JP5481632B2 - Surveillance camera system and operation method thereof - Google Patents

Description

  The present invention relates to a monitoring system characterized in that an image is encrypted and stored under a specific condition, and an operation method thereof.

Conventionally, in a surveillance camera system, an image stored by an owner of a camera that constitutes the system can be viewed. For this reason, when taking public places into view, there is often concern about the risk of privacy violations by ordinary passers-by.
It is said that there are 500,000 surveillance cameras in operation in London, and concerns about privacy violations are often expressed. On the other hand, in the July 7 and 2005 terrorist attacks in London, surveillance cameras made a decisive contribution to identifying suspects. The presence of surveillance cameras could not prevent terrorism, but the quick identification of suspects was a major contribution to society.
The installation of surveillance cameras has a great effect on crime prevention and identification of suspects, but at the same time, there is a concern about the danger of privacy infringement. However, with the spread of negative aspects of individualism represented by “unseen swaying”, worsening global security, and the rise of terrorism, the spread of surveillance cameras can no longer be stopped. It is thought that. Therefore, it is socially significant to extend the potential advantages of surveillance cameras and to suppress the potential disadvantages.

  Under such circumstances, a system using an interphone is disclosed in, for example, Patent Document 1 as a collective housing monitoring call system for an apartment or the like. In the system disclosed in this document, there are cases where a resident is displayed an image of another person and there is a privacy problem when trying to use an intercom for crime prevention purposes.

  Usually, in a surveillance camera system, a larger number of surveillance cameras are desirable. However, centralized management of video information from a plurality of surveillance cameras through a line has the problem of cost for line management. In the video that is taken by the surveillance camera, since unspecified persons other than the target person such as the suspicious person are captured as described above, the device that can be viewed by anyone, other than the target There was a problem that the privacy of the individual of the person was violated.

In order to solve these problems, for example, Patent Document 2 and Patent Document 3 have been proposed.
Patent Document 2 proposes that a user selects an image to be transmitted and transmits the image to the administrator, or transmits an image to the administrator only when a predetermined condition is satisfied. In some cases, depending on the user's judgment, it may be difficult to identify suspicious persons, etc. In the latter case, it may be possible for anyone other than the administrator to view the video, so that privacy can be protected. There is a problem that security cannot be secured.

  In Patent Document 3, in order to protect the privacy, an image taken by the imaging unit is stored in the storage unit, and the storage unit is collected so that the image can be browsed. When removing the storage means from the image pickup means, a password is required, and there is a problem that an image can be browsed if the collected storage means is analyzed.

JP 2007-150398 A (paragraph 0020) Japanese Patent Laying-Open No. 2005-303646 (Claims) JP 2005-159691 A (paragraph 0027)

Accordingly, the present invention provides a security camera system capable of greatly reducing the “risk of privacy infringement of general passers-by”, which has been the biggest obstacle in disseminating the concept of e-surveillance network promoted by the inventors. The purpose is to provide the operation method.
The concept of the e-surveillance network is intended to achieve the safety of the local community with a little effort of the general public by using widely spread IT based on altruism. (1) The e-security network can be easily and inexpensively realized with technologies (PC, software, camera, etc.) widely spread today.
(2) However, with the technology 10 years ago, it took a very large amount of money to keep monitoring 24 hours a day, 365 days a year, and it was virtually impossible for the general public to do it. It was.
(3) On the other hand, considering 10 years later, it is predicted that home computers will be installed in newly built houses and connected to TV intercoms, passenger cars will be intelligent and multiple CCD cameras will be introduced. Even if not, the same kind of social information infrastructure is expected to emerge sooner or later. In other words, in the near future, it is expected that the realization of the e-alert network concept will be an environment that can be realized without additional costs.
On the other hand, violent crimes such as kidnapping and robbery are frequently occurring in ordinary residential areas, and the lack of sighting information has become a problem each time. With that in mind, each and every citizen, sooner or later,
(1) “It is a citizen's responsibility to pay attention to what happens around his home.”
(2) “You should avoid going through your kidnapped children without looking at them.”
It will be required to make judgments and attitudes regarding the concept of e-Self Security Network, which is symbolized by the idea of
That is,
(1) If it is shown that “it can be realized at a small cost if it is motivated,” the excuse “busy and impossible.
(2) Each citizen is required to think about the merit and demerit (merits and demerits) of "what can be done easily (= paying attention 24 hours 365 days to the events that occur in front of home)".
(3) That is, “the danger of privacy infringement caused by watching the house” and “the risk of missing the suspected violent crime and the kidnapped child by not watching the house” Each citizen is required to carefully judge both of these.
(4) With modern science and technology represented by IT, each citizen will inevitably be given powerful abilities and will be asked how to use them. In this case, the choice of “not to use” is considered to be one of the choices with the responsibility as a citizen.

