KR20100130385A - Synchronous control system and synchronous control method method for screening stereo-scopic image - Google Patents

Abstract

PURPOSE: A synchronous control system and a synchronous control method for screening a stereoscopic image are provided to accurately synchronize left and right eye images, which are stored at two local terminals, through a control server. CONSTITUTION: A first local terminal(310) outputs a left eyed image, and a second local terminal(350) outputs a right eyed image. A control server(600) controls the synchronization of the first and second local terminals. If the first and second stereoscopic image selection signals of the first and second local terminals are identical to each other and the first and second resolution selection signals are identical to each other, the control server periodically transmits a sync control signal to the first and second local terminals.

Description

Synchronous control system and synchronous control method method for screening stereo-scopic image}

The present invention relates to stereoscopic image screening, and more specifically, to a stereoscopic image screening for performing accurate synchronization matching by synchronization through a control server and resetting mutual synchronization control signals by two local terminals. And a synchronous control method.

3D stereoscopic image technology has various application fields such as information communication, broadcasting, medical, education and training, military, game, animation, virtual reality, CAD, and is the core of next generation 3D stereoscopic multimedia communication It is an underlying technology.

The three-dimensional feeling that a person feels depends on the degree of change in the thickness of the lens depending on the position of the object to be observed, the angle difference between both eyes and the object, the position and shape difference between the left and right eyes, the parallax caused by the movement of the object, and other psychology And a combination of the effects of memory and the like.

The binocular disparity, which occurs 6 to 7 cm apart from the left and right eyes, is the most important factor of the three-dimensional effect.

Due to binocular disparity, the object is viewed at a certain angle, and the difference results in different images coming into the left and right eyes, and when these two images are transmitted to the brain through the retina, the brain converges these information 3D stereoscopic images can be felt.

Conventionally, there is a method of separating and selecting a two-dimensional image using a color filter having a complementary color relationship using special glasses.

For example, if a left and right image is displayed in red and blue on a white paper and a red-blue filter is used, only the part drawn in blue is shown in the red glasses, and only the part drawn in red is shown in the blue glasses. By using this, the left and right images are displayed in red and blue, respectively, and color filter glasses corresponding to the stereoscopic images can be felt. However, this method has a disadvantage in that objects cannot be displayed in natural colors, so it is not used much at present.

In addition, a stereoscopic image display apparatus using a conventional polarizing filter separates left and right eye images using a light shielding effect by a combination of polarizing elements. Projectors equipped with orthogonal polarization filters project the left and right images onto the projection screen and view the independent images of each of the left and right through glasses with polarizing filters to feel a three-dimensional effect.

In this way, synchronization of two projectors for displaying left and right images is a problem. Moreover, as images for projecting through a projector are gradually used in ultra-high resolution images requiring large amounts of data, image processing apparatus for graphicizing and outputting left and right eye images by graphic processing capability or by a control device Synchronization inconsistency occurs due to an error caused by the transmission and reception of the synchronization control signal.

Accordingly, in the technical field, there is a demand for technology development to enable more accurate synchronization regardless of the resolution of left and right eye images in stereoscopic image screening.

SUMMARY OF THE INVENTION The present invention has been made in an effort to improve the above-described problem. It aims to provide.

According to an embodiment of the present invention, the left and right eye images are stored in advance in two local terminals, and the control server only performs synchronization with the local terminal, thereby projecting the left and right eye images onto the existing one local terminal onto the projection screen. It is an object of the present invention to provide a synchronous control system and a synchronous control method for displaying a stereoscopic image that can reduce the load of a local terminal compared to the conventional method.

According to an embodiment of the present invention, the synchronization control system and the synchronization for stereoscopic image screening to reduce the error timing of the synchronization control signal by resetting the synchronization control signal by checking the coincidence point of the mutual synchronization control signal to the two local terminals It is an object to provide a control method.

According to an embodiment of the present invention, it is an object of the present invention to provide a synchronous control system and a synchronous control method capable of displaying stereoscopic images in a panoramic format by synchronizing and displaying stereoscopic images using two or more local terminals.

However, the objects of the present invention are not limited to the above mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In accordance with another aspect of the present invention, there is provided a synchronization control system for displaying a stereoscopic image, including: a first local terminal for outputting a left eye image; A second local terminal for outputting a right eye image; And first and second stereoscopic image selection signals respectively received from the first and second local terminals coincide to control synchronization of the first local terminal and the second local terminal, and selecting first and second resolutions. A control server periodically transmitting a synchronization control signal to the first local terminal and the second local terminal when the signals match; It includes.

According to an aspect of the present invention, there is provided a synchronization control system for displaying a stereoscopic image, comprising: a first projector connected to the first local terminal to project the left eye image output from the first local terminal onto a projection screen; And a second projector connected to the second local terminal to project the right eye image output from the second local terminal onto the projection screen. It may further include.

The first local terminal generates a first timestamp including first reception time information using the synchronous control signal received from the control server, and transmits the first timestamp to the second local terminal. When the second timestamp including the second reception time information and the first reception time information coincide, the left eye image is projected to the projection screen through the first projector according to the synchronization control signal to the second terminal. The stereoscopic image may be screened by a combination with the right eye image output by the right eye image.

When the first reception time information and the second reception time information are inconsistent, the first local terminal divides the inconsistent time by two to perform the operation at the time when the synchronization control signal is received. The left eye image may be projected to the projection screen through the first projector by adding or subtracting a predetermined time.

The first local terminal may include the left eye image according to time information obtained by adding the calculated time to the time when the synchronization control signal is received when the first reception time information is faster than the second reception time information. Can be projected onto the projection screen through the first projector.

The first local terminal may include the left eye image based on time information obtained by subtracting the calculated time from the time when the synchronization control signal is received when the first reception time information is slower than the second reception time information. Can be projected onto the projection screen through the first projector.

The second local terminal generates a second timestamp including second reception time information using the synchronous control signal received from the control server, and transmits the second timestamp to the first local terminal, and received from the first local terminal. When the first timestamp including the first reception time information and the second reception time information coincide, the right eye image is projected to the projection screen through the second projector according to the synchronization control signal to the first terminal. The stereoscopic image may be displayed by a combination with the left eye image output by the left eye image.

When the second receiving time information and the first receiving time information are inconsistent, the second local terminal divides the inconsistent time by two and performs the operation at the time when the synchronization control signal is received. The left eye image may be projected to the projection screen through the second projector by adding or subtracting the set time.

The second local terminal, when the second reception time information is time information faster than the first reception time information, the right eye image according to time information obtained by adding the calculated time to the time when the synchronization control signal is received. Can be projected onto the projection screen through the second projector.

The second local terminal, when the second reception time information is slower time information than the first reception time information, the right eye image according to time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. Can be projected onto the projection screen through the second projector.

