KR100955026B1 - Apparatus and method for displaying picture of segmented region in monitoring system - Google Patents

Abstract

PURPOSE: A selective screen division display device of monitoring image and a method thereof are provided to selectively decide a monitoring area and to rapidly magnify the selected area, thereby enabling more exact monitoring. CONSTITUTION: A first image division unit(304) divides monitoring images of one frame into multiple monitoring area images. According to security level, the first image division unit outputs only the image of permitted monitoring area. A second image division unit(310) divides the permitted monitoring image into N sub areas. The second image division unit magnifies the image of selected sub area among the N sub area. An image output unit(316) changes the image of the first image division unit or the second image division unit into an image signal.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus and method for selectively displaying divided images of a surveillance image,

The present invention relates to a surveillance video display apparatus and method in a CCTV (Closed-Circuit Television) surveillance system, and more particularly to a surveillance video display apparatus and method in a surveillance video surveillance system using CCTV The present invention relates to an apparatus and method for selectively displaying divided images of a surveillance image that can be selectively displayed on a screen by a user in accordance with a purpose of use and an object (security level).

Generally, in the case of a CCTV surveillance system, a plurality of cameras are installed in a surveillance target area, images of a plurality of surveillance surveillance areas are input in real time, and an operator monitors surveillance in a central control room. At this time, the surveillance images of a plurality of surveillance regions are assembled into a frame of one frame from a DVR (Digital Video Recorder) and then stored in the storage, and further divided into surveillance images for each camera and displayed as one screen. In this case, the entire surveillance image for the whole surveillance area is displayed without filtering, so that all the surveillance images can be viewed by all people regardless of the security level.

On the other hand, the need for information security has become more important in recent years, and there are increasing instances in which surveillance systems are required to distinguish between a screen that is disclosed according to an operator's rating and a screen that should not be displayed.

For example, in the case of a military unit, a security company, etc., it is determined whether or not the screen of a surveillance area is to be disclosed according to the rank of an administrator, a facility operator, a security guard, and the like. However, conventionally, since an image transmitted through a DVR can be observed by anyone regardless of the level and security level, it is troublesome and costly to install a separate monitor in order to allow only the administrator to view the monitoring image for a specific area .

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a DVR system and a DVR system, which can prevent a surveillance image captured by a plurality of cameras from being assembled into a single- The present invention provides a selective screen division display apparatus and method for a surveillance image which can be selectively displayed on a screen by a user in accordance with a target (security level).

Another object of the present invention is to provide an apparatus and method for selectively displaying divided images of a surveillance image in which a user can divide and selectively display a selectively displayed image in a display device and enlarge a specific screen to a full screen will be.

According to another aspect of the present invention, there is provided a surveillance system for integrating K individual video images input from K video cameras into an image of one frame by a DVR,

A video input unit for receiving a supervised video; First image dividing means for dividing the supervised image of the one frame into a plurality of surveillance region images and outputting only surveillance region images according to the security level; Second video dividing means for dividing the supervisory image allowed by the first video dividing means into N sub regions and displaying the same, enlarging and outputting an image of the sub region selected by the user among the N sub regions; An image output unit for converting an image input from the first image dividing unit or the second image dividing unit into a video signal suitable for an LCD module and outputting the converted video signal; An LCD module for displaying an image output by the video output unit; And if the user is authenticated and the authentication is successful, the security level and the number of sub-areas (N) are set according to the operation of the user and the control signal is set so that the first image dividing means selects the image of the permissible surveillance region And controlling the second image dividing unit to enlarge and display the image selected by the user in the allowed surveillance area.

Wherein the first image dividing means comprises: a first dividing unit for dividing a supervised image of one frame input through the image input unit into four surveillance regions; And a first resizing unit for scaling the size of the image selected by the first selecting unit to fit the resolution of the LCD to adjust the size,

Wherein the second image dividing means includes a second dividing unit for dividing the image resized by the first resizing unit into an image of N sub regions according to a control signal, And a second resizing unit for scaling the image of the sub region selected by the second selecting unit so as to match the resolution of the LCD to adjust the size of the sub region.

According to another aspect of the present invention, there is provided a method of monitoring a video image, the method comprising: inputting K surveillance images input from K video cameras into a frame image; Dividing the inputted monitoring image of one frame into four monitoring areas; Selecting an allowed surveillance area according to a security level among the divided surveillance areas; Adjusting a size of an image of the selected surveillance region by scaling the image size of the selected surveillance region to fit the resolution of the monitor; Dividing the resized image into N sub-regions according to the setting; Selecting an image of one sub-region according to a user's selection in the divided image; Adjusting a size of the selected sub-region by scaling the image to fit the resolution of the monitor; And a step of inputting the size-adjusted image and displaying the input image on a monitor.