As a result of intensive investigations to solve the above problems, the present inventors have found the following solution.
That is, a new concept has been devised to clearly distinguish between “owner” and “viewer” of an image by storing the image in a concealed (encrypted) manner. By combining the above two concepts, the “dream security camera system” that almost completely eliminates the “possibility of privacy infringement” which can be said to be the single biggest drawback of security cameras will be realized.
The outline of the new concept of privacy protection that was invented is as follows.
(1) Thorough privacy protection by completely separating the “owner” and “viewer” of the image.
(2) The stored image is encrypted so that the “individual owner / operator” of the security camera system cannot view the stored image.
(3) Only a “designated image viewer” such as the police can decrypt the code and view the image.
(4) However, the police station which is the “right to view images” cannot view the images unless they obtain the understanding of each household who is the “owner” of the images and receive the images.
(5) Only when a situation that threatens the safety and security of the region (appearance of a suspicious person, occurrence of an incident or accident) occurs, each household provides an encrypted image to the police station. At the police station, the images are unencrypted and used for investigation.
(6) Unless a crime or the like occurs, the image is automatically deleted after a certain period without being viewed once.

In addition, the inventor of the present application makes a proposal (Japanese Patent Application No. 2007-205382) for the purpose of guaranteeing “encrypted storage”, in which the camera is sealed with a seal that is destroyed when peeled off. Has also proposed.
However, it is often inconvenient to encrypt all images acquired by the security camera. Therefore, this time, according to the “preset conditions”, a method has been devised which is divided into a case where an image is stored in a normal format and a case where an image is stored after encryption.
That is, the surveillance camera system according to the present application includes a determination unit for determining whether to conceal or not conceal an image shot according to a predetermined condition, and to conceal the image, as described in claim 1. An image concealment unit for image concealment, and a concealment release device for canceling concealment of the image configured separately from the image capturing device, wherein the image capturing device includes the image When the video recording medium for recording the image is detachably connected and the determination unit determines that the predetermined condition is satisfied, the video recording medium conceals the captured video And the video recording medium is removed from the imaging device and connected to the anonymity canceling device, so that the video recorded on the video recording medium is released from the confidentiality, and the imaging device and An interphone is configured by an information terminal for displaying video from the imaging device, and the determination means is configured such that the interphone does not function as the interphone, and at least the video from the imaging device is displayed on the information terminal. If not, it is determined that the predetermined condition is satisfied.
According to a second aspect of the present invention, in the surveillance camera system according to the first aspect, the video recorded on the video recording medium is transmitted for a predetermined time in a state where the video recording medium is connected to the photographing apparatus. The photographing apparatus includes a video erasing unit for erasing each time.
According to a third aspect of the present invention, in the surveillance camera system according to the first or second aspect, the video recording medium and information necessary for concealing the video are recorded in the photographing device. After the concealment information recording medium is selectively connected, the concealment information recording medium is connected to the photographing apparatus and the photographing apparatus reads information necessary for the concealment The concealment information recording medium is removed, the video recording medium is connected, and based on the information, the video concealment means is configured to conceal the video and record it on the video recording medium. And
According to a fourth aspect of the present invention, there is provided the surveillance camera system according to the third aspect, wherein the concealed information recording medium includes the video that has been released from concealment configured separately from the information terminal. Information necessary for the concealment is recorded only by a management display device for display.
According to a fifth aspect of the present invention, there is provided an operation method of the surveillance camera according to the present invention, wherein a determination unit for determining whether to conceal or not conceal an image shot according to a predetermined condition, and conceal the image. An imaging device including a video concealing unit for converting the image, and an anonymity canceling device for releasing the concealment of the video, which is installed and used separately from the imaging device, the imaging device and the a method of operating a surveillance camera system configured intercom the information terminal for displaying an image from the imaging device, the imaging apparatus, when the predetermined condition is determined to be satisfied by the determination means, wherein capturing apparatus and record concealing the captured image to the image recording medium for recording an image is detachably connected, the concealment releasing device is removed from the imaging device Releasing the concealment of the image recorded on the connected the video recording medium to the concealment releasing device, said determination means, the interphone is not functioning as the interphone, the photographing at least the information terminal When the video from the apparatus is not displayed, it is determined that the predetermined condition is satisfied.

