KR101992662B1 - Gis 3 cctv 3 cctv - Google Patents

Abstract

In the present invention, a three-dimensional CCTV control image is generated by matching a two-dimensional base CCTV image received from a CCTV camera to a three-dimensional terrain generated based on GIS information in real time, thereby providing a user with a time- The present invention relates to a CCTV control system that enables effective CCTV control by maximizing recognition and situation judgment ability.

Description

3D-based CCTV control system through matching of 3D terrain and CCTV image using GIS information {omitted}

The present invention relates to a 3D-based CCTV control system. More particularly, the present invention relates to a 3D-based CCTV control system through matching of a 3D terrain and a CCTV image using GIS information.

The CCTV control system collects images in real time from multiple CCTV cameras installed to monitor specific areas and monitors the collected images through a plurality of users (controller) to generate events for disaster or crime situations in the relevant area Monitoring of the event, and tracking of the event afterwards.

An image transmitted from a CCTV is typically composed of two-dimensional images. The CCTV control system provides a user with images received from a plurality of CCTVs to perform real-time control.

Since the conventional CCTV control system displays a two-dimensional image as it is, the user has a problem that the spatial and temporal recognition ability of the actual three-dimensional space is deteriorated. Especially, when various events occur in the image, there is a limitation in recognizing CCTV images continuously shot and reproduced and making timely decision-making.

In order to solve these problems, recently, a technology for GIS-based CCTV control system using GIS (Geographic Information System) information and CCTV image is being developed.

For example, the location information of the CCTV and the icon corresponding to the corresponding CCTV are displayed on the three-dimensional map and provided to the user, and when the user selects a specific icon, the corresponding CCTV image is displayed. In such a general system, when displaying a plurality of CCTV images, it is difficult to know which CCTV image is received from the CCTV image, and since it displays a two-dimensional CCTV image, It is not able to overcome the limitation due to declining judgment ability. Moreover, it is incomprehensible to cope with urgent situations such as disaster or crime.

Prior Art Document: KR Patent Registration No. 1247460 (published on Mar. 25, 2013)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a three-dimensional CCTV control system capable of performing effective CCTV control by maximizing a user's ability to recognize temporal and spatial situations and a situation.

The present invention also provides a 3D-based CCTV control system capable of extracting a GIS layer and attribute information for an administrative area, a building, and a road from GIS information and generating a 3D terrain without any object modeling based on the extracted GIS layer The purpose is to provide.

In addition, the present invention provides a three-dimensional CCTV control system capable of three-dimensionally matching CCTV images so as to make them close to actual inspection, performing CCTV control intuitively and efficiently, and continuously tracking specific objects It has its purpose.

In order to achieve the above object, a 3D-based CCTV control system through matching of a 3D terrain and a CCTV image using GIS information according to the present invention includes a CCTV image collection unit for collecting CCTV images from at least one CCTV camera in real- ; A GIS information collecting unit for collecting GIS information from a GIS provider; A three-dimensional terrain generation unit for generating a three-dimensional terrain including a three-dimensional object for a road, a building, or a combination thereof based on the GIS information collected by the GIS information collection unit; And a CCTV control image generation unit for generating a three-dimensional CCTV control image by matching the CCTV images collected by the CCTV image collection unit to the 3D terrain generated by the 3D terrain generation unit.

In addition, the 3D terrain generation unit extracts a GIS layer from the GIS information collected by the GIS information collection unit to extract the GIS layer for the administrative zone, the GIS layer for the building and the road, the boundary for each administrative zone, part; A height map extracting unit for extracting a digital elevation model from the GIS information collected by the GIS information collecting unit and extracting a height map having different contrast values according to the terrain height from the extracted digital elevation model; A merging unit merging each GIS layer extracted by the GIS layer extracting unit into a height map extracted by the height map extracting unit and merging each GIS layer according to a predetermined height; And a white box building generating unit for generating a three-dimensional terrain by vertically raising the GIS layer for the building and generating a white box building corresponding to the actual building.

