KR20160077767A - System and Mehtod Displaying Super Multi-View Image - Google Patents

Abstract

The present invention relates to a system and a method for displaying a super multi-viewpoint image. According to the present invention, the system synchronizes image play timing between display terminals. The system comprises: a display apparatus displaying image content outputted by a plurality of processing terminals; a control terminal designating an output time of the image content; and the processing terminals calculating an error between the current output times of the image content through the display apparatus and the output time designated by the control terminal and adjusting the current output time of the image content by using the calculated error. The purpose of the present invention is to provide a system for displaying a super multi-viewpoint image, which may precisely display or pause the super multi-viewpoint image.

Description

[0001] The present invention relates to a multi-view display system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system and method for super-multi-view image display, and more particularly, to a system and method for synchronizing image reproduction timings between display terminals.

There is a 3D display with no glasses in a way that solves the inconvenience of wearing special glasses. The 3D display without glasses is largely divided into a multi-point 3D display, which is currently being tried for commercialization, an integrated imaging technology, And a multi-point 3D display. Furthermore, there is a holographic 3D display which can be called the ultimate 3D display.

Among the 3D point-of-view 3D displays, the most commonly used methods are the parallax barrier method and the lenticular method.

These multi-view 3D displays have various problems such as resolution degradation according to the number of viewpoints, 3D image quality degradation caused by cross-talk between the viewpoints, and limitation of the number of viewpoints due to resolution problems. However, recently, By applying the observer tracking method, fundamental problems were solved only for one person.

However, the multi-view 3D display remains a problem that many problems arise in the environment of use and eye fatigue.

On the other hand, the super-multi-view display in which the number of viewpoints is increased is a method of acquiring an image or an image at a plurality of positions (i.e., viewpoints) of a single subject and composing it with an intermediate viewpoint image. The intermediate view image generated in this way is synthesized through the display device, so that the super high view image can be reproduced. Large oversized points of 100 inches or more can be created by displaying an intermediate view image with a plurality of projector arrays. The foregoing description is only possible if the interim view image can be displayed at the correct timing determined by the respective expressing terminals. This method is called Super Multi-View (SMV) or Super Multi-View (SMV) method.

The second multi-viewpoint system acquires an image or an image acquired from a plurality of positions (i.e., a viewpoint) of a single subject and combines it with an intermediate view image. The intermediate view image generated in this manner can be synthesized through the display device to reproduce the super high view image. Large oversized points of 100 inches or more can be created by displaying an intermediate view image with a plurality of projector arrays. In order to do this, each of the display terminals expressing the mid-view image must be able to display at the correct timing.

In the conventional super multi-point system, there is not a great problem about the reproduction timing when the still image is displayed. However, when the continuous images are reproduced, when the error occurs in the display time of each terminal or when the start point of presentation is different, There is a problem that distortions occur in point images.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a control terminal capable of reducing the display time error between each of the display terminals and accurately displaying or stopping the multi- The present invention also provides a system and method for displaying a multi-viewpoint image.

According to an aspect of the present invention, there is provided a super multi-viewpoint image display system including: a display device for displaying image contents output from a plurality of processing terminals; A control terminal for specifying an output time of the image content; And a plurality of processing terminals for calculating an error between an output time designated by the control terminal and a current output time of the image content through the display device and adjusting a current output time of the image content using the calculated error .

Each processing terminal comprises: a storage unit for storing the image contents transmitted in a streaming manner from the control terminal in a FIFO (First In First Out) manner; A calculation unit that calculates an error between an output time designated by the control terminal and a current output time of the image content through the display device and calculates an error correction value using the calculated error; And a controller for adjusting a current output time of the image content by moving a storage position of the image content stored in the FIFO format according to the error correction value calculated by the calculation unit.

Wherein the control unit moves the storage position of the image content stored in the FIFO system to a line output position by N if the error correction value calculated by the calculation unit is a positive integer N, When the correction value is a negative integer N, the storage location of the image content stored in the FIFO manner is shifted to the next output position by N to adjust the current output time of the image content.

According to another aspect of the present invention, there is provided a super multi-viewpoint image display method, comprising: calculating an error between an output time of a designated image content and a current output time of the image content through a display device; And adjusting a current output time of the image content using the calculated error.

The calculating the error may include calculating an error between an output time of the designated image content and a current output time of the image content through the display device; And calculating an error correction value using the calculated error.

