KR100952990B1 - Multiple image coding method and apparatus thereof - Google Patents

Abstract

PURPOSE: A multitude video coding device and a method thereof are provided to support a function through which the resolution and motion speed of a video simultaneously and two or more video compression technology in order to reflect requirements of an operator to the maximum. CONSTITUTION: A video requirement value reception unit(105) receives a digital video requirement value from the outside. According to the digital video requirement value, an video modulation unit(101) support M-JPEG and H-264 video compression technology at the same time. The video modulation unit changes the resolution and motion speed of a video at the same time. The video modulation unit transmits different digital video coding values to the outside through a network interface(104). A digital video signal recovery unit recovers a digital video signal into a screen display video.

Description

Multiple Image Coding Method And Apparatus

The present invention relates to an image coding apparatus and a coding method, and more particularly, to a multiple image coding apparatus and a coding method using the same, which can simultaneously transmit and use coded image values by simultaneously supporting and utilizing various encoding modes. It is about.

Encoder is an image device that converts analog video signals collected from analog cameras into digital video signals, and converts the converted digital video signals to a remote video monitoring system operator through a network. Transmission and coding methods of an image include M-JPEG, MPEG-1, MPEG-2, MPEG-4, and H.264.

Dual encoding means that the video resolution is not changed by using one video compression technology according to the request of the remote operator who monitors the video when converting the analog video signal collected from one analog camera to the digital video signal. It converts only the moving speed of the video and transmits it to the remote video monitoring system operator.

Dual Codec is a video compression method (MJPEG, MPEG-) that is variously supported by encoder according to the request of remote operator who monitors video when converting analog video signal collected from one analog camera to digital video signal. 2, MPEG-4, H-264, etc.) to select only one compression method, convert it to a digital video signal, and send it to the remote video monitoring system operator.

Hereinafter, a conventional image coding technique will be described in detail with reference to the accompanying drawings.

First, FIG. 1 is a diagram illustrating a schematic configuration of a digital network CCTV system (hereinafter referred to as a "video surveillance system") utilizing an existing network and the internal structure of an encoder used in the system.

As shown in FIG. 1, the video surveillance system according to the related art includes an analog camera 200, an encoder 100, a monitoring PC 301 connected to the same network, and a storage 400 for image storage.

The analog camera 200 has a function of a general surveillance camera and is installed in security vulnerable parts such as indoor / outdoor and road of a building, and is connected to the encoder 100 by a wired cable.

The analog camera 200 includes a speed dome analog camera, a box type analog camera, and a camera in which a P (Pan) / T (Tilt) / Z (Zoom) controller is combined.

The encoder 100 has a function of converting an image signal, a PTZ control signal, and an audio signal of the analog camera 200 into a digital signal through a video compression technique.

In this case, the encoder 100 supports only one video compression technique among video compression techniques of different formats (M-JPEG, MPEG-2, MPEG-4, H-264, etc.) and simultaneously supports two or more video compression techniques. I can't.

The monitoring PC 301 is connected to the same network as the analog camera 200 and the encoder 100, and the original surveillance video signal and the camera control signal and the digital signal transmitted through the network through the operating system for monitoring and Restores the audio signal and performs the function shown to the operator through the screen.

The image storage storage 400 is responsible for storing the restored surveillance image through the monitoring operating system.

The video surveillance system of FIG. 1 simply converts an analog video signal into a digital video signal through video compression technology and transmits it to a remote location by using a network. There is a problem that can not respond to various needs, such as limitations not taken into consideration and unable to actively cope with changes in the CCTV system.

2 is a view showing a schematic configuration of a video surveillance system using a conventional dual encoding technology and the internal structure of an encoder used in the system.

As shown in FIG. 2, the video surveillance system using the dual encoding technology includes an analog camera 200, an encoder 100, a monitoring PC 301 connected to the same network, a server 303 for video storage, It consists of a storage 400 for image storage.

Like the analog camera of FIG. 1, the analog camera 200 has a function of a general surveillance camera and is installed in a security vulnerable part such as indoor / outdoor and road of a building, and is connected to the encoder 100 by a wired cable. .

Here, the analog camera 200 includes both a speed dome analog camera or a box-type analog camera and a camera in which a PTZ controller is combined.

The encoder 100 has a function of converting an image signal, a PTZ control signal, and an audio signal of the analog camera 200 into a digital signal through a video compression technique.

Here, the encoder 200 supports only one video compression technology selected from video compression technologies of different formats (M-JPEG, MPEG-2, MPEG-4, H-264, etc.) like the encoder of FIG. 1 described above. After transmitting the digital signal converted by the specific video compression technology to the operator, the resolution of the image is not variable according to the operator's judgment, and it changes only the video movement speed to monitor the image by separating the real-time monitoring image and the storage image separately. The difference is that it stores.

The monitoring PC 301 is connected to the same network as the analog camera 200 and the encoder 100, and the original surveillance video signal and the camera control signal and the digital signal transmitted through the network through the operating system for monitoring and It restores the audio signal and shows it to the operator through the screen, and reproduces the monitoring image in which the movement speed of the image is changed in real time according to the operator's request.

The image storage management archive server 304 is responsible for storing and managing image information collected through all the encoders 100 connected to the image monitoring system of FIG. 2 as the image storage storage 400.

The image storage storage 400 stores the surveillance image restored through the monitoring operating system, and stores the image for storage in which the movement speed of the image is variable according to the request of the operator.

