Maria Torres Vega
Predictive no-reference assessment of video quality
Torres Vega, Maria; Mocanu, Decebal Constantin; Stavrou, Stavros; Liotta, Antonio
Authors
Decebal Constantin Mocanu
Stavros Stavrou
Antonio Liotta
Abstract
Among the various means to evaluate the quality of video streams, lightweight No-Reference (NR) methods have low computation and may be executed on thin clients. Thus, these methods would be perfect candidates in cases of real-time quality assessment, automated quality control and in adaptive mobile streaming. Yet, existing real-time, NR approaches are not typically designed to tackle network distorted streams, thus performing poorly when compared to Full-Reference (FR) algorithms. In this work, we present a generic NR method whereby machine learning (ML) may be used to construct a quality metric trained on simplistic NR metrics. Testing our method on nine, representative ML algorithms allows us to show the generality of our approach, whilst finding the best-performing algorithms. We use an extensive video dataset (960 video samples), generated under a variety of lossy network conditions, thus verifying that our NR metric remains accurate under realistic streaming scenarios. In this way, we achieve a quality index that is comparably as computationally efficient as typical NR metrics and as accurate as the FR algorithm Video Quality Metric (97% correlation).
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 4, 2016 |
Online Publication Date | Dec 8, 2016 |
Publication Date | 2017-03 |
Deposit Date | Aug 2, 2019 |
Publicly Available Date | Aug 2, 2019 |
Journal | Signal Processing: Image Communication |
Print ISSN | 0923-5965 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 52 |
Pages | 20-32 |
DOI | https://doi.org/10.1016/j.image.2016.12.001 |
Keywords | Quality of experience, No-Reference Video quality assessment, Supervised machine learning |
Public URL | http://researchrepository.napier.ac.uk/Output/2022668 |
Contract Date | Aug 2, 2019 |
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