A Subjective Comparison of Broadcast and Unicast Transmission Impairments

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2018, No. 10, pp. 1–20
Abstract: In this paper we describe a subjective test we have performed with 60 viewers over the age of 18 and 570 young students, the majority being 10 or 11 years old, to understand the relative annoyance caused by various transmission impairments when viewing television content. We wanted to compare errors associated with broadcast and multicast delivery which appear as areas of extreme color or tearing of the image, with errors associated with Adaptive Bit Rate unicast, such as interruptions and quality variations. We also wanted to study the impact of the type of screen the content is viewed on, considering viewing on tablets and on a TV. We have found a significant level of consistency over all of the results we have collected. Interruptions were the most annoying impairment, with multiple short interruptions being more annoying than a single longer one, and with missing content being more annoying than simply pausing. We found more tolerance to quality variation on tablets, and found that younger adults are more annoyed by impairments on tablets and older adults more annoyed when watching on the TV. We have found the young students to have similar views to the adults, and have found them to be capable of participating in subjective tests.
Publication Date: 2018-10-22
DOI: 10.5594/M001847
ISBN: Print: 978-1-61482-960-7
Link: https://doi.org/10.5594/M001847
Author(s): Brahim AllanBritish Telecommunications plc, UK
Mike NilssonBritish Telecommunications plc, UK
Ian KegelBritish Telecommunications plc, UK
Keyword(s): Video Signal Processing, HDTV, Subjective Quality Assessment, QoE
Copyright: © 2018 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

Laura Pozueco et al, “Subjective video quality evaluation of different content types under different impairments”, New Review of Hypermedia and Multimedia, 23:1, 1-28, 2017, EXTERNAL
British Telecommunication plc, BT TV, http://sport.bt.com/ EXTERNAL
STEM: Science, Technology, Engineering and Mathematics - https://www.stem.org.uk/ EXTERNAL
R-REC-BT.500-13 — Recommendation ITU-R BT.500-13, “Methodology for the Subjective Assessment of the Quality of Television Pictures,” International Telecommunication Union, Radiocommunication Sector, Geneva, 2012. EXTERNAL
ITU-T REC H.264 [Active]
T-REC-P.910 — ITU-T Recommendation P.910, “Subjective Video Quality Assessment Methods for Multimedia Applications,” International Telecommunication Union, Geneva, Switzerland, Apr. 2008. EXTERNAL

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Brahim Allan, Mike Nilsson, and Ian Kegel; A Subjective Comparison of Broadcast and Unicast Transmission Impairments, SMPTE Meetings and Conferences ( October 2018); SMPTE, 2018, ISBN: 978-1-61482-960-7. Available at https://doi.org/10.5594/M001847

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Brahim Allan, Mike Nilsson, and Ian Kegel; A Subjective Comparison of Broadcast and Unicast Transmission Impairments, SMPTE Meetings and Conferences ( October 2018); SMPTE, 2018, ISBN: 978-1-61482-960-7. Available at https://doi.org/10.5594/M001847

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<span class="citation">Brahim Allan, Mike Nilsson, and Ian Kegel; <cite>A Subjective Comparison of Broadcast and Unicast Transmission Impairments</cite>, SMPTE Meetings and Conferences ( October 2018); SMPTE, 2018, ISBN: 978-1-61482-960-7. Available at <a href="https://doi.org/10.5594/M001847" target="_blank" rel="noopener">https://doi.org/10.5594/M001847</a></span>

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Brahim Allan, Mike Nilsson, and Ian Kegel; <cite id="bib-10-5594-m001847">A Subjective Comparison of Broadcast and Unicast Transmission Impairments</cite>, SMPTE Meetings and Conferences ( October 2018); SMPTE, 2018, ISBN: 978-1-61482-960-7
<span class="doi">10.5594/M001847</span>
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