KR101194825B1 - System and Method for Digital Broadcasting Supplying Multi Angle Display - Google Patents

Abstract

The present invention relates to a multi-angle digital broadcasting system and a method thereof, wherein the digital broadcasting transmitting side transmits the game player's state data separately from the broadcast stream, and the digital broadcasting receiving side receives the data from the game player's state data. By extracting the state data according to the angle of the selected player to play the video according to the angle of the selected player, it is possible to obtain a bandwidth saving effect and to allow viewers to watch the game broadcast more realistically.

Description

Multi-angle digital broadcasting system and method thereof {System and Method for Digital Broadcasting Supplying Multi Angle Display}

1 is a block diagram of a digital broadcast transmission apparatus according to the present invention.

2 is a block diagram of a digital broadcast receiving apparatus according to the present invention;

3 is a view showing a preferred embodiment of a screen configuration capable of effectively watching a multi-angle broadcast according to the present invention.

4 is a diagram illustrating a user interface menu structure for multi-angle support according to the present invention.

5 is a view showing an operation flow in the digital broadcast receiving apparatus when the viewing angle is converted according to the present invention.

Description of the Related Art [0002]

110: game server 120: broadcast server

130: SI / PSI generation unit 140: multiplexer

200: control unit 210: decoder

220: section filter 230: object DB

240: game playback unit 250: OSD processing unit

The present invention relates to a multi-angle digital broadcasting system and a method thereof, and more particularly to a multi-angle digital broadcasting system and method for reproducing a game video at an angle of a specific player according to a viewer's choice in implementing game broadcasting. It is about.

When sports events such as baseball, golf, soccer and the like are relayed in the form of airwaves or cable broadcasting, a plurality of cameras are placed in a stadium and are produced to provide viewers with a play situation of players from various angles. However, even in this case, the screen provided to the viewers is only one screen selected by the broadcaster among the produced screens, and the viewer is not given a choice about the screen to be viewed.

Recently, sports games are relayed using the Internet. In this case, not only the relay screen but also a table or animation about a player or a game can be used to show the game progress and results.

In the genre of dramas and movies, it is difficult to support multi-angles for the entire contents due to production conditions and huge production costs, and there have been attempts to produce broadcasts that support multi-angles for live broadcasting-oriented sports broadcasting.

In this multi-angle relay, images of various angles recorded by a plurality of cameras installed in various places in the stadium are transmitted through different channels, and the user can select the desired angle by changing the channel if necessary.

In addition, the current game broadcast broadcasts a single content produced by editing the video and audio of each player, announcer, audience, etc. photographed with multiple cameras. The contents of the broadcasting contents are alternately shown when the game starts, and when major events (battle scenes, etc.) occur, the screen contents are switched to broadcast the main events.

Problems that arise when following this conventional approach include: First, as many channels as the number of angles (broadcast bands) are required. Second, the viewer's interest is halved due to a situation in which the viewer's desired player's play cannot be seen through broadcast editing or the like. Third, since the selection of the angle is passive, there is no opportunity for the viewer to select the viewing angle. Fourth, a lot of production costs are required for the production of content that supports multi-angle.

In order to solve the above problems, the present invention provides a multi-angle digital broadcast in which state data of each player, which is distinguished from the existing broadcast stream, is composed of a broadcast stream and one channel, and the receiver is used to play the video. It is an object of the present invention to provide a system and a method thereof.

