JP4963875B2 - Peeping detection device and peeping detection system - Google Patents

Description

  The present invention relates to a voyeurism detection device and a voyeurism detection system for finding a wireless voyeur camera installed in a CD / ATM corner, a toilet, a changing room, or the like.

  In recent years, voyeurism in CD / ATM corners and toilets has become a social problem. There are many methods of voyeurism, where a voyeur camera with a built-in radio transmitter is placed near the voyeur location, and the voyeur camera video is received by a radio receiver owned by the voyeur near the voyeur location. It is used. The voyeur camera used in such a technique is downsized to the size of a match box and is difficult to find by visual observation.

Therefore, in order to solve such a problem, a voyeurism detection device described in Patent Document 1 is known. In Patent Document 1, a radio signal transmitted from a voyeur camera is detected, and an image included in the radio signal is displayed on a monitor in a security room. It is described that it is determined whether or not the camera is installed and the installation position of the voyeur camera is determined.
JP 2002-142235 A

The above-described conventional voyeur detector is effective in that it can be confirmed by actually viewing the image whether it is a voyeur video image, and can also confirm the installation position of the voyeur camera.
However, the conventional voyeurism detection apparatus described above has a problem in that no consideration is given to the voyeur and privacy of the voyeur is not ensured.

In other words, there is a high possibility that a voyeurized video includes a video with very high privacy. For this reason, it is not preferable for voyeurs (voyeur victims) that even if they are security guards, it is not preferable for others to see the voyeurized video.
In the conventional voyeurism detection device described above, a security guard or the like who monitors voyeurism looks at the video actually taken and makes various discriminations, and the private video of the voyeur is sent to the security guard. I have the problem of being viewed. For this reason, the conventional voyeurism detection device may give a bad impression to a user who can be a voyeurist.

  Accordingly, an object of the present invention is to provide a voyeurism detection apparatus that takes into account the privacy of voyeurists in view of the special nature of voyeur video.

  In order to achieve the above object, a voyeurism detection apparatus according to the present invention is a voyeurism detection apparatus for detecting a video signal transmitted from a voyeur camera, a receiving means for receiving radio waves, a video signal obtained by converting the received radio waves A detection unit for detecting the image, a video processing unit for blurring the video of the video signal detected by the detection unit, and an output unit for outputting the video subjected to the blurring process by the video processing unit. It is said.

A security guard or the like who monitors voyeurism only needs to confirm whether the video is a voyeur video, and does not need to check the video in detail. Therefore, in the present invention, the privacy of the voyeur is taken into consideration by determining whether or not the video is a voyeur image based on rough information obtained by visually recognizing a blurred image. That is, when receiving a video signal, the voyeurism detection apparatus according to the present invention performs a process of blurring the video and outputs the blurred video. The output destination is a display unit, a portable terminal held by a security guard, a remote monitoring center, or the like.
A security guard or the like who monitors the voyeur action confirms the unclearly output video and confirms whether the video is a voyeur video and the approximate position where the voyeur camera is installed.
Thereby, the presence or absence of the voyeurism and the approximate installation position of the camera can be confirmed while considering the privacy of the voyeurist.

  In the voyeurism detection apparatus according to the present invention, preferably, the video processing unit performs a process of reducing the resolution of video based on the video signal detected by the detection unit as the blurring process.

  When this voyeurism detection apparatus receives a video signal, the voyeurism detection apparatus outputs the video as a low-resolution video. Thus, the voyeurized video is output as a substantially mosaic-like video, and the privacy of the voyeur can be ensured. In addition, security guards who monitor voyeurism only need to check whether or not they are voyeur video, and it is not necessary to check the video in detail. Even a low-resolution video output from the apparatus can be sufficiently utilized as information for determining whether or not there is a voyeurism action around the voyeurism detection apparatus.

In the voyeurism detection apparatus according to the present invention, preferably, the video processing unit performs a process of masking a predetermined area of the video by the video signal detected by the detection unit as the blurring process.
Thereby, it is possible to mask and output the voyeur object, and to secure the privacy of the voyeur. In addition, security guards who monitor voyeurism are masked because it is only necessary to check whether or not they are voyeur video, and it is not necessary to check the video in detail. By referring to an area other than the above, it can be sufficiently used as information for determining whether there is a voyeurism around the voyeurism detection apparatus.

