JP4265919B2 - Tracking cooperative monitoring system and imaging apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides an imaging system in which a plurality of imaging devices (hereinafter sometimes referred to as cameras) installed in a monitoring area are connected to each other via a network and connected to a monitoring center via a communication network. It is possible to detect intruders (hereinafter referred to as moving objects or intruders) that have entered the surveillance area based on video information captured by the device, and to automatically track the movement of intruders between multiple cameras. The present invention relates to a moving body automatic tracking type cooperative monitoring system and an imaging device constituting the system.
[0002]
[Prior art]
In a surveillance system in which a plurality of cameras each having an image processing function are installed, after detecting an intruder, it is proposed to track the intruder from one camera to the other (for example, a patent) Reference 1).
[0003]
In the conventional surveillance system, first, the “bait” enters the shooting range of one camera and starts tracking monitoring, and then a true intruder enters the shooting range of another camera. It was difficult to identify the camera, and there was a possibility that a blind spot where the camera did not photograph a true intruder occurred and the monitoring range was mistaken.
[0004]
Furthermore, when video information is transmitted to the monitoring center by operating multiple cameras at the same time, the capacity of the transmission path is limited. Therefore, when video information from multiple cameras is simultaneously sent to the transmission path, transmission is performed. There was a risk that the quality of the video information may be lost.
[0005]
[Patent Document 1]
JP 2002-290962 A
[0006]
[Problems to be solved by the invention]
An object of the present invention is to install a camera under any conditions in a monitoring system in which a plurality of imaging devices arranged in a monitoring area are connected to each other via a network and connected to a monitoring center via a communication network. If it is within the range, the entire range desired by the user can be monitored, and if there are multiple intruders at the same time, the video information imaged by the camera detecting the intruder is transmitted with high quality. It is to provide an automatic tracking type cooperative monitoring system that can be used.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention applies known moving object recognition technology to control the imaging information between the cameras, and transmits it to the monitoring center with a small amount of video information in the steady state. Only a camera at a certain location or a location where an intruder is moving can transmit high-quality imaging with a large amount of video information to the monitoring center. In addition, according to the moving body information for which the moving direction and moving speed of the moving body are calculated, control information is transmitted and received between adjacent cameras whose installation positions are registered in advance, and control of the camera position and shooting direction, and the imaging information described above. Control the amount.
[0008]
These controls are realized by transmitting and receiving control information between cameras, and a system can be constructed without incorporating functions on the monitoring center side. As a result, it is possible to construct a system without a monitoring center and a system capable of monitoring with a portable terminal such as a mobile phone or a PDA (Personal Digital Assistant).
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the configuration of an automatic tracking cooperative monitoring system according to the present invention will be described with reference to FIG. The automatic tracking cooperative monitoring system according to the present invention connects a plurality of cameras 1-1 to 1-n arranged in a monitoring area to each other via a communication network 3 such as a LAN, and the plurality of cameras are, for example, 24 Mbps. And connected to the monitoring center 5 via the communication line 7. Further, the communication network 3 can be connected to a file server 2 that stores video information from the cameras 1-1 to 1-n together with time. Each camera 1-1 to 1-n has an imaging range 20-1 to 20-n, respectively, and is arranged so that the entire monitoring area can be monitored without exception.
[0010]
The communication network 3 may be a LAN or a wired or wireless network. The monitoring center 5 generally has a camera video monitoring function, a video data backup function, and a camera control function. The communication line 7 may be a wired or wireless communication line, and the monitoring center may be connected to the LAN.
[0011]
In such an automatic tracking type cooperative monitoring system, during normal times, the cameras 1-1 to 1-n transmit video information d2-1 to d2-n to the monitoring center 5 via the communication line 7, respectively. Yes. The transmission of the video information at this time is, for example, a mode in which video information from n cameras is allocated so as to leave a margin in the transmission capacity of the 24-Mbps communication line 7, or is allocated to the communication line 7 for transmission. Good. The display of the monitoring screen in the monitoring center 5 in this case is indicated by G1 in FIG.