Wherein if the calculated error correction value is a positive integer N, the step of adjusting the current output time shifts the storage position of the image content stored in the FIFO manner to a line output position by N to output the current output time of the image content Adjusting; And adjusting the current output time of the image content by moving the storage position of the image content stored in the FIFO scheme to the next output position by N if the calculated error correction value is a negative integer N .

According to the present invention, each of the display terminals can be accurately controlled at the same time, and the visual distortion phenomenon can be reduced due to the difference in display time between the display terminals.

In particular, not only the content stored in each of the display terminals but also the content streamed through the network (content requiring real-time reproduction) can be reproduced at the synchronized time (the display time can be controlled to have a low error) There is an advantage.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a system for displaying multi-viewpoint images according to an exemplary embodiment of the present invention. FIG.
2 is a diagram showing a structure of an instruction packet transmitted by the control terminal of FIG.
3 is a diagram showing the structure of the processing terminal 100a of FIG. 1;
4 is a diagram showing a storage method for a packet transmitted from a control terminal by a plurality of processing terminals;
FIG. 5 is a flowchart illustrating a method for displaying a super multi-viewpoint image according to an exemplary embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, advantages and features of the present invention and methods of achieving them will be apparent from the following detailed description of embodiments thereof taken in conjunction with the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, And advantages of the present invention are defined by the description of the claims.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises "and / or" comprising ", as used herein, unless the recited component, step, operation, and / Or added.

Hereinafter, a multi-viewpoint image display system according to an embodiment of the present invention will be described with reference to FIG. 1 is a block diagram illustrating a multi-viewpoint image display system according to an exemplary embodiment of the present invention.

1, a super multi-viewpoint image display system according to an embodiment of the present invention includes a plurality of processing terminals 100a, 100b, ..., 100n, a switch 200, a grand master 300, A control terminal 400, a content server 500 and a display device 600. [

The plurality of processing terminals 100a, 100b, ..., 100n comply with the IEEE 1588 PTP (Precision Time Protocol) or IEEE 802.1AS standard, and display the image contents in accordance with the control of the control terminal 400 (600).

The switch 200 supports the precision time protocol and connects the plurality of processing terminals 100a, 100b, ..., 100n to the communication network 700. [

Here, the communication network 700 is a wired communication network, and supports wired wired communication such as Ethernet.

The grand master 300 provides the same time to the plurality of processing terminals 100a, 100b, ..., 100n connected to the communication network 700. [

In order to synchronize with the grand master 300, a plurality of processing terminals 100a, 100b, ..., 100n are connected to the communication network 700 using a switch 200 that supports a precision time protocol according to a precision time protocol Connect.

In this way, the plurality of processing terminals 100a, 100b, ..., 100n can precisely synchronize with the grand master 300 to nanoseconds or nanoseconds or less, 100n can be precisely matched in time.

Since the plurality of processing terminals 100a, 100b, ..., 100n operate on the premise of synchronization with the grand master 300, the control of the control terminal 400 allows the grand master 300, And confirms whether or not to synchronize with the server. When the plurality of processing terminals 100a, 100b, ..., 100n are not synchronized with the grand master 300, the processing terminals 100a, 100b, ..., 100n operate after synchronization and under control of the control terminal 400.

The control terminal 400 transmits a packet according to the layer-2 or the TCP / UDP through the communication network 700 so that the plurality of processing terminals 100a, 100b, ..., .

When a plurality of processing terminals 100a, 100b, ..., 100n store a plurality of video contents by themselves, a plurality of video contents stored under the control of the control terminal 400 are displayed on the display device 600 It is possible to provide a super multi-view image to the user.

When the plurality of processing terminals 100a, 100b, ..., 100n do not store a plurality of video contents themselves, the control terminal 400 or the content server 500 provides the video contents in a streaming manner And displays it through the display device 600, thereby providing the user with a super multi-view image.

After the control terminal 400 and the content server 500 also complete the synchronization with the grand master 300 according to the precision time protocol, the control terminal 400 and the content server 500 transmit the video content to the plurality of processing terminals 100a, 100b, ..., 100n in a streaming manner Lt; / RTI >

Hereinafter, a method of controlling the plurality of processing terminals 100a, 100b, ..., 100n by transmitting an instruction packet to the control terminal 400 will be described in detail with reference to FIG. 2 is a diagram showing the structure of an instruction packet transmitted by the control terminal of FIG.