According to an embodiment of the present disclosure, a control server of a synchronous control system for displaying a stereoscopic image may include: a first transceiver configured to perform data transmission / reception; And receiving a first stereoscopic image selection signal and a first resolution selection signal from a first local terminal for outputting a left eye image, and selecting a second stereoscopic image selection signal and a second resolution from a second local terminal for outputting a right eye image. Receiving a signal and periodically transmitting a synchronization signal to the first local terminal and the second local terminal when the first and second stereoscopic image selection signals and the first and second resolution selection signals coincide with each other. A first controller to control the first transceiver; It may include.

The first control unit may include: a first VNC module configured to transmit a VNC access request signal to the first local terminal and the second local terminal to receive a VNC access response signal, and to connect a data link for control; The first stereoscopic image selection signal, the first resolution selection request signal, and the second stereoscopic image selection are transmitted to the first local terminal and the second local terminal through the data link, respectively. A first image processing module configured to receive a signal and a second resolution selection request signal, respectively; And a synchronization processing module for periodically transmitting a synchronization signal to the first local terminal and the second local terminal when the first and second stereoscopic image selection signals and the first and second resolution selection signals coincide. It may include.

According to an embodiment of the present invention, a local terminal of a synchronous control system for displaying a stereoscopic image, a second transceiver for performing data transmission and reception; And generating, by the control server, a first timestamp including first reception time information using the synchronous control signal transmitted according to the determination that the stereoscopic image selection signals of the two local terminals match and the resolution selection signals match. 2, an image of any one of images separated by both eyes when the first reception time information included in the second timestamp received from the second local terminal and the second reception time information coincide with each other, and are transmitted to the local terminal. A second control unit configured to control the projection to the projection screen using the first projector so that the stereoscopic image is displayed together with the other image projected by the second local terminal; And a storage unit for storing any one image. It includes.

The second control unit includes: a second VNC module receiving a VNC access request signal from the control server and returning a VNC response signal to connect a data link for control; A second image processing module receiving an image selection request signal from the control server through the data link and returning the image selection signal, and receiving a resolution selection request signal from the control server and returning the resolution selection signal; And generating a first time stamp including first reception time information using the received time by receiving the synchronization signal from the control server, and including second reception time information transmitted from the second local terminal. After receiving the second time stamp, when the first reception time information matches the second reception time information, projecting the one image to the projection screen through the first projector according to the synchronization control signal; Operation and synchronization module; .

The operation and synchronization module, when the first reception time information and the second reception time information are inconsistent, divides the inconsistent time by two, and the first reception time information is determined by the second reception time information. When the time information is faster than the reception time information, the first reception time information is slower time information than the second reception time information according to the time information obtained by adding the calculated time to the time when the synchronization control signal is received. In this case, the image may be projected to the projection screen through the first projector according to the time information obtained by subtracting the calculated time from the time when the synchronization control signal is received.

In the synchronous control method for displaying a stereoscopic image according to an embodiment of the present invention, the control server transmits a VNC access request signal to the first and second local terminals, respectively, and receives a VNC access response signal to connect a data link for control. A first step of making; A second step of the control server transmitting a video selection request signal to first and second local terminals through the data link and returning first and second video selection signals, respectively; The control server transmits a resolution selection request signal to the first and second local terminals to receive the first resolution selection signal and the second resolution selection signal, respectively, if the received first and second image selection signals match. Third step; And when the received first and second resolution selection signals match, the control server periodically transmits a synchronization control signal to the first and second local terminals so that the first and second local terminals transmit the synchronization control signal. A fourth step of outputting the left and right eye images to the projection screen at the same time through the first and second projectors connected to each other to display the stereoscopic images; It includes.

In accordance with another aspect of the present invention, there is provided a synchronization control method for displaying a stereoscopic image, the method comprising: a first step of receiving first and second synchronization signals from a control server by a local terminal; Generating, by the first local terminal and the second local terminal, a second timestamp including first and second receiving time information, respectively, according to the synchronization control signal; A third step of transmitting, by the first local terminal, the first timestamp to the second local terminal, and wherein the second local terminal transmits the second timestamp to the first local terminal; And the first local terminal and the second local terminal, respectively, when the first reception time information and the second reception time information coincide with each other, first and second left and right eye images stored therein according to the synchronization control signal. A fourth step of displaying a stereoscopic image by projecting onto a projection screen using a second projector; It includes.

In the fourth step, when the first and second reception time information are inconsistent, the first and second local terminals divide the inconsistent time between the first and second reception time information to 2, respectively. Outputting a right eye image by adding or subtracting the calculated time to a time at which the synchronization control signal is received after performing the calculation; It may further include.

According to another aspect of the present invention, there is provided a synchronization control method for displaying a stereoscopic image, the method comprising: a first step of a first local terminal receiving a synchronization control signal from a control server; Generating, by the first local terminal, a first time stamp each including first reception time information according to the synchronization control signal; The first local terminal transmits the first timestamp to the second local terminal, and the second timestamp includes second reception time information according to the reception of the synchronization control signal generated by the second local terminal. Receiving a third step; And when the first reception time information and the second reception time information coincide with each other, the first local terminal projects a projection screen by using a first projector connected to the image according to the synchronization control signal. A fourth step of outputting the stereoscopic image by combining the image output by the second local terminal with another image of the binocular image; It includes.

In the fourth step, when the first and second reception time information are inconsistent, the first local terminal divides the inconsistent time between the first and second reception time information to 2 by performing a calculation. Outputting any one image by adding or subtracting the calculated time to the time when the synchronization control signal is received; It may contain more.

According to another embodiment of the present invention, a synchronization control system for displaying a stereoscopic image includes a plurality of local terminals for storing and outputting a plurality of divided images in advance; And periodically synchronizing a synchronous control signal to the plurality of local terminals when the plurality of stereoscopic image selection signals received from the plurality of local terminals and the plurality of resolution selection signals coincide with each other to perform synchronization with the plurality of local terminals. A control server for transmitting and controlling the plurality of local terminals to project the divided image on the projection screen in a panorama format through a plurality of projectors respectively connected to the plurality of local terminals; It may include.

The synchronous control system and the synchronous control method for displaying a stereoscopic image according to the present invention provide an effect of enabling more accurate synchronization of left and right eye images stored in two local terminals through a control server.

In addition, according to the present invention, the left and right eye images are stored in advance in two local terminals, and the control server only performs synchronization for the two local terminals, thereby performing left and right eye image projection and synchronization by the existing local terminals. Compared to the conventional method, it provides the effect of reducing the load on the local terminal.

In addition, the present invention provides an effect of reducing the error timing of the synchronization control signal by resetting the synchronization control signal by confirming the coincidence of the mutual synchronization control signal with the two local terminals.

In addition, according to the present invention, it provides an effect that can reduce the load of the local terminal compared to the conventional method of projecting the left and right eye images to the screen of one local terminal.

