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JP2011082982A - System for providing multi-angle broadcasting service - Google Patents

System for providing multi-angle broadcasting service Download PDF

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Publication number
JP2011082982A
JP2011082982A JP2010226030A JP2010226030A JP2011082982A JP 2011082982 A JP2011082982 A JP 2011082982A JP 2010226030 A JP2010226030 A JP 2010226030A JP 2010226030 A JP2010226030 A JP 2010226030A JP 2011082982 A JP2011082982 A JP 2011082982A
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video
source
screen
size
source video
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Inventor
Nac-Woo Kim
ナク ウ キム
Ilkyun Park
イルキョン パク
Sim-Kwon Yoon
シム−クワン ヨン
Kyunghun Kim
ギョンフン キム
Byung-Tak Lee
ビョン−テ イ
Jai Sang Koh
チャイ シン コ
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Electronics and Telecommunications Research Institute ETRI
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Electronics and Telecommunications Research Institute ETRI
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/21—Server components or server architectures
    • H04N21/218—Source of audio or video content, e.g. local disk arrays
    • H04N21/21805—Source of audio or video content, e.g. local disk arrays enabling multiple viewpoints, e.g. using a plurality of cameras
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6587—Control parameters, e.g. trick play commands, viewpoint selection

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-angle broadcasting service by minimizing a change of a receiver. <P>SOLUTION: The system for providing a multi-angle broadcasting service is provided. A transmission apparatus may transmit, to a reception apparatus, not only source images obtained by photographing one event at various angles but also a multi-screen image including the source images. The reception apparatus may receive the multi-screen image and may decode a source image based on a user selection. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は放送サービスを提供するシステムに関し、さらに具体的には、１つのイベントを様々な角度で撮影した映像を送信するマルチアングル放送サービスの提供システムに関する。   The present invention relates to a system for providing a broadcast service, and more specifically, to a system for providing a multi-angle broadcast service for transmitting video obtained by photographing one event at various angles.

マルチアングル放送サービスは、１つのイベントを様々な角度で撮影してユーザにサービスするものである。   The multi-angle broadcasting service is a service for photographing a single event at various angles and serving the user.

図１は、本発明に係るマルチアングル放送サービスの概念を示す図である。図１において、野球場１１０で行われる野球競技が１つのイベントになり得る。野球競技を中継するためには、外野方向１２１、１２２、１２３、内野方向１２４、１２５、１２６等の様々な方向に野球場の隅々の姿を撮影しなければならない。一般的に放送局は野球競技の進行に応じて最も重要な場面を撮影した映像を選択してユーザに送信する。   FIG. 1 is a diagram showing a concept of a multi-angle broadcasting service according to the present invention. In FIG. 1, a baseball game held at the baseball field 110 can be an event. In order to relay a baseball game, it is necessary to shoot every corner of the baseball field in various directions such as outfield directions 121, 122, 123 and infield directions 124, 125, 126. In general, a broadcasting station selects and transmits to a user a video that captures the most important scene according to the progress of a baseball game.

マルチアングル放送サービスは、野球競技を互いに異なる位置で撮影した複数のソース映像の中、ユーザが選択した１つのソース映像をユーザに提供する放送サービスである。ユーザは、放送局が選択したソース映像ではなく、ユーザが直接に選択したソース映像を視聴することができる。ユーザが所望する角度で撮影したソース映像が視聴できるため、ユーザの満足度が向上される。   The multi-angle broadcasting service is a broadcasting service that provides a user with one source video selected by the user from among a plurality of source videos taken at different positions in a baseball game. The user can view the source video directly selected by the user, not the source video selected by the broadcast station. Since the source video shot at the angle desired by the user can be viewed, user satisfaction is improved.

ユーザはディスプレイ装置１３０を用いて複数のソース映像１３１、１３２、１３３、１３４、１３５、１３６を同時に視聴することができる。ユーザは複数のソース映像１３１、１３２、１３３、１３４、１３５、１３６のうち、ユーザが所望する時点で撮影した１つのソース映像を選択する。ユーザは選択したソース映像を視聴することができる。   The user can view a plurality of source videos 131, 132, 133, 134, 135, 136 simultaneously using the display device 130. The user selects one source video imaged at a time desired by the user from among the plurality of source video images 131, 132, 133, 134, 135, 136. The user can view the selected source video.

本発明の目的は、受信機の変化を最小化してマルチアングル放送サービスを提供することにある。   An object of the present invention is to provide a multi-angle broadcasting service while minimizing changes in a receiver.

本発明の目的は、マルチアングル放送サービスを受信することのできる安価な受信機を提供することにある。   An object of the present invention is to provide an inexpensive receiver capable of receiving a multi-angle broadcasting service.