Also, the CCTV control image generating unit detects a three-dimensional object captured by the CCTV camera according to a pan, a tilt, or a combination of the CCTV camera from the three-dimensional terrain generated by the three-dimensional terrain generating unit, A mapping unit for mapping an image of the 3D object and a 3D object; A polygon processing unit for generating at least one polygon according to the mapping result of the mapping unit and determining the directionality for the polygon; A texturing unit for texturing a CCTV image to a polygon generated by the polygon processing unit to generate a three-dimensional CCTV control image; And an attribute information display unit for displaying the attribute information extracted by the GIS layer extraction unit by matching with the 3D object of the CCTV control image.

Also, at least one polygon is generated according to the outline of the mapped CCTV image and the three-dimensional object, and the directionality of the polygon may be determined according to an angle preset to match the object represented by the polygon.

In addition, the 3D-based CCTV control system recognizes specific traces when an event including notification, tracking, or a combination of CCTV cameras is received, predicts the direction of movement of the recognized specific traces, Based CCTV control image for a CCTV image received from a CCTV camera with respect to a candidate region where water may appear, by automatically displaying the 3D-based CCTV control image.

According to the present invention, the GIS information is collected and the GIS layer and the attribute information for the administrative boundary, the building, and the road are extracted, and the layers are superimposed on each other according to the preset altitude and the building GIS layer is moved vertically The 3D object can be generated without generating any additional object modeling.

In addition, according to the present invention, a 3D-based CCTV control image generated by matching a CCTV image to a 3D terrain in real time is provided to a user, and a two-dimensional CCTV control performed in a conventional CCTV control system is provided in a three- So that it is possible to maximize the user's spatio-temporal recognition and situation judgment ability, thereby enabling accurate CCTV control.

According to the present invention, the 3D-based CCTV control image is displayed by matching property information of a road, a building, or a combination thereof, thereby intuitively recognizing information about a surrounding situation during CCTV control.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a 3D-based CCTV control system through matching of a 3D terrain and a CCTV image using GIS information according to an embodiment of the present invention;
FIG. 2 is a conceptual diagram illustrating a process of generating a 3D terrain in a 3D-based CCTV control system according to an embodiment of the present invention; FIG.
3 is a conceptual diagram illustrating a process of generating a 3D CCTV control image in a 3D-based CCTV control system according to an embodiment of the present invention.
FIGS. 4 and 5 are views illustrating an example of a 3D-based CCTV control image according to an exemplary embodiment of the present invention;
FIG. 6 is a block diagram illustrating a detailed configuration of a three-dimensional CCTV control apparatus according to an exemplary embodiment of the present invention.
FIG. 7 is a block diagram illustrating a detailed configuration of a 3D terrain generation unit of a 3D CCTV control apparatus according to an exemplary embodiment of the present invention;
FIG. 8 is a block diagram illustrating a detailed configuration of a CCTV control image generating unit of a three-dimensional CCTV control apparatus according to an exemplary embodiment of the present invention;
FIG. 9 is a flowchart illustrating a process of controlling a 3D-based CCTV according to an exemplary embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

1 is a configuration diagram of a 3D-based CCTV control system (hereinafter, referred to as a 3D-based CCTV control system) through matching of a 3D terrain and a CCTV image using GIS information according to an embodiment of the present invention.

Referring to FIG. 1, a 3D-based CCTV control system 10 according to an embodiment of the present invention includes a CCTV camera 400, a network 500, a control center 20, and a database 600 .

The CCTV camera 400 is installed in at least one specific control area and transmits CCTV images in real time. The CCTV camera 400 stores an identifier (ID) and location information (e.g., latitude and longitude) for distinguishing each other. When the captured video is transmitted to the control center 20, the CCTV camera 400 transmits the identifier and the location information together .

The network 500 connects a communication line between the control center 20, the CCTV camera 400 and the GIS provider 700 to transmit and receive data for three-dimensional CCTV control.

The GIS provider 700 is an organization that provides GIS information and may be an organization such as the Geographic Information Geographical Service or the local government, and provides the GIS information to the control center 20.

The control center (20) carries out the control on the control area based on the CCTV image and the GIS information. The control center 20 includes a three-dimensional CCTV control device 100, a user terminal 200, and a display 300.

