TWI510098B - Image capturing device and method for dynamic tracing a specified object using image capturing devices - Google Patents

Description

Camera device and method for dynamically tracking a specific object using the same

The present invention relates to an image pickup apparatus and a method of dynamically tracking a specific object using the same.

The traditional camera device requires the monitor to pay attention to the screen of the monitoring area at any time. When an unknown object appears in the screen, the supervisors take corresponding defense measures to notify the security personnel in the monitoring area to proceed. However, if the monitor ignores the abnormal objects in the picture, it will bring hidden dangers to the safety monitoring work. Moreover, conventional camera devices cannot dynamically track detected specific objects.

In view of the above, it is necessary to provide an imaging apparatus and a method for dynamically tracking a specific object by using the imaging apparatus, which can dynamically track the detected specific object according to a preset movement path table, and automatically adjust the detection of the imaging apparatus. Sensitivity.

An image capturing device for dynamically tracking a specific object, the camera device establishing a point-to-point connection with other camera devices in the monitoring area through a network, the image capturing device comprising: an image acquiring unit, configured to acquire an image of the monitoring area; The object detecting unit is configured to identify a specific object from the acquired image by using an object detecting technology; and the dynamic tracking unit is configured to store the image capturing device after the object detecting unit recognizes the specific object from the acquired image. Reading a preset movement path table, querying the movement path table, acquiring an imaging device capable of identifying the specific object in the monitoring area; and the dynamic tracking unit is further configured to adjust a next imaging device Detection sensitivity.

A method for dynamically tracking a specific object by using a camera device, the camera device establishing a point-to-point connection with other camera devices in the monitoring area through a network, the method comprising the steps of: acquiring an image of a monitoring area through the camera device; and utilizing object detection technology Identifying a specific object from the acquired picture; after identifying the specific object from the acquired picture, reading a preset movement path table from the storage device of the camera device, querying the movement path table, and acquiring the monitoring area The next camera capable of recognizing the specific object; and adjusting the detection sensitivity of the next camera.

Compared with the prior art, the camera device and the method for dynamically tracking a specific object use the preset movement path table to dynamically track the detected specific object and automatically adjust the detection sensitivity of the camera device. Improve the efficiency and accuracy of safety monitoring.

12‧‧‧Monitoring system

A-K‧‧‧ camera

14‧‧‧Network

16‧‧‧Customer computer

18‧‧‧Electronic map

41‧‧ ‧ coffers

20‧‧‧Specific objects

121‧‧‧Data setting unit

122‧‧‧Image acquisition unit

123‧‧‧Object detection unit

124‧‧‧Dynamic tracking unit

125‧‧‧Storage device

126‧‧‧ processor

1 is a network architecture diagram of a preferred embodiment of a monitoring system of the present invention.

Fig. 2 is a block diagram showing the configuration of a preferred embodiment of the image pickup apparatus of the present invention.

Figure 3 is a schematic diagram of an electronic map of a monitoring area.

4 is a schematic diagram of a movement path table set according to the electronic map in FIG.

5 to 7 are schematic diagrams of dynamic tracking according to the movement path table in Fig. 4.

8 is a flow chart of a preferred embodiment of a method for dynamically tracking a particular object using an imaging device of the present invention.

FIG. 9 is a specific flowchart of step S1 in FIG. 8.

Referring to FIG. 1, a network architecture diagram of a preferred embodiment of the monitoring system of the present invention is shown. In the present embodiment, the monitoring system 12 includes a plurality of camera devices A-K (ie, A-E, F-K), a network 14 and a client computer 16. The plurality of camera devices are located in a monitoring area, and are connected in a point-to-point manner through the network 14 to electronically monitor the monitoring area. The client computer 16 can log in to the setting page of one of the camera devices (such as the camera device A) through the network 14 to set various materials. After all the data are set in the camera device A, the camera device A transmits the set data to other camera devices in a point-to-point manner to realize data synchronization of all the camera devices. The network 14 can be an intranet or an internet or other type of communication network.

Referring to Fig. 2, there is shown a block diagram of a preferred embodiment of the image pickup apparatus of the present invention. In the present embodiment, the imaging device (such as the imaging device A) includes a data setting unit 121, an image acquisition unit 122, an object detecting unit 123, a dynamic tracking unit 124, a storage device 125, and a processor 126. The camera device includes, but is not limited to, a patrol camera that can be driven by a software or a hardware circuit, a fast ball camera ( SpeedDome) and PTZ (Pan/Tilt/Zoom) cameras that can be panned, tilted, zoomed, etc. The processor 126 is configured to control the execution of the units 121 to 124 to complete dynamic tracking of a specific object.