本発明は、前記の目的を達成するために、複数の時点から撮影されたソース映像を受信する受信部と、前記複数のソース映像を含むマルチ画面映像を生成するマルチ画面映像生成部と、前記マルチ画面映像を受信装置に送信する送信部とを含む送信装置を提供する。   In order to achieve the above object, the present invention provides a receiving unit that receives source videos taken from a plurality of time points, a multi-screen image generating unit that generates a multi-screen image including the plurality of source images, Provided is a transmission device including a transmission unit that transmits a multi-screen video to the reception device.

本発明の一側面によれば、複数の時点から撮影されたソース映像と前記複数のソース映像を含むマルチ画面映像を受信する映像受信部と、前記マルチ画面映像に含まれたソース映像のうちのいずれか１つのソース映像に対するユーザの選択を受信するユーザ選択受信部と、前記ユーザの選択によるソース映像を復号化する映像復号化部とを含む受信装置が提供される。   According to an aspect of the present invention, a video receiver that receives a source video captured from a plurality of points in time and a multi-screen video including the plurality of source videos, and a source video included in the multi-screen video. A receiving apparatus is provided that includes a user selection receiving unit that receives a user selection of any one source video and a video decoding unit that decodes the source video based on the user selection.

本発明の更なる側面によれば、複数の時点から撮影されたソース映像と前記複数のソース映像を含むマルチ画面映像を受信する映像受信部と、前記マルチ画面映像に対するメタデータを受信するメタデータ受信部と、前記マルチ画面映像に基づいて選択された前記ソース映像を前記メタデータに基づいて復号化する映像復号化部とを含む受信装置が提供される。   According to a further aspect of the present invention, a video receiver that receives a source video captured from a plurality of points in time and a multi-screen video including the plurality of source videos, and a metadata that receives metadata for the multi-screen video. A receiving device is provided that includes a receiving unit and a video decoding unit that decodes the source video selected based on the multi-screen video based on the metadata.

本発明によれば、受信機の変化を最小化してマルチアングル放送サービスを提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the change of a receiver can be minimized and a multi-angle broadcast service can be provided.

本発明によれば、マルチアングル放送サービスを受信できる安価な受信機を提供することができる。   According to the present invention, an inexpensive receiver capable of receiving a multi-angle broadcasting service can be provided.

本発明に係るマルチアングル放送サービスの概念を示す図である。It is a figure which shows the concept of the multi-angle broadcasting service which concerns on this invention. ユーザの選択に応じてマルチ画面映像とソース画面映像を切り替えて復号化する概念を示す図である。It is a figure which shows the concept which switches and decodes a multi screen image | video and a source screen image | video according to a user's selection. 本発明の一実施形態に係る送信装置の構造を示すブロック図である。It is a block diagram which shows the structure of the transmitter which concerns on one Embodiment of this invention. 本発明の一実施形態に係る受信装置の構造を示すブロック図である。It is a block diagram which shows the structure of the receiver which concerns on one Embodiment of this invention. 本発明の他の実施形態に係る受信装置の構造を示すブロック図である。It is a block diagram which shows the structure of the receiver which concerns on other embodiment of this invention.

図２は、ユーザの選択に応じてマルチ画面映像とソース画面映像を切り替えて復号化する概念を示す図である。本発明に係る送信装置は、ソース映像２１０、２２０、２３０、２４０だけではなく、ソース映像を含むマルチ画面映像２５０、２６０、２７０、２８０を受信装置に送信し、受信装置はマルチ画面映像２５０、２６０、２７０、２８０に基づいてユーザの選択を受信する。   FIG. 2 is a diagram illustrating a concept of switching and decoding between a multi-screen video and a source screen video according to a user's selection. The transmission apparatus according to the present invention transmits not only the source videos 210, 220, 230, and 240 but also the multi-screen videos 250, 260, 270, and 280 including the source video to the reception apparatus. The user's selection is received based on 260, 270, 280.

ユーザは複数のソース映像２５１、２５２、２５３、２５４を含む第１マルチ画面映像２５０を視聴する。第１マルチ画面映像２５０において、第１ソース映像２５１は他のソース映像２５２、２５３、２５４よりも大きさが大きい。ユーザが、もし第１マルチ画面映像２５０に含まれた第１ソース映像２５１を選択した場合に、受信装置は第１ソース映像２１０を選択して復号化する。   The user views the first multi-screen video 250 including a plurality of source videos 251, 252, 253, 254. In the first multi-screen image 250, the first source image 251 is larger in size than the other source images 252, 253, 254. If the user selects the first source video 251 included in the first multi-screen video 250, the receiving device selects and decodes the first source video 210.