As well as. SUMMARY OF THE INVENTION An object of the present invention is to provide a synchronous control system and a synchronous control method capable of screening stereoscopic images in a panoramic format by synchronizing and displaying stereoscopic images using two or more local terminals and a plurality of projectors.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

In the present specification, when one component 'transmits' data or a signal to another component, any one component may directly transmit data or a signal to another component, and at least one other component. This means that data or a signal can be transmitted to other components through the APC.

1 is a block diagram showing the configuration of a synchronization control system 1 for displaying a stereoscopic image according to an embodiment of the present invention. Referring to FIG. 1, the synchronous control system 1 for displaying a stereoscopic image includes a projection screen 100, a projector 200, a local terminal 300, an IP router 400, a communication network 500, and a control server 600. ).

The projection screen 100 is a device for displaying an image projected from the projector 200 and is formed of a flat surface of silver (silver). On the other hand, in the present invention, the projection screen 100 is not an essential component and can be replaced with a wall or the like having a white flat surface. The projection screen 100 may perform a function of enlarging a corresponding image when projecting an image signal output from the projector 200.

The projector 200 refers to a device that connects an external image providing device (eg, PC, DVD, VCR, camcorder) such as the local terminal 300 to project a graphic screen or image onto the projection screen 100. In the present invention, two projectors are required for the left eye and right eye images. In one embodiment, the projector connected to the first local terminal 310 to the first projector 210 to display the left eye image of the two projectors 200, and the second local terminal 350 to display the right eye image The connected projector is referred to as the second projector 250.

The local terminal 300 transmits and receives data with the control server 600 through the IP sharer 400. Local terminal 300 is a broad concept including a wired terminal or a wireless terminal, a personal computer (PC), an IP television (Internet Protocol Television), a notebook-sized personal computer (PDA), a smartphone, an IMT- 2000 phone, Global System for Mobile Communication (GSM) phone, General Packet Radio Service (GPRS) phone, WCDMA phone, UMTS phone, MBS phone, etc., and different terminals, control server 600 and other systems It can provide a function to perform signal and data transmission and reception. The one for connecting the first projector 210 of the local terminal 300 is called the second local terminal 350 for connecting the first local terminal 310 and the second projector 250.

After receiving the synchronous control signal from the control server 600, the first local terminal 310 generates a first timestamp including the first reception time information using the synchronous control signal and transmits it to the second local terminal 350. do. The second local terminal 350 also generates a second timestamp including the second reception time information using the synchronization control signal and transmits the second timestamp to the first local terminal 310.

When the first reception time information and the second reception time information coincide with each other, the first local terminal 310 projects the left eye image stored in advance according to the synchronization control signal to the projection screen 100 through the first projector 210. . In this case, the second local terminal 350 also projects the pre-stored right eye image to the projection screen 100 through the second projector 250 according to the synchronization control signal.

Meanwhile, when the first reception time information and the second reception time information are inconsistent, the first local terminal 310 and the second local terminal 350 divide the inconsistent time into two, respectively. . The left eye image is output to the first projector 210 according to the time information obtained by subtracting the time calculated from the time when the synchronization control signal is received, thereby projecting the projection screen 100 through the first projector 210.

 Meanwhile, when the first reception time information is slower time information than the second reception time information, the first local terminal 310 removes the left eye image according to the time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. By outputting to the first projector 210, it is projected to the projection screen 100 through the first projector 210.

Similarly, when the second reception time information is time information faster than the first occasional time information, the second local terminal 350 performs a right eye according to the time information obtained by subtracting the time calculated from the time when the synchronization control signal is received. By outputting an image to the second projector 250, the image is projected onto the projection screen 100 through the second projector 250. Meanwhile, when the second reception time information is slower than the first reception time information, the second local terminal 350 removes the right eye image according to the time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. By outputting to the 2 projector 250, it is projected to the projection screen 100 through the second projector 250.

In another embodiment, the first projector 210 and the first local terminal 310 are one component of the first projector phone, and the second projector 250 and the second local terminal 350 are one component. It may be formed of a second projector phone.

The IP sharer 400 allows a plurality of network devices to share and use one high-speed Internet line provided from an Internet Service Provider (ISP). The IP sharer 400 may use a network address translator (hereinafter, referred to as “NAT”). The IP sharer 400 serves to allow the first and second local terminals 310 and 350 to receive the data received from the control server 600 via the communication network 500.

The communication network 500 is a high-speed network of a large communication network capable of large-capacity, long-distance voice and data services, and may be a next-generation wired and wireless network for providing Internet or high-speed multimedia services. When the communication network 500 is a mobile communication network, it may be a synchronous mobile communication network or an asynchronous mobile communication network. An example of an asynchronous mobile communication network is a communication network of a wideband code division multiple access (WCDMA) scheme. In this case, although not shown in the figure, the mobile communication network may include a Radio Network Controller (RNC). Meanwhile, although the WCDMA network is taken as an example, it may be an IP network based on a next generation communication network such as 3G LTE network, 4G network, or other IP. The communication network 500 serves to transfer signals and data between the local terminal 300 connected to the IP sharer 400, the control server 600, and other systems.

The control server 600 is a server for controlling the first local terminal 310 and the second local terminal 350. The control server 600 receives the first image selection signal and the first resolution selection signal according to the transmission of the image selection request signal and the resolution selection request signal to the first local terminal 310.

At the same time, the control server 600 receives the second image selection signal and the second resolution selection signal according to the transmission of the image selection request signal and the resolution selection request signal to the second local terminal 350.

The control server 600 synchronizes with the first local terminal 310 and the second local terminal 330 when the received first and second stereoscopic image selection signals match and the first and second resolution selection signals match. Transmit control signal periodically.

Hereinafter, a detailed description of each component will be described with reference to FIGS. 2 to 5.

2 is a block diagram showing the configuration of the control server 600 of FIG. 1 and 2, the control server 600 may include a first input unit 610, a second transceiver 630, a first controller 650, and a database 670.

The first input unit 610 is a Virtural Network Computing access request button (hereinafter, referred to as a 'VNC access request button', A), an image selection request button (B), a resolution selection request button (C), and a synchronization signal transmission button (D). The keypad may include one of a keypad and a touch pad including a plurality of input keys.

The VNC access request button A is an input key for transmitting a command command to transmit the VNC access request signal to the first and second local terminals 310 and 330 through the IP router 400. When the user selects the VNC access request button A, a VNC access request signal is generated and transmitted to the first control unit 630.

After the data link is connected to the first and second local terminals 310 and 330 by the VNC access request signal, the image selection request button B is connected to the first and second local terminals 310 through the IP sharer 400. 330 is an input key for transmitting a command command to select a stereoscopic image. When the user selects the image selection request button B, an image selection request signal is generated and transmitted to the first controller 630.

