaches each of the sound collecting
microphones 10a to 10d or the video camera 20 farthest from the subject 100 Time difference
calculating means 33A for calculating time differences dt1 to dt5 between the arrival time and
the time for the sound to reach each of the sound collecting microphones 10a to 10d and the
video camera 20 from the subject 100, sound source stored in the sound source data storage
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means 31 When the data 11a to 11d correspond to the time differences dt1 to dt4 The time
difference dt5 between the sound source data reading means 34 for reading out by delaying the
difference, the video data storage means 36 for storing the video data 21 of the subject
photographed by the video camera 20, and the video data 21 stored in the video data storage
means 36. Combining the video data reading means 37 for delaying and reading out with a time
difference corresponding to the video data 21 read by the video data reading means 37 and the
sound source data 11 a to 11 d read by the sound source data reading means 34 Means 35A.
Hereafter, each component which comprises moving image imaging device interlocking | linkage
type | formula spot sound collection apparatus 1A is demonstrated concretely.
[0063]
The time difference calculation means 33A uses the arrival time and the subject 100 based on
the arrival time until the sound emitted from the subject 100 reaches each of the sound
collecting microphones 10a to 10d or the video camera 20 farthest from the subject 100. It is
not particularly limited as long as it can calculate time differences dt1 to dt5 with respect to
times when the sounds reach the respective sound collecting microphones 10a to 10d and the
video camera 20.
Examples of the time difference calculation means 33A include a program having the following
functions.
[0064]
Specifically, the time difference calculation means 33A has the same function as the time
difference calculation means 33 of the first embodiment, and further, the sound emitted from the
subject 100 is based on the distance L from the subject 100 to the video camera 20 and the
sound velocity SS. The time t5 for reaching the video camera 20 is calculated by t5 = L / SS, and
the sound emitted from the subject 100 is farthest from the subject 100 among the sound
collecting microphones 10a to 10d or the video camera 20. The time difference dt5 can be
calculated by subtracting the time t5 for reaching the video camera 20 from the time for
reaching the.
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When the video camera 20 is farthest from the subject 100, dt5 is zero.
[0065]
Similar to the sound source data storage unit 31, the video data storage unit 36 is not
particularly limited as long as it can store the video data 21 of the subject photographed by the
video camera 20.
Examples of the video data storage means 36 include a program for storing the video data 21 in
a hard disk mounted on a personal computer, a RAM (Random Access Memory), or the like.
[0066]
Similar to the sound source data reading means 34, the video data reading means 37 is not
particularly limited as long as it can read out the video data 21 stored in the video data storage
means 36 with a time difference corresponding to the time difference dt5. .
Similar to the sound source data reading means 34, the video data reading means 37 may be, for
example, a program for reading the video data 21 stored in the hard disk by delaying it by dt5.
[0067]
The combining means 35A is not particularly limited as long as it can combine the video data 21
read by the video data reading means 37 and the sound source data 11a to 11d read by the
sound source data reading means 34.
Examples of the combining unit 35A include a program that combines the video data 21 read by
the video data reading unit 37 and the sound source data 11a to 11d read by the sound source
data reading unit 34. Here, the video data 21 read out by the video data reading means 37 is
read out delayed by a time difference dt5 more than the time actually taken, and the sound
source data 11a ~ ~ read out by the sound source data reading means 34 Similarly, the data 11d
is read out delayed by the time differences dt1 to dt4, respectively, rather than the time actually
04-05-2019
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calculated, and these data are combined. Therefore, the sound emitted from the subject 100 can
be emphasized, and the sound matched to the image can be extracted together with the image.
That is, the ratio S / N of the sound S emitted from the subject 100 to the other sound N can be
increased, and an image matching the sound S can be obtained. The other components are the
same as those of the moving image photographing apparatus interlocking type spot sound
collector 1 described above, so the same reference numerals are given and the description is
omitted.
[0068]
As described above, according to the moving image photographing apparatus interlocking type
spot sound collector 1A of the present embodiment, the sound of the subject is emphasized
according to the image together with the image of the subject which changes from moment to
moment. It can be extracted.
[0069]
Next, the operation of the moving image photographing apparatus linked spot light collecting
apparatus 1A will be described.
FIG. 4 is a sequence showing the operation of the moving image photographing apparatus
interlocking type spot sound collecting apparatus 1A. As shown in FIG. 4, first, the positions of
the sound collecting microphones 10a to 10d from the video camera 20 and the sound velocity
SS are input to the relay server 30 (S1).