もし、ユーザが第１マルチ画面映像２５０に含まれた他のソース映像２５２、２５３、２５４を選択した場合に、受信装置は他のマルチ画面映像２６０、２７０、２８０の中でユーザが選択したソース映像の大きさが最も大きいマルチ画面映像を復号化する。例えば、ユーザが第１マルチ画面映像２５０に含まれた第２ソース映像２５２を選択した場合に、受信装置は第２ソース映像２６２の大きさが最も大きい第２マルチ画面映像２６０を選択し、選択された第２マルチ画面映像２６０を復号化する。   If the user selects another source video 252, 253, 254 included in the first multi-screen video 250, the receiving apparatus selects the source selected by the user from among the other multi-screen videos 260, 270, 280. Decode the multi-screen video with the largest video size. For example, when the user selects the second source video 252 included in the first multi-screen video 250, the receiving apparatus selects and selects the second multi-screen video 260 having the largest size of the second source video 262. The second multi-screen video 260 is decoded.

ユーザが第２マルチ画面映像２６０に含まれた第２ソース映像２６２を選択すれば、受信装置は第２ソース映像２２０を選択して復号化してもよい。しかし、ユーザが第２マルチ画面映像２６０に含まれた第３ソース映像２６３または第４ソース映像２６４を選択すれば、受信装置は第３マルチ画面映像２７０または第４マルチ画面映像２８０を復号化してもよい。第３マルチ画面映像２７０は、複数のソース映像２７１、２７２、２７３、２７４の中で第３ソース映像２７３の大きさが最も大きいマルチ画面映像であり、第４マルチ画面映像２８０は、複数のソース映像２８１、２８２、２８３、２８４の中で第４ソース映像２８４の大きさが最も大きいマルチ画面映像である。   If the user selects the second source video 262 included in the second multi-screen video 260, the receiving apparatus may select and decode the second source video 220. However, if the user selects the third source video 263 or the fourth source video 264 included in the second multi-screen video 260, the receiving apparatus decodes the third multi-screen video 270 or the fourth multi-screen video 280. Also good. The third multi-screen video 270 is a multi-screen video having the largest size of the third source video 273 among the plurality of source videos 271, 272, 273, 274, and the fourth multi-screen video 280 is a plurality of sources. Among the images 281, 282, 283, 284, the fourth source image 284 is a multi-screen image having the largest size.

すなわち、図２に示す実施形態によれば、ユーザは複数のソース映像が同時に再生するマルチ画面映像に基づいて、いずれか１つのソース映像を選択してもよい。受信装置は、ユーザが選択したソース映像にしたがってユーザが選択したソース映像の大きさが大きく表現された他のマルチ画面映像を復号化したり、ユーザが選択したソース映像を復号化してもよい。   That is, according to the embodiment shown in FIG. 2, the user may select any one source video based on a multi-screen video in which a plurality of source videos are reproduced simultaneously. The receiving device may decode another multi-screen video in which the size of the source video selected by the user is greatly expressed according to the source video selected by the user, or may decode the source video selected by the user.

図３は、本発明の一実施形態に係る送信装置の構造を示すブロック図である。送信装置３００は、受信部３１０、マルチ画面映像生成部３２０および送信部３３０を含む。   FIG. 3 is a block diagram showing a structure of a transmission apparatus according to an embodiment of the present invention. The transmission device 300 includes a reception unit 310, a multi-screen video generation unit 320, and a transmission unit 330.

受信部３１０は複数のソース映像を受信する。各ソース映像は、同一のイベントを複数の時点から撮影して生成されたものである。例えば、第１ソース映像は野球競技を１塁の方向で撮影して生成したものであり、第２ソース映像は野球競技を３塁の方向で撮影して生成したものであってもよい。   The receiving unit 310 receives a plurality of source videos. Each source video is generated by shooting the same event from a plurality of time points. For example, the first source video may be generated by shooting a baseball game in the direction of 1 km, and the second source video may be generated by shooting a baseball game in the direction of 3 km.

マルチ画面映像生成部３２０は、複数のソース映像を含むマルチ画面映像を生成する。マルチ画面映像は１つの画面に複数のソース映像を含む映像であって、例えば、第１ソース映像は左側に、第２ソース映像は右側に位置する映像であってもよい。ユーザは、マルチ画面映像を用いてイベントを様々な時点で同時に観察することができる。例えば、ユーザはマルチ画面映像の中で第１ソース映像および第２ソース映像を参考して野球競技を１塁方向で撮影した場面と３塁方向で撮影した場面を同時に視聴することもできる。   The multi-screen video generation unit 320 generates a multi-screen video including a plurality of source videos. The multi-screen video is a video including a plurality of source videos on one screen. For example, the first source video may be a video on the left side and the second source video may be a video on the right side. The user can observe the event simultaneously at various times using the multi-screen video. For example, the user can simultaneously watch a scene in which a baseball game is photographed in the first base direction and a scene in the third base direction in the multi-screen video with reference to the first source video and the second source video.

