Spatially unequal streaming
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsRobert Skupin, Cornelius Hellge, Thomas Schierl, Yago Sánchez De La Fuente, Thomas Wiegand, Dimitri Podborski
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Abstract
Various concepts for media content streaming are described. Some allow for streaming spatial scene content in a spatially unequal manner so that the visible quality for the user is increased, or the processing complexity or used bandwidth at the streaming retrieval site is decreased. Others allow for streaming spatial scene content in a manner enlarging the applicability to further application scenarios.
Claims2
A non-transitory digital storage medium storing a computer program having stored thereon a computer program having a program code for performing, when running on a computer, a video decoder configured to
- receive a video bitstream having encoded thereinto an omnidirectional video using a cubic projection for mapping pictures of the omnidirectional video onto pictures coded into the video bitstream, and
- derive from SEI messages in the video bitstream
- a signalization associated with multiple recommended viewport sections of the omnidirectional video determined based on a measurement of a statistical value, wherein the signalization indicates that the multiple recommended viewport sections are organized as a list ranked according to a frequency ranking gained by statistics of user popularity, and
- an indication of a temporal persistence of the signalization,
- so that the multiple recommended viewport sections are variable by the signalization contained by the SEI messages spatiotemporally across the omnidirectional video.
Dependencies are inferred from the claim text.