In the video surveillance system using the dual encoding technology of FIG. 2, when the analog video signal is converted into the digital video signal through the video compression technology, the video resolution and the moving speed of the video cannot be converted. After varying only the moving speed of the image differently, the variable digital video signal is transmitted to the remote video monitoring PC 301 and the video storage server 304 by using a network. That is, the operator receives one coded digital image and then changes the digital image value to create two digital image values having the same resolution but different movement speeds. It is re-transmitted into real-time video or real-time video for storage.

Therefore, the video surveillance system using the dual encoding technology of FIG. 2 does not change the video resolution, which greatly affects the determination of network bandwidth and video storage capacity. do. This is a very inefficient system configuration method because it has a great influence on the capacity selection of the network and video storage devices, which increases the constraints on the system configuration and increases the expenditure of the system construction exponentially.

3 is a diagram illustrating a schematic configuration of a video surveillance system using a conventional dual codec technology and the internal structure of an encoder used in the system.

As shown in FIG. 3, the video surveillance system using the dual codec technology includes an analog camera 200, an encoder 100, a monitoring PC 301 connected to the same network, and a storage 400 for image storage. have.

Like the analog camera described above, the analog camera 200 has a function of a general surveillance camera and is installed in a security vulnerable part such as indoor / outdoor and road of a building, and is connected to the encoder 100 by a wired cable.

Here, the analog camera 200 includes both a speed dome analog camera or a box-type analog camera and a camera in which a PTZ controller is combined.

The encoder 100 has a function of converting an image signal, a PTZ control signal and an audio signal of the analog camera 200 into a digital signal through a video compression technique, and various compression techniques (MJPEG, MPEG-2, MPEG-4, H-264, etc.) are embedded at the same time, but more than one video compression technology can not be used at the same time, only one video compression technology is used at a time, depending on the monitoring system operator's choice.

The monitoring PC 301 is connected to the same network as the analog camera 200 and the encoder 100, and the original surveillance video signal and the camera control signal and the digital signal transmitted through the network through the operating system for monitoring and Restores the audio signal and performs the function shown to the operator through the screen.

The image storage storage 400 is responsible for storing the surveillance video restored through the monitoring software.

The video surveillance system using the dual codec technology of FIG. 3 includes various video compression technologies (MJPEG, MPEG-2, MPEG-4, H-264, etc.) in the encoder, but does not use two or more compression methods at the same time. Since only one compression method is selected at a time, the video is compressed and transmitted to a remote location, the video is monitored using a digital signal coded as a digital video, and the video is stored in the video storage device.

Therefore, the video surveillance system using the dual codec technology of FIG. 3 has the advantage of selecting various compression technologies, but also the resolution and image of the image which has the greatest influence on the network bandwidth and the capacity of the video storage device when transmitting the video signal. Since the movement speed of the antenna cannot be changed, there is a problem in that there is a high cost / low efficiency system structure that cannot consider the interworking between various networks and the capacity of the image storage device.

Therefore, the inventors of the present invention do not change the resolution of the image and the moving speed of the image pointed out in the above-described conventional techniques, and various video compression techniques (M-JPEG or H-264) are generated due to the encoder not being used at the same time. The present invention was invented and completed while intensively researching a method for solving a problem of a high cost / low efficiency system structure.

Accordingly, an object of the present invention is to provide a multi-image coding method and apparatus capable of actively coping with changes in a video surveillance system in consideration of interworking between various networks and variability of video storage capacity.

In order to achieve the above object, the present invention provides an image modulator for receiving an image signal from an analog camera and converting the image signal into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, and a bidirectional audio signal. An image encoding apparatus having an audio modulator for controlling a digital signal and a network interface for transmitting a digital image signal converted by a video compression technique to a remote place through a network, the image encoding apparatus receives a digital image request value from an external device. An image request value receiver applied to the image modulator; The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value, and real-time monitoring of the client for each of the video compression techniques according to network bandwidth and video storage capacity. Different digital image coding values can be changed by simultaneously changing the resolution and movement speed of the image for Live Monitoring mode, Movie Picture Recording mode, and Remote Client Live Monitoring mode for heterogeneous network connection operators. A function for transmitting to the outside via the network interface; A main video controller for system management comprising a digital video signal requesting unit for requesting a coding value of an image to the video request value receiving unit and a digital video signal restoring unit for restoring a digital video signal received through the network interface to a screen display image; It provides a multi-image coding apparatus comprising.

In addition, the digital video signal request unit of the present invention, the client real-time monitoring mode, storage video recording mode and heterogeneous digital video coding value required by the operator of the system management main server according to the network bandwidth and storage capacity of the video According to the client real-time monitoring mode for the network connection operator to generate a different variable image to the video request value receiving unit, wherein the digital video signal recovery unit, the variable video signal received from the image modulator is the digital video It provides a multi-image coding apparatus characterized in that it is coded to the value requested by the signal requester, and reconstructs it into an image that can be seen by the operator.

In addition, the image modulator of the present invention, for the operator client real-time monitoring mode, the video compression method is selected as the H-264, the resolution of the video selects 4CIF, the moving speed of the video 30fps, 20fps The present invention provides a multi-image coding apparatus characterized by selecting one of 11, 15 fps, 10 fps, 7 fps, 6 fps, 5 fps, 4 fps, 3 fps, 2 fps, and 1 fps.

In addition, the image modulator of the present invention, for the storage image recording mode, the video compression method to select the M-JPEG, the resolution of the video selects one of four of the CIF, 2CIF, 4CIF, VGA In addition, the moving speed of the image provides a multi-image coding apparatus, characterized in that one of the 11 selected from 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.