一実施形態によれば、マルチ画面映像生成部３２０は、マルチ画面映像に含まれた複数のソース画面映像の中で特定のソース映像の大きさが異なるソース映像の大きさよりも大きくマルチ画面映像を生成してもよい。   According to one embodiment, the multi-screen video generation unit 320 generates a multi-screen video that is larger than the size of the source video in which the size of the specific source video is different among the plurality of source screen videos included in the multi-screen video. It may be generated.

また、マルチ画面映像生成部３２０は複数のマルチ画面映像を生成してもよい。この場合に、マルチ画面映像生成部３２０は、第１ソース映像の大きさが第２ソース映像の大きさよりも大きい第１マルチ画面映像を生成し、第２ソース映像の大きさが第１ソース映像の大きさよりも大きい第２マルチ画面映像を生成してもよい。第１マルチ画面映像と第２マルチ画面映像の全ては第１ソース映像と第２ソース映像を含むが、各マルチ画面映像に含まれたソース画面の大きさは互いに異なってもよい。   Further, the multi-screen video generation unit 320 may generate a plurality of multi-screen videos. In this case, the multi-screen video generation unit 320 generates a first multi-screen video in which the size of the first source video is larger than the size of the second source video, and the size of the second source video is the first source video. A second multi-screen image that is larger than the size of may be generated. Although all of the first multi-screen video and the second multi-screen video include the first source video and the second source video, the sizes of the source screens included in each multi-screen video may be different from each other.

また、各マルチ画面映像に含まれたソース画面の位置は互いに異なってもよい。すなわち、第１マルチ画面映像では第１ソース映像が画面の上段に位置してもよいが、第２マルチ画面映像では第２ソース映像が画面の上段に位置してもよい。   Further, the positions of the source screens included in each multi-screen video may be different from each other. That is, in the first multi-screen video, the first source video may be located at the top of the screen, but in the second multi-screen video, the second source video may be located at the top of the screen.

送信部３３０は、ネットワーク３４０を用いてマルチ画面映像を受信装置３５０に送信する。一実施形態によれば送信部３３０はマルチ画面映像だけでなく、ソース映像を追加的に受信装置３５０へ送信してもよい。   The transmission unit 330 transmits the multi-screen video to the reception device 350 using the network 340. According to an exemplary embodiment, the transmission unit 330 may additionally transmit the source video to the receiving device 350 as well as the multi-screen video.

一実施形態によれば、送信部３３０は、ソース映像とマルチ画面映像を同一のチャネルを用いて受信装置３５０に送信してもよい。または送信部３３０は、ソース映像とマルチ画面映像を異なるチャネルを用いて受信装置３５０に送信してもよい。   According to an embodiment, the transmission unit 330 may transmit the source video and the multi-screen video to the receiving device 350 using the same channel. Alternatively, the transmission unit 330 may transmit the source video and the multi-screen video to the reception device 350 using different channels.

受信装置３５０はマルチ画面映像を復号化する。復号化されたマルチ画面映像は、ディスプレイ装置３６０を用いてユーザに提供してもよい。一実施形態によれば、ユーザは復号化されたマルチ画面映像に基づいて特定のソース映像を選択してもよい。この場合に、受信装置３５０は、送信装置３００から受信したソース映像の中でユーザが選択したソース映像を復号化してもよい。他の実施形態によれば、ユーザは復号化されたマルチ画面映像に基づいて異なるマルチ画面映像を復号化してもよい。   The receiving device 350 decodes the multi-screen video. The decoded multi-screen video may be provided to the user using the display device 360. According to one embodiment, the user may select a particular source video based on the decoded multi-screen video. In this case, the receiving device 350 may decode the source video selected by the user from among the source videos received from the transmitting device 300. According to other embodiments, the user may decode different multi-screen videos based on the decoded multi-screen video.

図４は、本発明の一実施形態に係る受信装置の構造を示すブロック図である。受信装置４００は、映像受信部４１０、ユーザ選択受信部４２０および映像復号化部４３０を含む。   FIG. 4 is a block diagram showing a structure of a receiving apparatus according to an embodiment of the present invention. The receiving device 400 includes a video receiving unit 410, a user selection receiving unit 420, and a video decoding unit 430.

映像受信部４１０は、複数の時点から撮影されたソース映像と各ソース映像を含むマルチ画面映像をネットワーク４５０を用いて送信装置４４０から受信する。マルチ画面映像は複数のソース映像を含むが、複数のソース映像の中で特定映像の大きさは他の映像の大きさよりも大きくてもよい。   The video receiving unit 410 receives a source video taken from a plurality of points in time and a multi-screen video including each source video from the transmission device 440 using the network 450. The multi-screen video includes a plurality of source videos, but the size of the specific video among the plurality of source videos may be larger than the size of other videos.

