KR20140121713A - System for monitoring image and operating method thereof - Google Patents

Abstract

The present invention relates to an image monitoring system and a method for operating the same. The image monitoring system is capable of efficiently monitoring an image in certain space such as a ski resort. The image monitoring system comprises: a camera to set an identifier to a person appeared while a slope is photographed, and to generate and to transmit an event and an alarm if a motion of the identifier is not detected for a certain time while the motion of the identifier is tracked; and a first image receiving device to display an identifier image to which the event and the alarm are generated at the same time displaying a slope-photographed image that is photographed by the camera.

Description

Technical Field [0001] The present invention relates to a video surveillance system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video surveillance system and an operation method thereof capable of efficiently performing video surveillance in a specific space such as a ski resort.

In general, in the ski slopes, ski patrols are placed in the middle of each slope, and they use a walkie-talkie to check the slope situation, identify injured people, or warn people sitting on the slope. However, in such a situation, it is difficult to grasp the entire situation of the slope, and it takes a long time to recognize the problem and to cope with it.

In addition, there is a system that attaches GPS to skiers and manages them. Such a system can grasp the position of skiers, but it is inefficient because they have to rent GPS expenses and skiers.

Korean Patent Publication No. 2012-0075316

SUMMARY OF THE INVENTION It is an object of the present invention to provide a video surveillance system capable of providing a warning to a skier who sees a skier falling down while observing a wide ski slope, Method.

According to an aspect of the present invention, there is provided a video surveillance system including an identifier set for a person appearing during a slope photographing operation, a motion of the identifier being detected for a predetermined time during motion tracking of the identifier, A camera for generating and transmitting an event and an alarm; And a first image receiving device for displaying a slope image photographed by the camera and displaying an identifier image in which the event and the alarm are generated.

The present invention is further characterized by a second image receiving apparatus which is portable and displays an image of a slope photographed by the camera and an identifier image in which the event and the alarm are generated.

In the present invention, the camera is characterized in that the photographing area is divided into a predetermined number of blocks.

In the present invention, the image receiving apparatus enlarges and displays the identifier image around the divided block.

In the present invention, the camera generates a first event indicating that the identifier is a first risk group when the motion of the identifier is not detected for a first predetermined time, and if the motion of the identifier is not detected for a second predetermined time And generates a second event indicating that the identifier is a second risk group if the identifier is out of the slope rail, and generates a third event indicating that the identifier is a third risk group if the identifier leaves the slope guardrail. The color of the identifier is set differently.

According to an aspect of the present invention, there is provided a method of operating a video surveillance system including a video surveillance system including a camera for capturing an image and an image receiving apparatus for receiving an image captured by the camera, The method includes dividing a slope photographing area into a plurality of blocks and setting an identifier for a person appearing during the slope photographing; Generating and transmitting an event and an alarm when the motion of the identifier is not detected for a predetermined time during motion tracking of the identifier; Wherein the image receiving apparatus displays a slope photographing image photographed from the camera; And enlarging and displaying the identifier image around the divided block when an event and an alarm are received from the camera.

As described above, according to the present invention, a surveillance camera can be installed on a ski slope so that the situation of a ski slope can be grasped at a glance, which is easy to manage. In addition, it is possible to perform effective slope management such as warning skiers who sit down and take a rest, by checking for fallen skiers and coping promptly.

1 is a block diagram showing a configuration of a video surveillance system according to an embodiment of the present invention.
2 is a view showing a slope of a ski slope taken by a camera in FIG.
FIG. 3 is a view showing an image analysis and processing of a photographed slope in FIG.
FIG. 4 is a view showing a user terminal on which slope images photographed in FIG. 1 are displayed.
5 is a flowchart illustrating an operation method of a video surveillance system according to an exemplary embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The present invention may be represented by functional block configurations and various processing steps. These functional blocks may be implemented in a wide variety of hardware and / or software configurations that perform particular functions. For example, the present invention may include integrated circuit configurations, such as memory, processing, logic, look-up tables, etc., that may perform various functions by control of one or more microprocessors or other control devices Can be adopted. Similar to the components of the present invention that may be implemented with software programming or software components, the present invention may be implemented as a combination of C, C ++, and C ++, including various algorithms implemented with data structures, processes, routines, , Java (Java), assembler, and the like. Functional aspects may be implemented with algorithms running on one or more processors. Further, the present invention can employ conventional techniques for electronic environment setting, signal processing, and / or data processing. Terms such as mechanisms, elements, means, and configurations are widely used and are not limited to mechanical and physical configurations. The term may include the meaning of a series of routines of software in conjunction with a processor or the like.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, do.

