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Reducing the network bandwidth requirements for 360 ∘ immersive video streaming
Author(s) -
De Cicco Luca,
Mascolo Saverio,
Palmisano Vittorio,
Ribezzo Giuseppe
Publication year - 2019
Publication title -
internet technology letters
Language(s) - English
Resource type - Journals
ISSN - 2476-1508
DOI - 10.1002/itl2.118
Subject(s) - computer science , bandwidth (computing) , augmented reality , virtual reality , quality of experience , impression , multimedia , the internet , entertainment , human–computer interaction , quality of service , computer network , world wide web , art , visual arts
Virtual Reality/Augmented Reality applications are getting increasingly popular and new services are emerging in a diverse set of fields such as entertainment, art, e‐health, and smart factories. 360° videos are an advancement of classical two‐dimensional videos giving the user the impression of being immersed at the center of a scene that can be explored freely and dynamically by simply turning the head to a given region of interest (RoI). Providing a high Quality of Experience to users when streaming 360° videos over the Internet is particularly challenging due to the very high bandwidth requirements. In this letter, a scaling technique to reduce bandwidth requirements to stream omni‐directional videos is presented. An experimental investigation of the proposed approach has shown that it is possible to obtain a reduction of the required bitrate up to around 50% while gracefully degrading visual quality far from the RoI.