In the voyeurism detection apparatus according to the present invention, it is preferable that the video processing unit performs a color reduction process on video based on the video signal detected by the detection unit as the blurring process.
As a result, the voyeurized video is deformed and not realistic, and the privacy of the voyeur can be secured. In addition, security guards who monitor voyeurism only need to check whether or not it is a voyeur video, and it is not necessary to check the video in detail. Even if it is a video, it can be sufficiently utilized as information for determining whether there is a voyeurism around the voyeurism detection device.

  The voyeurism detection system according to the present invention is a voyeurism detection system for detecting a video signal transmitted from a voyeur, a receiving means for receiving a radio wave, and a detection unit for detecting the video signal by converting the received radio wave A voyeurism detection device comprising: a determination unit that determines an alarm when the detection unit detects a video signal; and a notification unit that transmits an image of the video signal to a remote monitoring center when the determination unit determines the alarm; A monitoring center having a communication unit that receives a video from the voyeurism detection device, a video processing unit that blurs the received video, and a display unit that displays the video that has been blurred by the video processing unit; Consists of

  This makes it possible to centralize high-load video processing at the monitoring center, reduce the load and cost of the voyeurism detection device that detects voyeurism in the area where voyeurism is monitored, and consider the privacy of the voyeur. The presence or absence of voyeurism and the approximate installation position of the camera can be confirmed.

  According to the voyeurism detection device and the voyeurism detection system according to the present invention, an image that may be transmitted from a voyeur camera can be displayed in a blurred state, and even if it is a voyeurized image, Privacy of a person can be ensured.

  Further, according to the voyeurism detection device and the voyeurism detection system according to the present invention, whether or not the image is a voyeur image based on rough information obtained by visually recognizing the image, even if the image is unclear, In addition, it is possible to determine the approximate position where the voyeur camera is installed.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
FIG. 1 is a configuration diagram showing a voyeurism detection system using the voyeurism detection apparatus of the present invention.
The voyeurism detection system is configured by connecting a voyeurism detection apparatus 1 installed in a voyeurism monitoring area 4 and a remote monitoring center 2 via a communication network 3. In the present embodiment, a CD / ATM corner of a financial institution will be described as an example of the sneak shot monitoring area 4. Note that the voyeur surveillance area 4 is not limited to this, and depending on the situation where there is a possibility of voyeurism, a toilet, a changing room, a house, or the like becomes a voyeur surveillance area.

  Here, the voyeur camera 5 used for the voyeur action modulates the video signal photographed by the CCD element to a predetermined frequency and transmits it as a radio wave signal. As the transmission frequency, one using a frequency in the UHF region, particularly a frequency of 900 MHz to 2.5 GHz is widely known. The voyeur receives the radio signal transmitted from the voyeur camera 5 with the receiver he / she possesses, and decodes the received radio signal to view the voyeur video.

  The voyeurism detection device 1 searches for a video signal from the voyeur camera 5 while sequentially switching the frequency to be received. When the video signal is received, it is determined that there is a possibility that the video is from the voyeur camera 5. The received video signal is subjected to a predetermined blurring process, and a notification signal including the blurred video is transmitted to the monitoring center 2.

  The monitoring center 2 is a facility equipped with a server system operated by a security company, and includes a communication unit 21 that communicates with the voyeurism detection apparatus 1 and a display 22 that displays various types of information. A person is monitoring the voyeur surveillance area 4. In addition, the monitoring center 2 includes information on a facility that becomes the voyeur surveillance area 4, information on the voyeurism detection device 1 installed in the voyeur surveillance area 4, information on an administrator of the voyeur surveillance area 4, etc. It has a database that stores and manages the name, address, telephone number, name of the monitoring area manager, manager's address, manager's telephone number, management number of the voyeurism detection device 1, past handling history, etc. Yes.

In the monitoring center 2, information on the voyeur surveillance area 4 to be dealt with based on the notification signal received from the voyeurism detection apparatus 1 and the received video are displayed on the display 22. Then, the monitor looks at the information and video of the displayed voyeur surveillance area 4 and determines whether or not the video is a voyeur video.
If it is determined that the video has been voyeurized, the monitor takes necessary measures such as confirmation processing for the administrator of the voyeur surveillance area 4 and instructions for the guard to deal with the voyeur surveillance area 4. On the other hand, if it is determined that it is not a voyeurized video, the terminal is operated to transmit a stop signal to the voyeurism detection device 1 via the communication unit 21 to stop the transmission of the video.