The 3D CCTV control apparatus 100 collects CCTV images from at least one CCTV 400 in real time, collects GIS information from the GIS provider 700, and generates 3D-based CCTV control images based on the collected GIS information Dimensional space-based CCTV control.

Since the GIS information may be updated, modified, or adjusted by the GIS provider 700, the 3D CCTV control device 100 may access the GIS provider 700 periodically or at a user's choice, It can be updated by receiving information.

In order to generate a three-dimensional terrain, the 3D CCTV control apparatus 100 firstly extracts, from the GIS information, the GIS layer for the boundary of the administrative zone, the road and the building, the boundary of each administrative zone, And extracts attribute information.

The GIS layer refers to a multi-layered structure of GIS information, consisting of a terrain aerial photo layer, a city and county administrative boundary layer, a highway layer, and a building layer. The lower layer is covered by the upper layer, and ON / OFF of a specific layer and extraction of a specific layer are also possible.

The property information for the boundary of the administrative area includes the name of the administrative area, location information (e.g., latitude and longitude), or a combination thereof. The attribute information on the road includes a road name (or a lot number), position information, or a combination thereof. The property information on the building includes the name of each building, the location information, the height of the building, the type of building, or a combination thereof.

The 3D CCTV controller 100 extracts a digital elevation model (DEM) from the GIS information and extracts a height map including only the height of the basic terrain from the extracted digital elevation model.

Next, the three-dimensional CCTV control apparatus 100 merges the extracted GIS layers into the extracted height map, creates a white box building using the GIS layer and building property information of the building, . The white boxed building generated through the building GIS layer and the property information of the building becomes an important three-dimensional object for matching the 3D terrain and the CCTV image.

The present invention is a technology for texturing a CCTV image on a three-dimensional object (road or building, etc.) appearing on a three-dimensional terrain in real time instead of pre-cutting and mapping a CCTV image to a pre-modeled three-dimensional object. This will be described later with reference to FIG.

The user terminal 200 is configured to monitor a specific zone through a CCTV control image and to perform a CCTV control for a specific range of the control ranges allocated to at least one or more users.

The display 300 displays the CCTV control image generated by the three-dimensional CCTV control device 100.

2 is a conceptual diagram illustrating a process of generating a 3D terrain in a 3D-based CCTV control system according to an embodiment of the present invention.

Referring to FIG. 2, in order to generate a three-dimensional topography as a basic foundation for performing a three-dimensional CCTV control, a three-dimensional CCTV control apparatus 100 periodically or periodically selects a user from a GIS provider 700 To collect GIS information.

Next, the 3D CCTV control apparatus 100 extracts a GIS layer and a digital elevation model for boundaries, roads, and buildings from the collected GIS information to the administrative area.

A numerical elevation model is a generic term for digital terrain or depth survey data. It is also called DEM and represents elevation values only for terrain not including vegetation and artifacts. The scale of the extracted elevation model may be, for example, 1: 1000, 1: 2500, or 1: 5000, and the scale is not limited here. Each GIS layer is extracted with the same scale as the numerical elevation model.

The extracted elevation model is represented by a plurality of colors according to the height of the terrain. In order to increase the readability or visibility with respect to each GIS layer, a height map having a lightness value of, for example, 0 to 255 according to the terrain height .

Next, the 3D CCTV control apparatus 100 merges the respective GIS layers for the border, road, and building for the extracted administrative area into the height map. Each merged GIS layer is extracted from the GIS information with the same scale as the extracted height map, and merged into the height map with different preset altitude values.

The 3D CCTV control apparatus 100 creates a white box type building corresponding to each building based on the building GIS layer after merging the GIS layer and the height map, and photographs the actual building according to a predetermined CCTV image registration process The final 3D CCTV control image is generated by matching the image of the CCTV camera 400 to the 3D terrain including the white box type building.

A CCTV image registration process for generating a three-dimensional CCTV control image will be described in detail with reference to FIG.

3 is a conceptual diagram illustrating a process of generating a 3D CCTV control image in a 3D-based CCTV control system according to an embodiment of the present invention.

