KR20160017214A - Multi-Screen System, Picture Partition Server and Picture Processing Method thereof, Divided Picture Terminal and Multi-Screen Control Method thereof - Google Patents

Abstract

Disclosed are a multi-screen system, an image division server and an image division method thereof, a divided image terminal, and a method for controlling a multi-screen. According to the present invention, the multi-screen system comprises: an image division server for dividing a screen of an original image into a plurality of layouts, and processing the divided images corresponding to each layout based on the original image; and a plurality of divided image terminals corresponding to each layout divided by the image division server, receiving the divided images corresponding to each layout from the image division server, setting a play start time point of each divided images based on a standby time on a mutual network, and controlling a plurality of displays, configuring the multi-screen, to be synchronized so as to play the divided images based on the set play start time point. Herein, each of the divided image terminals measures the standby time on the network with respect to a master in a group of the divided image terminals, and controls each display to play the divided images based on the measured standby time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-screen system, an image division server and an image division method thereof, a multi-screen system, and a multi-

The present invention relates to a multi-screen system, an image segmentation server, an image segmentation method, a segmented image terminal and a multi-screen control method, and more particularly, A multi-screen system, an image segmentation server and its image segmentation method, which can reduce the cost of constructing a multi-screen system, And a multi-screen control method.

Multi-screen is a method in which a plurality of displays are arranged in the form of a rectangle in the horizontal and vertical directions, different images are displayed on the respective displays, or one image is displayed in an enlarged form on the entire display .

At this time, a form in which different images are displayed on each display of the multi-screens is a separate problem because a plurality of displays are arranged in the form of a quadrangle and the images are displayed on the respective displays, A separate device for controlling the image displayed on the multi-screen should be provided.

Generally, the multi-screen image control device controls the overall size of the horizontal and vertical images, which is composed of a plurality of displays, into one multi-screen, and displays the video signals on the converted multi-screen.

However, since the multi-screen image control device displays the original image in an enlarged manner according to the ratio of the horizontal and vertical lengths of the plurality of displays, the image quality of the entire image displayed on the multi- have.

In order to solve such a problem, an image processing apparatus corresponding to each of a plurality of displays constituting a multi-screen is provided, and each image processing apparatus processes an image of a corresponding region in an original image and displays the processed image on a display. However, since such a multi-screen system requires a plurality of image processing apparatuses for image processing of a specific region in the original image, the cost of constructing the multi-screen system is greatly increased, The speed of the image amplification process may be different, so that the entire image displayed on the multi-screen may not be synchronized and may be distorted and displayed.

Published Japanese Patent Application No. 10-2006-0023832 (published on Mar. 15, 2006)

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to prevent deterioration of the image quality of a divided image and to distort the entire image of the multi- Screen system, an image segmentation server, and an image segmentation method, a segmented image terminal, and a multi-screen control method capable of reducing the cost of constructing a multi-screen system.

According to an aspect of the present invention, there is provided a multi-screen system including: a screen division unit that divides a screen of an original image into a plurality of layouts, divides the divided images corresponding to the respective layouts into image segments server; And a layout control unit that receives the divided images corresponding to the respective layouts from the image division server and sets the playback start point of each of the divided images based on the mutual latency on the network And a plurality of divided video terminals for controlling the plurality of displays constituting the multi-screen to synchronize and reproduce the divided videos based on the set playback start time. Each of the divided video terminals measures a waiting time on the network based on a master in a group of a plurality of divided video terminals and controls each of the displays to reproduce the divided video based on the measured waiting time.

An image dividing server dividing a screen of an original image into a plurality of layouts and image-processing the divided images corresponding to the respective layouts based on the original images; A plurality of divided images corresponding to the respective layouts divided by the image division server and receiving divided images corresponding to the respective layouts from the image division server, A plurality of divided video terminals for setting a video playback starting point; And a plurality of displays arranged on the basis of the layout divided by the image division server and reproducing the divided images corresponding to the reproduction start time set by each of the divided video terminals. Herein, each of the divided video terminals measures the waiting time on the basis of the master in the group of the plurality of divided video terminals and controls the display so that each of the displays synchronizes and reproduces the divided video based on the measured waiting time. The playback start time of the divided video is set.