一実施形態によれば、映像受信部４１０は複数のマルチ画面映像を受信してもよい。映像受信部４１０が、第１ソース映像と第２ソース映像を含む第１マルチ画面映像と第２マルチ画面映像を受信した場合に、第１マルチ画面映像では第１ソース映像の大きさが第２ソース映像の大きさよりも大きくてもよく、第２マルチ画面映像では第２ソース映像の大きさが第１ソース映像の大きさよりも大きくてもよい。また、第１マルチ画面映像では第１ソース映像が画面の上段に位置してもよく、第２マルチ画面映像では第２ソース映像が画面の上段に位置してもよい。   According to an embodiment, the video receiving unit 410 may receive a plurality of multi-screen videos. When the video receiving unit 410 receives the first multi-screen video and the second multi-screen video including the first source video and the second source video, the size of the first source video is the second size in the first multi-screen video. The size of the source video may be larger, and the size of the second source video may be larger than the size of the first source video in the second multi-screen video. In the first multi-screen video, the first source video may be located at the upper stage of the screen, and in the second multi-screen video, the second source video may be located at the upper stage of the screen.

一実施形態によれば、映像受信部４１０はソース映像とマルチ画面映像を同一のチャネルを用いて送信装置４４０から受信してもよい。または、映像受信部４１０は、ソース映像とマルチ画面映像を異なるチャネルを用いて送信装置４４０から送信してもよい。ユーザはディスプレイ装置４６０に表示されるマルチ画面映像を視聴し、いずれか１つのソース映像を選択してもよい。ユーザ選択受信部４２０は、マルチ画面映像に含まれたソース映像のうちのいずれか１つのソース映像に対するユーザの選択を受信する。   According to an embodiment, the video receiving unit 410 may receive the source video and the multi-screen video from the transmission device 440 using the same channel. Alternatively, the video reception unit 410 may transmit the source video and the multi-screen video from the transmission device 440 using different channels. The user may view the multi-screen video displayed on the display device 460 and select any one source video. The user selection receiving unit 420 receives a user's selection for any one of the source videos included in the multi-screen video.

映像復号化部４３０はユーザが選択したソース映像を復号化したり、ユーザが選択したソース映像の大きさが大きく表現された他のマルチ画面映像を復号化してもよい。一実施形態によれば、ディスプレイ装置４６０が第１ソース映像の大きさが第２ソース映像の大きさよりも大きい第１マルチ画面映像を表示する場合に、ユーザは第１ソース映像を選択してもよい。ユーザ選択受信部４２０はユーザから第１ソース映像に対する選択を受信し、映像復号化部４３０は第１ソース映像を復号化してもよい。   The video decoding unit 430 may decode the source video selected by the user or other multi-screen video in which the size of the source video selected by the user is greatly expressed. According to one embodiment, when the display device 460 displays a first multi-screen image in which the size of the first source image is larger than the size of the second source image, the user may select the first source image. Good. The user selection receiving unit 420 may receive a selection for the first source video from the user, and the video decoding unit 430 may decode the first source video.

他の実施形態によれば、ディスプレイ装置４６０が第１ソース映像の大きさが第２ソース映像の大きさよりも大きい第１マルチ画面映像を表示する場合に、ユーザは第２ソース映像を選択してもよい。ユーザ選択受信部４２０はユーザから第２ソース映像に対する選択を受信し、映像復号化部４３０は第２ソース映像の大きさが大きく表現された第２マルチ画面映像を復号化してもよい。もし、ユーザが第２マルチ画面映像に基づいて第２ソース映像を選択すれば、ユーザ選択受信部４２０はユーザから第２ソース映像に対する選択を受信し、映像復号化部４３０は第２ソース映像を復号化してもよい。   According to another embodiment, when the display device 460 displays a first multi-screen image in which the size of the first source image is larger than the size of the second source image, the user selects the second source image. Also good. The user selection receiving unit 420 may receive a selection for the second source video from the user, and the video decoding unit 430 may decode the second multi-screen video in which the size of the second source video is greatly expressed. If the user selects the second source video based on the second multi-screen video, the user selection receiving unit 420 receives a selection for the second source video from the user, and the video decoding unit 430 receives the second source video. It may be decrypted.

図５は、本発明の他の実施形態に係る受信装置の構造を示すブロック図である。受信装置５００は、映像受信部５１０、メタデータ受信部５２０および映像復号化部５３０を含む。   FIG. 5 is a block diagram showing a structure of a receiving apparatus according to another embodiment of the present invention. The receiving apparatus 500 includes a video receiving unit 510, a metadata receiving unit 520, and a video decoding unit 530.