[0012]
In this state, it is assumed that the intruder 9 who has entered the imaging range 20-1 is moving in the direction of the arrow. At this time, the first camera 1-1 that has detected the intruder 9 transmits the moving body information d1-1 to the second camera 1-2 that has been predicted to be the movement destination, and the video information d2-1 is transferred to the information amount. Is transmitted to the monitoring center 5. Control of the video information amount in each of the cameras 1-1 to 1-n is controlled by a rate control unit of an image processing unit, which will be described later, and the video information amount transmitted from each of the cameras 1-1 to 1-n to the monitoring center 5. Increases the amount of video information of a camera that has detected an intruder or a camera that is predicted to intrude, and transmits the amount of information from other cameras without changing or decreasing the amount of information. For example, in the case of the first camera 1-1, since the intruder 9 is currently detected, the amount of information is large, and when the intruder moves out of the shooting range, the amount of information decreases. In the case of the second camera 1-2, no intruder is currently detected and the amount of information is small, but the intruder 9 will soon be captured by the moving body information d1-1 from the first camera 1-1. Since it turns out that it falls into 20-2, the amount of information increases. In the other cameras 1-3 to 1-n, no intruder is detected and the moving body information is irrelevant, so the amount of information remains small. Also, using the moving body information d1-1 of the first camera 1-1, a zoom function for enlarging the size of the image of the first camera or the second camera in accordance with the size of the intruder 9 is activated. It is also possible to photograph the intruder more accurately by controlling the turntable according to the position of the intruder.
[0013]
With the configuration as described above, a monitoring system that effectively uses a limited network transmission amount can be realized.
[0014]
With reference to FIG. 3, the hardware configuration of the camera 1 constituting the automatic tracking cooperative monitoring system according to the present invention will be described.
[0015]
The camera 1 includes a control unit H11, an imaging unit H12, a video processing unit H13, a memory unit H14, a general-purpose interface unit H15, a communication unit H16, and a power supply unit 17, and includes a turntable 29. It is mounted on. The communication unit H16 is connected to another camera 1-n via the communication network 3 and is connected to the monitoring center 5 via the communication line 7.
[0016]
The control unit H11 is a CPU, controls various devices for photographing and various processes, and monitors the state of the power supply and peripheral devices. The control unit H11 also controls the zoom function of the imaging unit H12.
[0017]
The imaging unit H12 includes a CCD element and the like and has a function of acquiring a video signal, and can have a zoom function.
[0018]
The video processing unit H13 has a function of compressing the video signal input from the imaging unit H12 and acquiring information related to movement in the screen. Although there is no particular limitation on the compression method, in the present embodiment, compression is performed by the MPEG (Moving Picture Expert Group) method. Note that the video processing unit H13 may be hardware configured with a circuit, or may be software that performs processing by executing a program stored in the control unit H11.
[0019]
The memory unit H14 is used for software work, a buffer for storing shooting information, and a buffer for storing communication information.
[0020]
The general-purpose interface unit H15 is an interface for connecting and controlling a device such as a turntable 29 for changing the photographing range of the camera.
[0021]
The communication unit H16 transmits and receives video information and various control information captured with other cameras connected to the communication network 3, and transmits information such as video to the monitoring center 5 via the communication line 7. Has the function of sending.
[0022]
The power supply unit 17 is a battery (a rechargeable battery, a dry battery, etc.) or a commercial AC power supply for driving the camera.
[0023]
First, a video information compression method will be described. Here, the operation described below will be described as being performed based on the control by the control unit H11.
[0024]
A functional configuration of the camera 1 having such a hardware configuration will be described with reference to FIG. The camera 1 includes an imaging device control function 11, an imaging function 12, a video processing function 13, a moving body information acquisition function 14, a video information transmission amount control function 15, a communication function 16, and a video information amount control function 17. The operation mode switching function 18 is provided.
[0025]
The imaging device control function 11 is a function for controlling the entire camera 1.
[0026]
The imaging function 12 is a function for converting video acquired via the lens into video information (image data).
[0027]
The video processing function 13 is a function for generating compressed image data and motion vectors by performing processing such as image compression on the video information from the imaging function 12.
[0028]
The moving object information acquisition function 14 is a function for generating moving object information by predicting the moving direction and moving range of a moving object using a motion vector acquired by video processing.
[0029]
The video information transmission amount control function 15 is a function for controlling the transmission amount of video information transmitted on the network in consideration of the number of cameras connected to the communication network 3 and the transmission amount of the communication line 7. Further, the video information transmission amount control function 15 detects video information when a moving object is detected within its own shooting range or when moving object information indicating that the moving object moves to its own shooting range is acquired from another camera. This is a function to increase the transmission amount and reduce the video information transmission amount when the moving object goes out of the shooting range.
