JP2018164220A - Photographing control apparatus and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to reduce the number of workers required for installing an imaging apparatus used for monitoring.SOLUTION: A server 3 includes: a captured image acquisition unit 331 that acquires an entire area captured image of a region that can be captured by an image capturing apparatus 1; an instruction receiving unit 332 that receives an instruction of a monitoring target position in the entire area captured image acquired by the captured image acquisition unit 331; a storage unit 32 for storing a position of the pixel included in the entire area captured image and control information in which a horizontal position and a vertical position of the image capturing apparatus 1 are associated with each other; and a photographing control unit 333 for controlling the imaging area of the image capturing apparatus 1 by specifying a position in the horizontal direction and a position in the vertical direction of the image capturing apparatus 1 corresponding to the monitoring target position on the basis of the control information stored in the storage unit 32, in order to capture the monitoring target position indicated by the instruction accepted by the instruction receiving unit 332.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shooting control device and a program for controlling a shooting region of an imaging device.

  When installing a surveillance camera, it is necessary to adjust the imaging area of the surveillance camera so that a captured image including an object to be monitored is output (see, for example, Patent Document 1).

JP-A-2006-123004

  Conventionally, in order to adjust the imaging area of a surveillance camera, two people are working: a person instructing the direction of moving the surveillance camera while visually recognizing an image captured by the surveillance camera, and a person who moves the position of the surveillance camera. I had to. Under such circumstances, in order to reduce the cost required for the installation work, a technique for reducing the number of workers required for the installation work of the surveillance camera is required.

  Accordingly, the present invention has been made in view of these points, and an object thereof is to provide an imaging control device and a program for reducing the number of installation operations of an imaging device used for monitoring.

  The imaging control device according to the first aspect of the present invention includes a captured image acquisition unit that acquires an entire region captured image of an area that can be captured by the imaging device, and a monitoring target in the entire region captured image acquired by the captured image acquisition unit. An instruction receiving unit that receives an instruction of a position, a storage unit that stores control information in which a position of a pixel included in the entire region captured image, a horizontal position and a vertical position of the imaging device are associated, and In order to photograph the monitoring target position indicated by the instruction received by the instruction receiving unit, the horizontal position and the vertical position of the imaging device corresponding to the monitoring target position based on the control information stored in the storage unit And a shooting control unit that controls the shooting area of the imaging device.

  The instruction receiving unit may receive instructions for a plurality of the monitoring target positions, and the imaging control unit may control the imaging region so that the plurality of monitoring target positions are included in the imaging region.

  When the first monitoring target position is selected, the shooting control unit can select a second monitoring target position different from the first monitoring target position based on the shooting area where the imaging apparatus can shoot. Information indicating a specific area may be displayed on a terminal that inputs an instruction of the monitoring target position.

  The shooting control unit displays information indicating a shooting area of the maximum size that can be shot by the imaging apparatus on a terminal that inputs an instruction of the monitoring target position, and the instruction receiving unit is configured to display the maximum size. In response to a movement instruction or a reduction instruction for the imaging area, the imaging control unit may control the imaging area based on the movement instruction or the reduction instruction.

  The instruction receiving unit receives instructions of a plurality of monitoring target positions, and the imaging control unit switches and shoots the plurality of imaging regions associated with the plurality of monitoring target positions received by the instruction receiving unit. In this way, the imaging device may be controlled.

  According to a second aspect of the present invention, there is provided a program, a captured image acquisition unit that acquires an entire area captured image of an area that can be captured by an imaging apparatus, and a monitoring target in the entire area captured image acquired by the captured image acquisition unit. An instruction receiving unit that receives a position instruction, and a position of a pixel included in the all-region captured image and a horizontal position of the imaging device in order to capture the monitoring target position indicated by the instruction received by the instruction receiving unit And controlling the imaging region of the imaging device by specifying the horizontal position and the vertical position of the imaging device corresponding to the monitoring target position based on the control information that associates the vertical position with the control information. It functions as an imaging control unit.

  According to the present invention, there is an effect that the number of workers required for the installation work of the imaging device used for monitoring can be reduced.

It is a figure which shows the structure of a work assistance system. It is a figure for demonstrating the outline | summary of the flow of a process in a work assistance system. It is a figure which shows the structure of an imaging device. It is a figure which shows the structure of a server. It is a figure for demonstrating the method by which a captured image acquisition part acquires a whole area captured image. It is a figure for demonstrating controlling the imaging region of an imaging device in order to image | photograph the received monitoring object position. It is a figure which shows an example of the process sequence in the work assistance system at the time of a user adjusting the imaging range of an imaging device. It is a figure for demonstrating the method to control an imaging | photography area | region so that a some monitoring object position is contained in an imaging | photography area | region. It is a figure for demonstrating the method of specifying the area | region which a imaging | photography control part can select. It is a figure for demonstrating the method to display the adjustment frame which can be moved or reduced. It is a figure which shows an example of the process sequence in the work assistance system at the time of a user adjusting the imaging range of an imaging device. It is a figure for demonstrating the method to image | photograph by switching a several imaging region. It is a figure which shows an example of the process sequence in the work assistance system at the time of a user adjusting the imaging range of an imaging device. It is a figure for demonstrating the method by which an imaging | photography control part makes an imaging device produce | generate an all area | region captured image, and memorize | stores control information.

<First Embodiment>
[Outline of configuration of work support system S]
FIG. 1 is a diagram illustrating a configuration of a work support system S according to the first embodiment. The work support system S includes an imaging device 1, a mobile terminal 2, and a server 3. The imaging device 1, the mobile terminal 2, and the server 3 can transmit and receive information to and from each other via the network N. The network N includes, for example, the Internet and a mobile phone network.