2, a packet transmitted by the control terminal 400 to control the plurality of processing terminals 100a, 100b, ..., 100n includes a packet header field (8 bits), a time stamp field 64 Bit) and a payload (command / image content) field (variable length).

The packet header field is packet type information, and is set as type information of either a command type or an image content type.

The time stamp field is presentation time information, and is set as one of time information of command execution time and video content output time.

The payload field is set to the instruction information for controlling the operation of the plurality of processing terminals 100a, 100b, ..., 100n or to the video content information to be displayed through the display device 600. [

Although the packet structure is described as being composed of a packet header field, a time stamp field, and a payload field, the present invention is not limited to this.

The control terminal 400 sets the command type information in the packet header field when a plurality of video contents are stored in the plurality of processing terminals 100a, 100b, ..., 100n, And sets instruction information for controlling the operation of the plurality of processing terminals 100a, 100b, ..., 100n in the payload field. The control terminal 400 transmits the set packet to the plurality of processing terminals 100a, 100b, ..., 100n.

For example, the control terminal 400 may set a start instruction word in the payload field to control the output of the image content stored in the plurality of processing terminals 100a, 100b, ..., 100n through the display device 600 . The control terminal 400 can set the payload field with the start command as well as additional information on how many images to start outputting.

The control terminal 400 may set a next command in the payload field to control the plurality of processing terminals 100a, 100b, ..., 100n to output the next image content among the image contents stored therein.

Also, the control terminal 400 may set a slide show command in the payload field to control the plurality of processing terminals 100a, 100b, ..., 100n to output according to the set interval from the current image index.

The control terminal 400 may set a stop command in the payload field to control the plurality of processing terminals 100a, 100b, ..., 100n to stop outputting the video content.

The control terminal 400 can control to terminate the operation of the plurality of processing terminals 100a, 100b, ..., 100n by setting a power down command in the payload field.

The control terminal 400 also sets the content type information in the packet header field when a plurality of video contents are not stored in the plurality of processing terminals 100a, 100b, ..., 100n, Sets the video content output time information, and sets the video content information to be displayed through the display device 600 in the payload field. The control terminal 400 transmits the set packet to the plurality of processing terminals 100a, 100b, ..., 100n.

For example, the control terminal 400 may set a plurality of content images in the payload field and transmit them to the plurality of processing terminals 100a, 100b, ..., 100n. When the plurality of content images are set in one payload field, the control terminal 400 sets the video content output time information to be displayed in the first content video in the time stamp field.

Hereinafter, a process of processing packets transmitted from the control terminal 400 by the plurality of processing terminals 100a, 100b, ..., 100n will be described in detail with reference to FIG. 3 and FIG. FIG. 3 is a diagram illustrating a structure of the processing terminal 100a of FIG. 1, and FIG. 4 is a diagram illustrating a storage method for packets transmitted from a control terminal by a plurality of processing terminals.

Since the plurality of processing terminals 100a, 100b, ..., 100n have the same configuration, the processing terminal 100a will be described below as an example.

3, the processing terminal 100a includes a communication unit 110a, a control unit 120a, 130a, a clock 140a, and a calculation unit 150a.

Hereinafter, the operation of the processing terminal 100a will be described when a plurality of video contents are stored in the storage unit 120a.

The communication unit 110a sets the command type information in the packet header field transmitted by the control terminal 400, sets the command execution time information in the time stamp field, controls the operation of the processing terminal 100a in the payload field, Lt; RTI ID = 0.0 > command < / RTI > The communication unit 110a transmits the packet received from the control terminal 400 to the control unit 120a.

The control unit 120a parses the packet transmitted from the communication unit 110a to obtain command information and command execution time information of the control terminal 400. [ The control unit 120a stores the acquired command information and command execution time information in the event queue 131a.

For example, as shown in Fig. 4, the control unit 120a stores the acquired command information in the event item and stores the command execution time information in the execution time [sec] item.

That is, the control unit 120a sets the event field of the event queue 131a to "start", "next", "prev", "slide show", "stop" . The control unit 120a reads the execution time "5000.00000" corresponding to the first start, the execution time "5010.00000" corresponding to the next, and the execution time "5020.00000" corresponding to the prev in the execution time [second] field of the event queue 131a 5030.00000 / 10.000 (interval) "corresponding to the slide show, the execution time" 1005000.000328 "corresponding to the stop, and the execution time" 1030000.5 "corresponding to the last power down.