Here, in the monitoring center 2, the video received from the voyeurism detection device 1 is a blurred image, but compared with the information in the voyeur surveillance area 4, the video related to the voyeur surveillance area 4 (that is, a voyeurized video). Confirm whether or not. Specifically, the monitor refers to a floor plan of the voyeur surveillance area 4 which is information on the facility to be the voyeur surveillance area 4, a photograph showing the installation status, and the like, and the received blurred image shows the voyeur surveillance area 4. It is determined whether or not the image is related to the voyeur surveillance area 4 by comparing the captured image. The blurred image will be described later in detail.
Further, when compared with the contents of the TV broadcast in the voyeur surveillance area 4 at the time when the voyeurism detection apparatus 1 receives the video signal, there is no misjudgment even if a TV broadcast wave is detected. .

<Voyeurism detection device>
Next, the voyeurism detection apparatus will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the voyeurism detection apparatus.
The voyeurism detection device 1 controls an antenna 11 that receives radio waves, a detection unit 12, a determination unit 13, a video processing unit 14, a notification unit 15, a power supply unit 16 that supplies power to each unit, and each unit. The control unit 17 is generally configured.
The control part 17 is implement | achieved by CPU, memory, etc., and controls each part of the voyeurism detection apparatus 1 according to the various programs memorize | stored in memory.

  The detection unit 12 includes a tuner 121 and an IF detection unit 122, receives an input of radio waves received by the antenna 11, converts the received radio waves, and detects a video signal. The controller 17 causes the tuner 121 to automatically search for a radio signal by sequentially specifying a frequency range of 900 MHz to 2.5 GHz at predetermined intervals (for example, 6 MHz intervals) and outputting a tuning signal. The tuner 121 receives radio waves received by the antenna 11. The tuner 121 selects a radio wave having a designated frequency in accordance with a tuning signal from the control unit 17, converts it to an intermediate frequency signal, and outputs it to the IF detection unit 122. When receiving the intermediate frequency signal, the IF detector 122 amplifies the intermediate frequency signal and detects it to detect the video signal.

  The determination unit 13 outputs an alarm signal to the control unit 17 when the video signal is output from the IF detection unit 122. When the alarm signal is input, the control unit stops the auto search based on the tuning signal designating the next frequency for a predetermined time (for example, 10 seconds), and continuously detects the radio signal having the frequency currently designated by the detection unit 12. To receive. Then, the control unit 17 outputs the video signal input from the detection unit 12 to the video processing unit 14.

The video processing unit 14 includes an unsharp processing unit 141 and a compression unit 142, and performs a process of blurring the video input from the control unit 17, compresses the video, and outputs the compressed image to the control unit 17.
The blur processing unit 141 converts the input video signal into a digital video. At this time, the sampling density of the digital video is coarsened and output as a low resolution video. The resolution of the output video is a vertical direction 66 × horizontal direction 70 which is a resolution of about one fifth of the vertical direction 330 × horizontal direction 350 which is a general resolution of NTSC. Such blurring processing results in a blurry image that cannot be analyzed for the PIN that is most problematic in the case of CD / ATM sneak shots. Obtainable.
The compression unit 142 compresses the video data output from the unclear processing unit 141 with a predetermined codec and outputs the compressed video data to the control unit 17.

Note that the blurring process performed by the blurring processing unit 141 is not limited to the above-described process.
For example, the blurring process may be a process of converting a video signal into a digital video and masking pixels in a predetermined area in the video with a single color. In particular, since the target of voyeurism is often located in the central area in the video, it is effective to set the masking area as the central area of the video. Note that the monitoring person determines whether the video is related to the voyeur surveillance area 4 based on the video of the unmasked area.

  The blurring process may be a process of converting a video signal into a digital video and reducing the color. In particular, it is preferable to reduce the degree of color reduction to monochrome binary video. In the case of monochrome binary video, since the silhouette of the object to be photographed is known, it is possible to determine whether or not the video is related to the voyeur surveillance area 4, but it is not a detailed video of the person to be photographed, so privacy is to be protected. Can do.

