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About Subjective Evaluation of Adaptive Video Streaming
Universidad Politécnica de Madrid, Spain.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems. Acreo Swedish ICT AB, Sweden. (Realistic3D)ORCID iD: 0000-0001-5060-9402
Universidad Politécnica de Madrid, Spain.
2015 (English)In: Proceedings of SPIE - The International Society for Optical Engineering / [ed] Rogowitz, B., Pappas, T.N., and de Ridder, H., Bellingham, WA, USA: SPIE - International Society for Optical Engineering, 2015, Art. no. 939407- p.Conference paper, Published paper (Refereed)
Abstract [en]

The usage of HTTP Adaptive Streaming (HAS) technology by content providers is increasing rapidly. Having available the video content in multiple qualities, using HAS allows to adapt the quality of downloaded video to the current network conditions providing smooth video-playback. However, the time-varying video quality by itself introduces a new type of impairment. The quality adaptation can be done in different ways. In order to find the best adaptation strategy maximizing users perceptual quality it is necessary to investigate about the subjective perception of adaptation-related impairments. However, the novelties of these impairments and their comparably long time duration make most of the standardized assessment methodologies fall less suited for studying HAS degradation. Furthermore, in traditional testing methodologies, the quality of the video in audiovisual services is often evaluated separated and not in the presence of audio. Nevertheless, the requirement of jointly evaluating the audio and the video within a subjective test is a relatively under-explored research field. In this work, we address the research question of determining the appropriate assessment methodology to evaluate the sequences with time-varying quality due to the adaptation. This was done by studying the inuence of different adaptation related parameters through two different subjective experiments using a methodology developed to evaluate long test sequences. In order to study the impact of audio presence on quality assessment by the test subjects, one of the experiments was done in the presence of audio stimuli. The experimental results were subsequently compared with another experiment using the standardized single stimulus Absolute Category Rating (ACR) methodology.

Place, publisher, year, edition, pages
Bellingham, WA, USA: SPIE - International Society for Optical Engineering, 2015. Art. no. 939407- p.
Keyword [en]
Audiovisual quality, HTTP Adaptive Streaming, Perceptual quality, Subjective assessment
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:miun:diva-24531DOI: 10.1117/12.2076387ISI: 000354081600004Scopus ID: 2-s2.0-84928487466Local ID: STCISBN: 978-162841484-4 (print)OAI: oai:DiVA.org:miun-24531DiVA: diva2:794400
Conference
Human Vision and Electronic Imaging XX; San Francisco; United States; 9 February 2015 through 12 February 2015; Code 111963
Available from: 2015-03-11 Created: 2015-03-11 Last updated: 2016-12-23Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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