  The imaging device 1 is a camera used for monitoring, captures a subject within a predetermined imaging range, and generates a captured image including the captured subject. The imaging apparatus 1 can perform a pan operation that moves the lens direction to the left and right, a tilt operation that moves the lens direction of the camera up and down, and a zoom operation that enlarges or reduces the shooting area. The imaging device 1 sequentially generates captured images at a predetermined frame rate, and transmits the generated captured images to the mobile terminal 2 or the server 3 via the network N.

  The mobile terminal 2 is, for example, a smartphone or a tablet terminal, and is an operation terminal that is operated by an installation worker (hereinafter referred to as a user) of the imaging device 1. The portable terminal 2 displays the captured image transmitted from the imaging device 1 or the server 3. A touch panel is provided on the screen of the mobile terminal 2, and the user can input an instruction to be transmitted to the server 3 by touching the screen. The portable terminal 2 transmits instruction information indicating the content of the instruction input by the user to the imaging device 1 or the server 3.

  The server 3 adjusts the installation position of the imaging device 1 based on the captured image acquired from the imaging device 1 and the instruction information acquired from the mobile terminal 2 so that the imaging region by the imaging device 1 is in an appropriate range. This information is output to at least one of the imaging device 1 and the mobile terminal 2. The server 3 may be a server installed in a business office where the imaging device 1 is installed, or may be a server on the cloud.

[Outline of process flow in work support system S]
FIG. 2 is a diagram for explaining the outline of the process flow in the work support system S.
First, the imaging apparatus 1 generates an entire area captured image obtained by imaging the entire area that can be captured by the imaging apparatus 1. The imaging device 1 transmits the generated entire area captured image to the server 3, and the server 3 acquires the entire area captured image ((1) in FIG. 2). The server 3 displays the entire area captured image on the portable terminal 2 ((2) in FIG. 2). The user inputs an instruction of a monitoring target position, which is a position to be photographed, from the entire area captured image displayed on the portable terminal 2 to the portable terminal 2. The portable terminal 2 acquires an instruction of the monitoring target position for the entire region captured image ((3) in FIG. 2), and transmits information indicating the acquired monitoring target position instruction to the server 3.

  Subsequently, the server 3 receives the monitoring target position transmitted from the mobile terminal 2 ((4) in FIG. 2). The server 3 acquires a captured image by controlling the imaging region of the imaging device 1 so as to capture a position including the monitoring target position ((5) in FIG. 2). The server 3 displays the acquired captured image on the portable terminal 2 ((6) in FIG. 2).

  As described above, the server 3 acquires the entire region captured image and acquires the monitoring target position from the portable terminal 2, whereby the imaging region of the imaging device 1 can be set. Therefore, the user can set the imaging region of the imaging device 1 by one person by inputting an instruction of an arbitrary monitoring target position with respect to the entire region captured image.

[Configuration of Imaging Device 1]
Hereinafter, a detailed configuration of the imaging apparatus 1 will be described. FIG. 3 is a diagram illustrating a configuration of the imaging apparatus 1. The imaging device 1 includes an imaging unit 11, a drive unit 12, a communication unit 13, a storage unit 14, and a control unit 15.

  The imaging unit 11 includes an optical system component including a lens and an imaging element that converts light incident through the lens into an electrical signal. The drive unit 12 includes an actuator that changes the direction of the optical axis and the zoom rate of the imaging unit 11 based on the control of the control unit 15. The communication unit 13 is a wireless or wired communication interface for transmitting / receiving information to / from the mobile terminal 2 or the server 3. For example, the communication unit 13 receives control information for controlling the drive unit 12 from the server 3.

  The storage unit 14 includes a ROM (Read Only Memory) and a RAM (Random Access Memory), and stores a program executed by the control unit 15. The storage unit 14 temporarily stores the captured image generated by the imaging unit 11 based on the control of the control unit 15.

  The control unit 15 is, for example, a CPU (Central Processing Unit). The control unit 15 executes the program stored in the storage unit 14 to control the driving unit 12 to change the direction of the optical axis of the imaging unit 11 or to cause the imaging unit 11 to generate a captured image. .

[Configuration of Server 3]
Hereinafter, a detailed configuration of the server 3 will be described.
FIG. 4 is a diagram illustrating a configuration of the server 3. The server 3 includes a communication unit 31, a storage unit 32, and a control unit 33. The communication unit 31 is a communication interface for transmitting and receiving information via the network N, and includes, for example, a LAN (Local Area Network) controller. The communication unit 31 notifies the control unit 33 of information received from the imaging device 1 or the portable terminal 2. The communication unit 31 transmits information input from the control unit 33 to the imaging device 1 or the portable terminal 2.

  The storage unit 32 is a storage medium that stores information, and includes, for example, a hard disk, a ROM, and a RAM. The storage unit 32 stores a program executed by the control unit 33. In addition, the storage unit 32 stores control information that associates the positions of the pixels included in the entire region captured image with the horizontal position and the vertical position of the imaging apparatus 1. The storage unit 32 stores, for example, control information that associates the position of the pixel in the center of the imaging region of the imaging device 1 with the horizontal position and the vertical position of the imaging device 1. When a plurality of pixels are included in the minimum angle at which the imaging device 1 can move in the horizontal direction and the vertical direction, the storage unit 32 sets the positions of the plurality of pixels in the horizontal direction and the vertical direction of the same imaging device 1. The information may be stored in association with the position.