The video modulator of the present invention may select the video compression method as H-264 for the client real-time monitoring mode for the heterogeneous network connection operator, and the resolution of the video is CIF, 2CIF, 4CIF, or VGA. It selects one, and the moving speed of the image provides a multi-image coding apparatus, characterized in that one of the 11 selected from 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps do.

The present invention provides an image modulator for receiving an image signal from an analog camera and converting the image signal into a digital image signal, a data modulator controlling the analog camera and controlling an input / output of an alarm, an audio modulator controlling a two-way audio signal, Video coding apparatus having a network interface for transmitting a digital video signal converted by video compression technology to a remote place through a network and a video request value receiving unit for receiving a digital video request value from the outside and applying the digital video request value to the video modulator. The method of claim 1, wherein the control unit of the system management main server managing the system including the image coding apparatus through the network interface requests a coding value of the image to the image coding apparatus, and the image request of the image coding apparatus. The value receiver requests the digital image of the controller. Receiving and applying a value to the image modulator; and simultaneously supporting M-JPEG and H-264 video compression techniques according to the digital image request value received from the image request value receiver, and compressing the video. For each of the technologies, Client Live Monitoring mode, Movie Picture Recording mode, and Client Live Monitoring for heterogeneous network access operators, depending on network bandwidth and video storage capacity. (B) generating different digital video coding values by simultaneously varying the resolution and the moving speed of the video for the mode; and transmitting the different digital video coding values generated in the above process to the outside through the network interface. And the controller to the network The present invention provides a multi-image coding method comprising restoring a digital image signal received through an interface to a screen display image.

In addition, the control unit of the present invention, the client real-time monitoring mode, storage video recording mode and heterogeneous network connection operator according to the network bandwidth and the storage capacity of the video to the digital video coding value required by the operator of the system management main server Client digital video signal requesting unit for transmitting different video to the video request value receiving unit to generate different variable video according to the real-time monitoring mode and the digital video signal requesting unit The present invention provides a multi-image coding method comprising a digital video signal reconstruction unit for reconstructing the image into a viewable value by the operator.

In addition, the operator client real-time monitoring mode of the present invention, the video modulator, the video compression method is selected as the H-264, the resolution of the video selects 4CIF, the movement speed of the video 30fps, 20fps, The present invention provides a multi-image coding method comprising selecting one of 15 fps, 10 fps, 7 fps, 6 fps, 5 fps, 4 fps, 3 fps, 2 fps, and 1 fps.

In addition, the storage image recording mode of the present invention, the image modulator, the video compression method is selected as the M-JPEG, the resolution of the video selects one of four of CIF, 2CIF, 4CIF, VGA, The moving speed of the image provides a multiple image coding method comprising selecting one of 11, 30 fps, 20 fps, 15 fps, 10 fps, 7 fps, 6 fps, 5 fps, 4 fps, 3 fps, 2 fps, and 1 fps.

In the client real-time monitoring mode of the heterogeneous network connection operator of the present invention, the video modulator selects the video compression method as H-264, and the resolution of the video is one of four types: CIF, 2CIF, 4CIF, and VGA. And the motion speed of the video is selected from 11 of 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps. .

The present invention having the above-described problem solving means and configuration, as well as the ability to simultaneously change the resolution of the image and the moving speed of the image, as well as support two or more different video compression techniques (M-JPEG or H-264) at the same time, Due to the simultaneous transmission and use, it is possible to reflect the operator's requirements as much as possible when building the system in consideration of the interworking between various networks and the variability of video storage capacity, thereby enabling low cost to proactively cope with the changes of the video surveillance system. There is a very beneficial effect of building a highly efficient system.

1A and 1B are diagrams illustrating a configuration of a video surveillance system using a network according to the related art and an internal structure of an encoder used in the system, respectively.
2A and 2B are diagrams illustrating a configuration of a video surveillance system using a dual encoding technique according to the related art and an internal structure of an encoder used in the system.
3A and 3B are diagrams illustrating the configuration of a video surveillance system utilizing a dual codec technology according to the related art and the internal structure of an encoder used in the system.
4A to 4D are views showing the configuration of a video surveillance system to which the multi-image coding technology according to the present invention is applied, the internal structure of an encoder used in the system, and the internal structure and flowchart of the main server controller for system management, respectively.
5a to 5c is a configuration of the video surveillance system for the client real-time monitoring mode for the operator according to the multi-image coding of the present invention and the internal structure of the encoder used in the system, the internal structure and flow chart of the main server control unit for system management Each of which represents
6A to 6C are diagrams illustrating a structure of a video surveillance system for a video recording mode for storage according to the multi-image coding according to the present invention, an internal structure of an encoder used in the system, and a main server controller for system management. Respectively shown,
7a to 7c is a configuration of a video surveillance system for a client real-time monitoring mode for heterogeneous network access operator according to the multi-image coding of the present invention and the internal structure of the encoder used in the system, and the inside of the main server controller for system management A diagram showing a structure and a flowchart, respectively.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Like elements in the figures are denoted by the same reference numerals as much as possible. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted.

Image modulation by dual codec based triple encoding technology according to the present invention (hereinafter referred to as " multi-image coding ") supports and simultaneously uses up to two video compression techniques (M-JPEG and H-264) simultaneously. Based on the dual codec, the two video compression technologies are used to simultaneously change and simultaneously adjust the resolution and the moving speed of the image according to the purpose.

That is, the present invention provides a function of varying the resolution of the image and the speed of movement of the image, and the two different video compression techniques simultaneously and simultaneously, so that the encoder 100 and the main server controller 600 for system management can be used. It is provided.

