KR100763753B1 - System for servicing stereophonic broadcast based on 3 dimension communication network - Google Patents

Abstract

A 3D stereophonic broadcasting service system based on a communication network and a method therefor are provided to allow a user to receive a 3D stereophonic broadcasting service of improved quality without changing an existing broadcasting system by separately transmitting each broadcasting information forming broadcasting contents through a broadcasting system and a communication system. A broadcasting system(100) broadcasts 2D broadcasting information and transmits 3D broadcasting additional information to a communication system(200) between the 2D broadcasting information embodying 3D stereophonic broadcasting and the 3D broadcasting additional information. The communication system(200) transmits the 3D broadcasting additional information through a certain communication channel. A communication broadcasting fusion terminal(300) collects the 2D broadcasting information and the 3D broadcasting additional information and embodies a 3D stereophonic broadcasting picture, or embodies a 2D broadcasting picture on the basis of the 2D broadcasting information.

Description

3D stereoscopic broadcasting service system and method based on communication network {SYSTEM FOR SERVICING STEREOPHONIC BROADCAST BASED ON 3 DIMENSION COMMUNICATION NETWORK}

1 is a block diagram showing a 3D stereoscopic broadcast service system based on a communication network according to an embodiment of the present invention;

2 is a block diagram showing a broadcast system of the system shown in FIG. 1;

3 is a conceptual diagram illustrating image processing of two-dimensional broadcast information and three-dimensional broadcast additional information illustrated in FIG. 1 and then transmitted;

FIG. 4 is a flowchart illustrating an operation process of the 3D stereoscopic broadcast service system shown in FIG. 1.

<Description of Symbols for Main Parts of Drawings>

100: broadcasting system 110: broadcasting center server

120: packet mode transmitter 130: stream mode transmitter

140: ensemble multiplexer 150: high power amplifier

160: broadcast base station 170: OFDM modulator

180: divider 190: wired and wireless interface

200: communication system 210: three-dimensional stereoscopic broadcast service server

300: communication broadcasting convergence terminal 310: broadcasting module

320: communication module 330: fusion module

340: controller

The present invention relates to a 3D stereoscopic broadcast service system and method, and more particularly, to a 3D stereoscopic broadcast service system and method for implementing a 3D stereoscopic broadcast service using a communication system.

In general, in order to implement a 3D stereoscopic broadcast service, a broadcaster providing a conventional 2D broadcast service should add additional information for implementing a 3D stereoscopic broadcast screen to 2D broadcast information and transmit it together. 3D stereoscopic broadcasting should be composed of a 3D stereoscopic broadcast screen. The information constituting the 3D stereoscopic broadcast screen is similar to a stereoscopic recognition due to a difference in the perspective generated when two eyes of the person look at an object. The object is photographed at the same time by a large number of cameras and the obtained information is transmitted through a broadcasting system. In addition, the user terminal can receive the screen information transmitted from the two cameras in the same way that our brain receives the screen information of the two eyes to form a three-dimensional image, and can configure the signal processing into the three-dimensional screen information and express the three-dimensional screen. It delivers a three-dimensional stereoscopic broadcast screen to the user through the device.

However, until now, the technology for 3D stereoscopic broadcasting has mainly been a method of efficiently constructing 3D stereoscopic broadcasting information and delivering the configured information through a broadcasting system, and how the user terminal implements the broadcasting system. It is only concentrated on, and the technical research is not progressed in implementing the 3D stereoscopic broadcasting service more efficiently.

In addition, in order to transmit 3D stereoscopic broadcasting information through a broadcasting system, in order to construct broadcast information, 2D broadcasting information must be reconstructed into 3D stereoscopic broadcasting information, and to deliver the configured 3D stereoscopic broadcasting information. Since a lot of information must be transmitted through a limited broadcasting frequency, there must be a margin to transmit additional information. In addition, a method of transmitting 3D stereoscopic broadcast information should provide backward compatibility with a user terminal that receives 2D broadcast information.