After the first and second video selection signals are received from the first and second local terminals 310 and 330 according to the video selection request signal, the resolution selection request button C is connected to the first and second video signals through the IP router 400. An input key for transmitting a command command to select a resolution to the second local terminals 310 and 330. When the user selects the resolution selection request button C, a resolution selection request signal is generated and transmitted to the first control unit 650.

After the first and second image selection signals received from the first and second local terminals 310 and 330 are received according to the resolution selection request signal, the synchronization signal transmission button D is connected to the first and second local terminals. When the stereoscopic image selection signal received from 310 and 330 and the resolution selection signal all match, transmitting the synchronization signal periodically transmitted to the first and second local terminals 310 and 330 through the IP sharer 400 for the first time. Is the input key. When the user selects the synchronization signal transmission button (D), a synchronization signal is generated and transmitted to the first controller 650.

On the other hand, it may further include a play button (E), the pause button (F), the stop button (G), the VNC access stop button (H), the VNC access stop button (I).

After the data link is connected to the first and second local terminals 310 and 330 by the VNC access request signal, the play button E is connected to the first and second local terminals 310 and 330 through the IP router 400. This is an input key for transmitting a command command to transmit a request signal for reproducing the left and right eye images together with the synchronization control signal previously stored in the database 670. When the user selects the play button E, a play request signal is generated and transmitted to the first controller 630.

After the play request signal is transmitted to the first and second local terminals 310 and 330 by the play request signal, the pause button F is connected to the first and second local terminals 310 through the IP sharer 400. 330 is an input key for transmitting a command command to transmit a request signal for suspending playback of left and right eye images. When the user selects the suspend button F, a suspend request signal is generated and transmitted to the first controller 630. When the user reselects the pause button F, a pause reproduction signal is generated and transmitted to the first control unit 630, which is a signal for replaying the image after the suspension, and the suspension request signal and the suspension reproduction signal. Can be generated repeatedly.

After the play request signal, the pause request signal, or the pause play signal are transmitted to the first and second local terminals 310 and 330, the stop button G is connected to the first and second routers through the IP router 400. It is an input key for transmitting a command command to transmit a request signal to stop the reproduction of the left and right eye images to the local terminal (310, 330). When the user selects the stop button g, a stop request signal is generated and transmitted to the first controller 630.

After the data link is connected to the first and second local terminals 310 and 330 by the VNC access request signal, the VNC access stop button I is connected to the first and second local terminals 310 through the IP sharer 400. An input key for transmitting a command command to release the data link for control to 330. When the user selects the VNC access stop button I, a VNC access stop signal is generated and transmitted to the first controller 630.

Here, the VNC access request signal, the image selection request signal, the resolution selection request signal, and the synchronization control signal, as well as the reproduction request signal, the suspension request signal, the interruption request signal, and the VNC access interruption signal, are determined by the user of the control server 600. The signal may be generated by pressing or touching the keypad or the touch pad.

The first transceiver 630 transmits and receives data with the first and second local terminals 310 and 330 through the communication network 500. The first transceiver 630 performs data transmission / reception through the data link set by the VNC access request signal and the VNC access response signal with the first and second local terminals 310 and 330 through the communication network 500. That is, the first transceiver 630 receives the data received from the first and second local terminals 310 and 330 connected through the data link, and transmits the data to the first controller 650 and, if necessary, the first controller. The control signal may be transmitted to the first and second local terminals 310 and 330 under the control of 650.

The first control unit 650 transmits a VNC access request signal, an image selection request signal, and a resolution selection request signal to the first local terminal 310 and the second local terminal 330, and the VNC access request signal and the image selection request signal. And VNC access response signals, first and second stereoscopic image selection signals, and first and second resolution selection signals, respectively, from the first local terminal 310 and the second local terminal 330 according to the resolution selection request signal. The first transceiver 630 is controlled to perform the control.

The first controller 650 not only receives the first and second stereoscopic image selection signals. When the first and second resolution selection signals coincide, the synchronization signal is periodically transmitted to the first local terminal 310 and the second local terminal 330.

In addition, the first control unit 650 transmits a play request signal, a pause request signal, a pause play signal, a stop request signal, and a VNC access stop signal to the first local terminal 310 and the second local terminal 330. The first transceiver 630 is controlled to perform the control.

The database 670 receives and stores the display time and the synchronization period of the right eye image and the left eye image stored in the first local terminal 310 and the second local terminal 330 in advance, and stores the synchronization signal data according to the input synchronization period. Save it.

Also, the database 670 may match the first stereoscopic image selection signal and the second stereoscopic image selection signal of the first local terminal 310 and the second local terminal 330 according to the control of the first controller 650. Whether or not the first resolution selection signal and the second resolution selection signal match each other can be stored. In the present specification, the database may mean a functional structural combination of software and hardware that stores information corresponding to each database. The DB may be implemented as at least one table, and may further include a separate Database Management System (DBMS) for searching, storing, and managing information stored in the database. In addition, it may be implemented in various ways such as a linked-list, a tree, a relational DB, and includes all data storage media and data structures capable of storing information corresponding to the DB.

3 is a block diagram illustrating a configuration of the first control unit 650 of FIG. 2. 1 to 3, the controller 650 includes a first VNC module 651, a first image processing module 653, and a synchronization processing module 655. Meanwhile, throughout the specification, a module may mean a functional and structural combination of hardware for performing the technical idea of the present invention and software for driving the hardware. For example, a module may mean a logical unit of a predetermined code and a hardware resource for performing the predetermined code, and means a code that is not necessarily physically connected or does not mean a kind of hardware. It can be easily inferred by the average expert in the art.

The first VNC module 651 transmits a VNC access request signal to the first local terminal 310 and the second local terminal 330, and according to the VNC access request signal, the first local terminal 310 and the second local terminal. Each of the VNC access response signals is received from 330 to control the first transceiver 630 to connect a data link for control.

In addition, the first VNC module 651 connects the first transceiver 630 to transmit the VNC access stop signal to the first local terminal 310 and the second local terminal 330 after the data link for control is connected. To control.

The first image processing module 653 transmits an image selection request signal to the first local terminal 310 or the second local terminal 330, and according to the image selection request signal, the first local terminal 310 and the second local terminal. The first transceiver 630 controls the first stereoscopic image selection signal and the second stereoscopic image selection signal from the terminal 330.

The first image processing module 653 determines whether the received first stereoscopic image selection signal and the second stereoscopic image selection signal are the same, and if not, the first image processing module 653 returns the image selection request signal to the first and second local terminals 310. The operation of controlling the first transceiver 630 to be transmitted to 330 may be repeated until the first and second resolution selection signals coincide.

The first image processing module 653 may transmit a resolution selection request signal to the first local terminal 310 and the second local terminal 330 when the first and second stereoscopic image selection signals match. 630 is controlled.

In addition, the first image processing module 653 may receive the first resolution selection signal and the second resolution selection signal from the first local terminal 310 and the second local terminal 330 according to the resolution selection request signal. The transceiver 630 is controlled.

