JPH1141494A - Camera identification device and image monitoring system using the device - Google Patents

Abstract

(57) [Summary] The present invention relates to an image monitoring device for inspecting and monitoring plant equipment and an image monitoring system using the device, and more particularly to an image monitoring device and a computer for displaying an equipment monitoring screen. It is therefore an object of the present invention to provide an image monitoring device and an image monitoring system that do not need to produce an interface or the like that requires time and labor. SOLUTION: The present invention has 16 television cameras 1-1.
The video supplied from 6 is switched by the video switching device 17b in the image monitoring device 17, and the video signal is output to the monitoring screen display device 21 and the image recording device 22 which are constituted by personal computers. At this time, in order to determine which of the television cameras 1 to 16 the video signal output from the video switching device 17b has been photographed, the identification display such as the camera number added by the image processing device 20 is performed using a neural network. By supplying this information to the monitoring screen display device 21 and the image recording device 22, the monitoring screen display device 21 and the image recording device 22 can use any of the television cameras to output video signals input via the video switching device 17 b. It is easy to determine whether the image is a captured image.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention centrally manages a plurality of, for example, television cameras arranged in a plant facility or the like.
The present invention relates to an image monitoring device for performing inspection and monitoring of plant equipment based on video information obtained from the plurality of television cameras, and an image monitoring system using the device.

[0002]

2. Description of the Related Art Today, a plurality of television cameras are used for inspection and monitoring of plant equipment, and images taken by the television cameras are displayed on a monitor television to inspect the equipment. In particular, the above-mentioned system is widely used for equipment such as road conditions in a tunnel, a nuclear reactor, and the like, which are difficult to monitor. Normally, in the above-described image monitoring system, the images of a plurality of television cameras installed are switched and monitored by an image switching device. The switching of the television image is performed by the image switching device at a fixed cycle or a preset cycle.

In addition to the above-mentioned television monitor, a system for displaying a facility monitoring screen on a display of a computer (for example, a personal computer) and displaying a monitoring state of plant equipment on the facility monitoring screen is also used. Usually, the equipment monitoring screen displayed on the display described above displays the arrangement configuration of the television cameras placed in the monitoring area, the monitoring status, the monitoring results, and the like, and displays the image captured by the television camera on the equipment monitoring screen. Some systems can display up to (monitor).

[0004] On the other hand, a picture taken by a television camera is recorded on a video recorder, and at this time, information of a television camera number and a monitoring place is also superimposed and recorded. The reason why the information of the TV camera number and the monitoring place is superimposed on the recorded video is for later management, and is to know the shooting position of the video when reproducing the recorded video. The information of the TV camera number and the monitoring place is superimposed on the video by the title generator, and the output of the title generator is performed in synchronization with the video switching timing of the video switching device.

[0005]

However, the conventional system has the following problems. (A) First, in the conventional system, it is necessary to know the number of the TV camera that is shooting the image in order to know the shooting position of the shot image displayed on the TV monitor. Therefore, the image switching device and the computer are linked. Interface needed. That is, an interface for controlling the switching of the video switching device by the control signal output from the computer, selecting the television camera, and informing the computer of the number information of the television camera supplying the selected video is required. Also, control software for performing such control was required. (B) In addition, the above interface and control software
It is necessary to match the specifications of the computer to be used, and creating the above-described interface and control software for computers with different specifications for each manufacturer was a time-consuming and expensive operation.

[0006] In order to solve the above-mentioned problems, the present invention does not require any special cooperation between a computer and a video switching device.
An image monitoring device that can easily determine the number of a television camera that supplies an image projected on a television monitor or a facility monitoring screen, does not require the production of an interface that requires time and effort, and an image monitoring system that uses the device. To provide.

[0007]

According to the first aspect of the present invention, there are provided cameras provided at a plurality of monitoring locations, and photographed image switching means for selecting an image to be photographed by the cameras. Recognizing an identification display combined with the captured image by the identification display combining unit with the identification display of the camera on the captured image selected by the captured image switching unit; This can be achieved by providing a camera identification device having identification means for identifying a camera that has captured a captured image.