The encoder 100 receives an image signal from an analog camera and converts the image signal into a digital image signal. The image modulator 101 controls a camera and controls an input / output of an alarm. The audio modulation unit 103, the network interface 104 for transmitting the digital video signal converted by the video compression technology to the remote place through the network, and the digital signal request unit 601 of the main server control unit 600 for system management And a video request value receiver 105 for receiving a digital video request value.

Here, the image request value receiving unit 105 receives a request value of an image required by the digital image signal requesting unit 601 of the main server control unit 600 for system management, and transmits the request value to the image modulating unit 102. In operation 102, a maximum of three different digital video coding values are generated based on a request value requested by the digital video signal requesting unit 601 of the main system control unit 600 for system management. 600 to digital video signal recovery unit 602.

The main server control unit 600 for system management is a digital video signal requesting unit 601 for requesting a coding value of an image to the encoder 100 and a digital video signal received through a network. The video signal recovery unit 602 is configured.

Here, the digital video signal requester 601 compares / determines the network bandwidth (speed) and the video storage capacity based on the digital video coding value required by the operator, thereby determining up to three different variable images (Client Live Monitoring for the operator. Movie Picture Recording, to transmit the client Live Monitoring for the operator connected from different networks to the video request value receiving unit 105 of the encoder 100, the digital video signal recovery unit 602 in the encoder 100 It checks and verifies whether up to three different variable digital video signals received are coded to match the values requested by the digital video signal requester 601, and restores them to an image that can be viewed by the operator. Therefore, the video monitoring operator can be provided with customized video for each system environment.

The image modulation method according to the multi-image coding of the present invention can be classified into a maximum of three modes.

First of all, the first modulation selects the video compression method as M-JPEG, and the resolution of the image is selected from four kinds of CIF, 2CIF, 4CIF, and VGA, and the moving speed of the image is 30fps, 20fps, 15fps, 10fps. Select one of 11, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps and 1fps.

In addition, second modulation selects H-264 as the video compression method, 4CIF as the resolution of video, and 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, Select any one of 11 fps.

Next, the third modulation selects the video compression method as H-264, and the resolution of the video is selected from four types of CIF, 2CIF, 4CIF, and VGA, and the moving speed of the video is 30fps, 20fps, 15fps, 10fps. Select one of 11, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps and 1fps.

Hereinafter, the multi-image coding apparatus and method according to the present invention described above will be described with reference to FIGS. 4A to 4D, and three image modulations according to the multi-image coding according to the present invention will be described with reference to FIGS. 5A to 7D. Each will be described in detail.

First, Figure 4a is a view showing the configuration of a video surveillance system applying a multi-image coding technology according to the present invention, Figure 4b is a view showing the internal structure of the encoder used in the system of Figure 4a, Figure 4c is a view of FIG. 4 is a diagram illustrating an internal structure of a main server control unit for system management, and FIG. 4D is a flowchart illustrating the interworking between the encoder and the main server control unit for system management.

Referring to FIG. 4A, the video surveillance system to which the multi-image coding technology is applied includes a plurality of surveillance analog cameras 200 and an encoder 100, the same network connection monitoring PC 301 connected to the same network, Heterogeneous network connection monitoring PC (302), system management main server 303, video storage management archive server 304, video storage storage 400 and heterogeneous network 500 connected to the heterogeneous network It is configured by.

The analog camera 200 has a function of a general surveillance camera and is installed in security vulnerable parts such as indoor / outdoor and road of a building, and is connected to the encoder 100 by a wired cable.

Here, the analog camera 200 includes both a speed dome analog camera or a box-type analog camera and a camera in which a PTZ controller is combined.

The encoder 100 converts the analog video signal, the PTZ control signal, and the audio signal of the analog camera 200 into digital signals through a plurality of video compression techniques.

In addition, the encoder 100 according to the present invention, as shown in Figure 4b, the function of varying the resolution of the image and the moving speed of the image and two different video compression techniques (M-JPEG or H-264) at the same time An image modulator 101 for receiving an image signal from the analog camera 200 and converting the image signal into a digital image signal for support and simultaneous use, and a data modulator for controlling the analog camera 200 and controlling the input / output of an alarm. 102, an audio modulator 103 for controlling a two-way audio signal, and a network interface 104 for transmitting a digital video signal converted by video compression technology to a remote place through a network.

In particular, the image modulator 101 simultaneously supports video compression techniques of M-JPEG and H-264 for multi-image coding according to the present invention, and modulates the resolution and motion speed of the image for each video compression technique. Simultaneous support.

The same network connection monitoring PC (301) is the original digital signal of the encoder 100, the system management main server 303, the image storage management archive server 304 and the encoder 100 transmitted through the same network. It provides the operator with restored video signal, camera control signal and audio signal.

The heterogeneous network 500 for heterogeneous network connection monitoring is different from the network system to which the encoder 100, the system management main server 303, and the image storage management archive server 304 belong. In order to provide the surveillance video efficiently and stably to the operator connected to the network), it is possible to connect to the heterogeneous network 500 including all network networks such as wired / wireless internet network and low bandwidth network.

The main server 303 for system management includes all the encoders 100, the image storage management archive server 304, the same network connection monitoring PC 301, and the heterogeneous network connection connected to the video surveillance system according to the present invention. The monitoring PC 302 is managed.

In addition, the system management main server 303 is a system management main server controller including a plurality of functional modules as shown in Figure 4c to manage all the equipment, such as the encoder 100 connected to the video surveillance system 600 is provided.