The apparatus and method for selectively displaying a surveillance video according to the present invention independently display the video selected by the user without using any additional equipment, The monitoring video can be displayed differently according to the security level set in the monitor. Also, according to the present invention, a screen is displayed in a divided area so that a user can easily select an area, and the user can quickly enlarge and display the selected area, thereby enabling more accurate monitoring.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings. The following examples are merely illustrative of the present invention and are not intended to limit the scope of the present invention.

1 is a block diagram showing the overall configuration of a surveillance system using a selective screen split display apparatus according to the present invention.

As shown in FIG. 1, the surveillance system according to the present invention includes a plurality of CCTV cameras 10-1 to 10-K for photographing respective surveillance areas and transmitting individual surveillance images, and CCTV cameras 10-1 A DVR 20 that assembles the individual surveillance images input from the DVR 20 into the supervisory images of one frame and stores them together with time information in an internal storage device and outputs the surveillance images to each monitor, And a surveillance monitor 30 for dividing the surveillance image of one frame and outputting only the images of the surveillance region permitted according to the security level. For convenience of understanding, 16 CCTV cameras generate 16 individual surveillance images in the embodiment of the present invention, and the surveillance monitor 30 includes a security level 1 administrator monitor 30- 1), a security classroom monitor (30-2) for viewing only the images of the permitted area, and a security classroom security monitor (30-3) for viewing only the image of the designated area. do.

1, the monitoring monitor 30 can be variously installed according to the system configuration. In the embodiment of the present invention, the manager monitor 30-1, the status room monitor 30-2, the security room monitor 30- 3), it is possible to selectively display images on each of the three monitors. For example, the supervisory monitor 30-1 displays 16 surveillance images in total, the situation room monitor 30-2 exposes 4 images out of the 16 surveillance images, and the guard room monitor 30-3 Of the 16 surveillance images, 4 identical images or 4 different images can be displayed as the monitor room monitor.

FIG. 2 is a block diagram of a selective screen division display apparatus according to the present invention.

2, the selective screen division display apparatus 300 according to the present invention includes an image input unit 302, a first division unit 304, a first selection unit 306, a first resizing unit 308 A second selecting unit 312, a second resizing unit 314, an image output unit 316, an LCD 318, a remote controller 320, a remote controller receiving unit 322, (324). The first divided unit 304, the first selector 306, and the first resizing unit 308 divide the input supervisory image into images of four surveillance regions such as A, B, C, and D, And outputs the scaled image to the LCD screen through the scaled image output unit 316. The second divided unit 310, the second selected unit 312, the second divided unit 312, 2 resizing unit 314 divides the image of the allowed surveillance region into 4 or 6 regions according to the user's setting, enlarges the selected region by the user, and outputs the enlarged image to the LCD screen through the image output unit It is a quarterly installment for.

Referring to FIG. 2, the image input unit 302 receives and prepares a surveillance image obtained by combining DVR 20's surveillance images with individual surveillance images captured by 16 CCTVs. At this time, the individual monitoring image has a size of 256 x 192, and the monitoring image of one frame in which 16 individual images are combined is 1024 x 768, and is composed of 16 divided screens. And, in the embodiment of the present invention, the LCD 318 has a size of 1680 x 1050, so that the monitor images of smaller size are resized and displayed on the LCD through scaling.

The first dividing unit 304 divides the monitoring image of one frame inputted through the image input unit 302 into four monitoring regions. The first selecting unit 306 divides the monitoring image of the one frame input from the first dividing unit 302, The first resizing unit 308 scales the size of the image selected by the first selecting unit 306 to fit the resolution of the LCD 318 and adjusts the size thereof .

The second division unit 310 divides the image resized by the first resizing unit 308 into N images in accordance with a control signal, and the second selecting unit 312 divides the image resized by the first resizing unit 308 by the second dividing unit 310 The second resizing unit 314 scales the image selected by the second selecting unit 312 to fit the resolution of the LCD 318 and adjusts the size of the selected image do.

The image output unit 316 receives the image of the first resizing unit 308 or the image of the second resizing unit 314 and converts the image into an image signal suitable for the LCD and outputs the image signal to the LCD 318. The image output unit 316 To display the image to be viewed by the user.

The remote controller 320 converts the input of the user into an infrared (IR) signal and transmits the IR signal. The IR receiver 322 receives the remote control signal and provides the IR code to the controller 324.