1 is a block diagram showing a configuration of a video surveillance system according to an embodiment of the present invention.

Referring to FIG. 1, the video surveillance system includes a camera 100, a network 200, a display unit 300, and a user terminal 400.

The camera 100 is installed so as to take a picture of a ski slope. The camera 100 may be a speed dome camera disposed at a fixed position in a specific space where the entire slope can be photographed. The camera 100 may be a PTZ camera having a pan / tilt / zoom function. The camera 100 generates a live image which is an image of a specific place obtained by the PTZ function. The camera 100 continuously captures an image while rotating the body at a fixed position by panning from 0 to 360 degrees and tilting from -5 to 185 degrees and displays the image on the display 200 by the network 200 or wired communication or wireless communication, To the user terminal (300) or the user terminal (400). Here, the display unit 300 may be a PC monitor or the like as a display unit provided in an integrated control center (not shown) for integrally controlling the camera 100. Also, the user terminal 400 may be a portable device including a smart phone, a tablet PC, and the like.

The camera 100 sets an identifier in a skier appearing during slope photographing and generates an event and an alarm when the motion of the identifier is not detected for a predetermined time during motion tracking of the identifier. 2 shows a ski slope taken by the camera 100. As shown in FIG. The camera 100 may include a photographing unit 110, a setting unit 120, an image analyzing unit 130, and an event and alarm generating unit 140.

The photographing unit 110 photographs an arbitrary slope in the ski slope, and an optical signal transmitted through a lens (not shown) arrives at the light receiving surface of the image pickup device to form an image of the subject. The imaging device may be a charge coupled device (CCD), a complementary metal oxide semiconductor image sensor (CIS), or a high-speed image sensor, which converts an optical signal into an electric signal.

The setting unit 120 sets an identifier to a skier appearing during slope photographing, and divides the slope photographing area into a plurality of blocks. FIG. 2 shows an example in which an identifier is set in a skier appearing on a slope. For example, three skiers appear on a slope, and an identifier is set for each skier. The identifier can be set as follows. The setting unit 120 can release the identifier setting when the skier finishes running to the bottom of the slope. FIG. 3D shows an example in which the slope photographing region is divided into a plurality of blocks, for example, 16 blocks. Thus, by dividing the slope photographing region into a plurality of blocks, it is possible to grasp the identifier, that is, the exact position of the skier. In addition, the block partition can be displayed / unsetted as an option.

The image analyzer 130 corrects the distortion of the photographed slope image, tracks the motion of the set identifier, and processes the signal as a displayable signal. In FIG. 3A, a slope image taken by the photographing unit 110 is shown distorted, and the image analyzing unit 130 corrects a slope image distorted in a trapezoidal shape as shown in FIG. 3A, as shown in FIG. 3B. Also, the image analysis unit 130 tracks the movement in the shooting region with respect to the set identifier. The image analyzer 130 may perform a cross correlation, an auto correlation, a sum of absolute difference (SAD), or a block matching algorithm at the time of motion tracking of the set identifier, And therefore, a detailed description thereof will be omitted.

The image analyzer 130 reduces the noise of the slope image data and performs a gamma correction, a color filter array interpolation, a color matrix, a color correction, Image enhancement such as color enhancement can be performed. The image analysis unit 130 can also functionally perform sharpness processing, color processing, blur processing, edge emphasis processing, image recognition processing, image effect processing, and the like. The face recognizing process, the scene recognizing process, and the like can be performed by the image recognizing process. For example, brightness level adjustment, color correction, contrast adjustment, contour enhancement adjustment, screen division processing, character image generation, and image synthesis processing can be performed.

The event and alarm generating unit 140 receives an identifier motion tracking signal of the image analyzing unit 130 and generates an event and an alarm when the motion of the identifier is not detected for a predetermined period of time and outputs the event and the alarm to the display unit 300 and the user terminal 400).

The event and alarm generating unit 140 generates a first and a second event and alarm by measuring a time when the movement of the identifier is not sensed, and generates a third event and an alarm when the identifier leaves the slope rail. The detailed description of the event and alarm generating unit 140 will be described with reference to FIG. 3B shows a slope image in which the distortion is corrected, and a first identifier 151, a second identifier 152 and a third identifier 153 are displayed.