The first image processing module 653 determines whether the received first resolution selection signal and the second resolution selection signal are the same, and if not, the first image processing module 653 returns the resolution selection request signals to the first and second local terminals 310 and 330. The operation of controlling the first transceiver 630 to be transmitted to may be repeated until the first and second resolution selection signals coincide.

In addition, the first image processing module 651 may control the first transceiver 630 to transmit a playback request signal, a pause request signal, and a pause playback signal.

The synchronization processing module 655 periodically transmits a synchronization control signal to the first local terminal 310 and the second local terminal 330 when the first and second resolution selection signals coincide with each other. And the first transceiver 630 to synchronize the left eye image and the right eye image projected by the second local terminal 330.

4 is a block diagram illustrating a configuration of the first local terminal 310 of FIG. 1. 1 to 4, the first local terminal 310 may include a second input unit 311, a second transceiver 313, a second controller 315, an output interface 317, and a storage unit 319. It may include. For convenience of description, the first local terminal 310 of the local terminal 300 will be described as a reference, but the second local terminal 350 has the same structure and function.

The second input unit 311 may be formed of one of a keypad and a touch pad including a plurality of input keys such as a VNC response input button J, an image selection input button K, a resolution selection input button L, and the like.

The VNC response input button J is an input key for the first local terminal 310 to input a response according to the VNC access request signal received through the IP router 400. When the user inputs a response through the VNC response input button J, a VNC response signal is generated and transmitted to the second control unit 315.

The image selection input button K is an input key for selecting a stereoscopic image for output by the first local terminal 310 according to the image selection request signal received through the IP sharer 400. When the user selects a stereoscopic image through the image selection input button K, an image selection signal is generated and transmitted to the second control unit 315.

The resolution selection input button L is an input key for selecting a resolution for the first local terminal 310 to output according to the stereoscopic image selection signal received through the IP router 400. When the user selects the resolution through the resolution selection input button L, a resolution selection signal is generated and transmitted to the second control unit 315.

Here, the VNC response signal, the image selection signal, and the resolution selection signal may be signals generated by pressing or touching the keypad or the touch pad by the user of the first local terminal 310.

The second transceiver 313 performs data transmission and reception with the control server 600 through the communication network 300. The second transceiver 313 performs data transmission / reception via the data link established by the control server 600 and the VNC access request signal and the VNC access response signal through the communication network 300. The second transceiver 313 receives the control signal received from the control server 600 connected through the data link and transmits it to the second controller 315, and if necessary, responds to the control of the second controller 315. It may be transmitted to the control server 600.

The second control unit 315 receives the VNC access request signal, the image selection request signal, and the resolution selection request signal from the control server 600, and receives the VNC access response signal, the first stereoscopic image selection signal, and the first resolution selection signal. Each of the second transceiver 313 is controlled to transmit to the control server 600.

The second control unit 315 transmits / receives a second signal to periodically receive a synchronization signal when it is determined by the control server 600 that the first and second resolution selection signals as well as the first and second resolution selection signals match. The unit 313 is controlled.

Thereafter, the second controller 315 generates a first timestamp including the reception time information using the synchronous control signal received from the control server 600, and transmits the first timestamp to the second local terminal 350 and the second local terminal. Receives the second timestamp generated by the 350 and receives the first reception time information included in the first timestamp and the second reception included in the second timestamp generated by the received second local terminal 350. Determine whether the time information matches.

The second controller 315 projects the left eye image onto the screen 100 through the first projector 210 connected to its output interface 317 according to the synchronization control signal received by the second controller 315 when the reception time information is identical. . On the other hand, if the reception time information is inconsistent, the second control unit 315 divides the inconsistent time by 2, and then adds or subtracts the calculated time to the time when the synchronization control signal is received. The image is output to the first projector 210 connected to the output interface 317.

In addition, the second controller 315 controls the second transceiver 313 to receive a play request signal, a pause request signal, a stop request signal, a pause play signal, and a VNC access stop signal from the control server 600. .

In more detail, the second control unit 315 is a control server included in the playback request signal to the projection screen 100 using the first projector 210 connected to its output interface 317 according to the received playback request signal. Project according to the synchronization control signal previously stored in the database 670 of (600).

The second controller 315 temporarily stops the left eye image projected onto the projection screen 100 using the first projector 210 connected to its output interface 317 according to the received suspension request signal. On the other hand, when the pause control signal is received, the second controller 31 projects the left eye image after the stopped point to the projection screen 100 using the first projector 210.

The second control unit 315 stops the left eye image projected onto the projection screen 100 using the first projector 210 connected to its output interface 317 according to the received stop request signal.

The second controller 315 controls the second transceiver 313 to release the data link for control by the control server 600 according to the received VNC access stop signal.

The output interface 317 connects with the first projector 210 and transmits and receives data with the connected first projector 210. For example, the input / output interface 317 may be a USB interface. That is, the input / output interface 317 is an interface for transmitting a left eye image to the first projector 210 when the USB terminal provided by the first projector 210 according to the USB standard is connected under the control of the second controller 315. To provide.

The storage unit 319 receives and displays a display time of the right eye image and the left eye image stored in the first local terminal 310 and the second local terminal 330 in advance. The storage unit 317 may store first and second time stamps generated by the first local terminal 310 and the second local terminal 350 under the control of the second control unit 315.

The storage unit 319 is a non-volatile memory (NVM). Even though power is not supplied, the storage unit 319 maintains and does not delete stored data. The storage unit 319 is a flash memory, a magnetic random access memory (MRAM), or a PRAM ( Phase-change Random Access Memory (PRAM), Ferroelectric RAM (FRAM), and the like.

FIG. 5 is a block diagram illustrating a configuration of the second control unit 315 of FIG. 4. 1 to 5, the second control unit 315 includes a second VNC module 315a, a second image processing module 315b, and a calculation and synchronization module 315c.

The second VNC module 315a controls the second transceiver 31 to receive the VNC access request signal from the control server 600. The second VNC module 315a transmits the VNC response signal generated by the input by the user according to the VNC access request signal to the control server 600 to connect the data link for control to the second transceiver 313. To control.

In addition, the second VNC module 315a controls the second transceiver 31 to receive the VNC access stop signal from the control server 600. The second VNC module 315a controls the second transceiver 313 to release the data link for control by the control server 600.

The second image processing module 315b controls the second transceiver 313 to receive an image selection request signal from the control server 600. The second image processing module 315b controls the second transceiver 313 to transmit the first image selection signal generated by the input by the user to the control server 600 according to the image selection request signal.

The second image processing module 315b controls the second transceiver 313 to receive the resolution selection request signal from the control server 600. The second image processing module 315b controls the second transceiver 313 to transmit the first resolution selection signal generated by the user input to the control server 600 according to the resolution selection request signal.

