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dc.date.accessioned2020-05-29T17:57:45Z
dc.date.available2020-09-30T22:46:13Z
dc.date.created2019-10-25T12:48:42Z
dc.date.issued2019
dc.identifier.citationJeppsson, Mattis Espeland, Håvard Kupka, Tomas Langseth, Ragnar Petlund, Andreas Peng, Qiaoqiao Xue, Chuansong Johansen, Dag Pogorelov, Konstantin Stensland, Håkon Kvale Griwodz, Carsten Riegler, Michael Halvorsen, Pål . Efficient live and on-demand tiled HEVC 360 VR video streaming. International Journal of Semantic Computing (IJSC). 2019, 13(3), 367-391
dc.identifier.urihttp://hdl.handle.net/10852/76427
dc.description.abstract360∘ panorama video displayed through Virtual Reality (VR) glasses or large screens offers immersive user experiences, but as such technology becomes commonplace, the need for efficient streaming methods of such high-bitrate videos arises. In this respect, the attention that 360∘ panorama video has received lately is huge. Many methods have already been proposed, and in this paper, we shed more light on the different trade-offs in order to save bandwidth while preserving the video quality in the user’s field-of-view (FoV). Using 360∘ VR content delivered to a Gear VR head-mounted display with a Samsung Galaxy S7 and to a Huawei Q22 set-top-box, we have tested various tiling schemes analyzing the tile layout, the tiling and encoding overheads, mechanisms for faster quality switching beyond the DASH segment boundaries and quality selection configurations. In this paper, we present an efficient end-to-end design and real-world implementation of such a 360∘ streaming system. Furthermore, in addition to researching an on-demand system, we also go beyond the existing on-demand solutions and present a live streaming system which strikes a trade-off between bandwidth usage and the video quality in the user’s FoV. We have created an architecture that combines RTP and DASH, and our system multiplexes a single HEVC hardware decoder to provide faster quality switching than at the traditional GOP boundaries. We demonstrate the performance and illustrate the trade-offs through real-world experiments where we can report comparable bandwidth savings to existing on-demand approaches, but with faster quality switches when the FoV changes.
dc.languageEN
dc.publisherWorld Scientific Publishing Co.
dc.titleEfficient live and on-demand tiled HEVC 360 VR video streaming
dc.typeJournal article
dc.creator.authorJeppsson, Mattis
dc.creator.authorEspeland, Håvard
dc.creator.authorKupka, Tomas
dc.creator.authorLangseth, Ragnar
dc.creator.authorPetlund, Andreas
dc.creator.authorPeng, Qiaoqiao
dc.creator.authorXue, Chuansong
dc.creator.authorJohansen, Dag
dc.creator.authorPogorelov, Konstantin
dc.creator.authorStensland, Håkon Kvale
dc.creator.authorGriwodz, Carsten
dc.creator.authorRiegler, Michael
dc.creator.authorHalvorsen, Pål
cristin.unitcode185,15,5,71
cristin.unitnameDigitale infrastrukturer og sikkerhet
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1
dc.identifier.cristin1740594
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=International Journal of Semantic Computing (IJSC)&rft.volume=13&rft.spage=367&rft.date=2019
dc.identifier.jtitleInternational Journal of Semantic Computing (IJSC)
dc.identifier.volume13
dc.identifier.issue03
dc.identifier.startpage367
dc.identifier.endpage391
dc.identifier.doihttps://doi.org/10.1142/S1793351X19400166
dc.identifier.urnURN:NBN:no-79527
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn1793-351X
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/76427/1/ijsc-2019-360-tiling.pdf
dc.type.versionAcceptedVersion


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