Considering these points, in order to deliver 3D stereoscopic broadcasting information through the existing broadcasting system, the broadcasting center, delivery method, and user terminal all affect the broadcasting system. Therefore, the existing broadcasting system providing the 2D broadcasting service is provided. There is not enough infrastructure to provide 3D stereoscopic broadcasting service.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to separate and transmit broadcast information into a broadcast system and a communication system, and to collect broadcast information separately transmitted from each terminal in a three-dimensional stereoscopic manner. A communication network based 3D stereoscopic broadcast service system and method for realizing a broadcast screen are provided.

In accordance with a first aspect of the present invention, there is provided a three-dimensional stereoscopic broadcast service system based on a communication network, wherein the two-dimensional broadcast information is included among two-dimensional broadcast information and three-dimensional broadcast additional information for implementing three-dimensional stereoscopic broadcast. Broadcast system for transmitting the 3D broadcast additional information to the following communication system, a communication system for transmitting the 3D broadcast additional information through a predetermined communication channel, and the 2D broadcast information and the 3D It includes a communication broadcasting convergence terminal for collecting a broadcast additional information to implement a three-dimensional stereoscopic broadcast screen or a two-dimensional broadcast screen based on the two-dimensional broadcast information.

In addition, the three-dimensional stereoscopic broadcast service system based on the communication network according to the second aspect of the present invention for achieving the above object, the two-dimensional broadcast information and three-dimensional broadcast addition for the broadcast system provided to implement the three-dimensional stereoscopic broadcast Image processing the information to reduce the data transfer to a predetermined level.

In order to achieve the above object, a communication network based 3D stereoscopic broadcasting service method according to the third aspect of the present invention includes: (a) a 3D broadcasting content in which a broadcasting center server photographs a predetermined object with at least two cameras; Storing and managing; (b) distributing the 3D broadcast content into 2D broadcast information and 3D broadcast additional information through a broadcast system including the broadcast center server; and (c) distributing the 2D broadcast information. (D) transmitting the 3D broadcast additional information to a 3D stereoscopic broadcast service server of a wired / wireless connected communication system, and (e) the 3D stereoscopic broadcast service server is predetermined. And transmitting the 3D broadcast additional information to a communication broadcast fusion terminal connected to a communication channel.

Hereinafter, a preferred embodiment of a communication network based 3D stereoscopic broadcast service system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a 3D stereoscopic broadcast service system based on a communication network according to an embodiment of the present invention. As shown in FIG. 1, the 3D stereoscopic broadcast service system generates 2D broadcast information and 3D broadcast additional information through a plurality of cameras and implements the 2D broadcast information through a plurality of cameras to implement 3D stereoscopic broadcast. The broadcast system 100 for broadcast broadcasting in the direct direction, and the 3D broadcast additional information is transmitted to the communication system 200 through a wired / wireless interfacing process, and for transmitting the 3D broadcast additional information through a predetermined communication channel. The communication system 200 and a communication broadcasting convergence terminal 300 for implementing a 2D broadcast screen or a 3D stereoscopic broadcast screen according to a user's selection.

On the other hand, for a more detailed description will be described below with the broadcast system 100 as the DMB broadcast system 100.

Accordingly, the communication broadcasting convergence terminal 300 displays a three-dimensional stereoscopic broadcast screen by combining two-dimensional broadcast information and three-dimensional broadcast additional information, or implements a two-dimensional broadcast screen based on the two-dimensional broadcast information. To this end, the communication broadcasting convergence terminal 300 has a broadcasting module 310 for receiving broadcasted two-dimensional broadcast information according to a user's setting for two-dimensional broadcasting or three-dimensional stereoscopic broadcasting, and a three-dimensional stereoscopic broadcasting setting. In this case, the communication module 320 for receiving the 3D broadcast additional information, the 2D broadcast information, and the fusion module 330 for generating the 3D stereoscopic broadcast screen by combining the 3D broadcast additional information and the user Drive the broadcasting module 310 according to the input signal to implement a two-dimensional broadcast screen based on the applied two-dimensional broadcast information, or the operation of the communication module 320, broadcast module 310 and fusion module 330 It includes a controller 340 for generating a three-dimensional stereoscopic broadcast screen by generating a control signal for execution.