Here, the camera is an imaging device such as a television camera, a digital still camera, a digital video camera, etc., and the cameras are installed at a plurality of monitoring locations. The photographed image switching means switches the image photographed by the camera at a fixed cycle or a preset cycle, and selects an image photographed by, for example, one camera from among a plurality of cameras. The image data selected at this time is not limited to one, and may be two or more.

The identification display synthesizing means is an apparatus for synthesizing the identification display of the camera which has photographed the image data selected by the photographed image switching means with the image data.
For example, it is synthesized as a telop with a captured image. Further, the identification display synthesizing means recognizes the identification display of the camera added to the captured image, and identifies the camera that has captured the selected image.

[0010] With this configuration, images captured by cameras provided at a plurality of monitoring locations are arbitrarily switched by the captured image switching means, an identification display is added to the selected image, and the display is later recognized by image recognition. By simply doing so, the relationship between the captured image and the camera that captured the image can be easily recognized, and the shooting position (shooting location) of the image monitored on the television monitor can be easily recognized.

According to the second aspect of the present invention, a camera provided at each of a plurality of monitoring locations,
Photographed image switching means for selecting an image to be photographed by the camera, identification display combining means for composing an identification display of the camera with the photographed image selected by the photographed image switching means, and photographing by the identification display combining means A camera identification unit having identification means for recognizing the identification display combined with the image and identifying a camera that has captured the selected captured image; a camera identified by the camera identification unit; and a monitor captured by the camera. This can be achieved by providing an image monitoring system including an output unit that outputs information related to a place, and a monitoring screen display device that controls display of a monitoring screen based on the information supplied by the output unit.

The present invention is an invention in which the camera identification device according to claim 1 is applied to an image monitoring system. As described above, a camera that has captured an image using, for example, a neural network is recognized, and the output means recognizes the camera. The related information between the selected camera and the monitoring location captured by the camera is output to the monitoring screen display device.

[0013] With this configuration, the monitoring screen display device performs the display processing of the monitoring screen based on the related information supplied from the output means, and the image to be monitored on the monitoring screen can easily be obtained by using any camera. Can be displayed.

An object of the present invention is to provide a camera provided at a plurality of monitoring locations, a photographed image switching means for selecting an image photographed by the camera, and a photographed image switching means. For the image selected by
Identification display combining means for combining the identification display of the camera;
A camera identification unit having identification means for recognizing an identification display obtained by synthesizing the photographed image by the identification display composition means and identifying a camera for photographing the selected photographed image; and a camera recognized by the camera identification unit. This is achieved by providing an image monitoring system comprising: an output unit that outputs information related to a monitoring location captured by the camera; and an image recording apparatus that records and processes the captured image in accordance with the information supplied by the output unit. it can.

The present invention is also an application of the camera identification device according to the first aspect of the present invention to an image monitoring system. As described above, a camera that has captured an image using, for example, a neural network is recognized, and the output means recognizes the camera. The related information between the camera that performed the monitoring and the monitoring location where the camera captured is output to the image recording device.

With this configuration, the image recording apparatus controls the recording of the photographed image based on the related information supplied by the output means, and easily knows which camera the recorded image has been photographed. Can be.

Claim 4 makes the invention of claim 1 or 2 or 3 more concrete.
The recognition of the identification display performed by the identification means uses, for example, a neural network.

In this embodiment, the identification display is recognized using a neural network. With such a configuration, the identification display of the identification display can be performed more accurately, and the camera that has captured the image can be more accurately processed. An image monitoring system can be provided that can identify related cameras, grasp information related to the identified cameras and monitoring locations photographed by the cameras, and perform display processing of monitoring screens.

The fifth aspect of the present invention makes the invention of the first, second, third, or fourth embodiment more specific, and the identification of the camera is, for example, a camera number. That is, by using the identification number as the camera number, the images captured by the cameras provided at the plurality of monitoring locations are arbitrarily switched by the captured image switching means, the camera number is added to the selected image, and this camera number is later added to the selected image. Learning is performed by weighting processing using a neural network or the like, so that the relationship between a captured image and a camera that has captured the image can be easily recognized, and the shooting position (shooting location) of the image monitored by the television monitor can be easily recognized.

[0020] The description of claim 6 makes the invention of claim 1, or 2, or 3, or 4 more specific, and the camera is, for example, a television camera. In this example, a television camera is used as a camera to be used, and an NTSC signal output from the television camera is used.