3, in order to generate a three-dimensional CCTV control image based on a two-dimensional CCTV image, the three-dimensional CCTV control device 100 first creates a white box-like building corresponding to an actual building based on a building GIS layer as shown in FIG. do.

The white box type building is for each building appearing in the GIS layer. The building information layer (GIS) layer is vertically (for example, in the y axis direction) and includes property information (e.g., building name, building type, building height, location information, The height information is generated according to the scale. On the other hand, if there is no height information, it is possible to create a white box building by setting the predetermined number of floors according to the building type, for example, 15 stories for the apartment building, 5 stories for the house, and 5 stories for the building.

Next, the 3D CCTV control apparatus 100 maps the two-dimensional CCTV image to the generated white box type building.

The CCTV image is received from a CCTV camera 400 photographing an actual building corresponding to a white box type building. The three-dimensional CCTV control device 100 displays a pan, a horizontal movement angle, a tilt (A white-boxed building, a road or a combination thereof) corresponding to an object (a building, a road or a combination thereof) actually photographed by the corresponding CCTV camera according to a combination of the three- . Then, the CCTV image is mapped to the detected 3D object.

The 3D CCTV controller 100 has information on location information of all buildings, roads, and administrative districts, location information of each CCTV camera, pan, tilt, and the like. Accordingly, the three-dimensional CCTV control device 100 can know which real object is being photographed by information on the location information, the pan, and the tilt of the specific CCTV camera. As a result, the 3D CCTV control device can map the CCTV image of a specific actual building taken by a specific CCTV camera to a white box building corresponding to a specific real building.

Next, the three-dimensional CCTV control device 100 generates at least one polygon based on the outline of the CCTV image, the white box building, and the road in the three-dimensional terrain according to the mapping result.

Next, the 3D CCTV control apparatus 100 determines the directionality of the polygon according to the mapped result so as to match the three-dimensional object represented by the polygon. At this time, the directionality of the polygon is determined by a predetermined angle according to the three-dimensional object represented by the polygon.

For example, when three polygons represent the front face of the building, the right face of the building, and the road adjacent to the building as shown in Fig. 3, the portion corresponding to the front face of the building is 0 degrees, the portion corresponding to the right face of the building is the z- And the portion corresponding to the road adjacent to the building is rotated by 90 degrees in the y-axis direction. The reason for determining the directionality of the polygon according to the preset angle is that the CCTV image, which is a two-dimensional-based plane image, is simply overlapped on the three-dimensional terrain, so that the CCTV image is three-dimensionally matched and closer to the real image.

Next, the 3D CCTV control apparatus 100 creates a final 3D-based CCTV control image by texturing the corresponding CCTV image to the determined polygon.

As described above, the 3D CCTV control apparatus 100 generates a plurality of polygons for a portion where the CCTV image and the 3D terrain overlap (or collide) through the mapping of the 2D CCTV image and the 3D terrain, By determining the directionality, CCTV planar images based on two dimensions are generated as CCTV control images, which are three dimensional based three dimensional images.

4 and 5 are views illustrating an example of a 3D-based CCTV control image according to an embodiment of the present invention.

Dimensional CCTV control apparatus 100 displays attribute information of a three-dimensional object including a road, a building, or a combination thereof included in the 3D CCTV control image, so that when the user monitors a specific zone, So that it can be perceived intuitively.

If the three-dimensional object is a road, attribute information (e.g., location information including latitude and longitude, road name or a combination thereof) for each road extracted by the three-dimensional CCTV control device 100 is displayed for each road . If the three-dimensional object is a building, attribute information (e.g., location information including latitude and longitude, building name, building height, or a combination thereof) for each building extracted by the three-dimensional CCTV control device 100 is stored in each building Can be displayed by each.

The attribute information is displayed at the same altitude as the altitude of the displayed object. That is, when the attribute information is the attribute information for the road, it is displayed at the same altitude as the altitude of the road GIS layer set at the time of creating the three-dimensional terrain. If the attribute information is property information for the building, It can be displayed at the same height as the height of the building.