The controller 340 is implemented with microprocessors, analog and digital electronic circuits, and the like. In addition, when the user executes the 3D stereoscopic broadcast screen, the controller 340 downloads and stores the 3D broadcasting additional information from the communication system 200 through the communication module 320 and stores the 3D broadcasting additional information. 330 to implement a three-dimensional stereoscopic broadcast screen, when the user switches to a two-dimensional stereoscopic broadcast screen is implemented to execute a two-dimensional stereoscopic broadcast screen based on the two-dimensional broadcast information received through the broadcast module 310 desirable.

Further, the broadcast system 100 will be described in detail the internal configuration through the configuration diagram shown in FIG. As shown in FIG. 2, the broadcasting system 100 includes a broadcasting center server 110 for storing and managing two-dimensional or three-dimensional broadcasting contents formed based on an image of a predetermined object through a plurality of cameras. A stream mode transmitter 130 for encoding and transmitting a video signal and an audio signal of the broadcast content, a packet mode transmitter 120 and a stream mode transmitter 130 for encoding and transmitting a data signal of the broadcast content. And an ensemble multiplexer 140 for multiplexing the media stream broadcast information applied through the packet mode transmitter 120 and the 2D broadcast information and the 3D broadcast additional information output from the ensemble multiplexer 140. Communication system through a wired / wireless connection between a splitter 180, an OFDM modulator 170 for modulating and outputting 2D broadcast information, a high output amplifier 150, and 3D broadcast additional information. And a transmitting device for transmitting to 200.

The two-dimensional broadcast information indicates at least one video screen among at least two video screens of a predetermined object photographed through a plurality of cameras. Meanwhile, the 3D additional broadcast information refers to a video screen excluding the video screen which is the 2D broadcast information among the at least two video screens. For example, the first video screen formed by photographing the same object through two cameras may be set as the 2D broadcast information, and the second video screen may be set as the 3D broadcast additional information.

In addition, the 2D broadcast information or the 3D broadcast additional information may be implemented as a still image image or a moving picture.

In addition, the data signal through the packet mode transmitter 120 in the broadcast system 100 is PAD information associated with the 2D broadcast information or the 3D additional broadcast information, or the 2D broadcast information or the 3D additional information. It consists of NPAD information which is independent information not related to broadcasting information.

Furthermore, the communication system 200 interworks with a wired or wireless interface 190 connected to the broadcasting system 100, and receives the 3D additional broadcasting information to establish a communication channel call. It includes a three-dimensional stereoscopic broadcast service server 210 for transmission.

The 3D stereoscopic service server 210 stores and manages 3D additional broadcasting information provided from the broadcasting system 100 as a database, and sets up in response to a call setting request of a predetermined communication broadcasting convergence terminal 300. The communication broadcasting convergence terminal 300 is implemented to download the 3D broadcasting additional information selected by the user through the communication channel.

FIG. 3 is a conceptual diagram illustrating image processing of the 2D broadcast information and the 3D broadcast additional information shown in FIG. 1 and then transmitted. As shown in FIG. 3, the present invention relates to performing image processing on 2D broadcast information and 3D broadcast additional information constituting broadcast content provided by the broadcast center server 110. In addition, the image processing is to reduce the data transfer amount to a predetermined level by reducing the overlapping image through cross-correlation filtering between the 2D broadcast information and the 3D broadcast additional information. It may be implemented to execute through the equipment installed in a predetermined position of the data transmission path of (100).

As a further explanation, an efficient communication network-based three-dimensional stereoscopic broadcast service system having reduced data transmission amount is processed by image processing two-dimensional broadcasting information and three-dimensional broadcasting additional information for implementing three-dimensional three-dimensional broadcasting. The broadcast system 100 for broadcasting the 2D broadcast information after the reduction and transmitting the 3D broadcast additional information to the communication system 200, and transmitting the 3D broadcast additional information through a predetermined communication channel. A communication broadcasting convergence terminal for combining a communication system 200 and two-dimensional broadcasting information and three-dimensional broadcasting additional information to implement a three-dimensional stereoscopic broadcast screen or a two-dimensional broadcasting screen based on the two-dimensional broadcasting information; 300).