According to the present invention, the “owner (photographer)” and the “viewer” of the video can be completely separated, and privacy can be thoroughly protected. Also, unless a crime or the like occurs, the video is automatically deleted after a certain period without being viewed.
In addition, by applying the surveillance camera system of the present invention to an interphone, the video captured by the imaging device is concealed and recorded on a video recording medium when the interphone is not used. There is no need to install a separate surveillance camera to improve the above. Furthermore, since the concealed video cannot be viewed even if it is a resident of a dwelling unit where the intercom is installed, even if a person other than the suspicious person is filmed, only a specific person can conceal it. Since the video can be viewed after being released, personal privacy is ensured.
In addition, the intercom is configured so that a video recording medium and a concealed information recording medium can be selectively connected. Only after the concealed information recording medium is connected, video is based on information necessary for concealment. Therefore, even if only the video recording medium is stolen, the video cannot be viewed, so that security can be ensured.
Further, if recording of information necessary for concealment to the concealment information recording medium is performed only by a specific management display device, there is no need for a dedicated device for recording the information, and further security Will improve.

As described above, the surveillance camera system of the present invention includes a determination unit for determining whether to conceal or not conceal an image captured according to a predetermined condition, and concealment for concealing the image. An imaging device provided with a means, and an anonymity canceling device for releasing the anonymity of the video, which is configured separately from the imaging device, and the video for recording the video on the imaging device The recording medium is configured to be connectable.
More specifically, the predetermined condition corresponds to a predetermined time zone, absence, etc. when a video recording medium is connected to the photographing apparatus. In addition, as a “preset condition”, an event that occurs on the time axis (such as when an interphone button is pressed or there is movement within a site) can be considered, but it is also possible to distinguish in space.
For example, the following two cases can be considered.
(1) Save the mosaic image outside the site in the normal format.
(2) Encrypt and store original images clearly visible outside the site.
In other words, in a single image, the owner's premises and the premises are distinguished, and those that are unclear, such as by applying mosaic to the part outside the premises, are saved in the normal format (and / or display) . At the same time, those with the same image quality as the part outside the site are kept confidential.
When such a condition is satisfied, the video is concealed by the concealment unit for concealing the video by the determination unit configured by an electronic circuit capable of executing the determination program. The concealed video is recorded on a video recording medium configured to be connectable to the photographing apparatus. Then, the video recorded on the video recording medium is released from the concealment by the concealment release device configured separately from the photographing device. And the image | video by which concealment was cancelled | released can be browsed by the management display apparatus comprised separately from the imaging device, for example. The anonymity canceling device may not be separated from the management display device. Further, the deciphering device may be connected to a recording device (USB memory, hard disk, etc.) that stores the decrypted file.
Note that the storage mode selected by the “determination means” can be freely set (selected) from the following three.
(1) Store without concealing.
(2) Conceal and save.
(3) Do not save.
The display method can be freely set (selected) from the following three.
(1) Display as it is.
(2) Display with a mosaic or the like.
(3) Not Display It is conceivable that the “save form” and “display form” can be set for each case freely from various combinations as described above.
By predetermining the conditions for concealment as described above, it is possible to obtain an understanding of the person being photographed, and as a result, privacy can be protected. Moreover, since the video recorded in the concealed state cannot be browsed unless the information necessary for concealment is input to the management display device, it has the management display device and knows the concealment information. Only the person who can view the image can be viewed, and the privacy of the photographed individual can be further ensured.

