KR102003775B1 - Method and apparatus of controlling filming route of a camera - Google Patents

Abstract

A camera shooting route control method according to one aspect, wherein the shooting route includes a moving route between the shooting area and the shooting area, and acquiring a continuous drag signal for setting the shooting route; Obtaining a movement signal and a sustain signal from the drag signal; And setting the photographing area based on the maintenance signal, and setting the movement route based on the movement signal.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and apparatus for controlling a shooting route of a camera,

The present invention relates to a method and an apparatus for controlling a photographing path of a camera using a drag signal.

The traditional security system using CCTV is a system that receives the images acquired through the camera through the network and monitors the situation directly through the monitor or stores it in a DVR, System.

Such a video security system is required to undergo new changes due to the limitation of direct monitoring and analysis due to the rapid diffusion of CCTV, and the necessity of a real-time monitoring system instead of post-processing. For example, an intelligent video security system is required. Intelligent video surveillance system is applied to various fields ranging from management of major national facilities such as airport, military, port, road and bridge to management of subway, bus, building, stadium, parking lot, It is possible.

Meanwhile, in order to perform wide area surveillance using a limited infrastructure, a pan-tilt device can be attached to the camera. Cameras with pan / tilt devices can be panned and tilted, and can be used as PTZ cameras that allow zooming of the lens. Using the PTZ camera, it is possible to move the shooting area, so that it is possible to efficiently monitor a large area with a single camera.

An example of a method of setting a moving path of a shooting region (hereinafter referred to as a shooting path) is a method of moving the shooting region of the camera to another position after the user moves to a desired position and stays at a desired position. Thus, there is a need for a control method that allows a user to easily set a desired shooting route.

For example, according to the invention disclosed in Japanese Unexamined Patent Application Publication No. 2005-0062859 (entitled Positioning Method of Surveillance Camera), when a user clicks a desired surveillance position with a mouse, the surveillance camera is moved to the surveillance position where the surveillance camera is clicked, The tilt adjustment value is set.

Korean Patent Publication No. 2005-0062859

And a method and an apparatus for controlling a photographing route of a camera. In detail, a method and apparatus for setting a movement path between a plurality of surveillance regions and a surveillance region from a mouse drag signal are provided. The technical problem to be solved by this embodiment is not limited to the above-mentioned technical problems, and other technical problems can be deduced from the following embodiments.

The camera shooting route control method according to one aspect, wherein the shooting route includes a moving route between the shooting area and the shooting area, and the camera shooting route control method includes acquiring a continuous drag signal for setting the shooting route ; Obtaining a movement signal and a sustain signal from the drag signal; And setting the photographing area based on the maintenance signal, and setting the movement route based on the movement signal.

Wherein the holding signal is a signal of an interval in which the input position of the drag signal is maintained within a predetermined range within an error range exceeding a predetermined threshold time, The setting step sets the photographing area based on the input position of the holding signal, sets the moving path based on the velocity and the path of the moving signal, and holds the holding signal And sets a time for photographing the photographing range based on the time.

A camera photographing route control device according to another aspect, wherein the photographing route includes a moving route between the photographing area and the photographing area, and the camera photographing route control device includes a signal for acquiring a continuous drag signal for setting the photographing route An acquisition unit; A signal processing unit for obtaining a moving signal and a holding signal from the drag signal; And a shooting route setting unit for setting the shooting area based on the holding signal and setting the moving route based on the moving signal.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the above-described embodiments, the photographing path of the camera can be intuitively and effectively controlled by setting the photographing path of the camera using the drag signal.

1 schematically illustrates a surveillance system according to one embodiment.
2 is a configuration diagram of a control apparatus according to an embodiment.
3 is a flowchart of a camera shooting route control method according to an embodiment.
FIG. 4 shows an example of a drag signal and a shooting path set corresponding to the drag signal according to an embodiment.

These embodiments are capable of various transformations, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the embodiments, and how to achieve them, will be apparent from the following detailed description taken in conjunction with the drawings. However, the embodiments are not limited to the embodiments described below, but may be implemented in various forms.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding parts throughout the drawings, and a duplicate description thereof will be omitted.

1 schematically illustrates a surveillance system according to one embodiment.

The surveillance system includes a camera 10, a control device 20, and an input / output device 30. In order to prevent the characteristic of the present embodiment from being blurred, only the components related to the present embodiment are shown in Fig. Therefore, it will be understood by those skilled in the art that other general-purpose components other than the components shown in FIG. 1 may be further included.