映像受信部５１０は、複数の時点から撮影されたソース映像と各ソース映像を含むマルチ画面映像をネットワーク５５０を用いて送信装置５４０から受信する。一実施形態によれば、映像受信部５１０は複数のマルチ画面映像を受信してもよい。映像受信部５１０が第１ソース映像と第２ソース映像を含む第１マルチ画面映像と第２マルチ画面映像を受信した場合に、第１マルチ画面映像では第１ソース映像の大きさが第２ソース映像の大きさよりも大きくてもよく、第２マルチ画面映像では第２ソース映像の大きさが第１ソース映像の大きさよりも大きくてもよい。また、第１マルチ画面映像では第１ソース映像が画面の上段に位置してもよく、第２マルチ画面映像では第２ソース映像が画面の上段に位置してもよい。   The video receiving unit 510 receives a source video captured from a plurality of points in time and a multi-screen video including each source video from the transmission device 540 using the network 550. According to an embodiment, the video receiving unit 510 may receive a plurality of multi-screen videos. When the video receiving unit 510 receives the first multi-screen video and the second multi-screen video including the first source video and the second source video, the size of the first source video is the second source in the first multi-screen video. The size of the image may be larger than the size of the image, and in the second multi-screen image, the size of the second source image may be larger than the size of the first source image. In the first multi-screen video, the first source video may be located at the upper stage of the screen, and in the second multi-screen video, the second source video may be located at the upper stage of the screen.

メタデータ受信部５２０は、マルチ画面映像に対するメタデータを受信する。メタデータはマルチ画面映像の特性に関する情報を含むデータであって、例えば、送信装置５４０から受信したソース映像の個数、各マルチ画面映像が含むソース映像の個数および各マルチ画面映像が含むソース映像の識別子、各マルチ画面映像に含まれたソース映像の中で大きさが最も大きいソース映像に関する情報などを含んでもよい。ユーザはディスプレイ装置５６０に表示されるマルチ画面映像を視聴し、マルチ画面映像に含まれたソース映像のうちのいずれか１つの映像を選択してもよい。   The metadata receiving unit 520 receives metadata for the multi-screen video. The metadata is data including information on the characteristics of the multi-screen video, for example, the number of source videos received from the transmission device 540, the number of source videos included in each multi-screen video, and the source video included in each multi-screen video. An identifier, information on the source video having the largest size among the source videos included in each multi-screen video may be included. The user may view the multi-screen video displayed on the display device 560 and select any one of the source videos included in the multi-screen video.

映像復号化部５３０は、マルチ画面映像に基づいて選択されたソース映像をメタデータに基づいて復号化する。   The video decoding unit 530 decodes the source video selected based on the multi-screen video based on the metadata.

一実施形態によれば、ディスプレイ装置５６０が、第１ソース映像の大きさが第２ソース映像の大きさよりも大きい第１マルチ画面映像を表示する場合に、ユーザは第１ソース映像を選択してもよい。メタデータ受信部５２０は、第１マルチ画面映像に対するメタデータを参照して第１マルチ画面映像に第１ソース映像と第２ソース映像が含まれていることが分かる。また、メタデータ受信部５２０は、第１マルチ画面映像に対するメタデータを参照して第１マルチ画面映像に含まれた第１ソース映像と第２ソース映像の大きさを判断することができる。メタデータ受信部５２０は、第１マルチ画面映像において最も大きい画面を有するソース映像が選択されたかを判断する。第１マルチ画面映像において最も大きい画面を有する第１ソース映像が選択されたと判断された場合に、映像復号化部５３０は、メタデータ受信部５２０の判断に応じて第１ソース映像を復号化してもよい。   According to an embodiment, when the display device 560 displays a first multi-screen image in which the size of the first source image is larger than the size of the second source image, the user selects the first source image. Also good. The metadata receiving unit 520 refers to the metadata for the first multi-screen video and can recognize that the first source video and the second source video are included in the first multi-screen video. In addition, the metadata receiving unit 520 can determine the sizes of the first source video and the second source video included in the first multi-screen video with reference to the metadata for the first multi-screen video. The metadata receiving unit 520 determines whether the source video having the largest screen in the first multi-screen video is selected. When it is determined that the first source video having the largest screen in the first multi-screen video is selected, the video decoding unit 530 decodes the first source video according to the determination of the metadata reception unit 520. Also good.

他の実施形態によれば、ディスプレイ装置５６０が第１ソース映像の大きさが第２ソース映像の大きさよりも大きい第１マルチ画面映像を表示する場合に、ユーザは第２ソース映像を選択してもよい。ユーザが選択した第２ソース映像の大きさが第１マルチ画面映像に含まれた第１ソース映像の大きさよりも小さいと判断された場合に、メタデータ受信部５２０はマルチ画面映像に対するメタデータを参照して第２ソース映像の大きさが最も大きいマルチ画面の映像が何かを判断する。映像復号化部は、メタデータ受信部５２０の判断に応じて第２ソース映像の大きさが最も大きい第２マルチ画面映像を復号化してもよい。   According to another embodiment, when the display device 560 displays a first multi-screen image in which the size of the first source image is larger than the size of the second source image, the user selects the second source image. Also good. When it is determined that the size of the second source video selected by the user is smaller than the size of the first source video included in the first multi-screen video, the metadata receiving unit 520 transmits metadata for the multi-screen video. Referring to the multi-screen video having the largest second source video size, it is determined. The video decoding unit may decode the second multi-screen video having the largest size of the second source video according to the determination of the metadata receiving unit 520.