Note that a commercially available digital camera or the like having a function of photographing a subject can be used as the camera constituting the photographing apparatus.
The video concealment means includes a memory in which a program having a function for concealing video captured based on known encryption or the like is encrypted, a processor capable of executing the program, and the like. Calculation means corresponds. As a concealment method, a known method based on concealment information such as encryption can be used.
Also, as the deciphering device, there are a recording medium such as a memory in which a program having a function capable of deciphering encryption and the like, and an arithmetic device such as a CPU that is a means for executing the program. And can be executed by a normal personal computer.
The management display device can be executed by a normal personal computer or the like equipped with a display or the like so as to view a video whose concealment is released.
In addition, the video recording medium for recording video is something other than a hard disk or memory that directly records video from the imaging device and can be connected to the interphone from the outside. A memory card or a cartridge-type hard disk that can be used.
That is, the system based on this invention of Claim 1 can use the normal PC and camera which are marketed as hardware, and can use the exclusive thing based on this invention as software.
When the present invention is realized by a PC and software installed therein, the following algorithm can be considered as an example.
Algorithm (1) of software to be installed on a PC connected to a monitoring camera (1) Normally, images (still images, moving images) from the monitoring camera are concealed and stored.
(2) In a special case, for example, when the movement of the subject occurs within the owner's premises, the image is stored in a normal format.
(When the field of view of the surveillance camera covers the inside and outside of the site)
(3) The storage destination may be any form such as a hard disk or a USB memory.
Software for canceling concealment (1) Installed and used on a PC owned and managed by an image viewing right holder.
(2) It has at least one of the functions for displaying, printing, and saving the image that has been de-concealed.
Further, as proposed by the present inventor (Japanese Patent Application No. 2007-205382), it is preferable that the photographing apparatus is sealed with a sticker that peels off the photographing apparatus to be attached. It is because a higher effect is exhibited by using it together with the present invention.

  In the surveillance camera system, when a video recording medium is connected to the photographing apparatus, a video erasing unit is provided in the photographing apparatus so that the video recorded on the video recording medium can be erased at a predetermined time. It is preferable to provide it. This is because when a video is recorded for a long period of time, there is an increased risk that the concealment can be released. Unnecessary records are a necessary function to implement the basic strategy of leaving as little as possible. The video erasing means can be executed by a program having a function of erasing data recorded on a video recording medium such as a memory.

Next, in the surveillance camera system using the intercom of the present invention, the photographing device is arranged outside the dwelling unit, and an information terminal for displaying the video from the photographing device is arranged inside the dwelling unit, thereby forming the interphone, The determination means conceals the video when the video from the imaging device is not displayed on the information terminal.
A device constituting the interphone is provided with a commercially available interphone with a camera. The camera corresponds to the photographing device, and the information terminal is a liquid crystal display device connected to the camera. In addition, description of these means is only an example, and if it is outside a dwelling unit, ie, a call button, a light, a microphone, an infrared detection sensor, etc. If present, a speaker or the like may be provided.
In the photographing apparatus, the video from the photographing apparatus is processed in the following three cases. (1) Store without concealment. (2) Conceal and save. (3) Do not save. The display is processed in the following three ways. That is, (1) display. (2) Display with a mosaic or the like. (3) Not displayed. By displaying with a mosaic or the like, even an interphone operator can cope with a situation where it is not preferable to see a clear image.
For example, the following operation forms are possible. That is, the video from the imaging device continues to be captured even when it is not displayed on the information terminal. Then, in a state where no video is displayed on the information terminal, the video is concealed by the video concealment means. More specifically, the case where no video is displayed on the information terminal will be described. For example, in a state where the intercom call button is pressed and the resident is performing a response operation such as picking up the receiver of the information terminal. is there.
With the above configuration, when the interphone is not functioning as an interphone (the imaging device and the information terminal are not in a connected state), the video captured by the imaging device is used for crime prevention. This video can be viewed only by those who know the concealment information, that is, only those who have the authority to view it, using the management display device, so that the privacy of the photographed individual is protected. Can do.