According to an aspect of the present invention, there is provided a multi-angle digital broadcasting system comprising: a digital broadcast transmitting apparatus for transmitting state data of each of a plurality of game flares representing a character in a game separately from a broadcast stream; And a digital broadcast receiver for receiving the state data of each of the plurality of game players, extracting state data according to the angle of the player selected by the viewer, and playing a video according to the angle of the selected player.
The digital broadcast transmitting apparatus may include: a game server extracting state data and game information of each of the plurality of game players; And an SI / PSI generation unit configured to receive state data and game information of each of the plurality of game players from the game server and to include in a private section of a service information / program specific information (SI / PSI) to configure the SI / PSI. do.
The state data of each of the plurality of game players includes information regarding at least one of a game player's position, a moving direction, a speed, a state, and a building position.
The apparatus for digital broadcast transmission further includes a multiplexer configured to output the SI / PSI generated by the SI / PSI generator and the broadcast stream as one channel.
The apparatus for receiving digital broadcasting includes: a section filter for separating state data for each of a plurality of game players in a private section of an SI / PSI, and extracting only state data for a player selected by a viewer; An object DB for storing all objects related to game play; And a game playback unit that performs video playback according to an angle of the selected player using state data of the selected player extracted by the section filter and a game-related object stored in the object DB.
The section filter extracts game information about a game to be played in a private section of the SI / PSI, and the game information includes at least one of a map used in the game, an overall game schedule, various odds of each player, and a record. It includes.
The apparatus for receiving digital broadcasting further includes an OSD processing unit which processes the graphics so that the game information extracted by the section filter is displayed in an OSD form.
The apparatus for receiving digital broadcasting further includes a video / audio output unit configured to configure a moving picture or a broadcast stream output by the game player as a main screen and display the output of the OSD processing unit in OSD form.
The digital broadcast receiving apparatus causes the section filter to extract state data and game information about a player selected by a viewer from data of a private section, and outputs state data about any player when the viewer does not select a specific player. The control unit further controls the section filter so as not to.
The controller controls the video / audio output unit to output a broadcast stream when the viewer does not select a specific player.
On the other hand, according to an aspect of the digital broadcast method for game broadcasting according to the present invention, the digital broadcast transmission step of transmitting the state data of each of the plurality of game players representing the character in the game to the broadcast stream; And receiving the state data of each of the plurality of game players, extracting state data according to the angle of the player selected by the viewer from the data, and playing a video according to the angle of the selected player.
The digital broadcasting transmission step may include extracting state data and game information of each of a plurality of game players; And receiving state data and game information of each of the plurality of game players from the game server, and including them in a private section of a service information / program specific information (SI / PSI) to configure the SI / PSI.
The state data of the player of each of the plurality of game players includes information about at least one of the position, direction of movement, speed, state, and location of the game player.
The digital broadcasting transmission step may further include a multiplexing step of outputting the SI / PSI configured by including the state data and game information of each of the plurality of game players in a private section and a broadcast stream as one channel.
The digital broadcasting receiving step may include: section filtering step of separating state data for each of a plurality of game plays in a private section of an SI / PSI, and extracting only state data about a player selected by a viewer; And playing the video according to the angle of the selected player using state data of the selected player extracted by the section filter and previously stored game-related objects.
The section filtering step includes extracting game information about a game to play in a private section of the SI / PSI.
The game information includes at least one of a map used for the game, an overall game schedule, various odds of each player, and a record.
The digital broadcasting receiving step may further include an OSD processing step of graphic processing the extracted game information to be displayed in an OSD form.

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Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to the drawings.

1 shows a block configuration of a digital broadcast transmission device according to the present invention.

As shown in FIG. 1, the apparatus for transmitting digital broadcast includes a game server 110, a broadcast server 120, an SI / PSI generator 130, a multiplexer 140, and a modulator, a synthesizer, and the like. It may include.

The game server 110 provides software for implementing a game, and may be implemented to provide a plurality of game software instead of one. The game server 110 extracts state data and game information about each player, which is a character in the game, and transmits the extracted state data and game information to the SI / PSI generation unit 130.

The state data of each player includes all data capable of reproducing the game at the angle of each player on the receiving side. For example, information about the position of the character, the direction of movement, the speed, the state, the position of the building, and the like is included. In addition, the player may possess information on items (attack tools, defense tools, etc.) possessed by the player, the current energy accumulation state of the player, the level of the player, and the like. This data is essential for the game.

On the other hand, the game information is intended to provide game viewers with detailed information about the game they are watching, and includes a map used for the game, an overall game schedule, various odds of each player, a record, and the like.

The SI / PSI (Service Information / Program Specific Information) generation unit 130 plays a role in generating channel information, program map, event information, and the like of a broadcast. In addition, the game server 110 receives the player status data and game information for multi-angle support, and transmits it to the multiplexer 140 by including it in a private section of the SI / PSI.

Here, the service information includes information related to a broadcast service such as a channel number, a channel name, a program name, a broadcast date, a broadcast start time, a program identification number, a program description, and the like. In addition, PSI (Program Specific Information) is information about a program constituting a stream, and includes PAT (Program Association Table), PMT (Program Map Table), CAT (Conditional Access Table), and the like. Through the PSI table, the digital broadcast reception device may perform demultiplexing on a transport stream (TS) received from the digital broadcast transmission device.

The PAT has list information about all programs included in a TS, a program number, and a PID (Program ID) of a PMT. The PAT is transmitted without being encrypted. The PMT has information about each program, and includes information about PID of a packet having PID and clock information corresponding to audio, video, and data of each program. The CAT (Conditional Access Table) provides a connection between the Entitlement Management Message (EMM) stream and special parameters related to the CA system, and indicates the PID of the EMM TS packet.