According to another aspect of the present invention, there is provided an image dividing server for dividing a screen of an original image into a plurality of layouts and dividing a divided image corresponding to each layout into a layout image Installment; A terminal setting unit for setting a divided video terminal corresponding to each layout divided by the layout division unit; And a divided video transmission unit for transmitting the divided video of the layout corresponding to each of the divided video terminals set by the terminal setting unit.

The layout dividing unit divides the original image into layouts of integer x integer.

The terminal setting unit sets the divided video terminal corresponding to the position of the original image of each layout divided by the layout division unit.

According to an aspect of the present invention, there is provided a divided video terminal for receiving divided videos corresponding to respective layouts divided by an image division server, A waiting time measuring unit for measuring a waiting time; A start point setting unit for setting a playback start point of a divided image received from the image segmentation server based on a waiting time measured by the waiting time measuring unit; And a video reproduction controller for controlling the divided video to be reproduced on the corresponding display based on the reproduction start time set by the starting time setting unit.

The divided video terminal may include an information transmission unit for transmitting the information of the waiting time measured by the waiting time measurement unit to the master in the group; And a reproduction command receiver for receiving a reproduction command from the master in correspondence with the information of the waiting time transmitted to the master by the information transmission unit. In this case, the start point setting unit sets the point in time at which the play command is received by the play command receiver to the playback start point.

The above-described divided video terminal may further include an information receiver configured to receive a waiting time information from the remaining slaves of the plurality of divided video terminals when the divided video terminal is set as a master among the plurality of divided video terminals. In this case, the start time setting unit sets the playback start time for each of them based on the waiting time measured by the waiting time measuring unit and the waiting time information received from each slave through the information receiving unit.

The image playback control unit controls so that the screen set on each display corresponding to the playback start time set by the start time setting unit is played back.

According to an aspect of the present invention, there is provided an image segmentation method performed by an image segmentation server, the method comprising: dividing a screen of an original image into a plurality of layouts; Processing the divided image based on the original image; Setting a divided video terminal corresponding to each layout divided by the layout dividing step; And transmitting a divided image of a layout corresponding to each of the divided video terminals set by the divided video terminal setting step; And a control unit.

The layout splitting step divides the original image into layouts of integer x integer.

The divided video terminal setting step sets the divided video terminal corresponding to the position of the original image of each layout divided by the layout dividing step.

According to an aspect of the present invention, there is provided a multi-screen control method comprising: receiving multi-screen images corresponding to respective layouts from an image segmentation server, A method, comprising: measuring latency on a network; Setting a playback start point of the divided image received from the image segmentation server based on the waiting time measured by the waiting time measuring step; And controlling the divided images to be reproduced on the corresponding display based on the reproduction start time set by the reproduction start time setting step.

The above-mentioned multi-screen control method includes the steps of: transmitting information on the waiting time measured by the waiting time measuring step to the master in the group; And receiving the reproduction command from the master in correspondence with the information of the waiting time transmitted to the master by the transmission of the waiting time information. In this case, the reproduction start time setting step sets the time point at which the reproduction command is received by the reproduction command reception step as the reproduction start time.

The above-mentioned multi-screen control method may further include receiving waiting time information from the remaining slaves among the plurality of divided video terminals when the master is set as a master among the plurality of divided video terminals. In this case, the reproduction start time setting step sets the reproduction start time for each of them based on the information of the waiting time measured by the waiting time measuring step and the waiting time information received from each slave through the waiting time information receiving step.

The divided-image playback control step controls to play back the screen set in each display corresponding to the playback start time set by the playback start time setting step.

According to the present invention, since the original image is divided into a plurality of layouts and the divided images corresponding to the respective layouts are displayed on the display, the entire image of the multi-screen is improved.

In addition, according to the present invention, since the image segmentation server uniformly divides the original image and performs image processing on the divided image, the image is displayed on the corresponding display, It is possible to prevent the entire image from being distorted.

In addition, according to the present invention, since a divided video terminal corresponding to each display need only remove the difference in latency on the network occurring in each divided video, a complicated hardware configuration is not necessary, The total cost to be constructed can be greatly reduced.

