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conference paper

Dynamic Adaptive Streaming for Multi-Viewpoint Omnidirectional Videos

Corbillon, Xavier
•
De Simone, Francesca  
•
Simon, Gwendal
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2018
Proceedings of the ACM Multimedia Systems Conference (MMSys)
ACM MMSys

Full immersion inside a Virtual Reality (VR) scene requires six Degrees of Freedom (6DoF) applications where the user is allowed to perform translational and rotational movements within the virtual space. The implementation of 6DoF applications is however still an open question. In this paper we study a multi-viewpoint (MVP) 360-degree video streaming system, where a scene is simultaneously captured by multiple omnidirectional video cameras. The user can only switch positions to predefined viewpoints (VPs). We focus on the new challenges that are introduced by adaptive MVP 360-degree video streaming. We introduce several options for video encoding with existing technologies, such as High Efficiency Video Coding (HEVC) and for the implementation of VP switching. We model three video-segment download strategies for an adaptive streaming client into Mixed Integer Linear Programming (MILP) problems: an omniscient download scheduler; one where the client proactively downloads all VPs to guarantee fast VP switch; one where the client reacts to the user's navigation pattern. We recorded a one MVP 360-degree video with three VPs, implemented a mobile MVP 360-degree video player, and recorded the viewing patterns of multiple users navigating the content. We solved the adaptive streaming optimization problems on this video considering the collected navigation traces. The results emphasize the gains obtained by using tiles in terms of objective quality of the delivered content. They also emphasize the importance of performing further study on VP switching prediction to reduce the bandwidth consumption and to measure the impact of VP switching delay on the subjective Quality of Experience (QoE).

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Type
conference paper
DOI
10.1145/3204949.3204968
Web of Science ID

WOS:000455343100021

Author(s)
Corbillon, Xavier
•
De Simone, Francesca  
•
Simon, Gwendal
•
Frossard, Pascal  
Date Issued

2018

Publisher

ASSOC COMPUTING MACHINERY

Publisher place

New York

Published in
Proceedings of the ACM Multimedia Systems Conference (MMSys)
ISBN of the book

978-1-4503-5192-8

Start page

237

End page

249

Subjects

multi-viewpoint 360-degree video

•

omnidirectional video

•

discrete 6dof

•

viewport adaptive streaming

•

http

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LTS4  
GR-EB  
Event nameEvent placeEvent date
ACM MMSys

Amsterdam, NETHERLANDS

Jun 12-15, 2018

Available on Infoscience
January 23, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/153828
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