The broadcast server 120 receives and edits the entire data about the game in progress from the game server, and includes a commentary by the narrator to produce a basic broadcast stream similar to the existing broadcast format. In the case of a broadcasting system that professionally supports only game broadcasting, the game server 110 and the broadcasting server 120 may be implemented in one form.

The multiplexer 140 serves to centralize signals of audio, video, and data into one by putting security and program information. In the present invention, the player state data, game information, and broadcasting received from the SI / PSI generator 130 are provided. The broadcast stream provided from the server 120 is bundled into one channel.

The player state data, game information, and broadcast stream concentrated through the multiplexer 140 are transmitted to the receiver through error correction and modulation. To this end, the digital broadcast transmission apparatus may further include a modulator for modulating each channel generated by the multiplexer 140 and a synthesizer for synthesizing the modulated signal.

2 shows a block configuration of a digital broadcast receiving apparatus according to the present invention.

The digital broadcast receiver of FIG. 2 includes a controller 220, a decoder 210, a section filter 220, an object DB 230, a game player 240, an OSD processor 250, a renderer 260, and video / An audio output unit 270 and a user interface unit 280 are included.

The digital broadcast receiver of FIG. 2 performs a demultiplexing process of tuning a desired channel from the received broadcast signal to separate and extract the TS, and extracting the MPEG video packet and the SI / PSIP corresponding to the broadcast stream from the extracted TS. Decodes the MPEG video packet to play the video.

In the present invention, since the process after the decoding process of the broadcast stream, the state data and the game information is the core, in FIG. 2, the block after the decoder 210 is shown among the blocks constituting the digital broadcast receiving apparatus. It was.

The broadcast stream and the SI / PSIP are decoded by the decoder 210. The decoder 210 separately transmits the SI / PSIP to the section filter 220 and the broadcast stream to the renderer 260.

Among these, the broadcast stream is video / audio processed by the renderer 260. The renderer injects realism in consideration of external information such as light source, position, and color. That is, a realistic three-dimensional image is produced by considering shadows, colors, and densities that appear differently depending on external information such as shape, position, and lighting.

The section filter 220 extracts game data and state data of the player included in the private section of the SI / PSIP received from the decoder 210. The extracted player state data includes state data of all players in the game, and the section filter 220 performs filtering for extracting state data of the player selected by the viewer.

The control unit 200 and the user interface unit 280 are configured to control this role of the section filter 220. The user interface unit 280 receives an angle change command input from the viewer and provides the command to the controller 200.

When the control unit 200 receives the angle change command from the user interface unit 280, the control unit 200 requests the section filter 220 to filter the state data regarding the corresponding player. The control unit 200 also receives a command related to a viewer's PIP window, OSD setting / release, etc. input through the user interface unit 280 and controls each component for performing a corresponding operation. When setting to display at an angle different from the angle of the main screen on the (sub-screen), the section filter 220 controls to filter not only the main screen but also data regarding the player to be displayed on the sub-screen.

When the viewer requests the game information to be displayed through the OSD, the controller 200 controls the section filter to filter the game information and provide the same to the OSD processor 250.

Meanwhile, the game player 240, which receives the state data of a specific player from the section filter 220, uses an angle of the player selected by the viewer using the state data of the corresponding player and various objects of the game stored by the object DB 230. Play the screen on. Player state data refers to all the data used to reproduce the game using the object DB. It has already been seen that it includes the character's position, direction of movement, speed, state, building position, and so on.

The object DB 230 stores data about all objects included in the game, such as character images, background images, and sounds that appear in the game. The initialization of the object DB 230 may vary depending on how the game broadcast is provided, depending on whether the game broadcast is provided or not, depending on whether it is a cable broadcast, a satellite broadcast, or an Internet broadcast over an IP (Internet Protocol) network. That is, the object DB 230 receives and decodes data for playing a game and stores all data about the game object in advance before filtering the private section. Provides the object data stored in the game player 240.

On the other hand, the game information filtered by the section filter 220 may be provided in the form of an OSD, in which case the game information may be provided in a form overlapping the broadcast content provided as the main screen. In general, an On Screen Display (OSD) refers to a function of directly displaying on a screen information required by a user or required to know about a monitor. The game information is converted into the OSD form by the OSD processor 250 illustrated in FIG. 2. As such, when game information is provided in the form of an OSD, broadcast or playback video and guide information in the form of an OSD may be synthesized and output.

The video / audio output unit 270 combines a video stream of a specific angle reproduced by the game player 240 or a broadcast stream output from the renderer 260 and an OSD regarding game information input from the OSD processor 250 into one. do. The synthesized moving image is displayed after being encoded so that it can be output to a display unit such as a TV.