[0021] Claim 7 also makes the invention of claim 1 or 2 or 3 or 4 more specific, and the camera is, for example, a digital still camera. In this example, a digital still camera is used as a camera to be used. Photographs are taken at predetermined time intervals, and camera identification processing is performed using still images. In this case, the digital still camera is installed at a plurality of monitoring locations, the captured image switching means captures an image captured by the digital still camera at a fixed cycle or a preset cycle, and the identification display combining means , A camera identification such as a camera number is added.

With this configuration, it is possible to perform image recognition on the identification display of the camera added to the captured image, identify the digital still camera that has captured the recognized image, and use the cameras provided at a plurality of monitoring locations. By simply recognizing the image to be processed later, the shooting position (shooting place) of the monitored image can be easily identified.

[0023] Claim 8 also makes the invention of claim 1, or 2, or 3, or 4 more concrete, and the camera is, for example, an ITV camera. The camera is the above-mentioned TV camera, digital still camera, IT
The camera is not limited to the V camera, and may be constituted by another camera such as a digital video camera.

[0024]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram of an image monitoring system in which a plurality of television cameras are installed for monitoring and inspecting a certain plant facility. In this example, a plant facility, for example, an image monitoring system for a tunnel facility on a highway will be described.

In the figure, the image monitoring system of this embodiment has 16 monitoring television cameras 1 to 16 and an image monitoring device 1.
7, two television monitors 18 and 19, image processing device 2
0, a monitoring screen display device 21, and an image recording device 22. The 16 TV cameras 1 to 16 are provided in a tunnel provided on a highway, and the TV cameras 1 to 16 are provided.
8 is provided on the up lane side, and the television cameras 9 to 16 are provided on the down lane side.

FIG. 2 shows the arrangement positions of 16 television cameras provided in the tunnel. As shown in the figure, a television camera 1 (note that the numbers are enclosed in squares in the figure, and the numbers 2 and below are similarly shown) is disposed near the entrance of the up lane. The television cameras 8 are disposed near the exit of the tunnel, and are disposed at equal intervals on the far side of the tunnel with the television cameras 3, 4,... Similarly, the same applies to the television cameras 9 to 16 arranged on the down lane side.
Is located near the entrance of the down lane and has a TV camera 1
0 is disposed at the back of the camera.
.. Are arranged at equal intervals on the back side of the tunnel, and the television camera 16 is arranged near the exit of the tunnel.

The image monitoring device 17 includes an image input device 17
a, a video switching device 17b, and a control device 17c. The video signals from the above 16 TV cameras are
The image is input to the image input device 17a of the image monitoring device 17,
The video switching device 17b controls 16 television cameras 1 to
16 images are switched, and the television monitors 18 and 19 are switched.
Output a video signal. The observer of the expressway monitors the situation in the tunnel by watching the images displayed on the television monitors 18 and 19.

The image monitoring device 17 and the image processing device 2
The monitoring screen display device 21 and the image recording device 22 are connected via a network such as Ethernet, and the control device 17c of the image monitoring device 17 controls this network.

The monitor screen display device 21 is composed of, for example, a personal computer, and its CRT display 2
A monitoring screen is displayed at 1 '. Therefore, the monitoring screen display device 21 has a CPU, a ROM, an EEPROM, a RAM,
It has a control unit composed of a RAM (video RAM) and the like, and the ROM has a built-in monitoring screen display program.

The image recording device 22 includes television cameras 1 to 16
This is a device for recording a video taken by a personal computer. Specifically, the device is configured by a large-capacity memory (for example, a video tape storage unit) provided in a personal computer, and stores a large amount of video data in this memory. The image recording device 22 also includes, for example, a personal computer, and thus includes a control unit including a CPU, a ROM, a RAM, a memory control unit, and the like.
2 'displays the recording state of the video data and the like.

On the other hand, the image processing device 20 is a device for associating the information of the monitoring place with the camera number, and uses, for example, a personal computer. As described above, the captured image is stored and managed in the image recording device 22, and the monitoring screen display device 2
In order to display a monitoring screen on one CRT display 21 ', it is necessary to associate the monitoring location information with the camera number, and this control is performed by this apparatus. That is, it is a device that recognizes the camera number of the video data of the TV cameras 1 to 16 and obtains information on the monitoring location of the video data.