1 is a schematic view of a multi-screen system according to an embodiment of the present invention.
2 is a diagram showing an example in which an original image is divided into a plurality of layouts.
3 is a diagram illustrating an example of setting a divided video terminal corresponding to each layout.
4 is a diagram illustrating an example in which each of the divided video terminals outputs divided images on a display constituting a multi-screen.
5 is a diagram schematically showing the configuration of an image segmentation server according to an embodiment of the present invention.
6 is a diagram schematically showing the configuration of a divided video terminal according to an embodiment of the present invention.
7 is a flowchart illustrating an image segmentation method according to an embodiment of the present invention.
8 is a flowchart illustrating a multi-screen control method according to an embodiment of the present invention.

Hereinafter, a multi-screen system, an image segmentation server, an image segmentation method, a segmented image terminal, and a multi-screen control method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a multi-screen system according to an embodiment of the present invention.

Referring to FIG. 1, a multi-screen system according to an embodiment of the present invention includes an image segmentation server 100, a plurality of segmented image terminals 200, and a plurality of displays 20. Here, the image segmentation server 100 and each of the segmented image terminals 200 are connected to each other through the network 10, and the segmented image terminal 200 and the display 20 are connected to each other one-to-one. Further, the plurality of displays 20 are arranged in the horizontal and vertical directions to constitute a multi-screen. In this case, it is preferable that the plurality of displays 200 are arranged closely to each other.

The image dividing server 100 divides the screen of the original image into a plurality of layouts, and implements the divided images corresponding to the respective layouts on the basis of the original image. At this time, the image segmentation server 100 divides the screen of the original image into a plurality of layouts in which the ratio of the width to the length is integer x integer, and the divided images corresponding to the respective layouts can be processed in proportion to the number of layouts have. In this case, the image segmentation server 100 preferably divides the original image so that the size of each of the divided layouts is the same. For example, as shown in FIG. 2, the image segmentation server 100 divides the size of the original image into four layouts by dividing the size of the original image into two in the horizontal and vertical directions, and divides the divided image corresponding to each layout into four It can process image by doubling. At this time, the image segmentation server 100 divides the original image into a plurality of layouts based on the number of pixels in the horizontal x vertical direction, divides the divided images corresponding to the respective layouts into a size proportional to the original image can do. For example, when the number of pixels of the original image is 400 x 300 in the horizontal x vertical direction, the image segmentation server 100 bisects the original image in the horizontal x vertical direction and divides the image into four layouts each having 200 x 150 pixels And image processing can be performed four times so that a divided image corresponding to each layout is 400 x 300 pixels. That is, the image segmentation server 100 may image the colors represented by one pixel in the divided images so that they are displayed in the horizontal and vertical directions, respectively, twice. The number of divisions of the layout and the image processing rates of the divided images described herein are only examples for the sake of understanding, and are not limited to the numbers described.

The plurality of divided video terminals 200 correspond to a plurality of layouts divided by the video dividing server 100 on a one-to-one basis, and receive divided videos corresponding to the respective layouts from the video dividing server 100. For example, as shown in FIG. 3, when the original image is divided into four layouts, the plurality of divided video terminals 200 are provided with four layouts corresponding one-to-one to the divided layouts of the original video, And receives the divided images corresponding to the respective layouts from the server 100 via the network 10. [

At this time, since each of the plurality of divided video terminals 200 receives the divided video from the video segmentation server 100, a time difference may occur between the divided video terminals 200 on the network. The time difference on the network of the divided images received by each of the divided video terminals 200 is called a network waiting time. Such network latency may cause the image displayed on the multi-screen to be distorted.

In order to solve such a problem, the plurality of divided video terminals 200 sets a certain one of the divided video terminals 200 in the group as a master and the remaining divided video terminals 200 in the corresponding group Set as slave (slave). In this case, a method of setting an arbitrary segmented video terminal 200 as a master among the plurality of segmented video terminals 200 may use a known communication technology for setting a master among a plurality of communication terminals. Here, .

At this time, the plurality of divided video terminals 200 can measure the waiting time on the network based on the divided video terminal 200 set as the master. For example, the slave-divided video terminal and the master-divided video terminal periodically measure the transmission time on the network to the video-segmentation server 100, and compare the transmission time on the network between the master-divided video terminal and the slave- , The network latency time of each slave divided video terminal can be calculated based on the master video terminal. However, the waiting time measurement method on the network described here is only an example for the sake of understanding, and the network waiting time can be calculated using various methods.