３００ 送信装置
３１０ 受信部
３２０ マルチ画面映像生成部
３３０ 送信部
４００ 受信装置
４１０ 映像受信部
４２０ ユーザ選択受信部
４３０ 映像復号化部
５００ 受信装置
５１０ 映像受信部
５２０ メタデータ受信部
５３０ 映像復号化部 DESCRIPTION OF SYMBOLS 300 Transmission apparatus 310 Reception part 320 Multi-screen image | video production | generation part 330 Transmission part 400 Reception apparatus 410 Video reception part 420 User selection reception part 430 Video decoding part 500 Reception apparatus 510 Video reception part 520 Metadata reception part 530 Video decoding part

Claims (18)

複数の時点から撮影されたソース映像を受信する受信部と、
前記複数のソース映像を含むマルチ画面映像を生成するマルチ画面映像生成部と、
前記マルチ画面映像を受信装置に送信する送信部と
を備えたことを特徴とする送信装置。 A receiving unit for receiving source images taken from a plurality of points in time;
A multi-screen video generation unit for generating a multi-screen video including the plurality of source videos;
A transmission device comprising: a transmission unit configured to transmit the multi-screen video to a reception device. 前記マルチ画面映像生成部は、前記複数のソース映像の中で特定のソース映像の大きさが異なるソース映像の大きさよりも大きく前記マルチ画面映像を生成することを特徴とする請求項１に記載の送信装置。   2. The multi-screen video generation unit according to claim 1, wherein the multi-screen video generation unit generates the multi-screen video larger than a size of a source video having a different size of a specific source video among the plurality of source videos. Transmitter device. 前記複数のソース映像は、第１ソース映像と第２ソース映像を含み、
前記マルチ画面映像生成部は、前記第１ソース映像の大きさが前記第２ソース映像の大きさよりも大きい第１マルチ画面映像を生成し、前記第２ソース映像の大きさが前記第１ソース映像の大きさよりも大きい第２マルチ画面映像を生成することを特徴とする請求項２に記載の送信装置。 The plurality of source videos include a first source video and a second source video,
The multi-screen video generation unit generates a first multi-screen video in which a size of the first source video is larger than a size of the second source video, and a size of the second source video is the first source video. The transmission apparatus according to claim 2, wherein a second multi-screen image larger than the size of the second multi-screen image is generated. 前記送信部は、前記ソース映像を追加的に前記受信装置に送信することを特徴とする請求項１に記載の送信装置。   The transmission apparatus according to claim 1, wherein the transmission unit additionally transmits the source video to the reception apparatus. 前記送信部は、前記ソース映像と前記マルチ画面映像を同一のチャネルを用いて送信することを特徴とする請求項４に記載の送信装置。   The transmission apparatus according to claim 4, wherein the transmission unit transmits the source video and the multi-screen video using the same channel. 前記送信部は、前記ソース映像と前記マルチ画面映像をそれぞれ異なるチャネルを用いて送信することを特徴とする請求項４に記載の送信装置。   The transmission apparatus according to claim 4, wherein the transmission unit transmits the source video and the multi-screen video using different channels. 複数の時点から撮影されたソース映像と前記複数のソース映像を含むマルチ画面映像を受信する映像受信部と、
前記マルチ画面映像に含まれたソース映像のうちのいずれか１つのソース映像に対するユーザの選択を受信するユーザ選択受信部と、
前記ユーザの選択によるソース映像を復号化する映像復号化部と
を備えたことを特徴とする受信装置。 A video receiver that receives a source video captured from a plurality of time points and a multi-screen video including the plurality of source videos;
A user selection receiving unit that receives a user's selection of any one of the source videos included in the multi-screen video;
And a video decoding unit configured to decode the source video selected by the user. 前記マルチ画面映像は、前記ソース映像の中で特定のソース映像の大きさが異なるソース映像の大きさよりも大きいことを特徴とする請求項７に記載の受信装置。   The receiving apparatus according to claim 7, wherein the multi-screen video is larger in size than a source video having a different size of a specific source video in the source video. 前記ソース映像は、第１ソース映像と第２ソース映像を含み、
前記映像受信部は、前記第１ソース映像の大きさが前記第２ソース映像の大きさよりも大きい第１マルチ画面映像を受信し、前記第２ソース映像の大きさが前記第１ソース映像の大きさよりも大きい第２マルチ画面映像を受信することを特徴とする請求項８に記載の受信装置。 The source video includes a first source video and a second source video,