The video / audio output unit 270 outputs the data when there is data input from the game player 240, and outputs a broadcast stream when no data is input from the game player 240.

When a viewer wants to watch a broadcast stream provided by a broadcasting station without selecting an angle of a separate player, two methods are largely implemented by implementing the control unit 200, the section filter 220, and the video / audio output unit 270. You can think of an example.

One is that if the user wants to watch the broadcast stream, if the section filter 220 does not output any player state data, the broadcast stream output from the renderer 260 to the video / audio output unit 270 is output. In another embodiment, the controller 200 controls the video / audio output unit 270 to display the broadcast stream output from the renderer 260 regardless of the output of the section filter 220. You can choose the method.

As shown in FIG. 2, in the case of the existing broadcast stream, the output of the decoder 210 is processed by the renderer 260, but as shown in FIG. 2 for game playback at each player angle according to the present invention, It can be seen that the section filter 220 is configured to filter only the state data of the corresponding player and transmit the filtered state data to the game player 240.

3 illustrates an exemplary embodiment of a screen configuration for effectively watching a multi-angle broadcast according to the present invention.

As shown in FIG. 3, the broadcast screen according to the present invention provides angle information 310 indicating information on an angle displayed on the main screen 300, an OSD display 320 displaying a game detailed information, and a sub-screen. And a PIP window 330.

The angle information 310 may display the angle of the player currently displayed on the main screen 300, and may display the current angle by basic broadcasting, player name, and the like.

The OSD display 320 displays information about the game currently being broadcast, where the game information is for providing game viewers with detailed information about the game, and includes a map used for the game, an entire game schedule, and each player. Includes various odds, totals and more.

The PIP window 330 is a window configured for displaying the angle of the player separate from the angle of the player provided as the main screen, and in some cases, a plurality of PIP windows may be set. Here, PIP (Picture In Picture) means to display another image on one video, as the term means.

4 illustrates a user interface menu structure for multi-angle support according to the present invention.

The menu illustrated in FIG. 4 may be applied to a remote controller or the like that viewers mainly use when watching a broadcast.

The main angle switching menu performs a function of changing an angle corresponding to the main screen 300 shown in FIG. 3. It may be possible to configure angle rotation with one button to switch angles, and to configure each button separately for each angle, but the former method is more preferable in terms of scalability and efficiency. .

The PIP angle switching menu performs a function of changing the angle of the screen displayed by the PIP window 330 of FIG. 3. In this regard, the PIP setting / release menu sets the PIP window 330 to determine whether to display an angle of a separate player in addition to the main screen.

The audio switching menu provides a function of selecting audio corresponding to a video played on the main screen and audio of a broadcast stream.

The game information menu is a menu for determining whether to display an OSD related to game detailed information provided through the OSD display 320 of FIG. 3. When the game information menu is determined to display detailed information, a map used for the game, an entire game schedule, Players' odds, achievements, etc. are displayed.

5 is a flowchart illustrating the operation of the digital broadcast receiver when the viewing angle is converted according to the present invention.

When the user selects the angle of the specific player (S501), the user interface unit 280 receives the user's command and reports to the control unit 200 (S502). The control unit 200 instructs to perform the filtering according to the angle selected by the section filter 220 (S503). The section filter 200 extracts the state data of the player corresponding to the selected angle and provides it to the game player 240 (S504). When the OSD function for displaying game information is set, the section filter 200 also extracts game information. Provided at 250 (S505).

When the game player 240 receives the state data of the corresponding player from the section filter 220, the game player 240 requests object data about a game stored by the object DB 230 (S506), receives the data (S507), and uses the same. Play the video from the angle of the selected player. The reproduced video is transmitted to the video / audio output unit 270 to form a main screen (S508).

On the other hand, the OSD processor 250 processes the game information provided by the section filter 220 to display in the OSD form to provide to the video / audio output unit 270 (S509). The video / audio output unit 270 receives and synthesizes data to configure a main screen and OSD data, which is game information, and configures and displays the entire screen (S510). At this time, even if the video / audio output unit 270 is receiving the broadcast stream, if the state data regarding the specific player is input through the section filter 220, the angle of the player selected by the viewer is preferentially displayed. . On the other hand, when the viewer does not select a separate player to display a broadcast stream.

As described above, the present invention allows a user to watch a broadcast at an angle of a selected player by selecting a desired player at a desired time point instead of setting a plurality of channels for each angle by using a feature of a game. For this purpose, the game broadcasting server transmits only the state data (character type, character position, number of characters, etc.) of each player, instead of the audio / video stream corresponding to each angle, and the set-top box receives the state data of each player. The aim is to realize the multi-angle function by reproducing the player's play using the images and sounds of all the objects in the game such as the character image.

