Adaptive streaming of an immersive video scene

Client configured for retrieving a video data representation of an immersive video scene streamed by a server using a streaming protocol, wherein the server is configured for providing a plurality of streams to the client, wherein each of the streams comprises a portion of the immersive video scene, the client comprising:

• a sending interface configured for sending requests concerning the immersive media scene to the server;
• a reception interface configured for receiving the video data representation of the immersive media scene streamed by the server;
• a viewing direction receiving unit configured for receiving a viewing direction of a user of the client, wherein the viewing direction indicates a field of view of the user;
• and
• a stream selecting unit configured for determining one or more selected streams of the plurality of streams;
• wherein the sending interface is configured for transmitting to the server a transmitting request for transmitting a manifest, which contains for each of the streams of the immersive video scene a portion information, which describes properties of the portion of the spherical immersive video scene comprised in the respective stream;
• wherein the reception interface is configured for receiving the manifest from the server;
• wherein the sending interface is configured for transmitting a streaming request for streaming the one or more selected streams as the video data representation of the immersive video scene, wherein the sending interface receives from the stream selecting unit a selected stream information identifying the one or more selected streams, wherein the selected stream information is created by the stream selecting unit based on the viewing direction of the user of the client and based on the manifest;
• wherein the server is configured for providing at least one of the plurality of streams at different qualities, wherein for each of the streams the properties described in the portion information comprise a quality description of the different qualities being available, wherein the stream selecting unit is configured for determining the quality for the at least one stream being available at different qualities based on the viewing direction of the user of the client and based on the manifest;
• wherein the immersive video scene comprises at least one spherical video scene corresponding to a position of the user of the client, wherein the spherical video scene is split up into a plurality of tiles, wherein each of the tiles represents a regional portion of the spherical video scene, wherein each of the tiles is contained in one stream of the plurality of streams, wherein for each of the streams comprising one of the tiles, the properties described in the portion information comprise a description of the regional portion represented by the respective tile, wherein at least some tiles of the plurality of tiles are separated horizontally and/or vertically;
• wherein the stream selecting unit is configured for including into the one or more selected streams a first group of streams of the plurality of streams, which comprise the one or more streams containing one of the tiles, which is at least partially inside of the field of view of the user, and a third group of the streams, which comprise at least some of the one or more streams containing one of the tiles, which is outside of the field of view of the user;
• and
• wherein the stream selecting unit is configured for determining the quality for the first group of streams and the quality for the third group of streams in such way that the quality of the first group of streams is higher than the quality of the third group of streams.