The control unit 120a periodically checks the execution time of the first instruction stored in the execution time field of the event queue 131a. As a result of checking, if the current time of the clock 140a coincides with the first instruction execution time stored in the execution time field of the event queue 131a, the controller 120a stores the first stored event field of the event queue 131a Execute the command.

For example, when the execution time "5000.00000" corresponding to the instruction "START " stored first in the execution time field of the event queue 131a matches the current time of the clock 140a, Through the display device 600, the image contents stored in the storage unit 130 in accordance with the instruction "START "

As described above, by executing the instructions stored in the event queue 131a according to the instruction execution time corresponding to each instruction and outputting the plurality of image contents stored in the storage unit 130 through the display device 600, It is possible to provide the second multi-view video contents.

Hereinafter, the operation of the processing terminal 100a will be described when a plurality of video contents are not stored in the storage unit 120a.

The communication unit 110a sets the content type information in the packet header field transmitted from the control terminal 400, sets the video content output time information in the time stamp field, and displays the video content in the payload field through the display device 600 And receives the packet in which the video content information is set. The communication unit 110a transmits the packet received from the control terminal 400 to the control unit 120a.

The control unit 120a parses the packet transmitted from the communication unit 110a to acquire image content output time information and image content information. The controller 120a stores the acquired image content output time and image content in a FIFO (First In First Out) buffer 132a.

The control unit 120a checks the first video content output time in the FIFO buffer 132a. If it is determined that the first video content output time stored in the FIFO buffer 132a matches the current time of the clock 140a, the controller 120a stores the first video content output time in the FIFO buffer 132a And outputs the first image content stored in the corresponding FIFO buffer 132a through the display device 600. [

As described above, the image content stored in the FIFO buffer 132a is output through the display device 600 according to the image content output time corresponding to each image content, thereby providing the user with the multi-view image content.

Meanwhile, the controller 120a stores the time of outputting the image content stored in the FIFO buffer 132a through the display device 600 in the storage unit 130a at the current local time T _local .

The control unit 120a transmits the stored current local time T _local and the image content output time T _present corresponding to the image content stored in the FIFO buffer 132a to the calculating unit 150a.

The calculating unit 150a calculates an error dT between the current local time T _local and the image content output time T _present transmitted from the controller 120a as shown in Equation (1).

For example, the current local time (T _local ) is a time at which the processing terminal 100a records the moment when the image content is outputted through the display device 600 based on the time according to its precision time protocol.

The video content output time (T _present ) corresponding to the video content stored in the FIFO buffer can be set at a time when the control terminal (400) or the content server (500) This is the time that you specified whether to display.

Accordingly, when the processing terminal 100a, the control terminal 400, and the content server 500 are synchronized with the grand master 300 according to the precision time protocol, the calculating unit 150a calculates the current local The error dT between the time T _local and the image content output time T _present is calculated as zero.

Hereinafter, a method for correcting the calculated error dT by the processing terminal 100a will be described in detail.

The calculating unit 150a can calculate the error correction value N using Equation 2 using the calculated error dT.

floor (x) is the largest integer less than or equal to x, and T _s is the period for one content frame.

For example, in the case of a video content having an FPS (Frame Per Second) of 30, one frame period is 1/30 second.

The control unit 120a controls the video content presentation time designated by the control terminal 400 and the video content transmitted from the control terminal 400 according to the error correction value N calculated by the calculation unit 150a on the actual display device (Image content) error between the time of presentation through the display unit 600 and the display time of the frame. The control unit 120a adjusts the storage position of the image contents transferred from the control terminal 400 in the FIFO buffer 132a according to the determination result to compensate for the error generated in the image contents.

For example, when the error correction value N calculated by the calculation unit 150a is 0, the control unit 120a compares the output time of the image content output through the display device 600 with the control terminal 400 It is determined that the designated output time is synchronized.

However, when the error correction value N calculated by the calculation unit 150a is a positive integer, the control unit 120a outputs the output time of the image content currently output through the display device 600 to the control terminal 400 It is determined that the output time is slower than the output time specified by " If it is determined that the output time of the video content output through the display device 600 is slower than the output time designated by the control terminal 400, the control unit 120a determines that the video content ) To a storage location that can output faster than the current storage location. That is, the control unit 120a shifts the storage position of the image content (data) that remains in the FIFO buffer 132a to the line output position by the error correction value N calculated by the calculation unit 150a.