The plurality of divided video terminals 200 sets the playback start time of each divided video considering the network latency for the different layouts based on an arbitrary layout. At this time, the plurality of divided video terminals 200 can set the reproduction start time of each divided video considering the network latency time for the other slaves on the basis of the layout corresponding to the master. In this case, the plurality of divided video terminals 200 sets the respective divided video playback time points so that the corresponding displays 20 are synchronized with each other to reproduce the divided video images. For example, when the divided video terminal 200 that has first received the divided video corresponding to each layout from the video server 100 among the plurality of divided video terminals 200 is set as the master and the slave 1, slave 2 , And the slave 3 are set to 0.01 second, 0.03 second, and 0.02 second, respectively, the master sets the time after 0.03 seconds from the point of time when the divided image is received, and the slave 1 sets the time The slave 3 sets the time at which the divided image is received to the playback start time and the slave 3 sets the time after 0.01 second from the time when the divided image is received It can be set as the starting point. However, the setting method of the playback start time described here is an example for helping understanding, and is not limited to the described method. In addition, the plurality of divided video terminals 200 may set the playback start time differently depending on whether the divided video data is received from the video segmentation server 100 as a stream or a packet.

On the other hand, the display 20 is arranged based on the layout divided by the image dividing server 100 to constitute a multi-screen. That is, the display 20 is arranged in the same manner as the layout form divided by the image dividing server 100 to constitute a multi-screen. For example, if the layout divided by the image segmentation server 100 is of the form of 2 x 2, the display 20 is arranged in the form of 2 x 2 horizontally and vertically to constitute a multi-screen. In this case, each of the divided video terminals 200 is matched with the display 20 in a one-to-one correspondence with the layout position of the original video, and each of the displays 20 synchronizes based on the reproduction start point, . Here, the meaning of reproducing the divided images in synchronization means that each of the displays 20 equally adjusts the playback time of the divided images. For example, as shown in FIG. 4, each of the divided video terminals 200 is one-to-one matched with the display 20 corresponding to the layouts divided into the 2 x 2 form with respect to the original video, And controls the divided images to be reproduced in synchronization with each display 20 based on the playback start time.

Thus, since the multi-screen reproduces an image in accordance with the reproduction time of the divided images of the respective displays, the image can be reproduced without distortion in the entire image.

In addition, since the multi-screens reproduce the divided images subjected to the image processing in proportion to the size of the original image, the quality of the enlarged whole image is not lowered at all.

In addition, since each of the divided video terminals can measure the waiting time between them by a software method and set the playback start time accordingly, it is possible to reduce the cost of constructing the multi screen .

5 is a diagram schematically showing the configuration of an image segmentation server according to an embodiment of the present invention. The image segmentation server according to the embodiment of the present invention can be used as the image segmentation server 100 of the multi-screen system shown in FIG.

5, an image segmentation server 100 according to an exemplary embodiment of the present invention may include a layout division unit 110, a terminal setting unit 120, and a divided image transmission unit 130.

The layout division unit 110 divides the screen of the original image into a plurality of layouts, and processes the divided images corresponding to the respective layouts based on the original image. At this time, the layout division unit 110 divides the screen of the original image into a plurality of layouts in which the ratio of the width to the length is integer x integer, and divides the divided images corresponding to the respective layouts into image processing proportional to the number of layouts. have. In this case, it is preferable that the layout division unit 110 divides the original image so that the size of each of the divided layouts is the same. The layout division unit 110 divides the layout image into a plurality of layouts based on the number of pixels in the horizontal x vertical direction of the original image, and divides the divided images corresponding to the respective layouts into image sizes proportional to the original image can do.

The terminal setting unit 120 sets the divided video terminal 200 corresponding to each layout divided by the layout division unit 110. [ At this time, the plurality of displays 20 are arranged based on the arrangement form of the layout to constitute a multi-screen, and each display 20 is matched one-to-one with the divided video terminal 200. In this case, the terminal setting unit 120 sets the divided video terminal 200 in accordance with the layout position of the original image. For example, when the position of the layout divided for the original image is a position of 1 x 2, the terminal setting unit 120 sets 1 x 2 of the plurality of displays 20 constituting the multi- And sets the divided video terminal 200 corresponding to the display at the position of " 1 "

The divided video transmission unit 130 transmits the divided video of the corresponding layout to each of the divided video terminals 200 set by the terminal setting unit 120. [ For example, in the divided video transmission unit 130, a divided video terminal 200 corresponding to a 1 x 1 display among a plurality of displays constituting a multi-screen is divided into a layout corresponding to a position of 1 x 1 And transmits the image.