That is, the system management main server control unit 600 manages, for example, the quantity, state, compression method, resolution of video, speed of video movement, setup contents of each encoder, etc. of all connected encoders. Accordingly, the control unit selects and provides an image coding method of the encoder for each application in consideration of the modulation scheme (compression method, variable resolution and moving speed of the video) and triple encoding according to the request of the operator.

Here, the main server control unit 600 for system management is divided into a digital video signal requesting unit 601 and a digital video signal restoring unit 602, and the digital video signal requesting unit 601 uses the selected video coding type as the video request of the encoder. The digital image signal reconstructor 602 restores the coding value of the image transmitted through the network in the future, and compares the image coded value requested by the digital image signal requester 601 during the reconstruction process.

In the video encoding method of the triple encoding according to the present invention, first, one of M-JPEG and H-264 is selected in the video compression method, and the resolution of the image is one of four types of CIF, 2CIF, 4CIF, and VGA. Finally, the moving speed of the image is selected from 11 of 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.

The triple encoding is used in three ways: real-time monitoring of the client for the operator, video recording for storage, and real-time monitoring of the client for the heterogeneous network connection operator.

In addition, the system management main server control unit 600 is connected to the number of the video storage management archive server 304, the same network connection monitoring PC 301, heterogeneous network connection monitoring PC 302 connected to the system It manages the status, connection password, network status, setup contents of each server and PC.

The image storage management archive server 304 stores the image information collected through all the encoders 100 connected to the image surveillance system according to the present invention to the image storage storage 400, the image storage storage 400 is responsible for storing the restored surveillance image through the monitoring operating system.

The heterogeneous network 500 is not a network to which the encoder 100, the system management main server 303, and the image storage management archive server 304 belong, but different network systems, which are wired and wireless Internet networks. This includes all network networks, including low-bandwidth networks.

As described above, the multi-image coding apparatus according to the present invention provides an encoder capable of simultaneously supporting and simultaneously using two different video compression techniques (M-JPEG or H-264), and the resolution of the image and the moving speed of the image. It can be configured to be able to change together, it is possible to reflect the requirements of the operator as much as possible when building the system in consideration of the interworking between the various networks and the variability of the video storage capacity.

Hereinafter, three image modulations of the multiple image coding technique according to the present invention optimized for various environments will be described in detail with reference to FIGS. 5A to 7D.

Three image modulations of the multi-image coding technique according to the present invention are performed by the encoder 100 under the control of the main server controller 600 for system management.

First, Figure 5a is a configuration of the video surveillance system for the first modulation (hereinafter referred to as "operator's client real-time monitoring mode") according to the multi-image coding of the present invention optimized for the client Live Monitoring environment for the operator FIG. 5B is a diagram illustrating an internal structure of an encoder used in the system of FIG. 5A, FIG. 5C is an internal structure diagram of a control unit of a system management main server of FIG. 5A, and FIG. 5D is an encoder and a main server for system management. It is an interlocking flowchart of the control unit.

The operator real-time monitoring mode of FIGS. 5A-5D provides a selection of video compression techniques and variable video resolution and video speed, as described below.

Referring to FIG. 5A, a video surveillance system for executing an operator client real time monitoring mode according to the present invention includes a plurality of analog cameras 200 and an encoder 100, a PC 301 for monitoring the same network connection, and a system management main. The server 303 and the archive server 304 for image storage management are roughly configured.

The analog camera 200 has a function of a general surveillance camera and is installed in a security vulnerable part such as indoors / outdoors and roads of a building, and is connected to the encoder 100 by a wired cable.

Here, the analog camera 200 includes both a speed dome analog camera or a box-type analog camera and a camera in which a PTZ controller is combined.

The encoder 100 has a function of converting an image signal, a PTZ control signal, and an audio signal of the analog camera 200 into a digital signal through a video compression technique. In particular, as shown in Figure 5b, in the client real-time monitoring mode for the operator, the encoder 100 uses the H-264 video compression technology, the resolution of the image has a performance of 4CIF, the variable of the moving speed of the video is 30fps, Select one of 11, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.

The same network connection monitoring PC 301 restores a digital signal transmitted through a network to an original surveillance video signal, a camera control signal, and an audio signal and provides the same to an operator.

The system management main server 303 monitors all the encoders 100, the image storage management archive server 304, and the same network connection monitoring, which are connected to the video surveillance system performing the operator client real time monitoring mode shown in FIG. 5A. As shown in FIG. 5C, the PC 301 is managed through the main server controller 600 for system management including a plurality of function modules.

The main server control unit 600 for managing the system displays the quantity, state, compression method, resolution of the image, moving speed of the encoder and setup contents for each encoder, etc., of all the encoders 100 connected to the video surveillance system. Manage. Accordingly, the control unit selects and provides an image coding method of the encoder for each application in consideration of the modulation scheme (compression method, variable resolution and moving speed of the video) and triple encoding according to the request of the operator.

In addition, the system management main server controller 600 selects H-264 among M-JPEG and H-264 in the video compression method to perform the client client real-time monitoring mode, and the resolution of the image is CIF, 4CIF is selected from 4 types of 2CIF, 4CIF, and VGA, and finally, the moving speed of the video is selected from 11 of 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, and 1fps. .

The image storage management archive server 304 stores the image information collected through all the encoders 100 connected to the system to the image storage storage 400 described above.