The control operation of the camera identification device having the above configuration and the image monitoring system using the device will be described below. In this example, the neural network is divided into a weight learning process for identifying a camera number in advance using a neural network, and a process for identifying a camera number actually superimposed on a television image based on information obtained by the learning process. . This will be described below. << Weighting Learning Process >> First, the weighting learning process by the image processing device 20 will be described.

FIG. 3 shows an image photographed by the television camera, and an identification display which indicates the arrangement of the television camera is superimposed on this image. For example, the number of the television camera and the information of the place where the present system is arranged are added to the superimposition. Also,
The addition of this information is superimposed on the video by, for example, a title generator.

Here, in the case of the example of FIG. 3, "FUJI TN UP 08" is displayed in the lower left portion of the photographed image. This “08” part corresponds to the camera number,
The display of “Fuji TN going up” is the name of the tunnel where the present system is installed, and the up lane or the down lane. Therefore, in this example, it is assumed that the location of the surveillance system is known, and the location of each camera arranged in the system is specified by a numerical value “08”. Therefore, for weight learning using neural networks,
Learn to recognize the displayed numbers accurately.

This learning is performed, for example, by using an accurate numerical value as teacher data using a back propagation method. This time, the neural network uses a three-layer structure of an input layer, a middle layer, and an output layer. The input layer is 16 × 8, the intermediate layer is 16, and the output layer is 8 (determination 01 to 01).
08). The threshold used for the determination was 0.5. FIG. 4 is a diagram showing the configuration of the above-described three-layered neural network.

With this configuration, a predetermined weighting value is set when recognizing a numerical value added to a video image of a television camera, and can be used for subsequent recognition processing. << Processing for Identifying Camera Number >> Next, processing for identifying a camera number actually added to a captured image using the above result will be described.

FIG. 5 shows an example of a monitor screen displayed on the CRT display 21 'of the monitor screen display device 21. In addition, a search screen for probing a monitoring target image is also displayed on the monitoring screen. Note that the above-described monitoring screen is a screen 24 shown on the left side of the figure, and a search screen is a screen 2 shown on the right side of the figure.
5

First, on the monitoring screen 24 of the CRT display 21 ', a camera arrangement position display section 26, a monitoring result display section 27, a running state display section 28, and a menu display section 29 are arranged. The camera arrangement position display section 26 is a display schematically representing the arrangement of the television cameras in the tunnel as described above, and is filled with a black mark indicating the camera position of the number selected by the video switching device 17b. . The monitoring result display unit 27 also has the above-described video switching device 17b.
Displays the monitoring result of the television camera (for example, the television camera 8) selected. For example, in the example of FIG.
The second TV camera 8 is selected, and it is found that the monitoring point is the upward camera “08”. The monitoring result display unit 27 also displays date and time data. For example, if there is a "falling object" at the monitoring location, the display (detection result display) is also performed. In addition, the traveling state display unit 28 displays, for example, the number of passing vehicles and their speeds.

An operation menu is displayed on the menu display section 29, and icons for monitoring execution 29a, monitoring end 29b, alarm confirmation 29c, and end 29d are displayed.
The search screen 25 will be described later.

FIG. 6 is a diagram specifically explaining the identification processing of this embodiment. FIGS. 3A to 3D are diagrams showing the processing of this example in a time-series manner. First, when the operator operates the icon of the monitoring execution 29a shown in FIG. 5, a monitoring screen 24 is displayed on the CRT display 21 'of the monitoring screen display device 21. Then, the operator can determine which TV camera is currently selected by looking at the display. That is, the television camera with the number indicated by the black square in the display of the camera arrangement position display section 26 is selected.

That is, image data photographed by the eighth television camera is input to an image input device 17a, selected by a video switching device 17b composed of a matrix switch, and converted into an image shown in FIG. Displayed at 18 or 19. In addition, the display of “Fuji TN going up 08” shown in FIG. 7A is information of the number of the television camera and the monitoring place added by the title generator of the video switching device 17b, as described above. This is performed in synchronization with the video switching timing of the video switching device 17b.