The 3D CCTV control apparatus 100 may display an icon on the CCTV control image according to the location information of each CCTV camera 400 so that the user can intuitively know where the CCTV camera 400 is located do. When the user selects the CCTV icon, the display 300 displays the image received from the CCTV camera corresponding to the CCTV icon. The 3D CCTV control apparatus 100 can display and output the attribute information of each 3D object displayed on the CCTV control image to the output CCTV image.

Referring to FIG. 5 (a), the three-dimensional CCTV control apparatus 100 can display the flow meters in a linked state to display the level of the river in real time in the three-dimensional CCTV control image. Referring to FIG. 5 (b) And display the attribute information of the road, the nighttime recognition rate can be improved.

FIG. 6 is a block diagram illustrating a detailed configuration of a 3D CCTV control apparatus according to an exemplary embodiment of the present invention. Referring to FIG.

6, the 3D CCTV control apparatus 100 includes a CCTV image collection unit 110 for collecting CCTV images in real time from at least one CCTV camera 400, a GIS provider 700 for collecting GIS information from the GIS provider 700, A 3D terrain generation unit 140 for generating a 3D terrain based on the collected GIS information, and a 3D-based CCTV control image generation unit 130 for generating a 3D-based CCTV control image based on the generated 3D terrain and the CCTV image A CCTV control image generation unit 150, a patrol unit 160 for patrolling a specific area or tracking a specific object when a CCTV event occurs, and a control unit 170.

The CCTV image collecting unit 110 collects the two-dimensional CCTV images in real time from at least one CCTV camera 400 installed in the control area through the network 500 and stores them in the database 600, So that the user can manage the image of the mobile terminal 400.

When the CCTV camera 400 transmits the CCTV image, the CCTV camera 400 may transmit the CCTV camera 400 to the 3D CCTV controller 100, including its own location information and identification information (e.g., ID or unique number). Therefore, the CCTV image collecting unit 110 can store and manage the CCTV image according to the identification information of the CCTV camera 400. [

The GIS information collection unit 120 accesses the GIS provider 700 periodically or at a user's selection to collect GIS information.

The 3D terrain generation unit 140 generates a 3D terrain based on the 3D-based CCTV control image using the collected GIS information, which will be described later (refer to FIG. 7).

The CCTV control image generating unit 150 generates a three-dimensional CCTV control image for the space-based control by real-time matching of the CCTV images collected in the generated 3D terrain. The CCTV control image generating unit 150 may display the extracted property information on the CCTV control image and output the CCTV control image to the display 300. When the CCTV control unit 400 outputs the CCTV image to the display 300, Information can be displayed and output. The detailed configuration of the CCTV control image generating unit 150 will be described later (see the description of FIG. 8).

The patrol unit 160 automatically patrols a route preset by the user and tracks the trace when a specific event occurs. The patrol unit 160 sequentially displays CCTV images received from a plurality of CCTV cameras 400 on the corresponding patrol route sequentially or simultaneously when the user sets a patrol route including a source and a destination based on the road in advance do. Of course, a CCTV control image can be generated and displayed based on the CCTV image received from each CCTV camera 400.

In addition, the patrol unit 160 predicts the direction of movement of the specific trace when the event (e.g., notification or tracking) of the CCTV camera 400 occurs and displays the CCTV control image for the candidate region in which the trace may appear using the road Automatically keep track of traces continuously.

The trace may be a person, an automobile, etc., and the patrol unit 160 may track a trace by recognizing a face of a person from a CCTV image or recognizing a number of a car.

Meanwhile, the patrol unit 160 can recognize a human face using various known algorithms such as a face recognition algorithm using feature points, a deep learning-based face recognition algorithm, and the like, and does not limit the face recognition algorithm. Also, the patrol unit 160 can recognize the license plates of the vehicle using various known algorithms such as a fuzzy algorithm and a character recognition algorithm, and does not limit the car number recognition algorithm here.

The patrol unit 160 extracts the road GIS layer from the three-dimensional terrain and displays icons and predicted movement directions of the road and a plurality of CCTV cameras 400 on the display 300, It is possible to display the CCTV camera 400 or the CCTV control image for the CCTV camera 400.