  The control unit 33 is, for example, a CPU, and functions as a captured image acquisition unit 331, an instruction reception unit 332, and a shooting control unit 333 by executing a program stored in the storage unit 32.

  The captured image acquisition unit 331 acquires the captured image transmitted by the imaging device 1. For example, the captured image acquisition unit 331 acquires the entire region captured image of the region that can be captured by the imaging device 1. A specific method by which the captured image acquisition unit 331 acquires the entire area captured image will be described later.

  The instruction receiving unit 332 receives instruction information from the mobile terminal 2. For example, the instruction receiving unit 332 receives an instruction of the monitoring target position in the entire region captured image acquired by the captured image acquisition unit 331. Furthermore, the instruction receiving unit 332 may receive instructions for a plurality of monitoring target positions. Specifically, the instruction receiving unit 332 acquires coordinate data of the monitoring target position for the entire region captured image as the monitoring target position instruction.

  The shooting control unit 333 controls the shooting area of the imaging device 1. For example, the imaging control unit 333 controls the imaging area by transmitting an instruction to move the driving unit 12. In addition, the imaging control unit 333 causes the imaging device 1 to generate a captured image obtained by capturing the controlled imaging region. Specifically, the imaging control unit 333 causes the imaging device 1 to generate a captured image by transmitting an instruction to generate a captured image. The imaging control unit 333 controls the imaging region based on the control information stored in the storage unit 32, and causes the imaging device 1 to sequentially capture the entire region of the imageable region A, thereby generating the entire region captured image. The captured image acquisition unit 331 acquires the generated entire area captured image. Hereinafter, a method in which the captured image acquisition unit 331 acquires the entire region captured image obtained by capturing the entire region of the shootable region A will be described in detail.

  FIG. 5 is a diagram for explaining a method by which the captured image acquisition unit 331 acquires the entire region captured image. FIG. 5A is a diagram for explaining an operation of the imaging apparatus 1 when the captured image acquisition unit 331 acquires the entire area captured image. The control unit 15 of the imaging apparatus 1 can move the imaging region to the right by causing the drive unit 12 to pan rightward based on the control information received from the server 3. Similarly, the control unit 15 can move the imaging region downward by tilting the drive unit 12 downward based on the control information received from the server 3. By doing in this way, the control part 15 can move the imaging | photography area | region of the imaging device 1 up and down, right and left.

  FIG. 5B is a diagram for describing a method in which the captured image acquisition unit 331 acquires the entire region captured image obtained by capturing the entire region of the shootable region A. First, the imaging control unit 333 moves the imaging area of the imaging device 1 to the position of the upper left corner of the imaging possible area A (position of the imaging area R11 in FIG. 5B). Subsequently, the imaging control unit 333 causes the imaging unit 11 of the imaging device 1 to generate a captured image at the position of the imaging region R11. The communication unit 13 of the imaging device 1 transmits the generated captured image to the server 3. Then, the captured image acquisition unit 331 acquires the transmitted captured image.

  Next, the imaging control unit 333 moves the imaging area of the imaging device 1 to the position of the imaging area R21 adjacent to the imaging area R11. The imaging control unit 333 causes the imaging unit 11 to generate a captured image at the position of the imaging region R21. The communication unit 13 of the imaging device 1 transmits the generated captured image to the server 3. Then, the captured image acquisition unit 331 acquires the transmitted captured image.

  The imaging control unit 333 repeats the process of moving the imaging area to the right and causing the imaging unit 11 to generate a captured image at the position where the imaging area is moved until the imaging area moves to the upper right corner of the imageable area A. When the shooting control unit 333 generates a captured image obtained by shooting the position of the upper right corner of the shootable area A, the shooting control unit 333 moves the shooting area to the upper left corner of the shootable area A. The imaging control unit 333 moves the imaging area from the position of the upper left corner of the imageable area A to the position of the imaging area R12 in the downward direction, and causes the imaging unit 11 to generate a captured image at the position of the imaging area R12.

  The imaging control unit 333 repeats the process of moving the imaging area to the right and causing the imaging unit 11 to generate a captured image at the position where the imaging area is moved until the imaging area moves to the right end of the imageable area A. As described above, the imaging control unit 333 sequentially moves the imaging region, and causes the imaging unit 11 to generate a captured image at the moved position. The communication unit 13 of the imaging apparatus 1 sequentially transmits the generated captured image to the server 3. And the captured image acquisition part 331 acquires the transmitted captured image sequentially. The captured image acquisition unit 331 generates an all-region captured image by combining the acquired captured images. In this way, the captured image acquisition unit 331 can acquire the entire region captured image. The captured image acquisition unit 331 notifies the captured control unit 333 of the acquired entire area captured image.

  Note that the imaging apparatus 1 generates an entire area captured image obtained by combining the captured images of the imaging areas illustrated in FIG. 5B, and the captured image acquisition unit 331 generates the entire area captured image generated by the imaging apparatus 1. You may get it.

  The imaging control unit 333 controls the imaging area of the imaging apparatus 1 so as to capture the monitoring target position indicated by the instruction received by the instruction receiving unit 332. Specifically, the imaging control unit 333 specifies the horizontal position and the vertical position of the imaging apparatus 1 corresponding to the monitoring target position based on the control information stored in the storage unit 32, whereby the imaging apparatus 1 imaging area is controlled. Hereinafter, a specific method in which the imaging control unit 333 controls the imaging area of the imaging apparatus 1 will be described.