Next, the image data to which information such as the camera number is added is output from the control device 17c to the image processing device 20 as a video signal. The image processing device 20 reads camera number information from the supplied image data. FIG. 6B is a diagram showing a state where the data of “08” which is the camera number information is read.

The image processing device 20 further performs image recognition processing on the image data using a neural network. The conceptual diagram is shown in FIG. As described above, the image processing device 20 performs mosaic conversion on the extracted camera number information (for example, “08”), and then inputs the mosaic conversion to the neural network to determine the number. As aforementioned,
At this time, a learning result for recognizing the camera number information has already been obtained in the image processing device 20, and a recognition result equal to or higher than a certain threshold value is output according to this data. In this example, as shown in FIG. 6D, the threshold value is 0.5 or more, and an accurate result of “08” can be obtained as a recognition result.

The recognition result obtained as described above is output to the monitoring screen display device 21 and the image recording device 22 as camera number data. On the other hand, the video signal of, for example, the eighth television camera selected by the video switching device 17b is output to the monitoring screen display device 21, and the monitoring screen display device 21 determines the received video based on the video signal and the camera number data. It can be determined immediately whether the image is output from a television camera.

That is, from the information obtained by the above-described processing, the CPU in the monitoring screen display device 21 determines the camera arrangement position display section 2 from the obtained TV camera number data.
The numbers corresponding to 6 are indicated by black squares.

In the above example, the number added to the image taken by the eighth television camera is recognized. However, the same can be applied to other numbers. By performing the above-described processing, the image monitoring apparatus 17 only needs to add the number of the television camera when selecting the image data captured by the television cameras 1 to 16 by the video switching apparatus 17b. Since the number is recognized by the device 20 and output to the monitoring screen display device 21, the monitoring screen display device 21 can immediately identify the camera that captured the image data from the camera number data and the video signal.

Therefore, the interface and software between the image monitoring device 17 and the monitoring screen display device 21 which are required in the conventional image monitoring system are not required. When the monitoring screen display device 21 is configured by a personal computer, a general-purpose computer can be used.

On the other hand, the camera number data recognized by the image processing device 20 is also supplied to the image recording device 22, and the video signal is supplied via the video switching device 17b. When recording
It is possible to immediately recognize the TV camera number that captured the image data to be recorded. Therefore, for example, when recording image data, it is possible to store the number of the photographed television camera correspondingly.

As described above, when the image recording device 22 is constituted by a personal computer or the like, an interface between the image monitoring device 17 and the monitoring screen display device 22 or
No software is required. When the image recording device 22 is configured by a personal computer, a general-purpose computer can be used.

Next, the monitoring image search display will be described.
This display is a screen 25 displayed on the right side of the monitoring screen shown in FIG. The monitoring target image search display includes a search target selection display unit 30, a monitoring point selection display unit 31, a search result display unit 32, and a menu display unit 33. The search target selection display section 30 is a display section for searching for abnormalities that can be found from images captured by the television camera, and has menus for abnormal running, parking and stopping, falling objects, and traffic jams. Also, a search period is input as date information.

The monitoring point selection display section 31 selects a tunnel name and a television camera of the monitoring point to be searched. Further, the search result display unit 32 displays a search result when a search process is performed based on the above settings. For example, in the example shown in FIG.
/ 22/09: 12 "and" parking and stopping T01 first 01/02/21/12: 04 "are displayed. That is, the previous display indicates that “the abnormal running is the eighth TV camera in the up lane of tunnel No01,
It was taken at 9:12 on Feb. 22, 997, and the following display shows that "parking and stopping is the first TV camera in the up lane of tunnel No01, It was taken at 12:04. "

The above-described search processing is executed by operating the search execution icon 33a of the menu display section 33. The state displayed on the search result display section 32 is a display based on the search execution.

On the other hand, the image display icon 33b of the menu display section 33 is an icon for displaying the above-mentioned search result as image data. By operating this icon, an image is displayed on the search result display section 32. be able to. The video displayed on the search result display unit 32 at this time is, for example, image data recorded on the image recording device 22. At this time, when the video data is displayed on the search result display unit 32, the video and the number of the television camera that has captured the video are immediately known to the image recording device 22, and the video data can be easily displayed based on the search information. Can be searched.

