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Tile based HEVC video for head mounted displays

: Skupin, R.; Sanchez, Y.; Hellge, C.; Schierl, T.


Kankanhalli, M.S. ; Institute of Electrical and Electronics Engineers -IEEE-:
ISM 2016, IEEE International Symposium on Multimedia. Proceedings : 11-13 December 2016, San Jose, California
Piscataway, NJ: IEEE, 2016
ISBN: 978-1-5090-4571-6
ISBN: 978-1-5090-4572-3 (Print)
ISBN: 978-1-5090-4570-9
International Symposium on Multimedia (ISM) <18, 2016, San Jose/Calif.>
Fraunhofer HHI ()

360 degrees video services with resolutions of UHD and beyond for Virtual Reality head mounted displays are a challenging task due to limits of video decoders in constrained end devices. Adaptivity to the current user viewport is a promising approach but incurs significant encoding overhead when encoding per user or set of viewports. A more efficient way to achieve viewport adaptive streaming is to facilitate motion-constrained HEVC tiles. Original content resolution within the user viewport is preserved while content currently not presented to the user is delivered in lower resolution. A lightweight aggregation of varying resolution tiles into a single HEVC bitstream can be carried out on-the-fly and allows usage of a single decoder instance on the end device.