(Process to image the monitoring target position)
FIG. 6 is a diagram for explaining a method of controlling the imaging region of the imaging apparatus so as to capture the received monitoring target position. FIG. 6A is a diagram illustrating a state in which the imaging apparatus 1 is shooting a shooting area near the upper left of the entire area shooting area. In FIG. 6A, the center O of the imaging region is indicated by a white circle. 6A shows that the instruction receiving unit 332 has received the monitoring target position P1 indicated by a black circle.

  When the instruction receiving unit 332 receives the monitoring target position P1, the imaging control unit 333 specifies the position of the monitoring target position P1 in the entire region captured image. The imaging control unit 333 moves the imaging area so that the monitoring target position P1 is the center of the imaging area. Specifically, the imaging control unit 333 uses the position of the monitoring target position P1 and the position of the center O of the imaging area in the entire area captured image to move the horizontal movement amount X and the vertical direction of the imaging apparatus 1. The movement amount Y is calculated. The imaging control unit 333 moves the imaging area by the movement amount X in the horizontal direction and moves it by the movement amount Y in the vertical direction so that the monitoring target position P1 is included in the imaging area and becomes the center of the imaging area. Can be controlled. FIG. 6B is a diagram illustrating a state in which the imaging control unit 333 moves the imaging area and the monitoring target position P1 is included in the imaging area and is controlled to be the center of the imaging area. Hereinafter, a processing sequence for imaging the monitoring target position will be described with reference to FIG.

  FIG. 7 is a diagram illustrating an example of a processing sequence in the work support system S when the user adjusts the imaging range of the imaging device. First, the imaging device 1 generates an entire area captured image (S11), and transmits the generated entire area captured image to the server 3. The server 3 transfers the received whole-area captured image to the mobile terminal 2.

  The portable terminal 2 displays the received whole-area captured image on the screen, and acquires the monitoring target position by receiving the input of the position to be the center of the imaging area from the user in the displayed all-area captured image (S12). The mobile terminal 2 transmits information indicating the acquired monitoring target position to the server 3.

  The imaging control unit 333 of the server 3 sets an imaging area centered on the monitoring target position (S13). The imaging control unit 333 transmits control information for imaging the set imaging area to the imaging apparatus 1. The imaging device 1 generates a captured image obtained by capturing the imaging region (S14), and transmits the generated captured image to the server 3. The server 3 transfers the received captured image to the mobile terminal 2. The portable terminal 2 displays the received captured image on the screen.

  In this way, the user can set an imaging region including the monitoring target position by simply selecting an arbitrary monitoring target position in the entire region captured image, so that the imaging device 1 can be installed alone. Thus, the number of workers can be reduced.

(Method for imaging an imaging area including a plurality of monitoring target positions)
When the instruction receiving unit 332 receives a plurality of monitoring target positions, the shooting control unit 333 may control the shooting region so that the plurality of monitoring target positions are included in the shooting region. FIG. 8 is a diagram for explaining a method of controlling the imaging region so that a plurality of monitoring target positions are included in the imaging region. FIG. 8A is a diagram illustrating that the instruction receiving unit 332 has received three monitoring target positions of the monitoring target positions P1 to P3 in the entire region captured image. The imaging control unit 333 specifies the positions of the monitoring target positions P1 to P3, and calculates the position of the center of gravity G of the three monitoring target positions indicated by white circles. The imaging control unit 333 controls the imaging device 1 so that the position of the center of gravity G is the center of the imaging area. FIG. 8B is a diagram illustrating a state in which the imaging control unit 333 controls the imaging area so that the three monitoring target positions are included in the imaging area.

  The imaging control unit 333 may change the size of the imaging area after specifying an imaging area including a plurality of monitoring target positions. For example, the shooting control unit 333 controls the shooting area so that a plurality of monitoring target positions included in the shooting area are shot larger. FIG. 8C is a diagram illustrating that the shooting control unit 333 has controlled the shooting area so that a plurality of monitoring target positions included in the shooting area are shot larger. The imaging control unit 333 can capture a large number of monitoring target positions by adjusting the zoom range. In this way, when the user wants to shoot a plurality of monitoring target positions, the user sets an imaging region including a plurality of monitoring target positions simply by selecting a plurality of monitoring target positions in the entire region captured image. Therefore, the shooting area can be set easily.

  Note that the shooting control unit 333 indicates that, even in the most zoomed-out state, if a plurality of monitoring target positions cannot be included in the shooting area that can be shot by the imaging apparatus 1, they cannot be included in the shooting area that can be shot. Error information is transmitted to the mobile terminal 2. By receiving the error information, the user can set the imaging region including a plurality of monitoring target positions again, and thus can prevent the monitoring target position from being shot after installation. In the above description, three monitoring target positions are received as a plurality of monitoring target positions, but the number of receiving monitoring target positions may be four or more, and is not particularly limited.

(Process to display the area where the monitoring target position can be selected)
As described above, a plurality of monitoring target positions specified by the user may not be included in one captured image even when the imaging apparatus 1 is zoomed in most. Therefore, when the first monitoring target position is selected, the imaging control unit 333 inputs information indicating an area in which the second monitoring target position different from the first monitoring target position can be selected, and inputs the monitoring target position instruction. May be displayed on the portable terminal 2. For example, the imaging control unit 333 causes the portable terminal 2 to display information indicating areas that can be selected based on imaging areas that can be captured by the imaging apparatus 1. Specifically, when the instruction receiving unit 332 receives the first monitoring target position P1, the shooting control unit 333 specifies a plurality of shooting areas in which the first monitoring target position P1 can be shot, and the plurality of shooting areas. The selectable area is specified based on the above. FIG. 9 is a diagram for explaining a method for specifying an area that can be selected by the imaging control unit 333.