  The blurring process may be a process of converting a video signal into a digital video and converting it into a gray-edge image. In the case of a gray edge image, the structure part of the building (floor, column, wall distinction, etc.) becomes clear, it becomes easy to determine whether the image is related to the voyeur surveillance area 4, and the details of the subject Because it is not a good image, privacy can be protected.

  The blurring process is not limited to the above-described processes as long as the video signal output from the detection unit 12 and input to the video processing unit 14 is deteriorated, and may be realized by other processing methods. Good. Further, each of the above-described processes, that is, a process for reducing the resolution, a mask process for a predetermined area, a color reduction process, a light / dark edge imaging process, or a combination of all processes may be used.

  The reporting unit (output unit) 15 communicates with the monitoring center 2 via the communication network 3. When an alarm signal is input from the determination unit 13, the control unit 17 sends a notification signal including the video data compressed by the compression unit 142 and predetermined notification data from the notification unit (output unit) 15 to the monitoring center 2. Send to.

<Description of operation>
Next, the operation of the above-described voyeurism detection apparatus 1 will be described.
When the theft detection device 1 is installed in the theft monitoring area 4 and turned on, the control unit 17 outputs a tuning signal designating a reception frequency to the tuner 121 (step ST1). The reception frequency is specified from the frequency range of 900 MHz to 2.5 GHz.

  The detection unit 12 selects the frequency specified by the tuning signal from the control unit 17, converts the received radio wave into an intermediate frequency signal, amplifies it, and detects the video (step ST2). If no video signal is detected by the detection unit 12 (step ST3-No), the process returns to step ST1, and the control unit 17 specifies the next reception frequency and outputs a tuning signal. That is, the control unit 17 sequentially designates a frequency range of 900 MHz to 2.5 GHz by the tuning signal, thereby causing the detection unit 12 to automatically search these frequency ranges and search for radio waves from the voyeur camera 5.

  On the other hand, when a video signal is detected by the detection unit 12 (step ST3-Yes), the determination unit 13 determines an alarm and outputs an alarm signal to the control unit 17 (step ST4). When the alarm signal is input, the control unit 17 stops the output of the tuning signal, stops the auto search, and causes the detection unit 12 to continuously receive the currently designated frequency (step ST5). And the control part 17 starts the time measurement by operating the time measuring means which is not shown in figure (step ST6).

  The video signal detected by the detection unit 12 and input to the control unit 17 is output to the video processing unit 14. The video processing unit 14 converts the input video signal into a digital video and executes a process for blurring the video (step ST7). As the blurring process, as described above, a process of outputting as a low-resolution video is executed. Note that, as described above, as the blurring process, a process such as a process of masking a central portion in a video or a process of outputting as a monochrome binary video may be employed.

The blurred image is compressed by the image processing unit 14 (step ST8). Then, the obtained video data is sequentially transmitted to the monitoring center 2 as a report signal by the report unit 15 (step ST9).
As a result, the video signal detected in the voyeur surveillance area 4 is transmitted to the monitoring center 2 as a blurred video. In the monitoring center 2, the surveillance staff refers to the unclear video and determines whether it is a voyeur video, that is, whether there is a voyeur act in the voyeur surveillance area 4 and where the voyeur camera 5 is in the voyeur surveillance area 4. Determine if it is installed. As a result, even if the video transmitted to the monitoring center 2 is a voyeur video, the details of the private video of the voyeur camera can not be seen by the monitor, and the privacy of the voyeur video camera can be secured. Can do.

  Here, if the time measured by the time measuring means has passed the predetermined time (step ST10-Yes), the transmission of the video data by the reporting unit 15 is stopped (step ST12), the process returns to step ST1, and the detection unit 12 Restart auto search by. The predetermined time measured by the time measuring means is a time for stopping the auto search, continuously receiving the video signal, and notifying the monitoring center 2 and is set to 10 seconds, for example.

  On the other hand, if the time measured by the time measuring means has not reached the predetermined time in step ST10 (step ST10-No), it is determined whether or not a stop signal has been received from the monitoring center 2 (step ST11). If the stop signal has not been received from the monitoring center 2 (step ST11—No), the video signal received and output by the detection unit 12 is subsequently blurred and the video data is sent to the monitoring center 2.

