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Bandwidth reduction of omnidirectional viewport-dependent video streaming via subjective quality assessment

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationAltMM 2017 - Proceedings of the 2nd International Workshop on Multimedia Alternate Realities, co-located with MM 2017
Number of pages6
ISBN (Electronic)9781450355070
Publication statusPublished - 27 Oct 2017
Publication typeA4 Article in a conference publication
EventACM International Workshop on Multimedia Alternate Realities -
Duration: 1 Jan 1900 → …


ConferenceACM International Workshop on Multimedia Alternate Realities
Period1/01/00 → …


Omnidirectional video is more and more widespread in consumer electronics and professional capture devices, as well over Internet via novel streaming services. Omnidirectional video requires a large streaming bandwidth. To date there is little knowledge about the subjective experience of streaming services of omnidirectional video. The aim of this paper is to present subjective assessment results of experiments using a tilebased streaming system for omnidirectional video with the goal of reducing the streaming bandwidth. The results we present show that it is possible to reduce streaming bit rates by an average of 44% for a subjective DMOS value of 4.5 for different content genres.


  • 360 degrees video, Omnidirectional video, Streaming bandwidth optimization, Subjective assessment, Subjective quality evaluation, Virtual reality streaming

Publication forum classification

Field of science, Statistics Finland