Referring to FIG. 1, a camera 10 transmits video signals to a control device 20. The video signals received at the control device 20 are displayed through the display device 31 while being stored in a recording device, for example, a hard disk.

The camera 10 acquires a video signal for an area to be photographed. The camera 10 may be a surveillance camera that photographs the photographing area in real time for the purpose of surveillance or security. The camera 10 may be a PTZ camera capable of panning and tilting with a pan-tilt device and capable of adjusting a zoom magnification of the lens. Although only one camera 10 is shown in FIG. 1, this is for convenience of explanation. In one embodiment, another monitoring system may include a plurality of cameras, and each camera can perform monitoring in cooperation with each other.

The input / output device 30 may include a display device 31 for displaying an image and a mouse 32 for acquiring a user's input signal. However, the present invention is not limited to this example, and an input device such as a joystick, a touch pad, and an electronic pen may be included.

The control device 20 controls the operation of the camera 10 according to the camera control method according to an embodiment of the present invention. The related contents will be described in detail with reference to FIG. 2 to FIG. The control device 20 may correspond to at least one processor or may include at least one or more processors. The control device 20 may be operated in the form embedded in other hardware devices such as a microprocessor or a general purpose computer system.

In the following description, the photographing path includes at least one of a photographing region to be photographed using a camera, a photographing order of each photographing region, and a path that moves between the photographing regions. For example, the photographing path includes a moving path between the photographing area and the photographing area.

2 is a block diagram of the control apparatus of FIG. 1 according to an embodiment.

2, the control device 20 includes a signal acquisition unit 21, a signal processing unit 22, a photographing path setting unit 23, and an output unit 24. [ The control device 20 controls the shooting route of the camera (10 in Fig. 1). For example, the control device 20 controls the shooting route of the camera based on the input signal of the user. The user inputs a signal for setting a photographing route of the camera using an input device such as a mouse, a touch pad, or a joystick.

The signal acquisition unit 21 acquires a user's input signal for setting a photographing route. The user can directly input the drag signal on the photographing area of the camera displayed on the display using the input device. For example, the user inputs a drag signal corresponding to the photographing route of the camera. The drag signal may include an operation of staying at the first position and then moving to the second position and staying again.

The drag signal can be a continuous input. The drag signal can be input by a mouse or by a user's direct touch. For example, the drag signal can be input with a continuous mouse click, or can be input with a continuous touch of the user. Joystick, or electronic pen may be used.

The signal acquisition unit 21 acquires a continuous drag signal for setting the shooting route. The signal acquisition unit 21 can acquire an input signal from a time point when the input of the signal is started to a time point when the signal is input, as a drag signal.

The signal processing unit 22 processes and analyzes the drag signal acquired by the signal acquisition unit 21. [ For example, the signal processing unit 22 acquires a moving signal and a holding signal from the drag signal. The movement signal is a signal of a section during which the input position of the drag signal is not constant and moves, and the hold signal is a section signal in which the input position of the drag signal is kept constant to some extent.

The fact that the input position is kept constant includes the case where the input position is kept within the error range. Since the user directly inputs the drag signal, even if the user intends to input a signal at a specific position, the coordinates at which the signal is inputted due to the shaking or the like may be changed finely.

When the input position of the drag signal is held within the error range from the predetermined position and the time when the drag signal is held exceeds the predetermined threshold time, the signal processing section 22 can recognize the signal of the section as the hold signal.

For example, when the threshold time is set to 3 seconds, if the input position of the drag signal is kept constant for 3 seconds or more, the signal processing unit 22 can recognize the interval of 3 seconds as the holding signal. On the other hand, when the threshold time is set to 3 seconds, if the input position of the drag signal is kept constant for 5 seconds or longer, the signal processing unit 22 can recognize the 5 second interval as the holding signal.

The drag signal may include one or more hold signals. The signal processing unit 22 can recognize a remaining section of the drag signal excluding the section of the holding signal as a moving signal.

On the other hand, the signal processing unit 22 can recognize the position where the drag signal starts and the position where the drag signal ends.

The photographing path setting unit 23 sets the photographing path of the camera using the moving signal and the holding signal obtained by the signal processing unit 22. [ The photographing path setting unit 230 sets a moving path for moving between the photographing area and the photographing area to be photographed.

For example, the photographing route setting section 23 sets the photographing area based on the holding signal, and sets the moving route based on the moving signal. The photographing route setting unit 23 sets the position of the photographing area based on the input position of the holding signal, and sets the moving route based on the speed and the route of the moving signal.