  In FIG. 9, it is assumed that the instruction receiving unit 332 has received the first monitoring target position P1, and the imaging control unit 333 has specified the first monitoring target position in the entire region captured image. The imaging control unit 333 specifies the imaging areas a to d as a plurality of imaging areas including the first monitoring target position. A shooting area a indicated by a broken line is a shooting area in which the first monitoring target position P1 can be shot at the lower right corner of the shooting area. An imaging region b indicated by a two-dot broken line is an imaging region in which the first monitoring target position P1 can be imaged at the lower left corner of the imaging region. A shooting area c indicated by a one-dot chain line is a shooting area in which the first monitoring target position P1 can be shot at the upper right corner of the shooting area. A shooting area d indicated by a dotted line is a shooting area in which the first monitoring target position P1 can be shot at the upper left corner of the shooting area.

  The imaging control unit 333 specifies selectable areas including the specified imaging areas a to d. The imaging control unit 333 causes the mobile terminal 2 to display information indicating the specified selectable area. For example, the imaging control unit 333 causes the portable terminal 2 to display a frame indicating a selectable region on the entire region captured image. In this way, when instructing a plurality of monitoring target positions, the user can confirm a range in which the second monitoring target position can be instructed after instructing the first monitoring target position. it can. Therefore, the user can be prevented from selecting a monitoring target position that cannot be included in the imaging region at the same time as the first monitoring target position.

(Process to display the adjustment frame and set the shooting area)
The imaging control unit 333 displays area information indicating an imaging area that can be imaged by the imaging apparatus 1 on the portable terminal 2 that inputs an instruction of a monitoring target position, and controls the imaging area based on a reduction instruction or a movement instruction for the area information. May be. For example, the imaging control unit 333 causes the mobile terminal 2 to display an entire area captured image and an adjustment frame that can be moved or reduced indicating the imaging area of the maximum size that can be captured by the imaging apparatus 1 as area information. The user can input a movement instruction or a reduction instruction to the adjustment frame displayed on the mobile terminal 2 and superimposed on the entire area captured image. The instruction receiving unit 332 receives a movement instruction or a reduction instruction for the adjustment frame. The imaging control unit 333 controls the imaging area based on the movement instruction or the reduction instruction received by the instruction receiving unit 332. FIG. 10 is a diagram for explaining a method of displaying an adjustment frame that can be moved or reduced.

  FIG. 10A is a diagram schematically illustrating that the adjustment frame a is superimposed on the entire region captured image and displayed on the display unit of the mobile terminal 2. In FIG. 10A, it is assumed that the user has input an instruction to reduce the adjustment frame a to the adjustment frame b. The shooting control unit 333 controls the shooting area so that the size of the adjustment frame received by the instruction receiving unit 332 is the same as that of the frame reduced by the reduction instruction. FIG. 10B is a diagram illustrating a state in which the shooting control unit 333 controls the shooting area so as to have the same size as the reduced frame.

  FIG. 10C is a diagram schematically illustrating that the adjustment frame a is superimposed on the entire region captured image and displayed on the display unit of the mobile terminal 2, as in FIG. 10A. In FIG. 10C, it is assumed that the user has input an instruction to move the position of the adjustment frame a to the position of the adjustment frame b. The imaging control unit 333 controls the imaging area so that the position is the same as the position of the frame moved by the movement instruction with respect to the adjustment frame received by the instruction receiving unit 332. Hereinafter, a processing sequence for setting an imaging region by displaying an adjustment frame will be described with reference to FIG.

  FIG. 11 is a diagram illustrating an example of a processing sequence in the work support system S when the user adjusts the imaging range of the imaging device. First, the imaging device 1 generates an entire area captured image (S11), and transmits the generated entire area captured image to the server 3.

  When receiving the entire area captured image, the imaging control unit 333 generates an adjustment frame (S21), and transmits the entire area captured image and information indicating the adjustment frame to the mobile terminal 2. The portable terminal 2 displays the received whole-area captured image and information indicating the adjustment frame on the screen, and receives the movement instruction or the reduction instruction for the adjustment frame, thereby acquiring the movement instruction or the reduction instruction (S22). . The portable terminal 2 transmits the acquired movement instruction or reduction instruction to the server 3.

  The imaging control unit 333 of the server 3 sets an imaging area based on the movement instruction or the reduction instruction (S23). The imaging control unit 333 transmits control information for imaging the set imaging area to the imaging apparatus 1. The imaging device 1 generates a captured image obtained by capturing the imaging region (S24), and transmits the generated captured image to the server 3. The server 3 transfers the received captured image to the mobile terminal 2. The portable terminal 2 displays the received captured image on the screen.

  In this way, the user can input a movement instruction or a reduction instruction for the imaging area while confirming the imaging area, so how to capture the monitoring target position and the vicinity of the monitoring target position. Can be set easily.

(Process to capture images by switching multiple shooting areas)
The imaging control unit 333 may control the imaging device 1 so as to switch and shoot a plurality of imaging regions associated with a plurality of monitoring target positions received by the instruction receiving unit 332. For example, the imaging control unit 333 causes the mobile terminal 2 to display a plurality of adjustment frames in association with a plurality of monitoring target positions. For example, the imaging control unit 333 sets a plurality of imaging regions such that each of the plurality of monitoring target positions is the center. The imaging control unit 333 may set a plurality of imaging regions in association with a plurality of monitoring target positions based on a movement instruction or a reduction instruction for each of the plurality of adjustment frames. The imaging control unit 333 controls the imaging apparatus 1 so as to perform imaging by switching a plurality of imaging areas. For example, when the instruction receiving unit 332 receives a switching instruction to switch the shooting area, the shooting control unit 333 controls the imaging apparatus 1 to switch the shooting area and perform shooting.