The event and alarm generation unit 140 receives the identifier motion tracking signal of the image analysis unit 130 and generates a first event and an alarm when the motion of the identifier is not detected for a first predetermined time, , And sets the identifier as the first flotation risk group. For example, if the first identifier 151 shown in FIG. 3B is not motion-detected for a first predetermined time, the event and alarm generator 140 sets the first identifier 151 as the first in-flight risk group , A mask is generated for the first identifier 151 at the current position of the first identifier 151, and the color of the identifier is displayed in green, for example, different from other identifiers.

The event and alarm generation unit 140 receives the identifier motion tracking signal of the image analysis unit 130 and generates a second event and an alarm when the motion of the identifier is not detected for a second predetermined time period, , And sets the corresponding identifier as the second risk of injury. For example, if the third identifier 153 shown in FIG. 3B is not detected for a second predetermined time, the event and alarm generator 140 sets the third identifier 153 as the second risk of injury A mask is generated for the third identifier 153 at the current position of the third identifier 153, and the color of the identifier is displayed in red, for example, different from other identifiers.

The event and alarm generating unit 140 receives the identifier motion tracking signal of the image analyzing unit 130, generates a third event and an alarm when the identifier leaves the slope railing, sets the identifier as the third in- do. For example, if the fourth identifier 154 leaves the slope rail during a slope run, as shown in FIG. 3C, at the current location of the fourth identifier 154, the fourth identifier 154 generates a mask, For example, yellow, unlike the other identifiers.

The display unit 300 and the user terminal 400 display an image photographed by the camera 100 and receive an event and an alarm occurrence from the event and alarm generator 140 in particular and enlarge and display the corresponding identifier immediately , It can be determined whether the identifier is injured or resting. In particular, upon receipt of an event and an alarm signal, the ski patrol having the user terminal 400 enlarges and displays the corresponding image to check the status of the identifier, moves to the position of the corresponding identifier to transfer the injured identifier, You can give a warning to the identifier.

FIG. 3D shows an example in which the state of the first identifier 151 is enlarged and displayed in a state where the slope photographing region is divided into a plurality of blocks. The current first identifier 151 is located in the 13th block among the divided blocks. When the manager touches or selects the block, 13 blocks are enlarged as shown in FIG. 3E. As shown in FIG. 3F, the enlarged 13 block is divided into 16 sub-blocks. The first identifier 151 is located in the middle of 3, 4, 7, and 8 blocks of 16 sub-blocks. When the manager again touches or selects the identifier, the identifier image is enlarged and displayed as shown in FIG. 3F, and it is possible to confirm whether the state of the skier is floating or resting.

FIG. 4 shows an identifier enlargement display displayed on the user terminal 400 included in the ski patrol or the like. Referring to FIG. 4A, a slope photographing region divided into a plurality of blocks displayed on the user terminal 400 is shown. FIG. 4B shows a slope photographing region divided into a plurality of blocks by touching a first identifier 151, Or an enlarged example is shown. Hereinafter, the state check of the identifier is the same as that described above, and thus will not be described.

In this way, the camera 100 can be mounted and mounted on the slope of the ski slope, and the situation of the slope of the slope can be grasped at a glance. Also, the slope management can be performed efficiently by checking the slippery skier, alerting the skier .

5 is a flowchart illustrating an operation method of a video surveillance system according to an exemplary embodiment of the present invention. In the following description, the description of the parts overlapping with the description of FIG. 1 to FIG. 4 will be omitted.

Referring to FIG. 5, the camera 100 installed in a specific space in which the entire slope can be photographed, sets an identifier to a skier appearing during slope photographing, and divides and sets the slope photographing area into a plurality of blocks (S100) do. The camera 100 can set an identifier in the order in which the skier appears in the shooting area and can release the identifier setting when the skier finishes running to the bottom of the slope. In addition, the camera 100 can divide the slope photographing area into a plurality of blocks, for example, 16 blocks to identify the exact position of the skier, and the block partition area can be displayed / not set as an option.

When the setting of the identifier is completed in the shooting region block division and the skier, the camera 100 performs the step of tracking the movement of the set identifier (S110). The camera 100 may perform a cross correlation, an auto correlation, a sum of absolute difference (SAD), or a block matching algorithm at the time of motion tracking of a set identifier, The detailed description will be omitted.