By doing so, the amount of data remaining in the current FIFO buffer 132a is reduced, and the video content transmitted from the control terminal 400 as a new packet is synchronized (synchronized) exactly at the time designated by the control terminal 400. [ Can be output through the display device (600). Thus, it is possible to provide the user with the super multi-view video content.

On the other hand, when the error correction value N calculated by the calculation unit 150a is a negative integer, the control unit 120a outputs the output time of the image content output through the display device 600 to the control terminal 400 It is judged that it is earlier than the time designated by the user. If the output time of the video content output through the display device 600 is determined to be earlier than the time designated by the control terminal 400, the control unit 120a determines that the video content (data) remaining in the FIFO buffer 132a, To a storage position at which the storage position of the storage medium can be output more slowly than the present storage medium. That is, the control unit 120a shifts the storage position of the video content (data) that is currently remaining in the FIFO buffer 132a to the posterior output position by the error correction value N calculated by the calculation unit 150a.

By doing so, the video content transmitted from the control terminal 400 as a new packet can be output through the display device 600 exactly in synchronization with the time specified by the control terminal 400. [ Thus, it is possible to provide the user with the super multi-view video content.

As described above, the error between the time designated by the control terminal 400 and the time when the processing terminal 100a outputs the actual image content through the display device 600 is calculated, and the error correction value . The generated error can be corrected by moving the position of the data remaining in the FIFO buffer 132a forward or backward with respect to the current storage position according to the calculated error correction value.

Hereinafter, a method for displaying a super multi-viewpoint image according to an embodiment of the present invention will be described with reference to FIG. 5 is a flowchart illustrating a super multi-viewpoint image display method according to an embodiment of the present invention.

As shown in FIG. 5, the super-multi-view image display method according to an exemplary embodiment of the present invention determines whether image contents are stored in the storage unit (S500).

As a result of the determination, if the image content is stored in the storage unit, the command type information is set in the packet header field, the command execution time information is set in the time stamp field, and the command information for controlling the operation is set in the payload field The packet is received from the control terminal (S501).

And parses the packet received from the control terminal to obtain instruction information and instruction execution time information. The acquired command information and command execution time information are stored in the event queue (S502).

For example, the acquired instruction information is stored in the event item, and the instruction execution time information is stored in the execution time [sec] item.

In other words, "Start", "Next", "Prev", "Slideshow", "Stop" and "Power Down" are saved as the first command in the event field of the event queue. Execution time "5000.00000" corresponding to the first start, "5010.00000" corresponding to the next, execution time "5020.00000" corresponding to the prev, execution corresponding to the slide show in the execution time [second] field of the event queue The execution time corresponding to the stop is " 1005000.000328 ", and the execution time corresponding to the power-down last is "1030000.5 ".

The first instruction execution time stored in the execution time field of the event queue is periodically checked (S503).

If it is determined that the current time coincides with the first instruction execution time stored in the execution time field of the event queue, the first instruction stored in the event field of the event queue is executed (S504).

For example, if the execution time "5000.00000" corresponding to the first instruction "START " stored in the execution time field of the event queue coincides with the current time, the first instruction stored in the event field of the event queue 131a And outputs the image content stored in the storage unit through the display device.

As described above, by executing the instructions stored in the event queue according to the instruction execution time corresponding to each instruction and outputting the plurality of image contents stored in the storage unit through the display device, it is possible to provide the user with the multi- have.

However, if it is determined in step S500 that the video content is not stored in the storage unit, the content type information is set in the packet header field, the video content output time information is set in the time stamp field, A packet having image content information to be displayed through the device 600 is received from the control terminal (S505).

And obtains image content output time information and image content information by parsing the packet received from the control terminal. The acquired image content output time and image content are stored in a FIFO (First In First Out) buffer (S506).

The output time of the first video content stored in the FIFO buffer is checked (S507). If it is determined that the first video content output time in the FIFO buffer matches the current time of the clock, the first video content stored in the FIFO buffer corresponding to the first video content output time in the FIFO buffer is displayed on the display device Lt; / RTI >

The time of outputting the image contents stored in the FIFO buffer through the display device is stored in the storage unit at the current local time (T _local ).

An error dT between the stored current local time T _local and the image content output time T _present corresponding to the image content stored in the FIFO buffer 132a is calculated at step S508.