[0030]
The communication function 16 has a function of packetizing the moving object information d1, the video information d2, and the abnormality information d3 and transmitting them to the network, receiving the packets from the network, and extracting the information. The moving object information d1 is transmitted to the camera to which the moving object moves, and the video information d2 is transmitted to the monitoring center. When the file server 2 is connected to the communication network 3, the video information d2 is also transmitted to the file server.
[0031]
The video information amount control function 17 is a function for controlling the information amount of video processing executed by the video processing function 13.
[0032]
The operation mode switching function 18 functions to switch the operation mode of the image capturing apparatus itself to either the normal operation mode or the low power consumption monitoring mode according to an instruction from the image capturing apparatus control function 11.
[0033]
The configuration of the video processing function 13 (video processing unit H13) when performing MPEG encoding will be described with reference to FIG. The video processing function 13 includes a DCT (Discrete Cosine Transform = discrete cosine transform) unit 131, a quantization unit 132, an inverse quantization unit 133, an inverse DCT unit 134, a video memory 135, a motion compensation prediction unit 136, The variable-length encoding unit 137, the buffer 128, and the rate control unit 139 are configured. Furthermore, the video processing function 13 has an input terminal T131 and an output terminal T132.
[0034]
The imaging information input from the input terminal T131 is subjected to discrete cosine transform by the DCT unit 131, quantized by the quantization unit 132, variable-length encoded by the variable-length encoding unit 137, and taken into the buffer 138. The rate is controlled by the rate control unit 139, the parameter is adjusted in the quantization unit 132, and the amount of video information is controlled. In general, the code amount per fixed time controlled by the rate control unit 139 is expressed in units of bit rate (bps). Depending on the shooting frame, in order to obtain difference data, after quantization in the quantization unit 132, it is inversely quantized in the inverse quantization unit 133, and further inverse DCTed in the inverse DCT unit 134, and stored in the video memory 135. It is done. The motion compensation prediction unit 136 extracts the difference from the frame following this as motion compensation prediction data. The extracted data is subjected to variable length coding by the variable length coding unit 137 as a motion vector and a prediction mode depending on the shooting frame.
[0035]
The compressed video information is appropriately output from the output terminal T132.
[0036]
With the above configuration, the video processing function 13 can be adjusted to increase / decrease the video information amount by rate control of the rate control unit 139, and uses a motion vector in motion compensation prediction of the motion compensation prediction unit 136. It is also possible to detect moving objects.
[0037]
For example, by detecting a value close to a relatively large motion vector value, it is possible to grasp the size, moving speed, and direction of the moving object. Further, the absolute position of the moving object can be grasped from the relative position of the motion vector in the video frame.
[0038]
Subsequently, in the above-described automatic tracking cooperative monitoring system, FIG. 6 which is a configuration diagram of the automatic tracking cooperative monitoring system showing an embodiment to which the present invention is applied will be described in more detail with the assumption of the situation of the intruder. Do it.
[0039]
As in FIG. 1, this monitoring system is configured by connecting a plurality of cameras 1-1 to 1-n to the communication network 3 and connecting to the monitoring center 5 via the communication line 7. Further, the file server 2 can be connected to the communication network 3.
[0040]
Here, it is assumed that the intruder 9 has entered the imaging range 20-1 of the first camera 1-1 from outside the monitoring range. The first camera 1-1 detects the intruder 9 and transmits moving object information d1-1 and abnormality information d3-3 to the second camera 1-2. The abnormality information d1-1 is also transmitted to the other cameras 1-3 to 1-n and the monitoring center 5. Only the monitoring center 5 refers to the video information d2-1 to d2-n.
[0041]
The processing flow of the first camera 1-1, that is, the camera that detects the intruder 9 (hereinafter referred to as the main camera) in the configuration of FIG. 6 will be described using the flowchart of FIG. The main camera operating in the low power consumption monitoring mode without detecting the intrusion of the moving object (intruder) executes the moving object recognition process for detecting the moving object (step S1), and determines whether there is an intruder. (Step S2). If it is determined that there is no intruder, when the normal monitoring mode is set, the mode transits to the low power consumption monitoring mode (step S3), and the processing after step S1 is repeated. Here, the low power consumption monitoring mode is a mode in which, for example, the power supplied to the turntable or the like is limited, or the LSI is driven at a low speed to reduce power consumption, and power is supplied to the minimum necessary modules for monitoring. . On the other hand, the normal monitoring mode is a mode in which the LSI is driven at a normal speed and all other functions related to monitoring are prepared in a state that can be immediately executed. Although there is a difference in transmission amount, the video information d2 is transmitted to the monitoring center 5 in any state.