6 is a diagram schematically showing the configuration of a divided video terminal according to an embodiment of the present invention. The divided video terminal according to the embodiment of the present invention can be used as the divided video terminal 200 of the multi-screen system shown in FIG. At this time, the divided video terminal 200 corresponds one-to-one to each of the plurality of displays 20 constituting the multi-screen, receives the divided video from the video dividing server 100, and controls the corresponding display 20 to reproduce .

6, a divided video terminal 200 according to an exemplary embodiment of the present invention includes a waiting time measuring unit 210, a starting point setting unit 220, an image reproducing control unit 230, an information transmitting unit 240, A playback command receiving unit 250 and an information receiving unit 260. [

The waiting time measuring unit 210 measures the waiting time on the network. At this time, the waiting time measuring unit 210 periodically measures the transmission time between the video segmentation server 100 and the segmented video terminal 200 as the waiting time on the network, and transmits the measured transmission time to the segmented video terminal 200 ) To compute the latency in the group.

The start point setting unit 220 sets the playback start point of the divided image received from the image segmentation server 100 based on the waiting time on the network measured by the waiting time measuring unit 210. [ At this time, after the divided video terminal 200 receives the divided video from the divided video server 100, the starting point setting unit 220 determines whether or not the divided video is to be played back on the corresponding display 20 after a certain time It can be set to the playback start time. In this case, the start time setting unit 220 synchronizes each of the divided video terminals 200 in the group at the same time point on the basis of the wait time measured by the wait time measuring unit 210, The playback start point is set so that the image can be played back.

The image reproduction control unit 230 controls the divided image to be reproduced on the corresponding display 20 based on the reproduction start time set by the start time setting unit 220. [ At this time, after receiving the divided image from the image dividing server 100, the image reproduction control unit 230 controls the divided image to be reproduced on the corresponding display 20 after the reproduction start time set by the starting point setting unit 220 can do. At this time, the image playback control unit 230 can control the playback of the basic screen set in each display 20 corresponding to the playback start time set by the start time setting unit 220. [

The information transmitting unit 240 may transmit the information of the waiting time on the network measured by the waiting time measuring unit 210 to the divided video terminal 200 set as the master in the group. That is, the information transmission unit 240 transmits the information of the waiting time on the network measured by the waiting time measuring unit 210 to the divided video terminal 200 set as the master. In this case, the divided video terminal 200 set as the master compares the information of the waiting time on the network received from the other divided video terminals 200 in the group with the information of the waiting time on the own network, The waiting time in the group for the divided video terminals 200 can be calculated.

The reproduction command receiving unit 250 can receive the reproduction command from the master in response to the information of the waiting time on the network transmitted to the master by the information transmitting unit 240. [ That is, if the master calculates the waiting time in the group for each slave based on the information of the waiting time on the network transmitted to the master by the information transferring unit 240, the master determines the waiting time for each slave based on the waiting time in the group for each slave And transmits a reproduction command to each slave, and the reproduction command receiving unit 250 can receive a reproduction command from the master based on the waiting time in the group for itself. In this case, the start point setting unit 220 may set the point of time at which the play command is received through the play command receiver 250 as the play start point, and control the divided images to be reproduced on the display 20. However, the present invention is not limited to this, and the start point setting unit 220 may be configured to set a playback start point for itself based on a playback command received from the master.

The information receiving unit 260 receives the information on the waiting time on the network from the other divided video terminals in the group when the video receiving terminal 260 itself is set as the master among the plurality of divided video terminals in the group constituting the multi-screen. In this case, the start time setting unit 220 sets the start time for each of the start and stop times based on the waiting time measured by the waiting time measuring unit 210 and the waiting time information received from each slave through the information receiving unit 260 You can set the viewpoint. At this time, the start time setting unit 220 calculates a difference in wait time between each of the other divided video terminals in the group, with the wait time on its own network as a reference (0), and based on the calculated difference in wait time And the playback start time for each can be set.

7 is a flowchart illustrating an image segmentation method according to an embodiment of the present invention. The image dividing method according to the embodiment of the present invention can be performed by the image dividing server 100 shown in FIG.