The patrol unit 160 compares the CCTV image frames with each other and compares the positions of the traces to predict the moving direction of the traces. The patrol unit 160 can predict the moving direction of the traces by comparing the CCTV image frames with the three- And output the CCTV control image to at least one or more CCTV cameras located within the radius of the CCTV camera that is photographing the trace to the display 300. [

The controller 170 performs overall control of the 3D CCTV controlling apparatus 100 such as data flow or constituent parts between the constituent parts of the 3D CCTV controlling apparatus 100.

FIG. 7 is a block diagram illustrating a detailed configuration of a 3D terrain generation unit of a 3D CCTV control apparatus according to an exemplary embodiment of the present invention. Referring to FIG.

Referring to FIG. 7, the 3D terrain generation unit 140 generates a three-dimensional terrain (GIS) from the GIS information to a GIS layer for extracting property information about boundaries, buildings, and roads, A height extracting unit 142 for extracting a height map from the GIS information, a merging unit 143 for merging the GIS layer into the height map, and a GIS layer for the building, And a white box building generation unit 144 for finally generating a three-dimensional CCTV control image by generating a white box type building.

The GIS layer extracting unit 141 and the height map extracting unit 142 can extract each GIS layer and height map from the GIS information by using various tools such as a GIS tool. The GIS layer extracting unit 141 also extracts attribute information on boundaries, roads, and buildings for each administrative area when extracting the GIS layer for the administrative area, the building, and the road.

The height map extracting unit 142 extracts a digital elevation model from the GIS information and extracts different brightness values (for example, 0 to 255) depending on the height of the basic terrain including only the height of the terrain from the extracted digital elevation model And extracts the height map.

The height map extracting unit 142 sequentially extracts a digital elevation model and a height map for the digital elevation model from the GIS information, and the merging unit 143 merges the respective GIS layers into the extracted height map. At this time, the merged GIS layers are merged according to the predetermined altitude, and each GIS layer is merged with the height map at different heights.

The white box building generation unit 144 generates a white box type building corresponding to the actual building on the basis of the property information about the building, raising the GIS layer for the building merged with the height map, thereby finally creating the three-dimensional topography.

FIG. 8 is a block diagram illustrating a detailed configuration of a CCTV control image generating unit of a three-dimensional CCTV control apparatus according to an embodiment of the present invention.

Referring to FIG. 8, the CCTV control image generation unit 150 includes a mapping unit 151 for mapping a two-dimensional CCTV image to a three-dimensional terrain generated through the three-dimensional terrain generation unit 140, A polygon processing unit 152 for generating at least one polygon and determining the directionality of the generated polygon, and a texturing unit 153 for texturing the CCTV image in the polygon.

The mapping unit 151 is configured to map the actual objects (buildings, roads, or a combination thereof) photographed by the CCTV camera 400 based on the location information of the specific CCTV camera 400, the pan, tilt information, Lt; / RTI > The mapping unit 151 detects a 3D object (a white box corresponding to a building, a road or a combination thereof) corresponding to the recognized object, and maps the CCTV image received from the specific CCTV camera 400 .

The polygon processing unit 152 generates at least one polygon based on the CCTV image and the outline of the 3D object according to the mapping result. The polygon processing unit 152 determines the directionality of the polygon at a predetermined angle according to the object indicated by the generated polygon. This has been described above with reference to FIG.

The texturing unit 153 generates a 3D-based CCTV control image by matching the CCTV image to the 3D terrain by texturing the corresponding CCTV image to the polygon. The texturing may be performed using UV coordinates, but the present invention is not limited thereto.

The attribute information display unit 154 displays attribute information of the 3D object displayed on the generated CCTV control image. The attribute information means attribute information about the administrative area, the building, and the road extracted by the three-dimensional terrain generating unit.

FIG. 9 is a flowchart illustrating a process of controlling a 3D-based CCTV according to an exemplary embodiment of the present invention.

In step S110, the real-time CCTV image is collected from at least one CCTV camera located in the control area through the CCTV control device, and the GIS information is collected from the GIS provider.

In step S120, the CCTV controller generates a 3D terrain using the GIS information collected in step S110.

In step S130, the CCTV controller generates a three-dimensional CCTV control image by matching the 3D terrain and the CCTV image generated in step S120.

