Quality of Experience of adaptive video streaming: Investigation in service parameters and subjective quality assessment methodology

Highlights：

• The semi-continuous method used in this study can be an appropriate approach for evaluation of the adaptation events which can last up to some minutes.

• On the comparison between the testing methodologies (ACR and the semi-continuous method) and influence of audio presence on subjective evaluation of test videos no statistically significant effect was found.

• The QoE of constant low quality was voted statistically significantly lower compared to the up-switching.

• No main effect from ANOVA was observed for any of the adaptation related study factors, i.e. in contrary to many of previous studies, using short chunk or abrupt quality switching do not necessarily degrade the QoE.

• The video content characteristics had an influence on the absolute MOS results.

摘要

Highlights•The semi-continuous method used in this study can be an appropriate approach for evaluation of the adaptation events which can last up to some minutes.•On the comparison between the testing methodologies (ACR and the semi-continuous method) and influence of audio presence on subjective evaluation of test videos no statistically significant effect was found.•The QoE of constant low quality was voted statistically significantly lower compared to the up-switching.•No main effect from ANOVA was observed for any of the adaptation related study factors, i.e. in contrary to many of previous studies, using short chunk or abrupt quality switching do not necessarily degrade the QoE.•The video content characteristics had an influence on the absolute MOS results.