As described above, according to the present embodiment, the video data and the TV camera that has captured the video can be easily known, and the video can be displayed very easily when displaying a monitoring screen or recording an image. Can be recorded. In addition, for that purpose, between the image monitoring device 17 and the monitoring screen display device 21,
In addition, an interface is provided between the image monitoring device 17 and the image recording device 22, and there is no need to use software.

In this embodiment, a television camera is used as a camera. However, it is not always necessary to use a television camera. For example, a digital still camera or a digital video camera may be used.

[0056]

As described above in detail, according to the present invention, images taken by cameras provided at a plurality of monitoring locations are selected at a fixed interval or at a predetermined interval, and identification display is performed on the selected images. By adding the image and then recognizing the display by a neural network, the camera that has captured the image can be easily identified.

Further, according to the present invention, the camera number data obtained by the image monitoring device having the above configuration is output to, for example, a monitoring screen display device or an image recording device. Monitoring screen display and image recording processing can be easily performed from the number data.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an image monitoring system in which a plurality of television cameras are installed to monitor and inspect a certain plant facility.

FIG. 2 is a diagram showing an arrangement position of 16 television cameras provided in a tunnel.

FIG. 3 illustrates an image captured by a television camera, and illustrates a captured image in which an identification display that indicates the arrangement of the television camera is superimposed on the image.

FIG. 4 is a diagram showing a configuration of a neural network having a three-layer structure.

FIG. 5 shows an example of a monitoring screen displayed on a CRT display of the monitoring screen display device.

FIG. 6 is a diagram specifically illustrating an identification process of the present example.

[Explanation of symbols]

 1 to 16 TV camera 17 Image monitoring device 17a Image input device 17b Video switching device 17c Control device 18, 19 TV monitor 20 Image processing device 21 Monitoring screen display device 21 ', 22' CRT display 22 Image recording device 24 Monitoring screen 25 Monitoring Target image selection screen 26 Camera arrangement position display part 27 Monitoring result display part 28 Running state display part 29 Menu display part 29a Monitoring execution 29b Monitoring end 29c Alarm confirmation 29d End 30 Search target selection display part 31 Monitoring point selection display part 32 Search Result display section 33 Menu display section

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazumi Kawakami 1-1, Tanabe Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Fuji Electric Co., Ltd.

Claims (8)

[Claims] 1. A camera provided at each of a plurality of monitoring locations, a photographed image switching means for selecting an image photographed by the camera, and identification of the camera with respect to the photographed image selected by the photographed image switching means. Identification display combining means for combining displays; and identification means for recognizing the identification display combined with the photographed image by the identification display combining means and identifying a camera that has photographed the selected photographed image. Camera identification device. 2. A camera provided at each of a plurality of monitoring locations, a photographed image switching means for selecting an image photographed by the camera, and identification of the camera with respect to the photographed image selected by the photographed image switching means. A camera identification unit having identification display combination means for combining the display, and identification means for recognizing the identification display combined with the captured image by the identification display combination means and identifying a camera that has captured the selected captured image; An output unit that outputs information related to the camera identified by the camera identification unit and the monitoring location photographed by the camera; a monitoring screen display device that displays a monitoring screen based on the relevant information output by the output unit; An image monitoring system comprising: 3. A camera provided at each of a plurality of monitoring locations, photographed image switching means for selecting an image photographed by the camera, and identification of the camera with respect to the photographed image selected by the photographed image switching means. A camera identification unit having identification display combining means for combining the display, and identification means for recognizing the identification display combined with the captured image by the identification display combining means and identifying a camera that captured the selected captured image; An output unit configured to output information related to the camera identified by the camera identification unit and the monitoring location captured by the camera; an image recording device configured to record and process the captured image in accordance with the associated information output by the output unit; An image monitoring system comprising: 4. The recognition of the identification display performed by the identification means,
The image monitoring system according to claim 1, wherein the image monitoring system uses a neural network. 5. The camera according to claim 1, wherein the identification of the camera is a camera number.
The image monitoring system as described. 6. The image monitoring system according to claim 1, wherein the camera is a television camera. 7. The digital still camera according to claim 1, wherein the camera is a digital still camera.
The camera identification device according to the above. 8. The camera identification device according to claim 1, wherein the camera is an ITV camera.