Next, a more preferable aspect of the monitoring system using an intercom will be described.
The intercom is configured so that a video recording medium for recording a concealed video and a concealed information recording medium on which information necessary for concealing the video is recorded can be connected selectively. After the concealment information recording medium is connected to the image capturing device, the image capturing device reads information necessary for concealment, and based on this information, the image is concealed and can be recorded on the image recording medium. The concealed video recorded on the recording medium is preferably configured such that the concealment is released by the concealment release device and can be viewed by the management display device.
Further, the concealment information recording medium is a medium on which information necessary for concealment such as encryption is recorded and can be connected to the photographing apparatus from the outside, specifically, a removable memory card. Or a cartridge-type hard disk. By configuring these video recording medium and the concealment information recording medium by physically different recording media, the interphone first reads information necessary for concealment from the concealment information recording medium. Based on the above, the video imaged by the imaging device is concealed such as encrypted and recorded on the video recording medium.
In this way, the video recording medium and the concealment information recording medium are physically separate media, and by selectively connecting them, from the imaging device to which the video recording medium is normally connected, Even if the video recording medium is stolen, the security information can be secured because the confidential information is not recorded on the video recording medium. In addition, as a specific example of the configuration that can be alternatively connected, the connection can be performed by, for example, using one connection unit (connection port) for connecting memories of the same standard.

  Furthermore, it is preferable that information necessary for concealment is recorded on the concealment information recording medium only by the management display device. This is because further security can be ensured by inputting information necessary for concealment and browsing the concealed video with a plurality of devices. As described above, since the management display device can be a personal computer, software for recording information necessary for concealment to a concealed information recording medium, for example, software capable of recording a password on a memory card or the like. If it is not installed on the personal computer, it is impossible to implement.

Next, an embodiment of the present invention will be described more specifically with reference to FIG.
FIG. 1A shows an apparatus for recording information necessary for concealing an image on a concealment information recording medium, and is stored in a commercially available personal computer 1 (hereinafter abbreviated as “PC”). A card reader 2 is connected. The PC 1 is installed with software for inputting a cipher such as a personal identification number necessary for concealment. Then, a microSD card (registered trademark) 3 serving as a concealment information recording medium is inserted into the memory card reader 2, and the input encryption or encryption software based on the encryption is recorded.
Next, as shown in FIG. 2B, the microSD card 3 on which the encryption is recorded is inserted into the monitoring camera 4 as the photographing apparatus. At this time, the encryption or encryption software recorded on the microSD card 3 is automatically loaded into the surveillance camera 4. Then, the microSD card 3 is removed, and then another microSD card 5 serving as a video recording medium is inserted as shown in FIG.
Thereafter, the shooting is started, but the shot video is determined by a determination unit (not shown) when the surveillance camera 4 and the information terminal 6 are not connected, and encrypted according to the encryption. The data is recorded on the microSD card 5 which is a video recording medium.
After the photographing is completed, the microSD card 5 is removed and connected to the PC 7 to which the memory card reader is connected as shown in FIG. The PC 7 serves as a management display device, and is installed with software capable of browsing the video recorded on the microSD card 5 and software for decrypting the video by inputting the encryption. The encryption is input to the PC 7 and the video recorded on the microSD card 5 is decrypted, so that the video can be browsed for the first time.

  According to the above configuration, even if the microSD card 5 is stolen, since the encryption is not recorded on the microSD card 5, it is very difficult to view the video, thus improving security. Can be made. Further, by using a small recording medium such as the microSD card 5, it is not necessary to increase the structure of the surveillance camera 4, and it is not necessary to connect a PC or the like to the surveillance camera 4 when changing the encryption. . Further, by using a concealment information recording medium that is removable from the surveillance camera 4, information necessary for concealment cannot be directly input from the surveillance camera 4, so that security can be improved.