When the user is authenticated and the authentication is successful, the controller 324 sets the security level and the number N of the divided areas according to the user's operation and controls the first selector 306 to select the image according to the set security level And controls the second division unit 310 and the second selection unit 312 to enlarge and display the image selected by the user in the allowed surveillance region.

3 is a flowchart illustrating a selective screen segmentation display procedure according to the present invention.

Referring to FIG. 3, a device 300 according to the present invention displays a menu screen for setting the security level and the number of screens to be divided when the power is turned on (S1, S2). When the security level has already been set, it displays the set security level as well as a menu for changing the security level.

When the setting is selected on the menu screen, an authentication procedure such as password verification is performed. If the authentication is successful, the security level and the number of sub-areas to be divided are set according to a predetermined procedure (S3 to S8).

In the embodiment of the present invention, the security level can be classified as shown in Table 1 below.

Security rating Monitoring area  manager 1 rating all  manager 2 ratings A, B  Operator 3 ranks A or B  security

If the setting is completed or the security level is already set, the security level is determined and then the permitted surveillance area is output on the monitor screen according to the determined security level (S9).

For example, if the security level is Grade 1, the entire area of the input image is displayed on the screen (S10, S11). If the security level is Grade 2, only the areas A and B allowed for security Grade 2 are displayed on the screen In case of security level 3, only the area (A or B only) allowed for security level 3 is displayed on the screen (S14, S15).

FIG. 4 is a detailed flowchart of the supervised video display procedure S11 of FIG. 3, wherein the supervisor can view images of all surveillance regions.

Referring to FIG. 4, when a video signal is input, the input image is divided into four regions, and then the entire region is divided into four regions and displayed on a screen (S101 to S103). The administrator selects a desired area on the screen divided into four areas by using the remote controller.

Accordingly, if the apparatus of the present invention receives and decodes a remote control signal and then selects a divided area, the selected area is divided into N sub-areas and displayed again (S104 to S108).

If the manager selects the sub area again, the apparatus according to the present invention receives and decodes the remote control signal and decodes the selected sub area and reselects the selected sub area and enlarges the selected sub area to one screen (S109- S111).

FIG. 5 is a flowchart of the security level 2 or level 3 supervisory image display procedure (S13 or S15) shown in FIG. 3, in which the operator or the security guard can view an image of the surveillance area permitted.

Referring to FIG. 5, when a video signal is input, the input image is divided into four regions, and only the allowed region is selected according to the security level, and then the region is resized and the selected region is divided into N sub regions (S201 to S205). The operator or security guard divides into N sub-areas and selects the sub-area to be enlarged on the screen displayed by the remote controller.

Accordingly, if the remote control signal is received and decoded and the operation of selecting the sub region is performed, the selected sub region is resized and then the selected sub region is enlarged and displayed in one screen (S206 to S211).

FIG. 6 is a conceptual diagram of a monitor image of 16 CCTV cameras as a frame of one frame according to the present invention, FIG. 7 is a conceptual diagram illustrating a concept of dividing a monitoring screen of one frame into 4 regions according to the present invention, 8 is a schematic view showing a concept of dividing one region selected in accordance with the present invention into four sub-regions and displaying the selected sub-region in one screen.

According to the present invention, the 16 images input from the DVR 20 are displayed on the monitor 30 as one frame of 1024x768 image. At this time, the 16 divided images are divided into four areas, and when the user selects an area The corresponding area is displayed on the full screen of 1680 × 1050. The displayed area is composed of quadrant images, and one of them can be selected to display 1680x1050 full screen.

Referring to FIG. 6, an image input from the first DVR 20 displays 16 CCTV images having an image size of 256 × 192 on a screen of 1024 × 768 in one frame in a monitor 30. As shown in FIG. 7, the 16-split screen displayed on the monitor 30 is divided into four areas by 1680 × 1050 in the scaler chip and displayed on the monitor 30, And display it on the screen. For example, when the A area is selected, a quadrant image of the A area is displayed on a full screen of 1680 x 1050 pixels. Or B, or C, D, respectively. Selection of such a 16-division image is not performed using a DVR, a computer, or the like, but can be selected and set in the monitor itself.

The selected area A is composed of four images of 840x510, and one of them can be selected and displayed on the screen as shown in FIG. For example, when selecting image # 1, an image of 840 × 510 is displayed on a full screen of 1680 × 1050. In addition, images 2, 3, and 4 can be selected and displayed on the entire screen. The order of display of each corresponding image is the order of the images. If the first image is displayed on the current screen, to display the fourth image, press the switch 2 or 3 or 4 sequentially on the monitor using the switch or the remote control You can choose.