The data setting unit 121 is configured to set a movement path table and monitoring parameters. The specific steps are as follows.

(1) The client computer 16 logs into the setting page of an imaging device (such as the camera device A) in the monitoring area via the network 14.

(2) Uploading an electronic map of the monitoring area through the setting page, and storing the electronic map in the storage device 125. Referring to FIG. 3, it is a schematic diagram of the electronic map 18 of the monitoring area, wherein the blocks 1 to 4 are non-passable areas, and the warehouse 41 is a monitoring object.

(3) The installation location and IP address of all the camera devices are marked on the electronic map 18, and the installation location and IP address of each camera device are stored in the storage device 125. Continuing to refer to FIG. 3, the imaging devices indicated on the electronic map 18 are: A, B, C, D, E, F, G, H, I, J, K (ie, multiple cameras in FIG. 1).

(4) The movement path table is set in accordance with the positional relationship of each of the image pickup devices indicated on the electronic map 18, and the movement path table is stored in the storage device 125. In the present embodiment, the movement path table includes two columns, one of which records all the imaging devices on the electronic map 18, and the other column records the imaging devices adjacent to each of the imaging devices. Referring to FIG. 4, it is a movement path table set according to the electronic map 18 in FIG. The first column (Camera ID) records all the camera devices on the electronic map 18: A, B, C, D, E, F, G, H, I, J, K; the second column (Next Camera ID) records An imaging device adjacent to each imaging device. For example, with a camera A adjacent image pickup devices are image pickup devices B and D, and image pickup devices adjacent to the image pickup device B are image pickup devices A, F, and C.

(5) The monitoring parameter is set in the setting page of the registered imaging device (ie, the imaging device A), and the monitoring parameter is stored in the storage device 125 of the imaging device A. In this embodiment, the monitoring parameters include: the type of object detection technology, the data synchronization interval time, and the information of the manager. The types of object detection technologies include, but are not limited to, face detection technology, license plate detection technology, and pedestrian detection technology. The management personnel's information includes: the telephone number and mail address of the manager.

(6) According to the IP address of the other camera device on the electronic map 18, the registered camera device (ie, the camera device A) transmits the set data to other camera devices in the monitoring area through the network 14 in a point-to-point manner. Complete the synchronization of the data. The above settings include: electronic map, installation location and IP address of each camera, moving path table and monitoring parameters.

In addition, the camera device A performs a data synchronization operation through the network 14 every time the data synchronization interval is set. If an image capturing device that cannot synchronize data is found on the electronic map 18, the management can be notified by SMS or email. personnel. Further, the user may add a camera device to the movement path table as needed, delete or modify the existing camera device, modify the adjacent relationship of each camera device, and then transmit the modified movement path table to the electronic device. Other camera devices on map 18 to achieve data synchronization.

The image obtaining unit 122 is configured to acquire an image of a monitoring area. In the embodiment, the image acquisition unit 122 is a charge coupled device (CCD).

The object detecting unit 123 is configured to identify a specific object 20 from the acquired image by using an object detection technology. In the present embodiment, the specific object 20 includes a face, a license plate, a pedestrian, and the like. For example, if the type of the object detection technology is a face detection technology, the object detection unit 123 may use a skin color theory (such as a YCbCr color space model) to identify a face from the acquired image, or The face is identified from the acquired picture using Face Template Matching or other facial recognition techniques.

The dynamic tracking unit 124 is configured to: after the object detecting unit 123 identifies the specific object 20 from the acquired image, read a preset moving path table from the storage device 125, query the moving path table, and obtain the next possible An imaging device that identifies the particular object 20 is identified. In the present embodiment, the next imaging device that may recognize the specific object 20 is any one of all the imaging devices adjacent to the current imaging device. Referring to FIG. 5, assuming that the position of the specific object 20 is at the imaging device A, it is known that the moving path table in FIG. 4 is that the imaging devices adjacent to the imaging device A are the imaging devices B and D, so the next possible identification is The imaging device to the specific object 20 is B or D.