FIG. 6A is a configuration diagram of a video surveillance system for second modulation (hereinafter, referred to as a "storage image recording mode") according to the multi-image coding of the present invention optimized for a movie picture recording environment. 6B is a diagram illustrating an internal structure of an encoder used in the system of FIG. 6A, and FIG. 6C is an internal structure diagram of a control unit of the system management main server of FIG. 6A, and FIG. 6D is an interlocking flowchart of an encoder and a main server control unit for system management. to be.

The storage video recording mode of FIGS. 6A-6D provides a selection of video compression techniques and variable video resolution and video speed, as described below.

Referring to FIG. 6A, a video surveillance system for performing a video recording mode for storage according to the present invention includes a plurality of analog cameras 200 and an encoder 100, a system management main server 303, and an image storage management archive server. 304 and the storage unit 400 for storing images.

The encoder 100 converts the video signal, the PTZ control signal, and the audio signal of the analog camera 200 into digital signals through video compression technology. In particular, as shown in Figure 6b, in the video recording mode for storage, the encoder 100 uses the video compression technology of M-JPEG, and the resolution of the video selects one of four of CIF, 2CIF, 4CIF, VGA In order to change the moving speed of the video, select one of 11, 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, and 1fps.

Since the analog camera 200 and the image storage management archive server 304 are similar to those described above, a detailed description thereof will be omitted.

The system management main server 303 monitors all the encoders 100, the image storage management archive server 304, and the same network connection monitoring, which are connected to the video surveillance system performing the operator client real time monitoring mode shown in FIG. 6A. As illustrated in FIG. 6C, the PC 301 is managed through the main server controller 600 for system management including a plurality of functional modules.

The main server control unit 600 for managing the system manages the quantity, state, compression method, resolution of the image, moving speed of the image, setup contents of each encoder, and the like, of all the encoders 100 connected to the video surveillance system. Accordingly, the control unit selects and provides an image coding method of the encoder for each application in consideration of the modulation scheme (compression method, variable resolution and moving speed of the video) and triple encoding according to the request of the operator.

In addition, the main server control unit 600 for system management selects M-JPEG among M-JPEG and H-264 in the video compression method to perform the operator client real time monitoring mode of FIGS. 6A to 6C. The resolution of the video is selected from four types of CIF, 2CIF, 4CIF, and VGA, and finally, the moving speed of the video is 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps. Select one of the branches.

The image storage storage 400 stores the surveillance image restored through a monitoring system (not shown) under the control of the image storage management archive server 304.

FIG. 7A is a diagram for a third modulation (hereinafter, referred to as "client real time monitoring mode for heterogeneous network access operators") according to the multi-image coding of the present invention optimized for a remote client live monitoring environment for heterogeneous network access operators. 7B is a diagram illustrating an internal structure of an encoder used in the system of FIG. 7A, FIG. 7C is an internal structure diagram of a control unit of the main server for system management of FIG. 7A, and FIG. It is an interlocking flowchart of the main server controller for system management.

The client real-time monitoring mode for heterogeneous network connection operators of FIGS. 7A-7D provides a selection of video compression techniques and variable video resolution and video speed, as described below.

Referring to FIG. 7A, a video surveillance system for performing a client real-time monitoring mode for heterogeneous network access operators according to the present invention includes a plurality of analog cameras 200 and an encoder 100, a PC 302 for heterogeneous network access monitoring, and a system. The main server 303 for management, the archive server 304 for video storage management, and the heterogeneous network 500 are divided into large groups.

The encoder 100 converts the video signal, the PTZ control signal, and the audio signal of the analog camera 200 into a digital signal through a video compression technique. In particular, as shown in FIG. In this mode, H-264 is used as the video compression technology. The resolution of the video can be selected from four types of CIF, 2CIF, 4CIF, and VGA, and the moving speed of the video can be changed to 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps Select one of the branches.

The heterogeneous network 500 for heterogeneous network connection monitoring is different from the network system to which the encoder 100, the system management main server 303, and the image storage management archive server 304 belong. In order to provide the surveillance video efficiently and stably to the operators belonging to the), the heterogeneous network 500 includes all network networks, such as wired and wireless Internet network, low bandwidth network.

Since the analog camera 200 and the image storage management archive server 304 are similar to those described above, a detailed description thereof will be omitted.

The main server 303 for managing the system is the same as all encoders 100, the image storage management archive server 304, and the same connected to the video surveillance system performing the client real time monitoring mode for the heterogeneous network access operator shown in FIG. 7A. As illustrated in FIG. 7C, the network connection monitoring PC 301 is managed through the main server controller 600 for system management including a plurality of function modules.

The main server control unit 600 for managing the system manages the quantity, state, compression method, resolution of the image, moving speed of the image, setup contents of each encoder, etc. of all the encoders 100 connected to the video surveillance system. Accordingly, the control unit selects and provides an image coding method of the encoder for each application in consideration of the modulation scheme (compression method, variable resolution and moving speed of the video) and triple encoding according to the request of the operator.

In addition, the system management main server controller 600 selects H-264 among M-JPEG and H-264 in the video compression method to perform the client real-time monitoring mode for the heterogeneous network access operators of FIGS. 7A to 7D. Next, the resolution of the video is selected from four types: CIF, 2CIF, 4CIF, and VGA, and finally, the moving speed of the video is 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, Choose one of 11 of 1fps.

As described above, the multi-image coding method and apparatus according to the present invention receives an analog video signal from a surveillance analog camera and converts the video signal into a digital signal. By simultaneously providing and using up to three different video resolutions and movement speeds for video compression technologies (M-JPEG and H-264), real-time monitoring and recording of video for storage by the client's client according to network bandwidth and video storage capacity It provides video surveillance system optimized for client real-time monitoring environment for heterogeneous network access operators.