  On the other hand, when the stop signal is received from the monitoring center 2 (step ST11-Yes), the transmission of the video data by the notification unit 15 is stopped (step ST12), the processing is returned to step ST1, and the auto search by the detection unit 12 is resumed. Let

  As described above, according to the voyeurism detection system of the present embodiment, the video that may have been transmitted from the voyeur camera 5 can be output in a blurred state, and even if it was a voyeurized video, The privacy of the voyeur can be secured. In addition, even if the image is unclear, it is possible to determine whether or not it is a voyeurized image by visually recognizing the image, and to determine the approximate position where the voyeur camera 5 is installed. It can be used as a reference, and it is possible to appropriately monitor and detect voyeurism.

  In the above-described embodiment, the monitoring center displays and confirms the video, but the voyeurism detection device includes a display unit such as a liquid crystal monitor, and the video that has been subjected to the blurring process by the video processing unit is displayed. It is good also as a structure output-displayed on a display part. Moreover, it is good also as a structure which outputs the image | video by which the smearing process was carried out to the portable terminal which a security guard possesses from a voyeurism detection apparatus. As a result, it is possible for a security guard resident in the voyeur surveillance area to cope with the voyeur act on the spot without waiting for a countermeasure instruction from the surveillance center by watching the video displayed on the display unit or terminal.

In the above-described embodiment, the video signal is blurred by the voyeurism detection device and transmitted to the monitoring center. For this reason, a high-speed CPU and video processing circuit that require a large load on the video processing unit are required. Therefore, a configuration may be adopted in which a video processing unit including a blur processing unit is provided in the monitoring center, and the blur processing is performed in the monitoring center.
In this case, the video processing unit of the theft detection device compresses the video signal output from the detection unit and input to the video processing unit with a predetermined codec and outputs the compressed video signal to the control unit. The control unit transmits a notification signal including the input video data and predetermined notification data from the notification unit to the monitoring center. In the monitoring center, the video processing unit expands the video data included in the received notification data, performs the above-described smearing process, and displays the smeared video on the display.
By configuring in this way, it is not necessary to provide the smearing processing unit in the voyeurism detection device, and in addition to the effects of this embodiment described above, the load on the voyeurism detection device is reduced, and the CPU and video processing circuit are inexpensive. There is an effect that things can be adopted.

The figure which shows the structure of the voyeurism detection system of this invention The figure which shows operation | movement of the voyeurism detection apparatus of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Spy camera detection device 2 Monitoring center 3 Communication network 4 Spy camera monitoring area 5 Spy camera 11 Antenna 12 Detection part 13 Determination part 14 Image | video process part 15 Notification part 16 Power supply part 17 Control part 21 Communication part 22 Display

Claims (5)

A voyeurism detection device for detecting a video signal transmitted from a voyeur camera,
A receiving means for receiving radio waves;
A tuner that repeatedly changes the frequency of the received radio wave in a predetermined frequency range;
A detector for detecting a video signal from the output signal of the tuner;
A video processing unit for blurring the video of the video signal detected by the detection unit;
An output unit that outputs the image that has been subjected to the blurring processing by the video processing unit;
A voyeurism detection device characterized by comprising:
The voyeurism detection apparatus according to claim 1, wherein the video processing unit performs a process of reducing a resolution of a video by a video signal detected by the detection unit as the blurring process.
The voyeurism detection apparatus according to claim 1, wherein the video processing unit performs a process of masking a predetermined area of a video by a video signal detected by the detection unit as the blurring process.
The voyeurism detection apparatus according to claim 1, wherein the video processing unit performs a color reduction process on video based on a video signal detected by the detection unit as the blurring process.
A voyeurism detection system for detecting a video signal transmitted from a voyeur camera,
A receiving means for receiving radio waves;
A tuner that repeatedly changes the frequency of the received radio wave in a predetermined frequency range;
A detector for detecting a video signal from the output signal of the tuner;
A determination unit for determining an alarm when the detection unit detects a video signal;
A voyeurism detection device having a reporting unit that transmits the video signal to a remote monitoring center when the determination unit determines the warning;
A communication unit for receiving video from the voyeurism detection device;
A video processing unit for blurring the received video;
A voyeurism detection system including a monitoring center having a display unit that displays the image that has been subjected to the blurring processing by the video processing unit.

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