In addition, the second image processing module 315b controls the second transceiver 313 to receive a play request signal from the control server 600. The second image processing module 315b forcibly projects the left eye image onto the projection screen 100 irrespective of the synchronization control signal by using the first projector 210 connected to its output interface 317 according to the reproduction request signal. To control.

The second image processing module 315b controls the second transceiver 313 to receive the suspension request signal from the control server 600. The second image processing module 315b controls to temporarily stop the left eye image projected onto the projection screen 100 using the first projector 210 connected to its output interface 317 according to the suspend request signal. . Subsequently, when the pause playback signal is received, the second controller 31 controls to reproject the left eye image after the stopped point to the projection screen 100 using the first projector 210. Meanwhile, the pause request signal and the pause reproduction signal may be repeatedly received.

The second image processing module 315b controls the second transceiver 313 to receive the stop request signal from the control server 600. The second image processing module 315b stops the left eye image projected onto the projection screen 100 using the first projector 210 connected to its output interface 317 according to the stop request signal.

If the reception time information is identical, the operation and synchronization module 315c may transmit the left eye image to the projection screen 100 using the first projector 210 connected through its output interface 317 according to the synchronization signal received by the operation and synchronization module 315c. Output

The calculation and synchronization module 315c controls the second transceiver 313 to receive the synchronization signal from the control server 600. The calculation and synchronization module 315c generates a first time stamp including the first reception time information by using the received synchronization signal.

The calculation and synchronization module 315c transmits the generated first time stamp to another local terminal (second local terminal 350) connected through the IP router 400, and generated by the second local terminal 350. The second transceiver 313 is controlled to receive the second time stamp.

The operation and synchronization module 315c may include the first reception time information included in the first time stamp generated by the calculation and synchronization module 315c and the second reception time information included in the second time stamp generated by the second local terminal 350. Judge whether or not.

If the reception time information is identical, the operation and synchronization module 315c may transmit the left eye image to the projection screen 100 using the first projector 210 connected through its output interface 317 according to the synchronization signal received by the operation and synchronization module 315c. Output

On the other hand, when the reception time information is inconsistent, the operation and synchronization module 315c divides the inconsistent time by 2 and outputs a left eye image in consideration of the time calculated in the synchronization signal.

More specifically, the operation and synchronization module 315c may include the left eye image according to the time information obtained by adding the calculated time to the time when the synchronization control signal is received when the first reception time information is faster than the second reception time information. Is projected onto the projection screen 100 through the first projector 210. On the other hand, when the first reception time information is slower than the second reception time information, the operation and synchronization module 315c performs a left eye image according to the time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. Projected to the projection screen 100 through the first projector 210.

Thereafter, the calculation and synchronization module 315c determines whether the output of the left eye image is completed. The calculation and synchronization module 315c stops outputting the corresponding left eye image when the output is completed. On the other hand, when the output is not completed, the operation and synchronization module 315c synchronizes with the second local terminal 350 according to the generation of the first time stamp according to the synchronization control signal received through the second transceiver 313. Run until the output is complete.

6 is a flowchart illustrating a synchronization control method for displaying a stereoscopic image according to an exemplary embodiment of the present invention. 1 to 6, the control server 600 transmits a VNC access request signal to the IP router 400 (S601).

The IP sharer 400 transmits the received VNC access request signal to the first local terminal 310 and the second local terminal 330, respectively (S603 and S605).

The first local terminal 310 and the second local terminal 330 transmit the VNC access response signal to the control server 600, respectively (S607 and S609).

The control server 600 transmits an image selection request signal to the IP router 400 (S611).

The IP sharer 400 transmits the received video selection request signal to the first local terminal 310 and the second local terminal 330, respectively (S613 and S615).

The first local terminal 310 and the second local terminal 330 transmit the first image selection signal and the second image selection signal to the control server 600, respectively (S617 and S619).

The control server 600 determines whether the received first and second image selection signals match (S621).

If the result of the determination is inconsistent, the process returns to step S611 and the control server 600 transmits an image selection request signal to the IP sharer 400 and repeats steps S611 to S621.

On the other hand, if the first and second image selection signal matched as a result of the determination, the control server 600 transmits a resolution selection request signal to the IP router 400 (S623).

The IP sharer 400 transmits the received resolution selection request signal to the first local terminal 310 and the second local terminal 330, respectively (S625 and S627).

The first local terminal 310 and the second local terminal 330 transmit the first resolution selection signal and the second resolution selection signal to the control server 600, respectively (S629 and S631).

The control server 600 determines whether the received first and second resolution selection signals match (S633).

If the result of the determination is inconsistent, the process returns to step S623 and the control server 600 transmits the resolution selection request to the IP sharer 400 and repeats steps S623 to S631.

On the other hand, if the first and second resolution selection signal match, the control server 600 transmits the synchronization signal to the IP router 400 (S635).

The IP sharer 400 multiplexes the received synchronization signal into a first synchronization control signal and a second synchronization control signal, which are signals for the first local terminal 310 and the second local terminal 330, and thus the first local signal. The terminal 310 transmits to the second local terminal 330, respectively (S637 and S639).

The first local terminal 310 receives the first synchronization control signal and generates a first time stamp including the first reception time information according to the received time (S641).

The first local terminal 310 transmits the first timestamp generated in step S641 to the second local terminal 330 (S643).

Simultaneously with step S641, the second local terminal 330 receives the second synchronization control signal and generates a second timestamp including the second reception time information according to the received time (S645).

Simultaneously with step S643, the second local terminal 330 also transmits the second timestamp generated in step S645 to the first local terminal 310 (S647).

Simultaneously with steps S643 and S647, the first local terminal 310 generates a first timestamp generated by itself and a second time generated by the second local terminal 330 received in step S647. It is determined whether the first reception time information and the second reception time information included in the stamp match (S649).

If it is determined that the first and second reception time information match, the first local terminal 310 uses the first projector 210 connected with the first left eye image according to the first synchronization control signal to store the projection screen 100. ) Is output (S651a). If the first and second reception time information are inconsistent as a result of determination, the first local terminal 310 divides the inconsistent time between the first and second reception time information to 2, and The left eye image is output by adding or subtracting the calculated time to the time when the first synchronization control signal is received (S651b).

More specifically, when the first reception time information is time information faster than the second reception time information, the first local terminal 310 according to the time information obtained by adding the calculated time to the time when the synchronization control signal is received, the left eye image. Is projected onto the projection screen 100 through the first projector 210. Meanwhile, when the first reception time information is slower than the second reception time information, the first local terminal 310 performs a left eye image based on time information obtained by subtracting a time calculated from a time when the synchronization control signal is received. Projected to the projection screen 100 through the first projector 210.

Thereafter, the first local terminal 310 determines whether the output of the left eye image is completed (S653). If it is determined that the output of the left eye image is not completed, the first local terminal 310 returns to step S635 and repeats steps S635 to S653.