Therefore, the multi-image coding method and apparatus according to the present invention can build a low-cost / high-efficiency video surveillance system that can actively cope with changes in the times of the video surveillance system.

On the other hand, while the specific examples for carrying out the invention in the context of the present invention has been described, it is a matter of course that various modifications are possible without departing from the scope of the invention.

100: Encoder
101: image modulator
102: data modulation unit
103: audio modulator
104: network interface
105: video request value receiving unit
200: analog camera
301: PC for monitoring the same network connection
302: PC for heterogeneous network connection monitoring
303: main server for system management
304: Archive server for video storage management
400: Video storage
500: heterogeneous network
600: main server controller for system management
601: a digital video signal request unit
602: digital video signal recovery unit

Claims (10)

An image modulator for receiving an image signal from an analog camera and converting it into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, an audio modulator for controlling a two-way audio signal, and a video compression technology An image coding apparatus having a network interface for transmitting a digital image signal converted into a network to a remote site through a network,
The image coding apparatus includes an image request value receiving unit which receives a digital image request value from an external device and applies it to the image modulator;
The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value, and real-time monitoring of the client for each of the video compression techniques according to network bandwidth and video storage capacity. Different digital image coding values can be changed by simultaneously changing the resolution and movement speed of the image for Live Monitoring mode, Movie Picture Recording mode, and Remote Client Live Monitoring mode for heterogeneous network connection operators. A function for transmitting to the outside via the network interface;
A main video controller for system management comprising a digital video signal requesting unit for requesting a coding value of an image to the video request value receiving unit and a digital video signal restoring unit for restoring a digital video signal received through the network interface to a screen display image; Includes;
The digital video signal requesting unit is configured to monitor the digital video coding value required by the operator of the system management main server according to the network bandwidth and the storage capacity of the video. Transmitting to the image request value receiving unit to generate different variable images according to a real time monitoring mode;
The digital video signal reconstructor checks whether different variable video signals received from the video modulator are coded to values requested by the digital video signal requester, and reconstructs them into an image viewable by the operator;
The image modulator selects the video compression method as H-264 for the operator client real-time monitoring mode, selects 4CIF as the resolution of the image, and moves the video at 30fps, 20fps, 15fps, and 10fps. , 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.
delete delete An image modulator for receiving an image signal from an analog camera and converting it into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, an audio modulator for controlling a two-way audio signal, and a video compression technology An image coding apparatus having a network interface for transmitting a digital image signal converted into a network to a remote site through a network,
The image coding apparatus includes an image request value receiving unit which receives a digital image request value from an external device and applies it to the image modulator;
The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value, and real-time monitoring of the client for each of the video compression techniques according to network bandwidth and video storage capacity. Different digital image coding values can be changed by simultaneously changing the resolution and movement speed of the image for Live Monitoring mode, Movie Picture Recording mode, and Remote Client Live Monitoring mode for heterogeneous network connection operators. A function for transmitting to the outside via the network interface;
A main video controller for system management comprising a digital video signal requesting unit for requesting a coding value of an image to the video request value receiving unit and a digital video signal restoring unit for restoring a digital video signal received through the network interface to a screen display image; Includes;
The digital video signal requesting unit is configured to monitor the digital video coding value required by the operator of the system management main server according to the network bandwidth and the storage capacity of the video. Transmitting to the image request value receiving unit to generate different variable images according to a real time monitoring mode;
The digital video signal reconstructor checks whether different variable video signals received from the video modulator are coded to values requested by the digital video signal requester, and reconstructs them into an image viewable by the operator;
The image modulator selects the video compression method as M-JPEG for the storage image recording mode, and selects one of four kinds of resolutions such as CIF, 2CIF, 4CIF, and VGA. Multi video coding device selects one of 11 speeds: 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.
An image modulator for receiving an image signal from an analog camera and converting it into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, an audio modulator for controlling a two-way audio signal, and a video compression technology An image coding apparatus having a network interface for transmitting a digital image signal converted into a network to a remote site through a network,
The image coding apparatus includes an image request value receiving unit which receives a digital image request value from an external device and applies it to the image modulator;
The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value, and real-time monitoring of the client for each of the video compression techniques according to network bandwidth and video storage capacity. Different digital image coding values can be changed by simultaneously changing the resolution and movement speed of the image for Live Monitoring mode, Movie Picture Recording mode, and Remote Client Live Monitoring mode for heterogeneous network connection operators. A function for transmitting to the outside via the network interface;
A main video controller for system management comprising a digital video signal requesting unit for requesting a coding value of an image to the video request value receiving unit and a digital video signal restoring unit for restoring a digital video signal received through the network interface to a screen display image; Includes;
The digital video signal requesting unit is configured to monitor the digital video coding value required by the operator of the system management main server according to the network bandwidth and the storage capacity of the video. Transmitting to the image request value receiving unit to generate different variable images according to a real time monitoring mode;
The digital video signal reconstructor checks whether different variable video signals received from the video modulator are coded to values requested by the digital video signal requester, and reconstructs them into an image viewable by the operator;
The image modulator selects the video compression method as H-264 for the client real-time monitoring mode for the heterogeneous network connection operator, and selects one of four kinds of resolutions of the video, such as CIF, 2CIF, 4CIF, and VGA. And the motion speed of the video is selected from 11 of 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.
An image modulator for receiving an image signal from an analog camera and converting it into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, an audio modulator for controlling a two-way audio signal, and a video compression technology A video coding method of a video coding apparatus having a network interface for transmitting a digital video signal converted into a remote site through a network, and a video request value receiving unit for receiving a digital video request value from the outside and applying the digital video request value to the video modulator.