[0042]
If it is determined in step S2 that there is an intruder (YES), after the transition to the normal monitoring mode (step S4), moving body information acquisition processing is performed (step S5), and detailed information about the intruder, for example, the intruder The moving body information d1 such as the position, the moving speed, and the moving direction is acquired. Next, a moving body information notification process (step S6) for notifying the acquired moving body information d1 to another camera is executed. Thereafter, a video information amount control process (step S7) is executed to shift to a mode in which the bit rate of the main camera is increased and a high quality video can be obtained. Then, abnormality notification processing is executed and abnormality information d3 is transmitted to the entire system (step S8).
[0043]
Using the flowchart of FIG. 8, processing other than the camera 1-2-1-n other than the first camera 1-1 in the configuration of FIG. 6, that is, a camera other than the camera that detected the intruder (hereinafter referred to as a secondary camera). The flow will be described. When the sub cameras 1-2 to 1-n operating in the low power consumption monitoring mode without detecting an intruder receive the abnormality information d3 from the main camera through the abnormality notification (step S11), the normal monitoring mode is set. (Step S12) and intruder detection is executed.
[0044]
The processing flow of the monitoring center 5 in the configuration of FIG. 6 will be described using the flowchart of FIG. 9 and the screen configuration diagram of FIG. The monitoring center 5 that receives the video information in the low power consumption monitoring mode from each camera and displays the video from all the cameras on the monitoring monitor (screen G1 in FIG. 2), displays the abnormality information d3 from the main camera. Upon receipt (step S21), the monitor G2 shown in FIG. In A warning message is displayed (step S22), and the display is switched to the main camera image priority display that preferentially displays the image of the main camera shown on the screen G3 in FIG. 2 (step S23).
[0045]
The normal monitoring monitor screen G1 is displayed by dividing the screen and reducing the images of a plurality of cameras. When the abnormality information d3 is acquired, a warning message indicating that an intruder has been detected is displayed (G2), and then the screen is switched to a screen that preferentially displays the main camera video (G3).
[0046]
10-12, the intruder 9 is already in the shooting range 20-1 of the first camera 1-1 and tries to move to the shooting range 20-2 of the second camera 1-2. The operation of the monitoring system in a situation is described.
[0047]
The first camera 1-1 detects the intruder 9 and transmits moving object information d1-1 to the second camera 2-2. Control information d4-1 is transmitted to other cameras including the second camera 1-2 and the monitoring center 5. Only the monitoring center refers to the video information d2-1. Camera information d5 is sent and received between the primary camera and the secondary camera group before sending control information. Belief Setting information.
[0048]
The processing flow of the first camera in the configuration of FIG. 10, that is, the main camera that detects the intruder, will be described with reference to the flowchart of FIG. The main camera 1-1 that detects the intruder 9 within the imaging range 20-1 and operates in the normal monitoring mode executes video processing to obtain information such as the position and moving speed of the intruder from the motion vector and other information. A moving body moving amount determination process for obtaining the moving body information by examining the correlation with the camera position is executed (step S31). It is determined whether or not the moving destination camera needs to be notified using the moving body information obtained by this processing (step S32). If it is determined that notification to the sub camera at the movement destination is unnecessary (NO), such as when the movement destination of the intruder is still within the shooting range of the main camera, the processing returns to the normal main camera processing. If it is determined in step S32 that the destination camera needs to be notified (YES), a destination camera prediction process for selecting a sub camera to be notified is executed (step S33). The main camera executes other camera information acquisition processing for transmitting control information d4, which is a camera information notification request, to the sub cameras 1-2 to 1-n and acquiring camera setting information (camera information d5) of the sub cameras. (Step S34). Based on the setting information (camera information d5) of the sub camera, the video information amount distribution calculation process for determining the video information amount distribution of each camera, that is, the bit rate value of each camera is executed (step S35). Next, a video information amount change notification process for notifying each camera of a bit rate value to be changed (control information d4) is executed (step S36). Thereafter, a semi-primary camera mode transition notification process is executed to transmit control information d4 that prompts the next camera to be ready to become the main camera to the intruder's destination camera (second camera 1-2 in the example of FIG. 10). (Step S37).