  FIG. 12 is a diagram for explaining a method of shooting by switching a plurality of shooting areas. In FIG. 12, it is assumed that the imaging control unit 333 has set the imaging regions R1 to R3. The imaging region R1 is an imaging region centered on the monitoring target position P1. The imaging area R2 is an imaging area that is larger than the imaging area R1 with the center of gravity of the monitoring target positions P2 and P3 as the center. The imaging area R3 is an imaging area smaller than the imaging area R1 with the monitoring target position P3 as the center. As described above, the shooting control unit 333 may set a different shooting area size for each shooting area. Further, the shooting control unit 333 may set a different zoom magnification for each shooting region.

  The imaging control unit 333 controls the imaging device 1 to image the imaging area R1. The imaging control unit 333 transmits the captured image PCT1 obtained by imaging the imaging region R1 by the imaging unit 11 of the imaging device 1 to the mobile terminal 2.

  The portable terminal 2 displays the received captured image PCT1 on the screen. The user can confirm the captured image PCT <b> 1 displayed on the screen of the mobile terminal 2 and can input a switching instruction to switch the shooting area to the mobile terminal 2. Then, when the instruction receiving unit 332 receives a switching instruction to switch the shooting region, the shooting control unit 333 controls the imaging device 1 to shoot the shooting region R2. Then, the imaging control unit 333 transmits the captured image PCT2 obtained by imaging the imaging region R2 by the imaging unit 11 of the imaging device 1 to the mobile terminal 2. Hereinafter, a processing sequence for imaging by switching a plurality of imaging regions will be described with reference to FIG.

  FIG. 13 is a diagram illustrating an example of a processing sequence in the work support system S when the user adjusts the imaging range of the imaging device. First, the imaging device 1 generates an entire area captured image (S11), and transmits the generated entire area captured image to the server 3. The server 3 transfers the received whole-area captured image to the mobile terminal 2.

  The mobile terminal 2 displays the received all-area captured image on the screen, and receives a plurality of monitoring target positions from the user in the displayed all-area captured image, thereby acquiring a plurality of monitoring target positions (S30). The mobile terminal 2 transmits information indicating the acquired plurality of monitoring target positions to the server 3.

  The imaging control unit 333 of the server 3 sets a plurality of imaging areas in association with a plurality of monitoring target positions (S31). The imaging control unit 333 sets a first imaging area that is one of the plurality of imaging areas (S32). The imaging control unit 333 transmits control information for imaging the set first imaging area to the imaging apparatus 1. The imaging device 1 generates a first captured image obtained by capturing the first imaging region (S33), and transmits the generated first captured image to the server 3. The server 3 transfers the received first captured image to the mobile terminal 2. The mobile terminal 2 displays the received first captured image on the screen.

  The portable terminal 2 receives the switching instruction to switch the imaging area from the user, and acquires the imaging area switching instruction (S35). The portable terminal 2 transmits information indicating the acquired switching instruction to the server 3.

  When receiving the switching instruction, the imaging control unit 333 of the server 3 newly sets a second imaging area different from the first imaging area (S36). The imaging control unit 333 transmits control information for imaging the newly set second imaging area to the imaging apparatus 1. The imaging device 1 generates a second captured image obtained by imaging the second imaging region (S37), and transmits the generated second captured image to the server 3. The server 3 transfers the received second captured image to the mobile terminal 2. The portable terminal 2 displays the received second captured image on the screen.

  By doing in this way, since the user can confirm sequentially the picked-up image which image | photographed the several imaging region, the installation operation | work of the imaging device 1 can be performed easily. In the above description, the imaging control unit 333 sequentially switches the imaging area based on the switching instruction. However, the present invention is not limited to this, and selects any one of the plurality of imaging areas received by the instruction receiving unit 332. The imaging region may be switched based on the switching instruction to be performed. By doing so, the user can select any one of the plurality of shooting areas and check the captured image, so that workability is improved. Further, since the user can move or reduce the selected shooting area, it is easy to adjust each shooting area, and the workability of the installation work is improved.

  The imaging control unit 333 may switch the plurality of imaging areas every time a predetermined imaging time elapses. First, the imaging control unit 333 controls the imaging device 1 to image the imaging region R1. Next, when a predetermined shooting time has elapsed, the shooting control unit 333 controls the imaging device 1 to shoot the shooting region R2. Subsequently, when a predetermined shooting time has elapsed, the shooting control unit 333 controls the imaging device 1 to shoot the shooting region R3. Then, when a predetermined shooting time elapses, the shooting control unit 333 controls the imaging device 1 to capture the shooting region R1 again. Here, the predetermined shooting time is a checkable time required for the user to check the captured image, and is, for example, 10 seconds. However, the predetermined shooting time is not limited to this, and can be arbitrarily set by the user.

  The photographing control unit 333 can photograph a plurality of photographing regions by controlling so as to automatically switch the photographing regions R1 to R3. By doing in this way, the user can check a plurality of captured images without inputting a switching instruction to switch the plurality of set shooting areas. For example, while holding the mobile terminal 2 with one hand, This is suitable when working with one hand.

