KR101670247B1 - System for magnifying-moving object using one click of cctv real-time image and method therefor - Google Patents

Abstract

The present invention relates to an object extension movement system and a method using one click selection of a CCTV real-time image. The object extension movement method comprises: (a) step of enabling a control unit to output an image received from a camera in real time; (b) step of enabling the control unit to determine whether or not the one click is received on the outputted image; (c) step of enabling the control unit to detect a current PTZ position of the camera corresponding to the one click in a case of receiving the one click according to a determination result of the (b) step; (d) step of enabling the control unit to calculate the PTZ position to be extended and moved to a position corresponding to the one click from a PTZ position of an initial camera; and (e) step of enabling the control unit to extend and moves the PTZ of the camera corresponding to the calculated position. The present invention is provided to facilitate one click movement in a temporary PTZ position without setting a coordinate for a specific time point according to kinds of an object, which is selected by a user, by using a range of PTZ values according to the kinds of the camera, a size of a n image sensor, a focal distance, an angle view of lens, and height information of a pole in which the camera is installed, thereby remarkably reducing setting time for one click extension movement by deleting a setting step for each coordinate for comprising a look-up table in each specific time point.

Description

TECHNICAL FIELD [0001] The present invention relates to a system and method for enlarging an object using a one-click selection of a CCTV real-

The present invention relates to a system and method for expanding an object using one-click selection of a CCTV real-time image, and more particularly, to a system and method for zooming an object using a CCTV camera, a pan tilt driver and a box-shaped CCTV camera coupled with an electric zoom lens, A technology that provides a zoom-in to an identifiable position according to the object type designated by the user by clicking on a desired point on the real-time image of a CCTV camera capable of adjusting / TILT / ZOOM (hereinafter referred to as PTZ) .

That is, the present invention relates to a technique capable of one-click movement at any position desired by the user irrespective of the current PTZ position of the CCTV camera, unlike the one-click movement allowed only at a predetermined position.

A typical camera control surveillance system has many application areas, and camera devices are used in various ways in order to realize this. The simplest method is a technique of acquiring and analyzing images of a predetermined area using one or a plurality of fixed camera devices and monitoring the acquired images.

Another technique is to acquire, analyze, and monitor images in a desired area by manually controlling the camera device at a remote site using a camera device capable of PTZ control.

Alternatively, a fixed camera for detecting a certain area and a PTZ camera for enlarging a predetermined point of the detected area may be used. When a fixed photograph is required for enlarged photographing, a PTZ camera is controlled, There is a technique of analyzing and detecting an image in a sequence in which only a desired region is enlarged and photographed.

Thus, a surveillance system using only one fixed camera is convenient for monitoring a large area at a time, but does not provide a face size and resolution sufficient for accurate recognition.

Therefore, a PTZ camera may be used for face size and resolution sufficient for accurate recognition.

A camera as described above is a network camera having a PTZ function. In general, coordinates of an area to be photographed and enlarged are set in advance, and an image of predetermined coordinates is photographed according to a user's input.

Alternatively, the PTZ camera can pan, tilt, or zoom according to the user's direct control input.

FIG. 1 is a diagram showing coordinate settings at the time of one-click enlargement movement based on a conventional camera. As shown in FIG. 1, the conventional one-click enlargement / movement method sets a PTZ position of a CCTV camera to a desired time point, and sets a coordinate of a plurality of points within a set specific time point, After generating the PTZ position lookup table, it is enlarged and moved to the selected one-click position through interpolation between the coordinates of the lookup table.

Also, in order to re-click one point, it operates by repeating all the coordinate settings for a plurality of points at each point in time.

Therefore, since the one-click enlarged movement is operated only in the PTZ position at a specific point of time selected by the user, there is a problem in that the one-click enlarged movement can not be performed at a certain point of time when the user moved in real time.

In addition, when the camera PAN origin is changed due to repair or replacement of the camera, it is necessary to perform the lookup table regeneration or correction operation for all the preset points, and it takes a considerable time to generate the corresponding lookup table .

Patent No. 10-1076610 Patent No. 10-1087492

SUMMARY OF THE INVENTION It is an object of the present invention to provide an image processing apparatus and method capable of detecting coordinates of a specific point in time according to a type of an object selected by a user using only a PTZ value range, an image sensor size and a focal distance, It is possible to perform one-click movement in an arbitrary PTZ position without setting, thereby eliminating the setting step for each coordinate for the lookup table configuration at each specific time point, thereby reducing the setting time for one-click enlargement movement remarkably.

It is another object of the present invention to provide a method and apparatus for continuously expanding a one-click operation without any additional setting or correction even after a repair operation in which a camera PAN origin is changed by omitting a lookup table creation process at a specific point in time.