The control unit of the system management main server managing the system including the image coding apparatus through the network interface, the digital image coding value required by the operator of the system management main server according to the network bandwidth and the storage capacity of the image The digital video signal requesting unit and the video modulating unit which transmits to the video request value receiving unit to generate different variable images according to an operator client real time monitoring mode, a storage video recording mode, and a heterogeneous network access operator client real time monitoring mode. It is composed of a digital video signal restoring unit which checks whether different variable video signals received from the digital video signal requesting unit are coded to values requested by the digital video signal requesting unit, and restores them to an image that can be viewed by the operator. Coding value Process requirements;
Receiving, by the image request value receiver of the image coding apparatus, the digital image request value of the controller and applying the digital image request value to the image modulator;
The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value received from the video request value receiver, and for each of the video compression techniques according to network bandwidth and video storage capacity. By simultaneously changing the video resolution and movement speed for the Client Live Monitoring mode for the Operator, Movie Picture Recording mode and the Remote Client Live Monitoring Mode for heterogeneous network access. Generating different digital image coding values;
Transmitting, by the image modulator, different digital image coding values generated in the process to the outside through the network interface; And
Restoring, by the controller, the digital video signal received through the network interface to a screen display image;
In the client real-time monitoring mode for the operator, the video modulator selects the video compression method as H-264, the video resolution is 4CIF, and the moving speeds of the video are 30 fps, 20 fps, 15 fps, 10 fps, Multi-image coding method that selects one of 11, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.
delete delete An image modulator for receiving an image signal from an analog camera and converting it into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, an audio modulator for controlling a two-way audio signal, and a video compression technology A video coding method of a video coding apparatus having a network interface for transmitting a digital video signal converted into a remote site through a network, and a video request value receiving unit for receiving a digital video request value from the outside and applying the digital video request value to the video modulator.
The control unit of the system management main server managing the system including the image coding apparatus through the network interface, the digital image coding value required by the operator of the system management main server according to the network bandwidth and the storage capacity of the image The digital video signal requesting unit and the video modulating unit which transmits to the video request value receiving unit to generate different variable images according to an operator client real time monitoring mode, a storage video recording mode, and a heterogeneous network access operator client real time monitoring mode. It is composed of a digital video signal restoring unit which checks whether different variable video signals received from the digital video signal requesting unit are coded to values requested by the digital video signal requesting unit, and restores them to an image that can be viewed by the operator. Coding value Process requirements;
Receiving, by the image request value receiver of the image coding apparatus, the digital image request value of the controller and applying the digital image request value to the image modulator;
The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value received from the video request value receiver, and for each of the video compression techniques according to network bandwidth and video storage capacity. By simultaneously changing the video resolution and movement speed for the Client Live Monitoring mode for the Operator, Movie Picture Recording mode and the Remote Client Live Monitoring Mode for heterogeneous network access. Generating different digital image coding values;
Transmitting, by the image modulator, different digital image coding values generated in the process to the outside through the network interface; And
Restoring, by the controller, the digital video signal received through the network interface to a screen display image;
In the video recording mode for storage, the video modulator selects the video compression method as M-JPEG, and the resolution of the video selects one of four types of CIF, 2CIF, 4CIF, and VGA, and the motion of the video. Multi-image coding method that selects one of 11 speeds of 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps and 1fps.
An image modulator for receiving an image signal from an analog camera and converting it into a digital image signal, a data modulator for controlling the analog camera and controlling an input / output of an alarm, an audio modulator for controlling a two-way audio signal, and a video compression technology A video coding method of a video coding apparatus having a network interface for transmitting a digital video signal converted into a remote site through a network, and a video request value receiving unit for receiving a digital video request value from the outside and applying the digital video request value to the video modulator.
The control unit of the system management main server managing the system including the image coding apparatus through the network interface, the digital image coding value required by the operator of the system management main server according to the network bandwidth and the storage capacity of the image The digital video signal requesting unit and the video modulating unit which transmits to the video request value receiving unit to generate different variable images according to an operator client real time monitoring mode, a storage video recording mode, and a heterogeneous network access operator client real time monitoring mode. It is composed of a digital video signal restoring unit which checks whether different variable video signals received from the digital video signal requesting unit are coded to values requested by the digital video signal requesting unit, and restores them to an image that can be viewed by the operator. Coding value Process requirements;
Receiving, by the image request value receiver of the image coding apparatus, the digital image request value of the controller and applying the digital image request value to the image modulator;
The image modulator simultaneously supports M-JPEG and H-264 video compression techniques according to the digital video request value received from the video request value receiver, and for each of the video compression techniques according to network bandwidth and video storage capacity. By simultaneously changing the video resolution and movement speed for the Client Live Monitoring mode for the Operator, Movie Picture Recording mode and the Remote Client Live Monitoring Mode for heterogeneous network access. Generating different digital image coding values;
Transmitting, by the image modulator, different digital image coding values generated in the process to the outside through the network interface; And
Restoring, by the controller, the digital video signal received through the network interface to a screen display image;
In the client real-time monitoring mode for the heterogeneous network connection operator, the video modulator selects the video compression method as H-264, and the resolution of the video selects one of four types such as CIF, 2CIF, 4CIF, and VGA. The moving speed of the image is a multi-image coding method of selecting any one of 11, 30fps, 20fps, 15fps, 10fps, 7fps, 6fps, 5fps, 4fps, 3fps, 2fps, 1fps.

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