The video receiving unit receives a first multi-screen video in which a size of the first source video is larger than a size of the second source video, and a size of the second source video is a size of the first source video. The receiving apparatus according to claim 8, wherein a second multi-screen image larger than the second multi-screen image is received. 前記ユーザ選択受信部は、前記第１マルチ画面映像に含まれた第１ソース映像に対するユーザの選択を受信した場合に、前記映像復号化部は前記第１ソース映像を復号化することを特徴とする請求項９に記載の受信装置。   When the user selection receiving unit receives a user selection of the first source video included in the first multi-screen video, the video decoding unit decodes the first source video. The receiving device according to claim 9. 前記ユーザ選択受信部は、前記第１マルチ画面映像に含まれた第２ソース映像に対するユーザの選択を受信した場合に、前記映像復号化部は前記第２マルチ画面映像を復号化することを特徴とする請求項９に記載の受信装置。   When the user selection receiving unit receives a user selection of the second source video included in the first multi-screen video, the video decoding unit decodes the second multi-screen video. The receiving device according to claim 9. 前記映像受信部は、前記ソース映像と前記マルチ画面映像を同一のチャネルを用いて受信することを特徴とする請求項７に記載の受信装置。   The receiving apparatus according to claim 7, wherein the video receiving unit receives the source video and the multi-screen video using the same channel. 前記映像受信部は、前記ソース映像と前記マルチ画面映像をそれぞれ異なるチャネルを用いて受信することを特徴とする請求項７に記載の受信装置。   The receiving apparatus according to claim 7, wherein the video receiving unit receives the source video and the multi-screen video using different channels. 複数の時点から撮影されたソース映像と前記複数のソース映像を含むマルチ画面映像を受信する映像受信部と、
前記マルチ画面映像に対するメタデータを受信するメタデータ受信部と、
前記マルチ画面映像に基づいて選択された前記ソース映像を前記メタデータに基づいて復号化する映像復号化部と
を備えたことを特徴とする受信装置。 A video receiver that receives a source video captured from a plurality of time points and a multi-screen video including the plurality of source videos;
A metadata receiver for receiving metadata for the multi-screen video;
A video decoding unit, comprising: a video decoding unit that decodes the source video selected based on the multi-screen video based on the metadata. 前記ソース映像は、第１ソース映像と第２ソース映像を含み、
前記映像受信部は、前記第１ソース映像の大きさが前記第２ソース映像の大きさよりも大きい第１マルチ画面映像を受信し、前記第２ソース映像の大きさが前記第１ソース映像の大きさよりも大きい第２マルチ画面映像を受信することを特徴とする請求項１４に記載の受信装置。 The source video includes a first source video and a second source video,
The video receiving unit receives a first multi-screen video in which a size of the first source video is larger than a size of the second source video, and a size of the second source video is a size of the first source video. The receiving apparatus according to claim 14, wherein a second multi-screen image larger than the second multi-screen image is received. 前記メタデータは、前記ソース映像の個数に関する情報、前記各マルチ画面映像に含まれたソース映像の中で最も大きいソース映像に関する情報のうち、少なくとも１つ以上を含むことを特徴とする請求項１５に記載の受信装置。   The metadata may include at least one of information on the number of source videos and information on the largest source video among the source videos included in each of the multi-screen videos. The receiving device described in 1. 前記第１マルチ画面映像に基づいて前記第１ソース映像が選択された場合に、前記メタデータ受信部は、前記メタデータを参照して前記マルチ画面映像の中で前記第１ソース映像の大きさと前記第２ソース映像の大きさを判断し、前記映像復号化部は、前記判断に応じて前記第１ソース映像を復号化することを特徴とする請求項１４に記載の受信装置。   When the first source video is selected based on the first multi-screen video, the metadata receiving unit refers to the metadata and determines the size of the first source video in the multi-screen video. The receiving apparatus according to claim 14, wherein a size of the second source video is determined, and the video decoding unit decodes the first source video in accordance with the determination. 前記第１マルチ画面映像に基づいて前記第１ソース映像が選択された場合に、前記メタデータ受信部は、前記メタデータを参照して前記マルチ画面映像の中で前記第１ソース映像の大きさと前記第２ソース映像の大きさを判断し、前記映像復号化部は、前記判断に応じて前記第２マルチ画面映像を復号化することを特徴とする請求項１４に記載の受信装置。   When the first source video is selected based on the first multi-screen video, the metadata receiving unit refers to the metadata and determines the size of the first source video in the multi-screen video. The receiving apparatus according to claim 14, wherein a size of the second source video is determined, and the video decoding unit decodes the second multi-screen video according to the determination.
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