According to an aspect of the present invention, there is provided a system for enlarging and enlarging an object using a one-click selection of a CCTV real-time image, the method comprising the steps of: And a controller for detecting the current PTZ position of the camera and calculating the PTZ position to be enlarged and moved from the PTZ position of the first camera to the position corresponding to the one click and moving the PTZ of the camera to correspond to the calculated position.

The method of enlarging and moving an object using the one-click selection of the CCTV real-time image of the present invention based on the system described above includes the steps of: (a) outputting an image received from the camera in real time; (B) determining whether the control unit receives a one-click on an image being output; (c) detecting, by the control unit, a current PTZ position of the corresponding camera corresponding to the one-click if the one-click is input as a result of the determination in step (b); (D) calculating a PTZ position to be enlarged and moved from a PTZ position of the first camera to a position corresponding to a one-click from the first camera; And (e) enlarging and moving the PTZ of the camera so as to correspond to the position calculated by the control unit.

According to the present invention, only the PTZ value range, the image sensor size and the focal length, the angle of view of the lens, and the height information of the pawl mounted on the camera are used, It is possible to make one-click movements at an arbitrary PTZ position without setting coordinates for each point of time, thereby eliminating the setting step for each coordinate for the lookup table configuration at each specific time point, thereby significantly reducing the setting time for one-click enlargement movement.

According to the present invention, owing to the omission of the lookup table creation process at a specific point in time, there is an effect that the one-click enlarged movement can be continuously performed without any additional setting or correction even after repair work in which the camera PAN origin is changed.

That is, according to the present invention, an object moving in real time can be continuously tracked through one-click, and application of one-click enlargement movement according to an object type desired by a user in addition to a future object is enabled.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram showing coordinate settings at the time of one-click enlargement and movement based on a conventional camera. FIG.
2 is a block diagram illustrating an object enlargement moving system using one-click selection of a CCTV real-time image according to the present invention.
3 is a diagram for explaining a formula used in the PTZ position calculation of an object enlargement moving system using one-click selection of a CCTV real-time image according to the present invention.
4 is a view for explaining distance calculation between a camera and an object in an object enlargement moving system using one-click selection of a CCTV real-time image according to the present invention.
FIGS. 5A, 6A, and 7A are views showing an image before the one-click input by the object enlargement moving system using one-click selection of the CCTV real-time image according to the present invention;
FIGS. 5B, 6B and 7B illustrate enlargement of an object enlargement moving system using one-click selection of a CCTV real-time image according to the present invention when the differential values included in the enlargement request signal are Face, Whole Body and Vehicle, respectively An example.
FIG. 8 is a flowchart illustrating a method of enlarging and moving an object using one-click selection of a CCTV real-time image according to the present invention.
FIG. 9 is a flowchart illustrating a detailed process of step S4 of the method for enlarging and moving an object using one-click selection of a CCTV real-time image according to the present invention.
FIG. 10 is a flowchart illustrating a process of moving an object enlargement and movement method using a one-click selection of a CCTV real-time image according to the present invention before step S1; FIG.

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms and words used in the present specification and claims are to be interpreted in accordance with the technical idea of the present invention based on the principle that the inventor can properly define the concept of the term in order to explain his invention in the best way. It should be interpreted in terms of meaning and concept. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

FIG. 2 is a block diagram illustrating an object enlargement / movement system using a one-click selection of a CCTV real-time image according to the present invention, FIG. 3 is a diagram for explaining a formula used in calculating a PTZ position, Fig.

The camera 10 and the control unit 20 according to the present invention are connected to each other through an information communication network, and the control unit 20 can be provided inside or outside the server.

First, the camera 10 includes a rotating camera having a PTZ (PAN / TILT / ZOOM) value or a box camera coupled with a PTZ driver, and transmits the captured real time image to the control unit 20.

At this time, the camera 10 is provided so as to correspond to the initial setting values of the moving range of the PTZ, the image sensor size, the focal length range, the lens view angle range, and the height of the mounted pole, And stored in a database or a configuration file connected to the server.

The control unit 20 outputs the image received from the camera 10 through the output unit 30 in real time and receives a click signal (hereinafter referred to as one click) Detects the current PTZ position of the camera 10, calculates the PTZ position to be enlarged and moved from the PTZ position of the first camera 10 to the position corresponding to the one-click, moves the PTZ of the camera 10 to correspond to the calculated position .

Here, the one-click is a signal that is clicked through an input means (e.g., a mouse) with respect to the position of an object to be centered and enlarged on an output image, and the object is a person or object included in the output image It is desirable to understand.

3 and 4, the control unit 20 of the object enlargement moving system using the one-click selection of the CCTV real-time image according to the present invention calculates the PTZ position for enlarging and moving the camera 10, It is as follows.