On the other hand, if it is determined that the output of the left eye image is completed, the first local terminal 310 transmits the VNC stop request to the control server 600 (S655), thereby stopping the output of the left eye image.

Simultaneously with step S649, the second local terminal 330 also includes the second timestamp generated by itself and the first timestamp generated by the first local terminal 310 received in step S643. 2, it is determined whether or not the reception time information matches the first reception time information (S657).

When the second and the first reception time information is identical, the second local terminal 330 outputs the pre-stored right eye image to the projection screen 100 using the projector 200 connected to the self according to the second synchronization signal. (S659a),

On the other hand, when the second and first reception time information is inconsistent as a result of determination, the second local terminal 330 divides the inconsistent time between the second and first reception time information to 2, The right eye image is output by adding or subtracting the calculated time to the time when the second synchronization control signal is received (S659b).

More specifically, when the second reception time information is time information faster than the first reception time information, the second local terminal 350 according to the time information obtained by adding the calculated time to the time when the synchronization control signal is received, the right eye image. To the projection screen 100 through the second projector 250. Meanwhile, when the second reception time information is slower than the first reception time information, the second local terminal 350 removes the right eye image according to the time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. 2 projects onto the projection screen 100 through the projector 250.

Thereafter, the second local terminal 330 determines whether the output of the right eye image is completed (S661).

If it is determined that the output of the right eye image is not completed, the second local terminal 330 returns to step S635 and repeats steps S635 to S647 and S657 to S661.

On the other hand, if it is determined that the output of the right eye image is completed, the second local terminal 330 transmits the VNC stop request to the control server 600 (S663), thereby stopping the output of the right eye image.

Although not shown, in steps S609 to S653, the control server 600 sends the reproduction request signal, the suspension request signal, the suspension request signal, and the VNC access suspension signal to the first and second local terminals 310 and 330. Can transmit

In response to the play request signal, the first and second local terminals 310 and 350 respectively display left and right eye images according to the synchronous control signals previously stored in the database 670 of the control server 600 included in the play request signal. Output to the projection screen 100 using the projector (210, 250) connected to.

In response to the suspend request signal, the first and second local terminals 310 and 350 suspend playback of the right eye image.

In response to the pause playback signal, the first and second local terminals 310 and 350 replay the left and right eye images after the suspension.

According to the VNC access stop signal, the first and second local terminals 310 and 350 stop the data link for control set by the VNC access request signals (steps S601 to S605) and the VNC access response signals S607 to S608. You can do that.

Meanwhile, in FIGS. 1 to 6, the first local terminal 310 and the first projector 210 are used to output a left eye image, and the second local terminal 350 and the second projector 250 may have a right eye image. Is used to output

In another embodiment, the control server 600 of the synchronous control system and the synchronous control method for displaying a stereoscopic image according to the present invention is divided into two or more using a plurality of local terminals and projectors (eg, 256 local terminals and projectors). It can be used to output the captured image in panorama format.

The invention can also be embodied as computer readable code on a computer readable recording medium. Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disks, optical data storage devices, and the like, which are also implemented in the form of carrier waves (eg, transmission over the Internet). It also includes.

The computer readable recording medium can also be injected onto a networked computer system so that the computer readable code is stored and executed in a distributed fashion. And functional programs, codes and code segments for implementing the present invention can be easily inferred by programmers in the art to which the present invention belongs.

Although the contents of the present invention have been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art may realize various modifications and other equivalent embodiments therefrom. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to the synchronous control system and the synchronous control method for displaying stereoscopic images of the present invention, the left and right eye images stored in two local terminals are synchronized through a control server, thereby allowing the left and right eye images to be transmitted to one existing local terminal. Compared to the projection screen projection method, it can provide a technology that improves the accuracy of load and synchronization of the local terminal.

1 is a block diagram showing the configuration of a synchronization control system for screening stereoscopic images according to an embodiment of the present invention.

2 is a block diagram showing the configuration of the control server of FIG.

3 is a block diagram illustrating a configuration of a first control unit of FIG. 2.

4 is a block diagram showing a configuration of a first local terminal of FIG. 1;

5 is a block diagram illustrating a configuration of a second control unit of FIG. 4.

6 is a flowchart illustrating a synchronization control method for displaying a stereoscopic image according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: screen 200: projector

300: local terminal 311: second input unit

313: second transceiver 315: second controller

317: output interface 319: storage unit

400: IP router 500: communication network

600: control server 610: first input unit

630: second transceiver 650: first controller

670: database

Claims (21)