The photographing route setting unit 23 sets the time for photographing the photographing area based on the time (hereinafter referred to as the holding time) for which the holding signal is held, and the time for which the photographing area is continuously photographed in detail .

The photographing path setting unit 23 can set the photographing time in proportion to the holding time. The method of matching the retention time and the photographing time may be based on a predetermined relational expression or may be performed by a previously input lookup table (LOT), but the present invention is not limited thereto.

The user can input the average photographing time of each photographing area before and after the input of the drag signal, and the average moving speed of the moving route. The set values such as the input average moving speed and the average photographing time are stored in the system and can be used in setting the photographing route of the photographing route setting unit 23. [

For example, the photographing route setting section 23 may set the photographing time in a plurality of photographing areas in proportion to the holding time of each holding signal, and the average photographing time of each photographing area may be a predetermined value. In addition, the photographing route setting unit 23 can set the moving speed in a plurality of moving paths in proportion to the moving speed of each moving signal, while the average moving time can be a predetermined value.

The shooting time may be set to a previously stored time value regardless of the holding time. For example, in a case where the photographing route setting section 23 is set so as to photograph the entire photographing region for the first time, the photographing route setting section 23 can set the photographing region for the first time to be photographed.

The photographing route of the camera may include a plurality of photographing areas and a route for moving the respective photographing areas, and the photographing route setting unit 23 sets the positions and travel routes of the plurality of photographing areas in response to the drag signal. For example, the photographing route setting section 23 sets the photographing time of each photographing area and the moving speed of the moving route corresponding to the drag signal.

The photographing route setting unit 23 can further set the position where the drag signal is started and the position where the drag signal is terminated to the photographing area. Accordingly, at least three shooting regions can be set corresponding to the position where the drag signal starts, the position where the drag signal is terminated, and the position where the hold signal is held.

The photographing route setting unit 23 transmits the set photographing route to the output unit 24. [ The photographing route setting unit 23 may store the set photographing route in a separate storage device or transmit the information to the display device 31 to display the information of the photographing route, for example, the location of the photographing area, the photographing time, .

The output unit 24 generates a control signal corresponding to the photographing path so that the camera can photograph the image according to the photographing path set by the photographing path setting unit 20, and outputs the control signal to the camera. The control signal output by the output unit 24 is transmitted to the camera via a wired or wireless network and may be stored in a storage device. The control signal may be a panning, tilting operation of the camera, or a zooming operation of the lens as a function of time.

3 is a flowchart of a camera shooting route control method according to an embodiment. Referring to FIG. 3, in step 31, the signal obtaining unit 21 obtains a continuous drag signal for setting a shooting route. The photographing path includes a moving path between the photographing area and the photographing area.

In step 32, the signal processing unit 22 acquires a moving signal and a holding signal from the drag signal obtained in step 31. The holding signal is a signal that the input position of the drag signal is set in advance within an error range from a predetermined position And the moving signal is a signal of a remaining section of the drag signal excluding the section of the holding signal.

In step 33, the shooting route setting unit 23 sets the shooting area based on the holding signal obtained in step 32, and sets the moving route based on the moving signal. For example, in step 33, the photographing route setting unit 23 sets the photographing area on the basis of the input position of the holding signal, sets the moving route based on the speed and route of the moving signal, The time for photographing the photographing range is set based on the time when the signal is held.

FIG. 4 shows an example of a drag signal and a shooting path set corresponding to the drag signal according to an embodiment. Referring to FIG. 4, a background 4 photographable using a camera included in the surveillance system is shown. When the background 4 is displayed on the display device, the user inputs a desired photographing route as a drag signal on the background 4 by using a mouse or a touch pad.

4, the input of the drag signal begins at the first position 41, passes through the second position 42, and ends at the third position 43. [ The drag signal moves from the first position 41 to the second position 42 along the first path 51 and from the second position 42 to the third position 43 along the second path 52 Move. The drag signal may remain in the second position 42 for a predetermined time.

4, in order to input a drag signal, the user clicks the first position 41 with respect to the screen on which the background 4 is displayed, and then, while keeping the clicked state, The user may move to the position 42 and stay in the second position 42 for a predetermined time and then move to the third position 43 along the second path 52 to end the click state.

In the above example, a mouse click is described as a method of inputting a drag signal, but the present invention is not limited thereto. For example, the click in the above example may be replaced with a touch of the touch pad.