1 to 7, the image segmentation server 100 divides a screen of the original image into a plurality of layouts, and implements the divided images corresponding to the respective layouts on the basis of the original image (S110). At this time, the image segmentation server 100 divides the screen of the original image into a plurality of layouts in which the ratio of the width to the length is integer x integer, and the divided images corresponding to the respective layouts can be processed in proportion to the number of layouts have. In this case, the image segmentation server 100 may divide the original image so that the size of each of the divided layouts is the same. In addition, the image segmentation server 100 divides the original image into a plurality of layouts based on the number of pixels in the horizontal x-longitudinal direction, divides the divided images corresponding to the respective layouts into a size proportional to the original image can do.

The image segmentation server 100 sets the segmented image terminal 200 corresponding to each layout to be divided (S120). At this time, the plurality of displays 20 are arranged based on the arrangement form of the layout to constitute a multi-screen, and each display 20 is matched one-to-one with the divided video terminal 200. In this case, the image segmentation server 100 sets the segmented image terminal 200 in correspondence with the layout position of the original image.

The image segmentation server 100 transmits a segmented image of a layout corresponding to each of the segmented image terminals 200 (S130). For example, in the image segmentation server 100, a segmented video terminal 200 corresponding to a 1 x 1 display among a plurality of displays constituting a multi-screen is divided into a layout of a layout corresponding to a position of 1 x 1 And transmits the image.

8 is a flowchart illustrating a multi-screen control method according to an embodiment of the present invention. The multi-screen control method according to the embodiment of the present invention can be performed by the divided video terminal 200 shown in FIG.

Referring to FIGS. 1 to 6 and 8, the divided video terminal 200 determines whether it is a master or a slave in a group of a plurality of divided video terminals corresponding to the display 20 constituting the multi-screen (S210). At this time, a known method can be used as a method of setting a master or a slave, and a detailed description thereof will be omitted here.

Each of the divided video terminals 200 periodically measures the waiting time on the network (S220). At this time, each of the divided video terminals 200 measures a transmission time for the image segmentation server 100 and sets the measured transmission time as a waiting time on the network.

The divided video terminal 200 set as the master receives the information of the waiting time on each network from the other divided video terminals in the group (S230).

The divided video terminal 200 set as the master compares the information of the waiting time on the network received from each of the divided video terminals 200 with the information of the waiting time of the own video terminal 200 to set the playback start time for each of the divided video terminals 200 (S240).

The divided video terminal 200 set as the master controls the divided video to be reproduced on the corresponding display 20 based on the playback start time set for itself (S250). At this time, the divided video terminal 200 set as a master can transmit a playback command to each of the divided video terminals based on the playback start time set for each of the other divided video terminals in the group. In this case, the divided video terminal 200 set as the master is instructed to reproduce the divided video by each of the other divided video terminals 200 at the same time as when the divided video is reproduced on the display 20 corresponding to the divided video terminal 200 send.

Meanwhile, the divided video terminal 200 set as a slave transmits information of the waiting time on the network periodically to the master (S260).

In addition, the divided video terminal 200 set as the slave receives the reproduction command from the master in response to the information of the waiting time on the network transmitted to the master (S270).

Each of the divided video terminals 200 corresponding to the slave sets the reception timing of the reproduction command to the playback start time and controls the corresponding display 20 so that the divided video is reproduced on the corresponding display 20 S280). At this time, the split video terminal 200 corresponding to each slave receives the reproduction command from the master at the same time point.

In this way, the divided video terminal synchronizes the time of reproducing the divided video, thereby preventing distortion of the entire video reproduced on the multi-screen.

The above-described image segmentation method or multi-screen control method may be implemented by a computer program, and may be executed by an electronic device such as a server, a computer, or a terminal. The computer program for executing the above-described image segmentation method or multi-screen control method may be recorded on a recording medium such as a memory, a USB, a CD, or the like, and read by a computer.