)을 계산한다.The control unit 20 calculates the focal length L of the camera lens through Equation 2 and calculates the camera focal length L and the image sensor diagonal length L using Equation 3 W)

).

[Equation 1]

&Quot; (2) "

&Quot; (3) "

Then, the position corresponding to the one click inputted by the control unit 20 is calculated based on the angle of view as to whether the position corresponding to the one-click on the current screen corresponds to a true angle, And aligns the corresponding objects with the center.

At this time, the angle calculation for center alignment to the position corresponding to the one-click is calculated based on the ratio of the size of the viewer output to the output unit 30 and the position of each position on the one-click viewer.

Next, the controller 20 derives the distance d between the camera and the object through Equation (4), and associates the object aligned at the center of the viewer output to the output unit 30 with the input enlargement request signal .

&Quot; (4) "

는 카메라의 현재 TILT 각도이며, d는 카메라와 객체간의 거리이다.In Equation (4), h is the height of the pole on which the first camera is mounted,

Is the current TILT angle of the camera, and d is the distance between the camera and the object.

Although not shown in the present invention, when the distance d between the camera and the object is derived, a slight difference in distance may occur depending on the inclination angle of the background such as the ground on which the object is located. Therefore, Of course it is possible.

In this case, the enlargement request signal is a signal for increasing the ZOOM-IN degree depending on the type of the object previously designated by the user, and the differential object is a face (size capable of recognizing the face of a person), a Whole Body Possible size) or Vehicle (vehicle identifiable size).

5A, 6A, and 7A are views showing an image before the one-click receiving by the object enlargement moving system using one-click selection of the CCTV real-time image according to the present invention, and FIGS. 5B, 6B, And 7b are enlarged views when the differential values included in the enlargement request signal are Face, Whole-Body, and Vehicle, respectively.

In summary, the object enlargement moving system using the one-click selection of the CCTV real-time image according to the present invention is based on the initial setting value of the camera 10, It is possible to move without setting. In this case, the angle of view is calculated based on the initial setting value and the current ZOOM value, and the center is aligned. The height of the pole and the current TILT angle are used to determine the object Differential ZOOM-IN for each selected object type allows the object to be visually identified.

Hereinafter, a method for enlarging and moving an object using one-click selection of a CCTV real-time image according to the present invention will be described with reference to FIG.

First, the control unit 20 outputs the image transmitted from the camera 10 through the output unit 30 in real time (S1).

Then, the control unit 20 determines whether a one-click is input on the image being output (S2).

As a result of the determination in step S2, when receiving the one-click, the controller 20 detects the current PTZ position of the camera 10 corresponding to the one-click (S3).

Subsequently, the controller 20 calculates the PTZ position to be enlarged and moved from the PTZ position of the first camera 10 to the position corresponding to the one-click (S4).

Then, the PTZ of the camera 10 is enlarged and moved so as to correspond to the position calculated by the control unit 20 (S5).

Hereinafter, with reference to FIG. 9, the details of step S4 of the method of enlarging and moving an object using the one-click selection of the CCTV real-time image according to the present invention will be described below.

After step S3, the control unit 20 calculates the focal length L of the camera lens through Equation (2) (S4-1).

)을 계산한다(S4-2).Next, the controller 20 calculates the angle of view (L) using the camera focal length L and the image sensor diagonal length W through Equation (3)

(S4-2).

Subsequently, the controller 20 calculates whether the position corresponding to the one-click position aligns with the center of the image corresponding to the one-click on the current screen with respect to the angle of view.

Here, the controller 20 derives the distance d between the camera and the object through Equation (4) (S4-4).

Then, the control unit 20 enlarges the object aligned at the center of the viewer output to the output unit 30 to correspond to the received enlargement request signal (S4-5).

In addition, [Expression 1] to [Expression 4] for PTZ position calculation for enlarging and moving the camera to the position corresponding to the one-click are as follows.

[Equation 1]

&Quot; (2) "

&Quot; (3) "

&Quot; (4) "

는 카메라의 현재 TILT 각도이며, d는 카메라와 객체간의 거리이다.
In Equation (4), h is the height of the pole on which the first camera is mounted,

Is the current TILT angle of the camera, and d is the distance between the camera and the object.

Hereinafter, referring to FIG. 10, the process of moving the object enlargement moving method using the one-click selection of the CCTV real-time image according to the present invention will be described.

Before step S1, the control unit 20 stores and manages initial settings for the PTZ movement range, the image sensor size, the focal length range, the lens view angle range, and the height of the mounted pole of the camera 10, The procedure is executed in step S1 (S6).