[0070]
Next, the subject 100 is photographed by the video camera 20, and sound source data 11a to
11d of sounds emitted from the subject 100 are detected by the respective sound collecting
microphones 10a to 10d (S2). Then, the sound source data 11a to 11d detected by the respective
sound collecting microphones 10a to 10d are transmitted to the relay server 30, and stored by
the sound source data storage unit 31 (S3). Similarly, the video data 21 captured by the video
camera 20 is also transmitted to the relay server 30, and stored by the video data storage means
36 (S4). Note that S3 and S4 may be performed simultaneously, or S3 may be performed after S4
is performed.
04-05-2019
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[0071]
Next, distances d1 to d4 from the subject 100 to the respective sound collecting microphones
10a to 10d and a distance L from the subject 100 to the video camera 20 are calculated by the
distance calculation means 32 (S5). Then, based on the obtained d1 to d4 and L and the sound
velocity SS, time differences dt1 to dt5 are calculated by the time difference calculating means
33A (S6).
[0072]
Next, based on the obtained time differences dt1 to dt4, the sound source data 11a to 11d
detected by the sound collecting microphones 10a to 10d are read out using the sound source
data reading means 34 (S7). Similarly, based on the obtained time difference dt5, the video data
read means 37 is used to read out the video data 21 photographed by the video camera 20 (S8).
Note that S7 and S8 may be performed simultaneously, or S7 may be performed after S8 is
performed.
[0073]
Then, the read-out sound source data 11a to 11d and the video data 21 are combined by the
combining means 35A (S9).
[0074]
Third Embodiment In the first and second embodiments, the distance L from the subject 100 to
the video camera 20 is calculated by focusing the lens of the video camera on the subject 100,
but the distance measurement to the video camera 20 or its periphery A distance device may be
provided to measure the distance L.
Here, examples of the distance measuring device include an ultrasonic distance measuring device
and an optical distance measuring device. The moving picture imaging apparatus interlocking
type spot sound collecting apparatus of the present embodiment can accurately measure the
distance L to the subject 100 by the distance measuring device. Therefore, according to the
moving image photographing apparatus interlocking type spot sound collecting apparatus of the
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present embodiment, it is possible to emphasize and extract the sound emitted from the subject
as well as the image of the subject which changes every moment.
[0075]
Other Embodiments In the first to third embodiments, using the four sound collecting
microphones 10a to 10d and the video camera 20, the sound emitted from the subject 100 can
be emphasized and extracted, and together with the image Although the sound can be extracted,
the present invention is not limited to this configuration. For example, more sound collecting
microphones may be used, a plurality of video cameras may be used, or they may be combined.
With more sound collecting microphones, the sound emitted from the subject can be more
emphasized and extracted. Then, when a plurality of video cameras are used, the sound emitted
from the subject can be emphasized and extracted, and the sound can be extracted together with
the video taken by each video camera. At least two sound collecting microphones are required.
[0076]
Further, a broadcasting means for broadcasting data synthesized by the synthesizing means 35
or 35A is provided to be connected to the relay server 30, and the data synthesized by the
synthesizing means 35 or 35A can be broadcasted You may As a broadcast means, a satellite
repeater etc. are mentioned, for example. The broadcast includes not only wireless broadcast but
also wired broadcast, and further includes data communication broadcast such as Internet
broadcast via the Internet. By configuring in this manner, it is possible to emphasize the sound
emitted from the subject 100, and to extract the sound together with the image and relay them.
[0077]
Further, in the first to third embodiments, a video camera is used as a moving image shooting
device, but the moving image shooting device of the present invention is not limited to this, and
any device capable of shooting a moving image is acceptable. Examples of the moving image
photographing apparatus include a television camera, a movie camera, and a security camera.
[0078]
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21
FIG. 1 is a schematic view showing a moving image shooting apparatus linked spot collecting
apparatus according to a first embodiment. 5 is a sequence of operations showing a moving
image shooting apparatus linked spot sound collecting apparatus according to the first
embodiment. FIG. 7 is a schematic view showing a moving image shooting apparatus linked spot
light collecting apparatus according to a second embodiment. 7 is a sequence showing the
operation of the moving image shooting apparatus linked spot sound collecting apparatus
according to the second embodiment.
Explanation of sign
[0079]
DESCRIPTION OF SYMBOLS 1 moving image imaging device interlocking-type spot sound
collection device 10a-10d sound collection microphone 11a-10d sound source data 20 video
camera 21 image data 30 relay server 31 sound source data storage means 32 distance
measurement means 33, 33A time difference calculation means 34 sound source data readout
Means 35, 35A Combining means 36 Video data storage means 37 Video data reading means
100 Subject
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