The dynamic tracking unit 124 is further configured to adjust the detection sensitivity of the next camera. In the present embodiment, the detection sensitivity refers to the identified minimum area of the specific object 20, and the adjustment sensitivity of the next imaging device refers to the minimum area of the specific object 20 to be recognized. lower. For example, assume that the original detection sensitivity is set to 5×5: if the identified specific object 20 area is less than 5×5, the object detection unit 123 ignores the specific object 20 and determines that the specific object 20 is not recognized; if it is recognized The specific object 20 area is greater than or equal to 5×5, and the object detecting unit 123 no longer ignores the specific object 20, and determines that the specific object 20 is recognized. Assumption The overall detection sensitivity is set to 2×2: if the identified specific object 20 is smaller than 2×2, the object detection unit 123 ignores the specific object 20, and determines that the specific object 20 is not recognized; if the specific object is recognized When the area of 20 is greater than or equal to 2×2, the object detecting unit 123 no longer ignores the specific object 20, and determines that the specific object 20 is recognized.

In other embodiments, the dynamic tracking unit 124 is further configured to record a moving path of the specific object 20 and store the moving path of the specific object 20 in the storage device 125. Further, the dynamic tracking unit 124 can also send a short message or email to a preset administrator for processing. Further, the dynamic tracking unit 124 can also adjust the lens direction of the next camera to be aligned with the identified specific object 20.

Referring to FIG. 6, it is assumed that the position of the specific object 20 is moved from the imaging device A to the imaging device B. As can be seen from the movement path table in FIG. 4, the imaging devices adjacent to the imaging device B are the imaging devices A, F and C, so the next camera device that may recognize the particular object 20 is A, F or C. The dynamic tracking unit 124 will adjust the detection sensitivity of the imaging device to A, F, and C. In FIGS. 5 to 7, the solid arrows represent the movement path of the specific object 20, and the dotted arrows represent the path that the specific object 20 may move next time.

Referring to FIG. 7 , it is assumed that the position of the specific object 20 continues to move from the imaging device B to the imaging device F. Referring to the movement path table in FIG. 4 , the imaging device adjacent to the imaging device F is the imaging device B, G. And H, so the next camera device that may recognize the particular object 20 is B, G or H. The dynamic tracking unit 124 will adjust the detection sensitivity of the imaging device to B, G, and H. Since the camera device H is in the vicinity of the monitoring object storeroom 41, the dynamic tracking unit 124 can also issue an alarm to alert the manager.

Referring to FIG. 8, a flow chart of a preferred embodiment of the method for dynamically tracking a particular object 20 by an imaging device is provided.

In step S1, the data setting unit sets the movement path table and the monitoring parameters. See the description of Figure 9 for the specific process.

In step S2, the image acquisition unit 122 acquires an image of the monitoring area.

In step S3, the object detecting unit 123 uses the object detecting technology to identify the specific object 20 from the acquired image. In the present embodiment, the specific object 20 includes a face, a license plate, a pedestrian, and the like.

In step S4, the object detecting unit 123 determines whether the specific object 20 is recognized from the acquired picture. If the specific object 20 is recognized from the acquired picture, step S5 is performed; if the specific object 20 is not recognized from the acquired picture, the process returns to step S2.

In step S5, the dynamic tracking unit 124 reads the preset movement path table from the storage device 125, queries the movement path table, and acquires the next imaging device that may recognize the specific object 20. In the present embodiment, the next imaging device that may recognize the specific object 20 is any one of all the imaging devices adjacent to the current imaging device.

In step S6, the dynamic tracking unit 124 adjusts the detection sensitivity of the next camera.

In other embodiments, the dynamic tracking unit 124 is further configured to record a moving path of the specific object 20 and store the moving path of the specific object 20 in the storage device 125. Further, the dynamic tracking unit 124 can also send a short message or email to a preset administrator for processing. Further, the dynamic tracking unit 124 can also adjust the lens direction of the next camera to be aligned with the identified specific object 20.

Referring to FIG. 9, it is a specific flowchart of step S1 in FIG.

In step S10, the client computer 16 logs into the setting page of an imaging device (such as the camera device A) in the monitoring area via the network 14.

In step S11, the electronic map 18 of the monitoring area is uploaded through the setting page, and the electronic map 18 is stored in the storage device 125 of the imaging device A.

In step S12, the installation location and IP address of all the camera devices are marked on the electronic map 18, and the installation location and IP address of each camera device are stored in the storage device 125.

In step S13, a moving path table is set according to the positional relationship of each camera device indicated on the electronic map 18, and the moving path table is stored in the storage device 125. In the present embodiment, the movement path table includes two columns, one of which records all the imaging devices on the electronic map 18, and the other column records the imaging devices adjacent to each of the imaging devices (see FIG. 4). At the same time, the user can add a camera device to the movement path table as needed, delete or modify the existing camera device, modify the adjacent relationship of each camera device, and then transfer the modified movement path table to the electronic map. Other camera devices on the 18 to achieve data synchronization.