(Modification)
In the above description, the instruction receiving unit 332 receives the monitoring target position, and the shooting control unit 333 controls the shooting area to shoot the monitoring target position. However, the present invention is not limited to this, and the imaging region may be controlled so that the instruction receiving unit 332 receives the shooting prohibited position and the shooting control unit 333 does not shot the shooting prohibited position. For example, the imaging control unit 333 sets a mask area that does not capture an imaging prohibition position, and transmits error information to the mobile terminal 2 when the imaging area includes a mask area. By doing in this way, the server 3 can prevent the user from setting an area that should not be taken by mistake as an imaging area.

[Effects of the work support system S of the first embodiment]
As described above, in the work support system S of the first embodiment, the imaging control unit 333 captures the monitoring target position indicated by the instruction received by the instruction receiving unit 332 for the entire area captured image. The imaging area of the imaging device 1 is controlled. By doing in this way, the user can adjust the imaging region of the imaging device 1 easily only by designating an arbitrary monitoring target position in the entire region captured image.

<Second Embodiment>
In the work support system S of the first embodiment, the server 3 generates control information. However, in the work support system S of the second embodiment, the mobile terminal 2 generates control information. Different. For example, when the CPU of the mobile terminal 2 executes the program, functions equivalent to the captured image acquisition unit 331, the instruction reception unit 332, and the imaging control unit 333 in the server 3 of the first embodiment are executed.

  The imaging device 1 generates an entire area captured image and transmits the generated entire area captured image to the mobile terminal 2. The mobile terminal 2 displays the received whole-area captured image on the screen, and acquires the monitoring target position by receiving the input of the position to be the center of the imaging area from the user in the displayed all-area captured image. The mobile terminal 2 sets a shooting area centered on the monitoring target position, and transmits control information for shooting the set shooting area to the imaging apparatus 1. The imaging device 1 generates a captured image obtained by capturing an imaging region, and transmits the generated captured image to the mobile terminal 2. The portable terminal 2 displays the received captured image on the screen.

[Effects of the work support system S of the second embodiment]
As described above, according to the work support system S of the second embodiment, by using the imaging device 1 and the mobile terminal 2 without using the server 3, one user can set the imaging range of the imaging device 1. It can be adjusted easily.

<Third Embodiment>
In the work support system S of the first and second embodiments, control information that associates the positions of pixels included in the entire region captured image with the horizontal position and the vertical position of the image capturing apparatus 1 in advance is stored in the server. 3 in the storage unit 32. In the work support system S of the third embodiment, the imaging control unit 333 of the server 3 controls the imaging device 1 to generate the entire area captured image and stores the control information in the storage unit 32 of the server 3. It is different in point.

  FIG. 14 is a diagram for describing a method in which the imaging control unit 333 causes the imaging device 1 to generate the entire area captured image and to store the control information. First, the imaging control unit 333 moves the imaging area of the imaging device 1 to the upper left corner of the imageable area A. The imaging control unit 333 causes the imaging device 1 to generate a captured image A1 at the upper left corner of the imageable area A. The shooting control unit 333 associates the horizontal and vertical positions of the imaging device 1 with the position of the center pixel of the captured image A1 and stores them in the storage unit 32.

  Next, the imaging control unit 333 moves the imaging area of the imaging apparatus 1 by the minimum unit θ of the horizontal movement amount to the right in the horizontal direction from the captured image A1. The imaging control unit 333 causes the imaging device 1 to generate the captured image At in the moved imaging area. FIG. 14A is a diagram schematically illustrating a state in which the imaging control unit 333 causes the imaging device 1 to generate the captured image A1 and the captured image At. In FIG. 14A, a hatched area is a common image Rs of the captured image A1 and the captured image At.

  The imaging control unit 333 combines the image A2 excluding the common image Rs between the captured image A1 and the captured image At with the captured image A1. FIG. 14B is a diagram schematically illustrating a state in which the imaging control unit 333 combines the image A2 with the captured image A1. The imaging control unit 333 associates and stores the minimum unit θ of the horizontal movement amount and the position of the center pixel of the image A2.

  The imaging control unit 333 moves the imaging area of the imaging device 1 to the right in the horizontal direction for each minimum unit θ of the horizontal movement amount, and causes the imaging device 1 to newly generate a captured image At in the moved imaging area. The imaging control unit 333 combines the image Ax excluding the common image of the newly generated captured image At and the captured image that has already been captured and combined with the captured image that has already been captured and combined. The imaging control unit 333 associates and stores the movement amount θx obtained by moving the imaging area of the imaging device 1 in the horizontal direction from the position of the captured image A1 and the position of the center pixel of the image Ax. The imaging control unit 333 repeats the above operation until the imaging area of the imaging device 1 cannot be moved to the right in the horizontal direction.

  The imaging control unit 333 moves the imaging area of the imaging device 1 to the upper left corner of the imaging enabled area A when the imaging area of the imaging device 1 cannot move to the right in the horizontal direction. The imaging control unit 333 moves the imaging area of the imaging apparatus 1 by the minimum unit φ of the vertical movement amount from the upper left end of the imageable area A to the lower side in the vertical direction. The imaging control unit 333 causes the imaging device 1 to generate the captured image Bt in the moved imaging area. The shooting control unit 333 combines the image B1 excluding the common image of the captured image Bt and the captured image that has already been captured and combined with the captured image that has already been captured and combined. The imaging control unit 333 associates and stores the minimum unit φ of the vertical movement amount and the position of the center pixel of the image B1.