The camera 100 performs step S120 of determining whether movement of the identifier is not detected for a first predetermined time, for example, one minute during the movement tracking of the identifier, and if the movement of the identifier is not detected for the first predetermined time , It is determined that the corresponding identifier is the first risk group, and the first event and the alarm are generated (S130). The camera 100 generates a mask for the identifier determined as the first risk group, and displays the color of the identifier differently from other identifiers, for example, in green.

The camera 100 performs step S140 of determining whether movement of the identifier is not detected for a second predetermined time, for example, three minutes during the movement tracking of the identifier, and if the movement of the identifier is not detected for a second predetermined time , It is determined that the identifier is a second risk group, and a second event and an alarm are generated (S150). The camera 100 generates a mask for the identifier determined to be the second risk group, and displays the color of the identifier differently from other identifiers, for example, in red.

The camera 100 performs step S160 of determining whether the identifier has deviated from the slope rail during the motion tracking of the identifier. If the identifier is determined to have deviated from the slope rail, the camera 100 determines that the identifier is the third dangerous group, An alarm generating step S170 is performed. The camera 100 generates a mask for the identifier determined as the third dangerous group, and displays the color of the identifier differently from other identifiers, for example, in yellow.

The first to third events and the alarm generation signal are transmitted to the display unit 300 and the user terminal 400 respectively and the display unit 300 and the user terminal 400 display the photographed and transmitted slope image, At the same time, when an event and an alarm are received, enlargement display of the identifier image around the divided block is performed (step 180). When an event and an alarm signal are received in a state where the slope photographing region is divided into a plurality of blocks, when a block of the current identifier is touched or selected, the corresponding block is enlarged and displayed, and the enlarged display region is divided into a plurality of subblocks . When an identifier at an arbitrary position in this sub-block is touched and selected again, the identifier image is enlarged and displayed. This makes it possible to judge whether the identifier is injured or resting. In particular, upon receipt of an event and an alarm signal, the ski patrol having the user terminal 400 enlarges and displays the corresponding image to check the status of the identifier, moves to the position of the corresponding identifier to transfer the injured identifier, You can give a warning to the identifier.

Thereafter, the camera 100 performs step S190 of releasing the identifier setting when the identifier completes the sliding to the lowermost end of the slope.

Meanwhile, the present invention can be embodied in computer readable code on a computer readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

Examples of the computer-readable recording medium include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device and the like, and also a carrier wave (for example, transmission via the Internet) . In addition, the computer-readable recording medium may be distributed over network-connected computer systems so that computer readable codes can be stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for implementing the present invention can be easily deduced by programmers skilled in the art to which the present invention belongs.

The present invention has been described above with reference to preferred embodiments. It will be understood by those skilled in the art that the present invention may be embodied in various other forms without departing from the spirit or essential characteristics thereof. Therefore, the above-described embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof should be construed as being included in the present invention.

100: camera 110: photographing unit
120: setting unit 130: image analysis unit
140: Event and alarm generating unit 200: Network
300: display unit 400:

Claims (6)

A camera which sets an identifier to a person appearing during a slope photographing and generates an event and an alarm when the motion of the identifier is not detected for a predetermined time during motion tracking of the identifier and transmits the event; And
And a first image receiving apparatus for displaying a slope image photographed by the camera and displaying an identifier image in which the event and the alarm are generated. The method according to claim 1,
And a second image receiving device for displaying an image of a slope photographed by the camera and displaying an identifier image in which the event and the alarm are generated. The camera according to claim 2,
And the image sensing unit divides the image sensing area into a predetermined number of blocks. The apparatus of claim 3,
And displays the identifier image enlarged on the basis of the divided blocks. The camera according to claim 1,
If the movement of the identifier is not detected during the first predetermined time, generates a first event indicating that the identifier is the first danger group, and if the movement of the identifier is not detected during the second predetermined time, And generates a third event indicating that the third event is a third dangerous event when the identifier has deviated from the slope railing, wherein the color of the identifier is set differently according to the type of the event Video surveillance system. A method of operating a video surveillance system including a camera for capturing an image and an image receiving device for receiving an image captured by the camera,
Dividing the slope photographing area into a plurality of blocks and setting an identifier for a person appearing during the slope photographing;
Generating and transmitting an event and an alarm when the motion of the identifier is not detected for a predetermined time during motion tracking of the identifier;
Wherein the image receiving apparatus displays a slope photographing image photographed from the camera; And
Wherein the image receiving apparatus enlarges and displays the identifier image around the divided block when an event and an alarm are received from the camera.

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