[0049]
Thereby, the amount of video information from each camera to the monitoring center can be controlled within the allowable range of the information transmission path (communication line 7), and a stable video can be received by the monitoring center 5.
[0050]
A processing flow of a camera other than the first camera 1-1 in the configuration of FIG. 10, that is, a sub camera other than the main camera that detects an intruder will be described with reference to the flowchart of FIG. When control information d4 is received from the main camera (control notification reception) (step S41), it is determined what the control type is and branches to each process (step S42).
[0051]
If the received control information d4 is control information for a camera information notification request, a camera information transmission process for transmitting the camera setting information (camera information d5) to the main camera is executed (step S43). If the received control information d4 is video information amount change control information, a video information amount change process for changing the bit rate of the camera is executed (step S44). If the received control information d4 is camera mode change control information, a camera mode change process for preparing to move the operation mode from the sub camera to the main camera is executed (step S45).
[0052]
With reference to FIG. 13, an example of distribution of the set bit rate of each camera according to the situation of the intruder performed by the main camera in step S35 in the configuration of the monitoring system showing the embodiment to which the present invention is applied will be described. In this example, automatic tracking Cooperation The surveillance system is composed of four surveillance cameras, and assumes a surveillance system assuming that the allowable bit rate of the transmission path is 24 Mbps and the maximum bit rate of the camera is 10 Mbps. When there is no intruder, all the cameras are operating in the low power consumption monitoring mode, and the video signal is transmitted to the monitoring center with the setting of 2 Mbps. In this example, in the normal monitoring mode in which an intruder has entered the shooting range, the total bit rate value of the camera in the low power consumption monitoring mode is 8 Mbps and the difference of 16 Mbps between the upper limit of the transmission path is 24 Mbps, the main camera is 2, and the quasi-main camera Is assigned with a priority of 1 and the others are 0. The fraction generated at the time of distribution is assigned to the quasi-main camera, if any.
[0053]
FIG. 13 (1) shows a case where an intruder enters the shooting range of the first camera from a state where there is no intruder. Since cameras other than the first camera do not detect intruders, only the first camera has the maximum bit rate setting, and the others remain at 2 Mbps. The total bit rate value of all the cameras is 16 Mbps, which is within the upper limit of 24 Mbps of the transmission path.
[0054]
FIG. 13B shows a case where an intruder is about to move from the shooting range of the first camera to the shooting range of the second camera. Since cameras other than the first camera have not detected an intruder, the first camera has a maximum bit rate setting, and the setting of the second camera that is predicted to be the destination is also 10 Mbps. Others remain at 2 Mbps. The total bit rate value of all cameras is 24 Mbps, which is within the upper limit of 24 Mbps of the transmission path.
[0055]
FIG. 13 (3) shows a case where the intruder is about to move from the shooting range of the second camera to the shooting range of the third camera, and another intruder enters the shooting range of the fourth camera. Shows the case. Since the first camera does not detect an intruder, the first camera has a low power consumption monitoring mode bit rate setting of 2 Mbps, and the second camera and the fourth camera that are currently detecting the intruder are mainly used. Increase the bit rate preferentially as a camera. The bit rate of the second camera and the fourth camera is 8 Mbps, and the third camera is 6 Mbps in consideration of the setting of the third camera that is predicted as the destination. The total bit rate value of all cameras is 24 Mbps, which is within the upper limit of 24 Mbps of the transmission path.
[0056]
FIG. 13 (4) shows a case where an intruder is about to move from the imaging range of the first camera to the imaging range of the second camera, and another intruder is fourth from the imaging range of the third camera. This shows a case where the camera is about to move to the shooting range of this camera and another intruder is moving within the shooting range of the fourth camera. In this case, the bit rate setting of all cameras is 6 Mbps. The total bit rate value of all cameras is 24 Mbps, which is within the upper limit of 24 Mbps of the transmission path.
[0057]
【The invention's effect】
According to the present invention, in an automatic tracking cooperative monitoring system, an intruder can be effectively monitored with a high-quality image with a limited transmission path capacity.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the configuration of an automatic tracking cooperative monitoring system according to an embodiment of the present invention.
FIG. 2 is a display example of a monitor screen of a monitoring center when an intruder is detected in the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
FIG. 3 is a configuration diagram of hardware of a camera according to an embodiment of the present invention.
FIG. 4 is a functional configuration diagram of a camera according to an embodiment of the present invention.