When a drag signal is input by the touch pad, the user presses the first position 41 with respect to the background 4 displayed on the touch pad, and then moves along the first path 51 to the second position The user moves to the second position 42 and moves to the third position 43 along the second path 52 after finishing the second position 42 for a predetermined time, And terminates.

The signal processing unit 22 recognizes a section of the drag signal staying at the second position 42 for a predetermined time as a holding signal. The signal processing unit 22 recognizes a section of the drag signal moving along the paths 51 and 52 as a movement signal.

Next, the photographing route setting section 23 sets the second position 42 corresponding to the holding signal as the photographing area. The photographing path setting unit 23 can further set the first position 41 where the drag signal starts and the third position 43 where the drag signal ends, to the photographing area.

The photographing path setting unit 23 sets the camera moving path between the photographing areas 41, 42, and 43 based on the paths 51 and 52 on which the moving signal has moved. For example, it is possible to set the movement path of the camera in correspondence with the paths 51 and 52 as they are. At this time, the moving speed of the drag signal at each position in the path can be reflected in the moving path of the camera as it is.

When the first position 41, the second position 42, and the third position 43 are set as photographing regions, the photographing region can be set so that each position is in the center of the image. However, the present invention is not limited thereto, and the photographing area may be set such that each position is located at the upper left corner, or located at the upper right corner. This can be set in various ways according to the design of this embodiment.

Meanwhile, according to another embodiment of the present invention, a user may input a zooming signal for setting a zoom magnification of a camera lens while inputting a drag signal. The zooming signal may be input using, for example, a wheel button of a mouse, but is not limited thereto.

According to the above embodiment, the signal processing unit 22 acquires a moving signal, a holding signal, and a zooming signal from the drag signal. The photographing route setting section 23 sets the zoom magnification of the camera lens to be adjusted in accordance with the zooming signal. For example, it is set to adjust the zoom magnification of the camera lens at the position where the zooming signal is inputted on the photographing route. The output unit 24 outputs a control signal of the camera corresponding to the set shooting route and the zooming information.

According to the embodiments described above, the shooting route of the camera can be intuitively controlled by inputting the drag signal on the background displayed on the display device and setting the shooting route of the camera. According to the above-described embodiments, it is not necessary to input the coordinates of the photographing area as numerical values, so that the photographing route of the camera can be easily controlled. In addition, when a direct numerical value is inputted, it is possible to intuitively and easily generate a complicated movement path or the like which is difficult to generate substantially by using a drag signal.

According to the embodiments described above, it is very simple and intuitive that the time of staying in the shooting route and the speed of moving along the moving route can be represented by a single drag signal.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, the true scope of technical protection of the above-described embodiments should be determined by the technical idea of the appended claims.

10: Camera
20: Control device
30: input / output device
21: Signal acquisition unit
22: Signal processor
23: photographing route setting section
24: Output section
4: Background
41: first region
42: second region
43: third region
51: First path
52: Second path

Claims (3)

A method of controlling a shooting path of a camera,
Wherein the shooting path includes a moving path between the shooting area and the shooting area,
Obtaining a continuous drag signal for setting the shooting route;
Obtaining a movement signal and a sustain signal from the drag signal; And
Setting the photographing area based on the maintenance signal and setting the movement route based on the movement signal,
Wherein the holding signal is a signal of a section in which an input position of the drag signal is maintained within a tolerance range beyond a predetermined threshold time from a predetermined position and the moving signal is a signal in which the input position of the drag signal is not kept constant, A signal of a remaining section excluding the section of the holding signal,
A method of controlling a camera shooting route. The method according to claim 1,
Wherein the setting step comprises:
Sets the shooting area based on the input position of the holding signal, sets the moving path based on the speed and the path of the moving signal, and photographs the shooting area based on the time when the holding signal is held To set the time,
A method of controlling a camera shooting route. An apparatus for controlling a shooting path of a camera,
Wherein the shooting path includes a moving path between the shooting area and the shooting area,
A signal acquiring unit acquiring a continuous drag signal for setting the shooting route;
A signal processing unit for obtaining a moving signal and a holding signal from the drag signal; And
And a photographing route setting unit for setting the photographing area based on the maintenance signal and setting the movement route based on the movement signal,
Wherein the holding signal is a signal of a section in which an input position of the drag signal is maintained within a tolerance range beyond a predetermined threshold time from a predetermined position and the moving signal is a signal in which the input position of the drag signal is not kept constant, A signal of a remaining section excluding the section of the holding signal,
Camera shooting route control device.

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