When the B region is selected in the 16-split screen, four images of the B region are displayed by selecting 1/2 of the horizontal size of the entire screen. Furthermore, in addition to the method of expressing four images of four regions in quad-divisions in a 16-split screen, one region can be expressed as six divisions of six images. In this case, differentiated images may be provided for each user by using overlapping portions between regions.

9 is a configuration example of monitor hardware to which the present invention is applied. 9, a terminal for receiving a video input and a sound input from the outside is constituted, and the RGB signal and the DVI input through the PC are input to the monitor, As shown in FIG. As a processor, a scaler chip (SCALER chip) can be used, and the minimum specification of a scaler chip is a clock number 14.318MHz, 256pin. In addition, the monitor has a keypad for ON / OFF operation, IR remote control receiver, 128Mbyte DRAM that displays 1Mbyte of flash memory and video on the screen. The LCD aspect ratio is composed of 1680 × 1050, and two 3W speakers are installed for speaker output for sound input.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, 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 appended claims.

FIG. 1 is a block diagram of an overall configuration of a surveillance system using a selective screen division display apparatus according to the present invention.

FIG. 2 is a block diagram of a selective screen division display apparatus according to the present invention,

FIG. 3 is a flowchart illustrating a selective screen segmentation display procedure according to the present invention.

FIG. 4 is a flowchart of the supervised image display procedure of the security first class shown in FIG. 3,

FIG. 5 is a detailed flowchart of the security level 2 or level 3 supervisory image display procedure shown in FIG. 3,

FIG. 6 is a conceptual diagram of a surveillance image of 16 CCTV cameras as a screen of one frame according to the present invention,

7 is a conceptual diagram showing a concept of dividing a monitoring screen of one frame into four regions according to the present invention;

FIG. 8 is a schematic view showing a concept of dividing one region selected in accordance with the present invention into four sub-regions and displaying the selected sub-region in one screen;

9 is a configuration example of monitor hardware to which the present invention is applied.

Description of the Related Art [0002]

10-1 ~ 10-K: CCTV camera 20: DVR

30, 30-1 to 30-3: Surveillance monitor 300: Screen division display device

302: image input unit 304, 310:

Claims (5)

A surveillance system for integrating K individual images input from K video cameras into an image of one frame by a DVR and outputting the combined images to a surveillance monitor, A video input unit for receiving a supervised video; First image dividing means for dividing the supervised image of the one frame into a plurality of surveillance region images and outputting only surveillance region images according to the security level; Second video dividing means for dividing the supervisory image allowed by the first video dividing means into N sub regions and displaying the same, enlarging and outputting an image of the sub region selected by the user among the N sub regions; An image output unit for converting an image input from the first image dividing unit or the second image dividing unit into a video signal suitable for an LCD module and outputting the converted video signal; An LCD module for displaying an image output by the video output unit; And If the user is authenticated and the authentication is successful, the security level and the number of sub-areas (N) are set according to the user's operation and a control signal is generated so that the first image dividing means selects the image of the permissible surveillance region according to the set security level And a controller for controlling the second image dividing unit to enlarge and display the image selected by the user in the allowed surveillance area. 2. The apparatus according to claim 1, A first division unit for dividing a surveillance image of one frame input through the image input unit into four surveillance regions; A first selection unit for selecting a surveillance region according to a security level among the surveillance regions divided by the first division unit; And a first resizing unit for scaling the size of the image selected by the first selecting unit to fit the resolution of the LCD to adjust the size of the selected image. The image processing apparatus according to claim 2, wherein the second image dividing means A second dividing unit for dividing the image resized by the first resizing unit into an image of N sub regions according to a control signal, A second selector for selecting one sub-region according to a user's selection in an image divided by the second division unit; And a second resizing unit for scaling the image of the sub-region selected by the second selecting unit to fit the resolution of the LCD to adjust the size of the selected image. The apparatus of claim 1, wherein the control unit And a scaler chip. Receiving K surveillance images input from K video cameras into a single frame image; Dividing the inputted monitoring image of one frame into four monitoring areas; Selecting an allowed surveillance area according to a security level among the divided surveillance areas; Adjusting a size of an image of the selected surveillance region by scaling the image size of the selected surveillance region to fit the resolution of the monitor; Dividing the resized image into N sub-regions according to the setting; Selecting an image of one sub-region according to a user's selection in the divided image; Adjusting a size of the selected sub-region by scaling the image to fit the resolution of the monitor; And And receiving the adjusted size image and displaying it on a monitor.

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