FIG. 5 is a diagram showing an example of a video processing function of the camera according to the embodiment of the present invention.
FIG. 6 is a block diagram showing a configuration of an automatic tracking cooperative monitoring system according to an embodiment of the present invention, and is an explanatory diagram when an intruder moves from outside the monitoring range into the monitoring range.
FIG. 7 is a diagram showing a processing flow when an intruder is detected in the main camera of the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
FIG. 8 is a diagram showing a processing flow when an intruder is detected in the secondary camera of the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
FIG. 9 is a diagram showing a processing flow when an intruder is detected in the monitoring center of the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
FIG. 10 is a block diagram showing an automatic tracking cooperative monitoring system according to an embodiment of the present invention, and is an explanatory diagram when an intruder is moving in a monitoring range.
FIG. 11 is a diagram showing a processing flow when an intruder moves in the main camera of the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
FIG. 12 is a diagram showing a processing flow when an intruder moves in the secondary camera of the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
FIG. 13 is a diagram showing the amount of video information of each camera in various intruder detection situations of the automatic tracking cooperative monitoring system according to the embodiment of the present invention.
[Explanation of symbols]
1 Camera
2 Phil server
3 Communication network (LAN)
5 Monitoring center
7 Communication line
9 Intruder
11 Imaging device control function
12 Imaging function
13 Video processing functions
14 Mobile body information acquisition function
15 Video information transmission volume control function
16 Communication function
17 Video information control function
18 Operation mode switching function
20 Shooting range
29 Turntable
d1 Motion information
d2 video information
d3 Abnormal information
d4 control information
d5 Camera information

Claims (7)

Tracking type cooperation in which multiple imaging devices installed in a monitoring area are connected via a network and connected to a monitoring center via a communication line, and moving objects are sequentially tracked and captured by multiple imaging devices. In the monitoring system,
Each of the imaging devices is
The amount of video information to be output is configured to be variable,
Imaging means for acquiring the video information;
Communication means for communicating between a plurality of imaging devices connected to the network or between the monitoring centers;
A moving body information acquisition function for recognizing a moving body from the video information and acquiring moving body information about the moving body;
An imaging device control function for controlling the operation of the imaging device using the moving object information;
A video information transmission amount control function for controlling a video information transmission amount of the imaging device according to the moving body information from the imaging device constituting the monitoring system and setting information of a plurality of imaging devices;
A tracking-type cooperative monitoring system comprising: a video information amount control function for controlling a video information amount output by itself based on control from the video information amount control function. In the tracking type cooperative monitoring system according to claim 1,
The tracking type cooperative monitoring system , wherein the imaging device controls the orientation and position of the imaging device based on control from the imaging device control function. In the tracking type cooperative monitoring system according to claim 1,
The tracking type cooperative monitoring system , wherein the imaging device controls enlargement / reduction of a shooting range of the imaging device based on control from the imaging device control function. In the tracking type cooperative monitoring system according to claim 1,
The tracking type cooperative monitoring system , wherein the imaging device controls operation modes of the imaging device such as a low power consumption monitoring mode and a normal monitoring mode based on control from the imaging device control function. In the tracking type cooperative monitoring system according to claim 1 ,
The tracking type cooperative monitoring system , wherein the imaging device has a function of notifying a monitoring center that a moving object has been recognized based on control from the imaging device control function . In the tracking type cooperative monitoring system according to claim 1 ,
The tracking type cooperative monitoring system , wherein the monitoring center has a function of preferentially displaying an image of an imaging device recognized as a moving object based on abnormality information from an imaging device control function of the imaging device . Tracking type cooperation in which multiple imaging devices installed in a monitoring area are connected via a network and connected to a monitoring center via a communication line, and moving objects are sequentially tracked and captured by multiple imaging devices. In the imaging device constituting the monitoring system,
The amount of video information to be output is configured to be variable,
Imaging means for acquiring the video information;
Moving object detection means for detecting a moving object from the video information;
Moving object information acquisition means for acquiring information such as the moving destination of the moving object from data representing the movement of the moving object;
Setting information acquisition means for acquiring setting information of a camera connected to the network;
Communication means for communicating with other imaging devices and a monitoring center via a network;
Video information transmission amount control means for controlling a transmission amount of video information of the imaging device according to the moving body information acquired from the imaging device and setting information of the plurality of imaging devices ;
An image pickup apparatus comprising: a video information control unit that controls a video information amount based on control from the video information transmission amount control unit .

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