The present invention may be easily applied not only to games but also to animations produced and broadcast in multi-angle video.

In order to overcome the difficulty of securing bandwidth due to channel allocation for each angle for multi-angle broadcasting support, the present invention separates the state data for each player into one channel to obtain a bandwidth saving effect and provides a viewer with a bandwidth saving effect. Make game broadcasting more realistic.

Claims (19)

In the digital broadcasting system for game broadcasting, A digital broadcast transmission device for transmitting status data of each of a plurality of game flares representing a character in a game separately from a broadcast stream; Wow And a digital broadcast receiver for receiving the state data of each of the plurality of game players, extracting state data according to the angle of the player selected by the viewer, and playing a video according to the angle of the selected player. The digital broadcast transmission device, A game server extracting state data and game information of each of the plurality of game players; Wow A SI / PSI generation unit configured to receive state data and game information of each of the plurality of game players from the game server and to include in a private section of a service information / program specific information (SI / PSI) to configure the SI / PSI; Multi angle digital broadcasting system. delete The method of claim 1, The state data of each of the plurality of game players is A multi-angle digital broadcasting system including information about at least one of a game player's position, direction of movement, speed, state, and location of a building. The method of claim 1, The digital broadcast transmission device, And a multiplexer configured to output the SI / PSI and the broadcast stream generated by the SI / PSI generator as one channel. The method of claim 1, The digital broadcast receiving device, A section filter for separating state data for each of a plurality of game players in a private section of the SI / PSI, and extracting only state data for the player selected by the viewer; An object DB for storing all objects related to game play; And And a game player configured to play a video according to an angle of a selected player using state data of the selected player extracted by the section filter and a game-related object stored in the object DB. 6. The method of claim 5, The section filter, Multi-angle digital broadcast system that extracts game information about games to play in a private section of SI / PSI. The method according to claim 6, The game information, A multi-angle digital broadcasting system including at least one of a map used for a game, an entire game schedule, various odds of each player, and a record. The method according to claim 6, The digital broadcast receiving device, And an on-screen display (OSD) processing unit for graphic processing of the game information extracted by the section filter to be displayed in an on screen display (OSD) form. 9. The method of claim 8, The digital broadcast receiving device, And a video / audio output unit configured to configure a video or broadcast stream output by the game play unit as a main screen, and display the output of the OSD processor in OSD form. 10. The method of claim 9, The digital broadcast receiving device, The section filter causes the viewer to extract the state data and game information of the selected player among the data of the private section, but does not output the state data of any player when the viewer does not select a specific player. A multi-angle digital broadcasting system further comprising a control unit. The method of claim 10, The control unit, And the video / audio output unit controls the video / audio output unit to output a broadcast stream when the viewer does not select a specific player. In the digital broadcasting method for game broadcasting, A digital broadcast transmission step of transmitting status data of each of a plurality of game players representing characters in a game separately from the broadcast stream; Wow Receiving a state data of each of the plurality of game players, extracting state data according to the angle of the player selected by the viewer, and playing a video according to the angle of the selected player; The digital broadcast transmission step, Extracting state data and game information of each of the plurality of game players; Wow Receiving status data and game information of each of a plurality of game players from the game server, and including them in a private section of a service information / program specific information (SI / PSI) to configure the SI / PSI; Way. delete 13. The method of claim 12, The state data of each of the plurality of game players, A multi-angle digital broadcasting method comprising information about at least one of a game player's position, direction of movement, speed, state, and location of a building. 13. The method of claim 12, The digital broadcast transmission step, And a multiplexing step of outputting the SI / PSI configured by including the state data and game information of each of the plurality of game players in a private section and a broadcast stream as one channel. 13. The method of claim 12, The digital broadcast receiving step, A section filtering step of separating state data for each of a plurality of game plays in a private section of the SI / PSI and extracting only state data for a player selected by the viewer; Wow And playing the video according to the angle of the selected player using state data of the selected player extracted by the section filter and previously stored game-related objects. 17. The method of claim 16, The section filtering step, And extracting game information about a game to be played in a private section of the SI / PSI. The method of claim 17, The game information, A multi-angle digital broadcasting method comprising at least one of a map used in a game, an entire game schedule, various odds of each player, and a record. The method of claim 17, The digital broadcast receiving step, And processing the graphics to display the extracted game information in the form of an OSD (On Screen Display).

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