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the operation of the network-based 3D stereoscopic broadcast service system according to the present invention.

At least two cameras for generating broadcast content capture an image of a predetermined object (S100). The image screen photographed in step S100 is stored and managed as information via a broadcast center server 110 as a 2D broadcast service or a 3D stereoscopic broadcast service (S102). In addition, the broadcast system 100 including the broadcast center server 110 adopts corresponding broadcast content according to a series of broadcast schedules, and distributes the broadcast content into 2D broadcast information and 3D broadcast additional information (S104). ).

In step S104, after confirming whether the distributed broadcast information is 2D broadcast information or 3D broadcast additional information (S106), the 2D broadcast information is broadcast through the broadcast base station 160 through a modulation and high output amplification process. It is sent (S108). In addition, the 3D broadcast additional information is transmitted to the 3D stereoscopic broadcast service server 210 of the communication system 200 through the wired / wireless interface 190 (S110), and the 3D stereoscopic broadcast service server 210 and the user. The communication channel between the communication broadcast convergence terminal 300 of the communication is in progress (S112). Thereafter, the communication broadcast fusion terminal 300 downloads 3D broadcast additional information for predetermined broadcast content from the 3D stereoscopic broadcast service server 210 (S114). In addition, the communication broadcasting convergence terminal 300 combines the 2D broadcasting information provided through the broadcasting system 100 and the 3D broadcasting additional information downloaded through the communication system 200 and implements the 3D stereoscopic broadcasting screen. In operation S116, the 3D stereoscopic broadcast screen generated in step S116 is displayed as a terminal screen (S118).

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and changed within the scope of the invention without departing from the spirit and scope of the invention described in the claims below. I can understand that you can.

Therefore, in the present invention, by separately transmitting each broadcast information constituting the broadcast content through a broadcast system and a communication system, the user can be provided with a 3D stereoscopic service with improved quality without changing the existing broadcast system, the user's selection According to the present invention, the 2D broadcast service or the 3D stereoscopic broadcast service can be easily differentiated and provided, and the service provider can grasp the service form of the broadcast content provided for each user.

Claims (17)