  The imaging control unit 333 moves the imaging area of the imaging apparatus 1 to the right in the horizontal direction by the minimum unit θ of the horizontal movement amount. The imaging control unit 333 causes the imaging device 1 to newly generate a captured image Bt in the moved imaging area. The imaging control unit 333 combines the image B2 excluding the common image of the newly generated captured image Bt and the captured image that has already been captured and combined with the captured image that has already been captured and combined.

  The imaging control unit 333 moves the imaging region of the imaging device 1 to the right in the horizontal direction for each minimum unit θ of the horizontal movement amount, and causes the imaging device 1 to newly generate a captured image Bt in the moved imaging region. The shooting control unit 333 combines the newly-captured captured image Bt and the image By excluding the common image of the captured image that has already been captured and combined with the captured image that has already been captured and combined. The imaging control unit 333 displays a movement amount θx obtained by moving the imaging region of the imaging apparatus 1 in the horizontal direction from the position of the captured image A1, a movement amount φy moved in the vertical direction from the position of the captured image A1, and the image By. The positions of the included pixels are stored in association with each other. The imaging control unit 333 repeats the above operation until the imaging area of the imaging device 1 cannot be moved to the right in the horizontal direction.

  The imaging control unit 333 repeats the above operation until the imaging area of the imaging device 1 cannot be moved in the horizontal direction and the vertical direction. FIG. 14C is a diagram schematically illustrating a state in which the imaging control unit 333 has generated a captured image in the entire shootable area A of the imaging device 1. As described above, the imaging control unit 333 can cause the imaging device 1 to generate a full-area captured image. In addition, the imaging control unit 333 can store the control information in which the pixel positions included in the entire region captured image are associated with the horizontal position and the vertical position of the imaging device 1 in the storage unit 32.

  In the above description, the imaging control unit 333 starts the process of generating the entire region captured image from the upper left corner, but is not limited thereto, and the upper right corner, the lower left corner, Or you may start from a lower right end. The imaging control unit 333 generates the entire area captured image by generating the captured image while moving the imaging area from one of the four corner positions of the imageable area A of the imaging apparatus 1 toward the diagonal position. Let

[Effect of the third embodiment]
As described above, in the work support system S of the third embodiment, the imaging control unit 333 of the server 3 controls the imaging device 1 to generate the entire area captured image, and the control information is transmitted to the server 3. The data is stored in the storage unit 32. By doing in this way, the work support system S of the third embodiment can correct individual differences due to variations in manufacturing of the imaging device 1, and therefore sets a highly accurate monitoring target position and imaging region. It is suitable when necessary.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there. For example, the specific embodiments of device distribution / integration are not limited to the above-described embodiments, and all or a part of them may be configured to be functionally or physically distributed / integrated in arbitrary units. Can do. In addition, new embodiments generated by any combination of a plurality of embodiments are also included in the embodiments of the present invention. The effect of the new embodiment produced by the combination has the effect of the original embodiment.

DESCRIPTION OF SYMBOLS 1 Imaging device 2 Portable terminal 3 Server 11 Imaging part 12 Drive part 13 Communication part 14 Storage part 15 Control part 31 Communication part 32 Storage part 33 Control part 331 Captured image acquisition part 332 Instruction reception part 333 Shooting control part

Claims (6)

A captured image acquisition unit that acquires an entire region captured image of a region that can be captured by the imaging device;
An instruction receiving unit that receives an instruction of a monitoring target position in the entire region captured image acquired by the captured image acquisition unit;
A storage unit that stores control information that associates the positions of pixels included in the entire region captured image with the horizontal position and the vertical position of the imaging apparatus;
In order to photograph the monitoring target position indicated by the instruction received by the instruction receiving unit, the horizontal position and the vertical direction of the imaging device corresponding to the monitoring target position based on the control information stored in the storage unit A shooting control unit that controls a shooting region of the imaging device by specifying a position;
An imaging control apparatus having The instruction receiving unit receives instructions of a plurality of the monitoring target positions,
The imaging control unit controls the imaging area such that the plurality of monitoring target positions are included in the imaging area;
The imaging control apparatus according to claim 1. When the first monitoring target position is selected, the shooting control unit can select a second monitoring target position different from the first monitoring target position based on the shooting area where the imaging apparatus can shoot. Display information indicating a specific area on a terminal that inputs an instruction of the monitoring target position,
The imaging control apparatus according to claim 1 or 2. The shooting control unit displays information indicating a shooting area of the maximum size that can be shot by the imaging device on a terminal that inputs an instruction of the monitoring target position,
The instruction receiving unit receives a movement instruction or a reduction instruction for the imaging area of the maximum size,
The imaging control unit controls the imaging area based on the movement instruction or the reduction instruction;
The imaging | photography control apparatus as described in any one of Claim 1 to 3. The instruction receiving unit receives instructions of a plurality of the monitoring target positions,
The imaging control unit controls the imaging apparatus to switch and shoot a plurality of the imaging regions associated with the plurality of monitoring target positions received by the instruction receiving unit;
The imaging | photography control apparatus as described in any one of Claim 1 to 4. Computer
A captured image acquisition unit that acquires an entire region captured image of an area that can be captured by the imaging device;
An instruction receiving unit that receives an instruction of a monitoring target position in the entire region captured image acquired by the captured image acquisition unit, and the whole region captured image to capture the monitoring target position indicated by the instruction received by the instruction receiving unit Based on the control information that associates the position of the pixel included in the image pickup apparatus with the position in the horizontal direction and the position in the vertical direction of the image pickup apparatus. A shooting control unit that controls a shooting region of the imaging device by specifying a position;
Program to function as.

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