Titlebook: Audiovisual Quality Assessment and Prediction for Videotelephony; Benjamin Belmudez Book 2015 Springer International Publishing Switzerlan

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https://doi.org/10.1007/BFb0071790w perceived auditory and visual qualities integrate to form an overall audiovisual quality perception for different experimental contexts. In particular, three main aspects are investigated: first, the influence of the experimental context referring to the mode of assessment (whether the subjects ar

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Multistep Backward Difference Methods,ime integration have been developed which assess the fluctuating quality of transmitted speech and predict the call-final judgement based on a weighting technique of momentary quality ratings. In this chapter, the applicability of such models to the audiovisual case will not only be evaluated, but t

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Semilinear Parabolic Equations,ienced quality of videotelephony and more generally of interactive video communication systems requires to design ecologically valid contexts of assessment to reflect realistic usage cases. In the case of video calls, conversational tests constitute an adequate assessment situation as they reflect t

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https://doi.org/10.1007/978-3-319-14166-4Audiovisual Quality Integration; Codec; ITU-T Parametric Model G; 1070; Interactive Communication; Multim

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Audiovisual Quality Assessment and Prediction for Videotelephony978-3-319-14166-4Series ISSN 2192-2810 Series E-ISSN 2192-2829

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Benjamin BelmudezModels audiovisual quality as perceived by users of IP-based solutions for video communication.Extends the current framework for the parametric prediction of audiovisual call quality.Discusses the qua

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https://doi.org/10.1007/BFb0071790ng the coefficients dependency on input parameters. On the audio side, the quality function is extended to wideband applications by adapting the WB-E-model to comply with the assumptions of the G.1070 model. Finally, the performance of both functions is evaluated on four separate datasets including