Claims (17)

An image dividing server for dividing a screen of the original image into a plurality of layouts and image-processing the divided images corresponding to the respective layouts based on the original image; And
And a control unit for receiving the divided images corresponding to the respective layouts from the image dividing server and storing playback start times of the respective divided videos based on the mutual latency on the network A plurality of divided video terminals for controlling the plurality of displays constituting the multi-screen to synchronize and reproduce the divided videos based on the set playback start time;
/ RTI >
Each of the divided video terminals measures a waiting time on a network based on a master in a group of the plurality of divided video terminals and controls each of the displays to reproduce the divided video based on the measured waiting time Wherein the multi-screen system comprises: A layout dividing unit dividing a screen of the original image into a plurality of layouts and performing image processing on the divided images corresponding to the respective layouts based on the original image;
A terminal setting unit for setting a divided video terminal corresponding to each layout divided by the layout division unit; And
A divided video transmission unit for transmitting a divided video of a layout corresponding to each of the divided video terminals set by the terminal setting unit;
Wherein the server comprises: 3. The method of claim 2,
Wherein the layout dividing unit comprises:
And divides the original image into a constant x number of layouts. The method of claim 3,
The terminal setting unit,
And sets the divided video terminal in correspondence with a position of each of the layouts divided by the layout division unit with respect to the original video. A divided video terminal which is divided into a plurality of divided videos and receives divided videos corresponding to the respective layouts divided by the video segmentation server,
A waiting time measuring unit for measuring a waiting time on the network;
A start point setting unit for setting a playback start point of a divided image received from the image segmentation server based on a waiting time measured by the waiting time measuring unit; And
An image reproduction control unit for controlling the divided image to be reproduced on a corresponding display based on a reproduction start time set by the starting point setting unit;
Wherein the video terminal comprises: 6. The method of claim 5,
An information transmission unit for transmitting the information of the waiting time measured by the waiting time measuring unit to the master in the group; And
A playback command receiver for receiving a playback command from the master in response to information of a waiting time transmitted to the master by the information transmitter;
Further comprising:
Wherein the start point setting unit sets a point in time at which a play command is received by the play command receiver as a play start point. 6. The method of claim 5,
An information receiver for receiving waiting time information from the remaining slaves among the plurality of divided video terminals when the master terminal is set as a master among the plurality of divided video terminals;
Further comprising:
Wherein the start point setting unit sets the playback start time for each of the waiting time measured by the waiting time measuring unit and the waiting time information received from each slave through the information receiving unit Video terminal. 6. The method of claim 5,
Wherein the image reproduction control unit comprises:
And controls the display unit to reproduce a screen set in each of the displays corresponding to the reproduction start time set by the start point setting unit. An image segmentation method performed by an image segmentation server,
Dividing a screen of the original image into a plurality of layouts, and image-processing the divided images corresponding to the respective layouts based on the original image;
Setting a divided video terminal corresponding to each layout divided by the layout division step; And
Transmitting a divided image of a layout corresponding to each of the divided video terminals set by the divided video terminal setting step;
Wherein the image segmentation method comprises: 10. The method of claim 9,
Wherein the layout-
And dividing the original image into integer x number of layouts. 11. The method of claim 10,
The method of claim 1,
Wherein the divided video terminal is set in correspondence with a position of the original image in each layout divided by the layout division step. A multi-screen control method by a plurality of divided video terminals, each of which constitutes a multi-screen by receiving divided images corresponding to respective layouts from an image division server,
Measuring latency on the network;
Setting a playback start point of a divided image received from the image segmentation server based on a waiting time measured by the waiting time measuring step; And
Controlling a divided image to be reproduced on a corresponding display based on a reproduction start time set by the reproduction start time setting step;
Screen control method. 13. The method of claim 12,
Transmitting information of the waiting time measured by the waiting time measurement step to a master in the group; And
Receiving a playback command from the master in response to the latency information transmitted to the master by the latency time information transmission step;
Further comprising:
Wherein the playback start time setting step sets a time point at which a playback command is received by the playback command reception step as a playback start time. 13. The method of claim 12,
Receiving standby time information from the remaining slaves among the plurality of divided video terminals when the master terminal is set as a master among the plurality of divided video terminals;
Further comprising:
The playback start time setting step may set a playback start time for each of the plurality of slaves based on the waiting time measured by the waiting time measuring step and the waiting time information received from each slave through the waiting time information receiving step Wherein the multi-screen control method comprises the steps of: 13. The method of claim 12,
The method of claim 1,
Wherein the control unit controls so that the screen set in each of the displays corresponding to the playback start time set by the playback start time setting step is played back. A computer program for executing the image segmentation method or the multi-screen control method according to any one of claims 9 to 15. A recording medium readable by a computer for recording a computer program for executing the image segmentation method or the multi-screen control method according to any one of claims 9 to 15.

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