The surveillance camera 4 encrypts the video according to the encryption, the photographing unit functioning as a digital camera, the connection terminal with the external recording medium, the program for reading the encryption or encryption software from the confidential information recording means It is necessary to have a program for this as a component.
A specific configuration diagram of the surveillance camera is shown in FIG.
2 shows a state in which the microSD card 5 as an external recording medium is connected to the connection terminal 8 of the monitoring camera 4. As shown in the drawing, the microSD card 5 is connected to the CPU 11 in the same manner as the RAM 9 and the ROM 10, and the video from the photographing unit 12 is connected to the CPU 11 and the RAM 9 via the image processing IC 13. Further, in the illustrated example, a light 14 and an infrared sensor 15 are provided as additional functions of the photographing unit. When heat is detected by the infrared sensor 15, the light 14 can be turned on to take a picture, or only when a heat is sensed, a predetermined time can be taken.
With the above configuration, when the microSD card 3 of the concealment information recording medium is connected to the connection terminal 8, the file in the microSD card 3 is searched and the encrypted file is read into the RAM 9. Next, when the microSD card 3 is removed and the microSD card 5 is connected, the video from the photographing unit 12 is transferred to the CPU 11 via the image processing IC 13. At this time, the CPU 11 determines whether or not to conceal the video, and when concealing, the video is encrypted according to the encryption stored in the RAM 9 or with encryption software.

As described above, the photographing unit 12 is not particularly limited as long as it has a function equivalent to that of a normal digital camera. Note that in this specification, the subject to be photographed is not limited to a moving image, but also includes a still image. In the case of a moving image, the presence or absence of sound is not questioned.
Further, software for searching for a file in the microSD card 3 that is a concealment information recording medium and reading an encrypted file is recorded in the ROM 10 but has a file name with a specific extension. There is no particular limitation as long as a file in which encryption is recorded such as searching for a file can be specified by searching.
Similarly, software for encrypting video according to encryption is also recorded in the ROM 10 or read into the RAM 9, but can be performed by a known encryption method such as cipher. There is no particular limitation on the above.

  Further, the management display device used in the present invention is not particularly limited as long as it is software capable of browsing video (viewing in the case of a still image) such as a PC. Further, a dedicated DSP circuit or the like may be used without using a PC.

  Further, the concealment information recording medium and the video recording medium used in the present invention are not particularly limited. In addition to the microSD card, an SD card (registered trademark), a USB-connected flash memory, or the like can be used. .

In the above description, the present monitoring camera system has been described as an example of application to an interphone.
(1) Accident image recording device mounted on a taxi: A normal accident image recording device generally records high-definition moving images for several tens of seconds before and after an impact acceleration or the like is detected. It is conceivable that the present invention is applied to this and the image is encrypted and stored even when it is not. Even if the image to be encrypted and saved is a still image with an interval of about 0.5 seconds with reduced image quality, it can be expected to make a significant contribution to investigating and other crime investigations. It is more convenient to write time information and position information from GPS in the image to be stored at the same time.
(2) Application to in-vehicle cameras: In systems such as a CCD camera attached to the rear of the car for backward assistance and a camera attached to the front of the car for ordinary running assistance, these have been used for recording at all times. That was rare. e Based on the concept of the self-monitoring network, if each car is closely watching the surroundings, it is possible to create a society where there is almost no sighting information in terms of running away. However, in the dark, taking, recording, and browsing around the car can lead to privacy violations for the general public and it is considered difficult to obtain social permission. In addition to the use for the purpose of use (safe driving, etc.), storing all images with encryption for the purpose of providing to the investigating agency when something happens is to promote social safety. This is a very effective means. The additional cost required for this is sufficient, such as the cost required to modify the software and increase the memory capacity. For example, it is also effective to introduce the present invention into HHD navigation and encrypt and store images together with time and position information.
(3) In a normal security camera system that monitors the surroundings of a house, the landlord can only see the current image, the image is stored but encrypted, and the landlord cannot see it. This is also effective in reducing the risk of privacy infringement. Furthermore, it is conceivable that the image quality can be greatly reduced by mosaicing the image that can be seen by the landlord. It is also conceivable to limit the time that can be browsed continuously. The storage unit (for example, for 5 minutes) may be indoors, or may be integrated with the photographing unit and the determination unit. Moreover, about the image which is not encrypted, you may provide a display apparatus meaning and use for a landlord's browsing.
(4) In a normal security camera system that monitors the interior of the house and its surroundings, it is possible for the owner to view the video for a specific time before and after the moving object is detected within the house ground. Save with, otherwise encrypt and save. By doing so, it is possible to realize that the surroundings of the home are reliably observed while minimizing the invasion of privacy of general passers-by as much as possible while satisfying the performance and function as a normal security camera.