For example, the current local time (T _local ) is a time when the processing terminal 100a records the moment when the image content is outputted through the display device based on the time according to its precision time protocol.

The image content output time (T _present ) corresponding to the image content stored in the FIFO buffer is a time when the control terminal providing the image content or the content server specifies when the image content is to be displayed based on the time according to its precision time protocol .

Accordingly, when the processing terminal, the control terminal, and the content server are synchronized to the grand master according to the precision time protocol, the error dT between the current local time T _local and the image content output time T _present is calculated as zero.

The error correction value N is calculated using the calculated error dT (S509).

(Video content) error between the video content presentation time designated by the control terminal and the time when the video content transmitted from the control terminal is displayed on the actual display device according to the calculated error correction value N is determined. According to the determination result, the storage position of the image content transmitted from the control terminal is adjusted in the FIFO buffer to compensate the error generated in the image content (S510).

It is determined that the output time of the image content output through the display device 600 is synchronized with the output time designated by the control terminal.

However, when the calculated error correction value N is a positive integer, it is determined that the output time of the image content output through the current display device is slower than the output time designated by the control terminal.

If it is determined that the output time of the video content output through the display device is slower than the output time designated by the control terminal, the storage location of the video content (data) . That is, the storage position of the image content (data) that remains in the FIFO buffer is shifted to the line output position by the calculated error correction value (N).

By doing so, it is possible to reduce the amount of data remaining in the current FIFO buffer and to output the image content from the video contents transmitted from the control terminal in a new packet exactly in synchronization with the time designated by the control terminal through the display device . Thus, it is possible to provide the user with the super multi-view video content.

On the other hand, when the calculated error correction value N is a negative integer, it is determined that the output time of the video content output through the current display device is faster than the time designated by the control terminal. If it is determined that the output time of the video content output through the display device is earlier than the time designated by the control terminal, the storage location of the video content (data) remaining in the FIFO buffer may be output to a storage location . That is, the storage position of the image content (data) that remains in the FIFO buffer is shifted to the post-output position by the calculated error correction value (N).

By doing so, it is possible to output the image contents from the image contents transmitted from the control terminal in a new packet exactly (in synchronization) at the time designated by the control terminal through the display device. Thus, it is possible to provide the user with the super multi-view video content.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100a, 100b, ..., 100n: a first processing terminal, a second processing terminal, ..., an nth processing terminal
200: Switch 300: Grand Master
400: Control terminal 500: Content server
600: display device 700: communication network

Claims (6)

A display device for displaying image contents output from a plurality of processing terminals;
A control terminal for specifying an output time of the image content; And
An error between the output time designated by the control terminal and the current output time of the image content through the display device and adjusting the current output time of the image content using the calculated error,
A second multi-view image display system comprising: The terminal according to claim 1,
A storage unit for storing the image contents transmitted by the streaming method from the control terminal in a FIFO (First In First Out) manner;
A calculation unit that calculates an error between an output time designated by the control terminal and a current output time of the image content through the display device and calculates an error correction value using the calculated error; And
And a control unit for adjusting a current output time of the image content by moving a storage position of the image content stored in the FIFO scheme according to the error correction value calculated by the calculation unit
In - line multi - view video display system. 3. The apparatus of claim 2,
If the error correction value calculated by the calculation unit is a positive integer N, moves the storage position of the image content stored in the FIFO scheme to the line output position by N, and if the error correction value calculated by the calculation unit is negative If the N is an integer N, moving the storage position of the image content stored in the FIFO manner to the next output position by N to adjust the current output time of the image content
In - line multi - view video display system. Calculating an error between an output time of the designated image content and a current output time of the image content through the display device; And
Adjusting the current output time of the image content using the calculated error
/ RTI > image display method. 5. The method of claim 4, wherein the calculating the error comprises:
Calculating an error between an output time of the designated image content and a current output time of the image content through the display device; And
And calculating an error correction value using the calculated error
A method for displaying a multi-viewpoint image. 6. The method of claim 5, wherein adjusting the current output time comprises:
Adjusting the current output time of the image content by moving the storage location of the image content stored in the FIFO format to a line output position by N if the calculated error correction value is a positive integer N; And
And adjusting the current output time of the image content by moving the storage location of the image content stored in the FIFO scheme to the next output position by N if the calculated error correction value is a negative integer N
A method for displaying a multi-viewpoint image.

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