As described above, according to the present invention, the process of generating the lookup table at a specific point in time is omitted, and the PTZ position calculation for enlarging and moving the camera to the position corresponding to the one-click is performed. It is possible to use the one-click enlarged movement continuously without any additional setting or correction.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. And all such modifications and changes as fall within the scope of the present invention are therefore to be regarded as being within the scope of the present invention.

S: Object enlargement moving system using one-click selection of CCTV real-time video
10: camera 20:
30: Output section

Claims (8)

In an object enlargement moving system of CCTV real-time video,
The image transmitted from the camera is outputted in real time,
When a one-click is input, the PTZ position of the camera corresponding to the inputted one-click is detected, the PTZ position to be enlarged and moved from the PTZ position of the first camera to the position corresponding to the one-click is calculated, And a control unit for moving the PTZ of the camera so as to move the PTZ of the camera,
The control unit controls the focal length (L) of the camera lens and the image sensor diagonal length (W)

Then, the object corresponding to the one-click on the current screen is centered on the basis of the angle of view, and the height (h) of the pole on which the first camera is mounted and the current TILT angle

And enlarging the object aligned in the center of the viewer to correspond to the received enlargement request signal by using the distance d between the camera and the object derived from the camera and the object. .
The method according to claim 1,
Wherein,
The ZOOM-IN degree is magnified differently according to the type of the designated object,
The difference object is a CCTV real-time image which is characterized in that it includes any one of Face (size capable of recognizing the face of a person), Whole-Body (size of the person's body can be recognized) or Vehicle Object enlargement moving system using one - click selection.
The method according to claim 1,
The camera comprises:
A rotating camera having a PTZ position, or a box camera coupled with a pan / tilt driver.
The method according to claim 1,
Wherein,
And stores and manages initial setting values for a moving range of the PTZ of the camera, an image sensor size, a focal length range, a lens view angle range, and a height of a mounted pole. Enlarged moving system.
The method according to claim 1,
Wherein,
Calculating a PTZ position to be enlarged and moved to a position corresponding to the one-click,
A function of calculating a focal length L with a camera lens through Equation (2);
Using the camera focal length L and the image sensor diagonal length W through Equation 3,

);
Calculating a position corresponding to the inputted one-click according to the angle of view, the position corresponding to the one-click on the current screen is shifted to the center by an actual angle of several degrees;
Centering the objects corresponding to one click on the current screen; And
(D) between the camera and the object through Equation (4), and enlarging the object arranged in the center of the viewer output to the output unit to correspond to the input enlargement request signal Extending Moving System using One - Click Selection of CCTV Real - time Video.
&Quot; (2) "

&Quot; (3) "

&Quot; (4) "

In Equation (4), h is the height of the pole on which the first camera is mounted,

Is the current TILT angle of the camera, and d is the distance between the camera and the object.
A method for enlarging and moving an object of a CCTV real-
(a) outputting, in real time, an image received by the control unit from the camera;
(b) determining whether the control unit receives a one-click on the image being output;
(c) detecting, as a result of the determining in step (b), a current PTZ position of the camera corresponding to the one-click when the one-click is input;
(d) calculating a PTZ position to be enlarged and moved to a position corresponding to a one-click from the PTZ position of the first camera; And
(e) enlarging and moving the PTZ of the camera so as to correspond to the position calculated by the control unit,
The control unit controls the focal length (L) of the camera lens and the image sensor diagonal length (W)

Then, the object corresponding to the one-click on the current screen is centered on the basis of the angle of view, and the height (h) of the pole on which the first camera is mounted and the current TILT angle

) Of the CCTV real-time image is enlarged to correspond to the input enlargement request signal by using the distance d between the camera and the object derived from the CCTV real- .
The method according to claim 6,
The step (d)
(d-1) calculating a focal length (L) with a camera lens through Equation (2);
(d-2) Using the camera focal length L and the image sensor diagonal length W through Equation 3,

≪ / RTI >
(d-3) calculating whether the position corresponding to the one-click of the control unit aligns with the center of the image corresponding to a one-click position on the current screen with respect to the angle of view,
(d-4) deriving the distance d between the camera and the object through the equation (4); And
(d-5) expanding the object aligned at the center of the viewer output to the output unit so as to correspond to the received enlargement request signal. How to move.
&Quot; (2) "

&Quot; (3) "

&Quot; (4) "

In Equation (4), h is the height of the pole on which the first camera is mounted,

Is the current TILT angle of the camera, and d is the distance between the camera and the object.
The method according to claim 6,
Before the step (a)
(f) storing and managing an initial set value of the PTZ movement range, the image sensor size, the focal length range, the lens view angle range, and the height of the mounted pole of the camera, by the control unit A method of magnifying and moving an object using a one - click selection of a real - time image.

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