A broadcast system for broadcasting the 2D broadcast information among 2D broadcast information and 3D broadcast additional information for implementing 3D stereoscopic broadcast, and transmitting the 3D broadcast additional information to the following communication system; A communication system for transmitting the 3D broadcast side information through a predetermined communication channel; And And a communication broadcasting convergence terminal for combining the 2D broadcast information and the 3D broadcast additional information to implement a 3D stereoscopic broadcast screen or a 2D broadcast screen based on the 2D broadcast information. 3D stereoscopic broadcasting service system based on communication network. The method of claim 1, wherein the broadcast system A broadcasting center server for storing and managing two-dimensional or three-dimensional broadcasting contents; A stream mode transmitter for encoding and transmitting a video signal and an audio signal of the broadcast content; A packet mode transmitter for encoding and transmitting a data signal of the broadcast content; An ensemble multiplexer for multiplexing the media stream broadcast information applied through the stream mode transmitter and the packet mode transmitter; A distributor for distributing the 2D broadcast information and the 3D broadcast additional information output from the ensemble multiplexer; An OFDM modulator and a high output amplifier for modulating and outputting the 2D broadcast information; And And a transmitter for transmitting the 3D broadcast additional information to the communication system through a wired or wireless connection. The method of claim 2, wherein the data signal is Communication network-based three-dimensional stereoscopic broadcasting, which is PAD information related to the two-dimensional broadcast information or the three-dimensional additional broadcast information, or NPAD information that is independent information not related to the two-dimensional broadcast information or the three-dimensional additional broadcast information. Service system. The system of claim 1 or 2, wherein the broadcasting system 3D stereoscopic broadcasting service system based on a communication network, characterized in that the DMB broadcasting system. The system of claim 1, wherein the communication system is A 3D stereoscopic broadcast service server interoperating with the broadcasting system through a wired or wireless interface and including a 3D stereoscopic broadcasting service server for receiving the 3D additional broadcasting information and transmitting the 3D additional broadcasting information to the communication broadcasting converged terminal. 3D stereoscopic broadcasting service system. The method of claim 1, wherein the two-dimensional broadcast information A communication network based 3D stereoscopic broadcast service system, characterized in that at least one still image image or a video among at least two or more still image images or moving images. The method of claim 6, wherein the 3D additional broadcast information A communication network based 3D stereoscopic broadcasting service system, characterized in that, from at least two still image images or moving images for the object, except for the 2D broadcasting information. The method of claim 1, wherein the communication broadcasting convergence terminal A broadcast module for receiving the 2D broadcast information; A communication module for receiving the 3D broadcast additional information; A fusion module for generating a 3D stereoscopic broadcast screen by combining the 2D broadcast information and the 3D broadcast additional information; And A controller for implementing a two-dimensional broadcasting screen based on the two-dimensional broadcasting information or generating a control signal for executing an operation of the communication module and the fusion module according to a user's selection; 3D stereoscopic broadcasting service system based on a communication network, characterized in that. The method of claim 8, wherein the controller When the user executes the 3D stereoscopic broadcasting screen, the 3D broadcasting additional information is downloaded and stored from the communication system through the communication module, and the 3D stereoscopic broadcasting screen is implemented through the fusion module. 3D stereoscopic broadcast service system based on a communication network, characterized in that when switching to the three-dimensional stereoscopic broadcast screen to execute a two-dimensional stereoscopic broadcast screen based on the two-dimensional broadcast information received through the broadcasting module.  In the three-dimensional stereoscopic broadcast service system including a broadcasting system, a communication system and a communication broadcasting convergence terminal for implementing three-dimensional stereoscopic broadcasting, The broadcast system is a communication network based 3D stereoscopic broadcast service system, characterized in that to reduce the data transmission amount to a predetermined level by image processing the 2D broadcast information and 3D broadcast additional information for implementing the 3D stereoscopic broadcast. The method of claim 10, wherein the image processing is Communication network based three-dimensional stereoscopic broadcast service system, characterized in that by reducing the overlapping image through cross-correlation filtering between the two-dimensional broadcast information and the three-dimensional broadcast additional information to reduce the data transmission amount to a predetermined level. (A) storing and managing three-dimensional broadcast contents obtained by capturing a predetermined object with at least two cameras by a broadcasting center server; (B) distributing the 3D broadcast content into 2D broadcast information and 3D broadcast additional information through a broadcast system including the broadcast center server; (C) modulating and amplifying the two-dimensional broadcast information to output a broadcasting signal; (D) transmitting the 3D broadcast additional information to a 3D stereoscopic broadcast service server of a wired / wireless connected communication system; And (E) transmitting, by the 3D stereoscopic service server, the 3D broadcast additional information to a communication broadcast fusion terminal connected to a predetermined communication channel. The method of claim 12, wherein the method is (F) downloading and storing the 3D broadcasting additional information by the communication broadcasting convergence terminal, and collecting the 2D broadcasting information and the 3D broadcasting additional information to display a 3D stereoscopic broadcasting screen. 3D stereoscopic broadcast service method based on a communication network. The method of claim 13, wherein the step (bar) When the communication broadcasting convergence terminal switches the 3D stereoscopic broadcast screen to the 2D broadcast screen according to the user's setting, the downloading of the 3D broadcast additional information is stopped, And executing the downloading of the 3D broadcast additional information. The method of claim 13, wherein step (b) At least one still image or video constituting the 3D broadcasting content is the 2D broadcasting information, and the remaining still image or video except the 2D broadcasting information is the 3D broadcasting additional information. 3D stereoscopic broadcasting service method based on communication network. The method of claim 13, wherein step (b) And image data processing the 2D broadcast information and the 3D broadcast additional information to reduce a data transmission amount to a predetermined level. The method of claim 16, wherein step (b) And performing image processing to reduce overlapping images through cross-correlation filtering between the 2D broadcast information and the 3D broadcast additional information.

Images