  INDUSTRIAL APPLICABILITY The present invention can be widely used industrially in fields where crime prevention is required, including a place where an interphone can be installed.

Explanatory drawing of the operation form of the surveillance camera system of the present invention Explanatory drawing of one embodiment of the surveillance camera system Explanatory drawing of the state where the concealment information recording medium or video recording medium of the embodiment is connected to the connection terminal of the surveillance camera

Explanation of symbols

1 Personal computer (PC)
2 Memory card reader 3 microSD card (confidential information recording medium)
4. Surveillance camera (photographing device)
5 microSD card (video recording medium)
6 Information terminal 7 Personal computer (management display device)
8 Connection terminal 9 RAM
10 ROM
11 CPU
12 Shooting Unit 13 Image Processing IC
14 Light 15 Infrared sensor

Claims (5)

An imaging device including a determination unit for determining whether to conceal or not conceal a video imaged according to a predetermined condition, and a video concealment unit for concealing the image;
A deciphering device configured to deconceal the video, which is configured separately from the photographing device;
A video recording medium for recording the video is detachably connected to the photographing device,
When the determination unit determines that the predetermined condition is satisfied by the determination unit, the captured image is concealed and recorded on the video recording medium,
By removing the video recording medium from the photographing device and connecting to the deconcealment device, the video recorded on the video recording medium is released from the concealment,
An interphone is constituted by the photographing device and an information terminal for displaying video from the photographing device,
The determination unit determines that the predetermined condition is satisfied if the interphone does not function as the interphone and at least the video from the photographing apparatus is not displayed on the information terminal. Surveillance camera system.   In the state where the video recording medium is connected to the photographing apparatus, the photographing apparatus includes a video erasing unit for erasing the video recorded on the video recording medium every predetermined time. The surveillance camera system according to claim 1. The video recording medium and a concealment information recording medium on which information necessary for concealing the video is recorded can be selectively connected to the photographing apparatus, and the concealment is performed on the photographing apparatus. After connecting the information recording medium and reading the information necessary for the imaging device to conceal, the concealment information recording medium is removed, the video recording medium is connected, and based on the information, The surveillance camera system according to claim 1 or 2, wherein the video concealment means is configured to conceal the video and record it on the video recording medium.   On the concealment information recording medium, information necessary for concealment is recorded only by a management display device configured to display the video whose concealment is released, which is configured separately from the information terminal. The surveillance camera system according to claim 3, wherein the surveillance camera system is configured as described above. An imaging device including a determination unit for determining whether to conceal or not conceal an image captured according to a predetermined condition, an image concealing unit for concealing the image, and the image capturing device A deconcealation device for deciphering the video, which is installed and used separately, and the interphone is configured by the imaging device and an information terminal for displaying the video from the imaging device A method of operating a camera system,
When the determination unit determines that the predetermined condition is satisfied by the determination unit , the image capturing apparatus conceals the captured image on a video recording medium for recording a removably connected image. Record
The deconcealment device releases the concealment of the video recorded on the video recording medium removed from the imaging device and connected to the concealment release device,
The determination unit determines that the predetermined condition is satisfied if the interphone does not function as the interphone and at least the video from the photographing apparatus is not displayed on the information terminal. How to operate the surveillance camera system.

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