In step S14, the monitoring parameters are set in the setting page of the registered imaging device (ie, the imaging device A), and the monitoring parameters are stored in the storage device 125. In this embodiment, the monitoring parameters include: the type of object detection technology, the data synchronization interval time, and the information of the manager. The types of object detection technologies include, but are not limited to, face detection technology, license plate detection technology, and pedestrian detection technology. The management personnel's information includes: the telephone number and mail address of the manager.

Step S15, according to the IP address of other camera devices on the electronic map 18, the login The camera device transmits the above-mentioned set data to other camera devices in the monitoring area through the network 14 in a point-to-point manner to complete data synchronization. The above settings include: electronic map, installation location and IP address of each camera, moving path table and monitoring parameters. In addition, the camera device A performs a data synchronization operation through the network 14 every time the data synchronization interval is set. If an image capturing device that cannot synchronize data is found on the electronic map 18, the management can be notified by SMS or email. personnel.

It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and the present invention is not limited thereto. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that Modifications or equivalents are made without departing from the spirit and scope of the invention.

A‧‧‧ camera

121‧‧‧Data setting unit

122‧‧‧Image acquisition unit

123‧‧‧Object detection unit

124‧‧‧Dynamic tracking unit

125‧‧‧Storage device

126‧‧‧ processor

Claims (6)

A camera device for dynamically tracking a specific object, wherein the camera device establishes a point-to-point connection with other camera devices in the monitoring area through a network, and the camera device includes: a data setting unit, configured to pass through the network on the client computer When logging in to the setting page of the camera device, uploading an electronic map of the monitoring area through the setting page, and storing the electronic map in a storage device of the camera device; and marking installation of all the camera devices on the electronic map Position and IP address, and storing the installation location and IP address of each camera device in the storage device; setting a movement path table according to the positional relationship of each camera device indicated on the electronic map, and The movement path table is stored in the storage device; the monitoring parameter is set in the setting page of the camera device, and the monitoring parameter is stored in the storage device, wherein the monitoring parameter includes a type of object detection technology, Data synchronization interval and management personnel's data; according to the IP of other camera devices on the electronic map The address is transmitted to the other camera devices in the monitoring area through the network in a point-to-point manner, and the synchronized image acquiring unit of the data is obtained for acquiring the image of the monitoring area; the object detecting unit is used for Using the object detection technology to identify a specific object from the acquired image; the dynamic tracking unit is configured to read the preset from the storage device of the camera device after the object detecting unit recognizes the specific object from the acquired image a moving path table, querying the moving path table, acquiring a next camera device in the monitoring area that can identify the specific object; and The dynamic tracking unit is further configured to adjust the detection sensitivity of the next camera. The camera device of claim 1, wherein the detection sensitivity refers to a minimum area of the identified specific object, and the dynamic tracking unit adjusts the detection sensitivity of the next imaging device to identify The minimum area of the specific object is reduced. The image pickup apparatus according to claim 3, wherein the next image pickup device capable of recognizing the specific object is any one of all the image pickup devices adjacent to the image pickup device in the movement path table . A method for dynamically tracking a specific object by using a camera device, the camera device establishing a point-to-point connection with other camera devices in the monitoring area through a network, the method comprising the following steps: when the user terminal computer logs in to the setting page of the camera device through the network Uploading an electronic map of the monitoring area through the setting page, and storing the electronic map in a storage device of the camera device; marking the installation location and IP address of all the camera devices on the electronic map, and The installation location and the IP address of the camera device are stored in the storage device; according to the positional relationship of each camera device indicated on the electronic map, a movement path table is set, and the movement path table is stored in the storage device Setting a monitoring parameter in the setting page of the camera device, and storing the monitoring parameter in the storage device, wherein the monitoring parameter includes an object detection technology type, a data synchronization interval time, and a management personnel data. According to the IP address of other camera devices on the electronic map, peer-to-peer through the network Transmitting the set data to other camera devices in the monitoring area to complete synchronization of the data; acquiring an image of the monitoring area through the camera device; and using the object detection technology to identify a specific object from the acquired image; After identifying a specific object from the acquired picture, reading from the storage device of the camera Taking a preset movement path table, querying the movement path table, acquiring an imaging device capable of identifying the specific object in the monitoring area; and adjusting the detection sensitivity of the next imaging device. The method for dynamically tracking a specific object according to claim 4, wherein the next camera capable of recognizing the specific object is: in all the camera devices in the moving path table adjacent to the camera device Any camera device. A method for dynamically tracking a specific object as described in claim 4, wherein the method further comprises the step of: adjusting a lens direction of the next camera to be aligned with the identified specific object.