In step S140, the 3D CCTV control apparatus 100 displays the CCTV control image, thereby enabling the 3D-based CCTV control to be performed.

10 is a diagram for explaining an optimization technique for reducing a system load.

The optimization technique is called load-of-detail (LOD) to reduce the load on the 3D-based CCTV image generation and display system.

Optimization is possible with vertical optimization (optimization with altitude), horizontal optimization (optimization with horizontal distance), and rendering optimization (rendering range limitation when rotating a CCTV camera).

Horizontal optimization is a technique for adjusting the screen resolution and the number of mappings to optimize the capacity according to the horizontal distance. For example, the image display distance is limited to a horizontal distance of 200 mm at a reference point, and it is possible to display up to 100 meters in HD class, 100 to 200 meters in VGA class, and HD class image to map up to 64 CCTV images on a near distance basis . In addition, icons of 200m ~ 2km should be displayed, icons of 200m ~ 1km may be displayed, and more than 1 ~ 2km may be applicable of displaying the number of CCTV at the center point of Eupyong-dong.

Rendering optimization reduces the system load by not rendering invisible CCTV images when the CCTV camera rotates. For example, as shown in FIG. 10, it is possible to update the image within the range of 135 degrees which is the rotation range of the CCTV, and not to update the image in the other range.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10 - 3D-based CCTV control system
20 - Control Center
100 - 3D CCTV control unit
110 - CCTV image collecting section
120 - GIS information collection section
130 -
140 - 3D terrain generation unit
150 - CCTV control image generating unit
160 -
170 -
200 - User terminal
300 - Display
400 - CCTV camera
500 - Network
600 - Database
700 - GIS provider

Claims (5)

A CCTV image collecting unit for collecting CCTV images from at least one CCTV camera in real time;
A GIS information collecting unit for collecting GIS information from a GIS provider;
A three-dimensional terrain generation unit for generating a three-dimensional terrain including a three-dimensional object for a road, a building, or a combination thereof based on the GIS information collected by the GIS information collection unit; And
A CCTV control image generating unit for generating a three-dimensional CCTV control image by matching the CCTV images collected by the CCTV image collecting unit to the 3D terrain generated by the 3D terrain generating unit
Lt; / RTI >
The 3D terrain generation unit may include a GIS layer extraction unit for extracting GIS layers for boundaries, buildings, and roads from the GIS information collected by the GIS information collection unit, property information about boundaries, buildings, and roads for each administrative area; A height map extracting unit for extracting a digital elevation model from the GIS information collected by the GIS information collecting unit and extracting a height map having different contrast values according to the terrain height from the extracted digital elevation model; A merging unit merging each GIS layer extracted by the GIS layer extracting unit into a height map extracted by the height map extracting unit and merging each GIS layer according to a predetermined height; And a white box building generating unit for generating a 3D terrain by vertically raising the GIS layer for the building and generating a white box building corresponding to the actual building,
The CCTV control image generating unit detects a three-dimensional object captured by the CCTV camera according to the pan, tilt, or a combination of the CCTV camera from the 3D terrain generated by the 3D terrain generating unit, A mapping unit for mapping a three-dimensional object; A polygon processing unit for generating at least one polygon according to the mapping result of the mapping unit and determining the directionality for the polygon; A texturing unit for texturing a CCTV image to a polygon generated by the polygon processing unit to generate a three-dimensional CCTV control image; And an attribute information display unit for displaying the attribute information extracted by the GIS layer extracting unit and matching the 3D object of the CCTV control image,
The polygon is generated by at least one of the CCTV images and the outline of the 3D object, and the direction of the polygon is determined by a preset angle according to the object indicated by the polygon. 3D - based CCTV control system through matching. delete delete delete The method according to claim 1,
When an event including notification, tracking, or a combination thereof of a CCTV camera is received, it is possible to recognize a specific trail to predict a moving direction of the recognized specific trail, and to predict a moving direction of a candidate area A 3-dimensional CCTV control image for the CCTV image received from the CCTV camera is automatically displayed to thereby continuously track the trace.
Based CCTV control system using GIS information and matching of 3D terrain and CCTV images.

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