A first local terminal for outputting a left eye image; A second local terminal for outputting a right eye image; And In order to control the synchronization of the first local terminal and the second local terminal, the first and second stereoscopic image selection signals respectively received from the first and second local terminals coincide, and the first and second resolution selection signals are matched. A control server that periodically transmits a synchronization control signal to the first local terminal and the second local terminal when the data is matched; Synchronous control system for three-dimensional image screening comprising a. The method of claim 1, A first projector connected to the first local terminal to project the left eye image output from the first local terminal onto a projection screen; And A second projector connected to the second local terminal to project the right eye image output from the second local terminal onto the projection screen; Synchronous control system for three-dimensional image screening further comprising. The method of claim 2, wherein the first local terminal, The first timestamp including the first reception time information is generated using the synchronous control signal received from the control server, and transmitted to the second local terminal, and the second reception time information received from the second local terminal is transmitted. When the second timestamp and the first reception time information are identical, the left eye image is projected to the projection screen through the first projector according to the synchronization control signal to output the right eye image output by the second terminal. And a stereoscopic image to be screened by a combination of the two. The method of claim 3, wherein the first local terminal, When the first reception time information and the second reception time information are inconsistent, the operation of dividing the inconsistent time by 2 is performed to add or subtract the calculated time to the time when the synchronization control signal is received. And projecting the left eye image onto the projection screen through the first projector. The method of claim 4, wherein the first local terminal, When the first reception time information is time information faster than the second reception time information, the left eye image is transmitted through the first projector according to time information obtained by adding the calculated time to the time when the synchronization control signal is received. And a projection screen for projecting the projection screen. The method of claim 4, wherein the first local terminal, When the first reception time information is slower time information than the second reception time information, the left eye image is transmitted through the first projector according to time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. And a projection screen for projecting the projection screen. The method of claim 3, wherein the second local terminal, A second timestamp including second reception time information is generated by using the synchronous control signal received from the control server and transmitted to the first local terminal, and includes the first reception time information received from the first local terminal. When the first timestamp and the second reception time information coincide with each other, the right eye image is projected to the projection screen through the second projector according to the synchronization control signal, and the left eye image output by the first terminal. Synchronous control system for stereoscopic image screening characterized in that to be screened by the combination of the three-dimensional image. The method of claim 7, wherein the second local terminal, When the second reception time information and the first reception time information are inconsistent, the operation of dividing the inconsistent time by 2 is performed to add or subtract the calculated time to the time when the synchronization control signal is received. And projecting the left eye image onto the projection screen through the second projector. The method of claim 8, wherein the second local terminal, When the second reception time information is time information faster than the first reception time information, the right eye image is transmitted through the second projector according to time information obtained by adding the calculated time to the time when the synchronization control signal is received. And a projection screen for projecting the projection screen. The method of claim 8, wherein the second local terminal, When the second reception time information is slower than the first reception time information, the right eye image is transmitted through the second projector according to the time information obtained by subtracting the calculated time from the time when the synchronization control signal is received. And a projection screen for projecting the projection screen. A first transceiver for performing data transmission and reception; And A first stereoscopic image selection signal and a first resolution selection signal are received from a first local terminal for outputting a left eye image, and a second stereoscopic image selection signal and a second resolution selection signal are output from a second local terminal for outputting a right eye image. And periodically transmits a synchronization signal to the first local terminal and the second local terminal when the first and second stereoscopic image selection signals and the first and second resolution selection signals coincide with each other. A first controller for controlling the first transceiver; Control server of a synchronous control system for displaying a stereoscopic image comprising a. The method of claim 11, wherein the first control unit, A first VNC module which transmits a VNC access request signal to the first local terminal and the second local terminal, receives a VNC access response signal, and connects a data link for control; The first stereoscopic image selection signal, the first resolution selection request signal, and the second stereoscopic image selection are transmitted to the first local terminal and the second local terminal through the data link, respectively. A first image processing module configured to receive a signal and a second resolution selection request signal, respectively; And A synchronization processing module for periodically transmitting a synchronization signal to the first local terminal and the second local terminal when the first and second stereoscopic image selection signals and the first and second resolution selection signals coincide; The control server of the synchronous control system for three-dimensional image screening comprising a. A second transceiver for performing data transmission / reception; And The control server generates a first timestamp including the first reception time information by using the synchronous control signal transmitted according to the determination that the stereoscopic image selection signals of the two local terminals match and the resolution selection signals match. To the local terminal, When the first reception time information included in the second timestamp received from the second local terminal and the second reception time information coincide with each other, one of the images separated by both eyes is projected using the first projector. A second control unit controlling to project onto a screen so that a stereoscopic image is displayed together with another image projected from the second local terminal; And A storage unit which stores the one image; Local terminal of the synchronous control system for the three-dimensional image screening comprising a. The method of claim 13, wherein the second control unit, A second VNC module receiving a VNC access request signal from the control server and returning a VNC response signal to connect a data link for control; A second image processing module receiving an image selection request signal from the control server through the data link and returning the image selection signal, and receiving a resolution selection request signal from the control server and returning the resolution selection signal; And Receiving the synchronization signal from the control server to generate a first timestamp including first reception time information using the received time, and the second including the second reception time information transmitted from the second local terminal; Receiving the timestamp and projecting the one image to the projection screen through the first projector according to the synchronization control signal when the first reception time information matches the second reception time information. And a synchronization module; Local terminal of the synchronous control system for screening stereoscopic images, comprising a. The method of claim 14, wherein the operation and synchronization module, If the first reception time information and the second reception time information are inconsistent, the operation of dividing the inconsistent time to 2 is performed, and the first reception time information is faster than the second reception time information. In the case of the information, the synchronization control signal is received when the first reception time information is slower than the second reception time information according to time information obtained by adding the calculated time to the time when the synchronization control signal is received. And projecting the one image to the projection screen through the first projector according to the time information obtained by subtracting the calculated time from the estimated time. The control server includes a first step of transmitting a VNC access request signal to the first and second local terminals, respectively, receiving a VNC access response signal and connecting a data link for control; A second step of the control server transmitting a video selection request signal to first and second local terminals through the data link and returning first and second video selection signals, respectively; The control server transmits a resolution selection request signal to the first and second local terminals to receive the first resolution selection signal and the second resolution selection signal, respectively, if the received first and second image selection signals match. Third step; The control server periodically transmits a synchronous control signal to the first and second local terminals when the first and second resolution selection signals coincide with each other so that the first and second local terminals are connected to the synchronous control signal. A fourth step of outputting the left and right eye images to the projection screen at the same time through the first and second projectors connected to the fourth projector so as to display stereoscopic images; Synchronous control method for three-dimensional image screening comprising a. A first step in which the first and second local terminals receive the synchronization control signal from the control server; Generating, by the first local terminal and the second local terminal, a second timestamp including first and second receiving time information, respectively, according to the synchronization control signal; A third step of transmitting, by the first local terminal, the first timestamp to the second local terminal, and wherein the second local terminal transmits the second timestamp to the first local terminal; And The first local terminal and the second local terminal, respectively, when the first reception time information and the second reception time information coincide with each other, the first and second left and right eye images stored therein according to the synchronization control signal. A fourth step of projecting a stereoscopic image by projecting onto a projection screen using a projector; Synchronous control method for three-dimensional image screening comprising a. The method of claim 17, wherein the fourth step, If the first and second reception time information is inconsistent, the first and second local terminals divide the inconsistent time between the first and second reception time information to 2, respectively, Outputting a right eye image by adding or subtracting the calculated time to the time at which the synchronization control signal is received; Synchronization control method for the three-dimensional image screening, characterized in that it further comprises. A first step in which the first local terminal receives the synchronization control signal from the control server; Generating, by the first local terminal, a first time stamp each including first reception time information according to the synchronization control signal; The first local terminal transmits the first timestamp to the second local terminal, and the second timestamp includes second reception time information according to the reception of the synchronization control signal generated by the second local terminal. Receiving a third step; And When the first reception time information and the second reception time information coincide, the first local terminal transfers one of the pre-stored binocular images to the projection screen using a first projector connected to the user according to the synchronization control signal. A fourth step of outputting and displaying a stereoscopic image by combining the image output by the second local terminal with another image of the binocular image; Synchronous control method for three-dimensional image screening comprising a. The method of claim 19, wherein the fourth step, When the first and second reception time information are inconsistent, the first local terminal divides the inconsistent time between the first and second reception time information to 2 to receive the synchronous control signal. Outputting the one image by adding or subtracting the calculated time to a predetermined time; Synchronization control method for the three-dimensional image screening, characterized in that it further comprises. A plurality of local terminals for storing and outputting a plurality of divided images in advance; And In order to synchronize the plurality of local terminals, when a plurality of stereoscopic image selection signals received from the plurality of local terminals and a plurality of resolution selection signals coincide, the synchronization control signal is periodically transmitted to the plurality of local terminals. A control server configured to control the plurality of local terminals to project the divided image on the projection screen in a panorama format through a plurality of projectors respectively connected to the plurality of local terminals; Synchronous control system for three-dimensional image screening comprising a.

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