Subjective Assessment of Adaptive Media Playout for Video Streaming

Adaptive Media Playout (AMP), the adaptive modification of media playback speed, has been previously proposed as a technique to modify the playout delay of a user with respect to other users or with real time, thus having a crucial role in social TV and live video streaming. In this paper, we study the subjective impact of the playout rate change, which had received very limited attention in the past. In particular, we analyze the effect of the subject and the source content in the subjective opinion.We have found that most of the previous works underestimated the impact of AMP in perceived quality, and that the speed change rate should not be modified beyond 10% from the original, as a general rule. We have also developed a user scoring model which takes into account the variability between users and sources. Our results can help developing cost models for playout control systems based on AMP, as well as provide some insights to the analysis of other types of subjective assessment tests.

[1]  Athina Markopoulou,et al.  Content-Aware Playout and Packet Scheduling for Video Streaming Over Wireless Links , 2008, IEEE Transactions on Multimedia.

[2]  Hans Stokking,et al.  Closing the Gap: Human Factors in Cross-Device Media Synchronization , 2017, IEEE Journal of Selected Topics in Signal Processing.

[3]  Christian Timmerer,et al.  A quality of experience model for Adaptive Media Playout , 2014, 2014 Sixth International Workshop on Quality of Multimedia Experience (QoMEX).

[4]  A. Murat Tekalp,et al.  Delay-Distortion Optimization for Content-Adaptive Video Streaming , 2007, IEEE Transactions on Multimedia.

[5]  Peng Xu,et al.  Adaptive media playout buffer management for latency optimization of mobile live streaming , 2017, 2017 IEEE International Conference on Multimedia & Expo Workshops (ICMEW).

[6]  Bernd Girod,et al.  Adaptive playout scheduling using time-scale modification in packet voice communications , 2001, 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221).

[7]  Rufael Mekuria,et al.  Digital TV: the effect of delay when watching football , 2012, EuroITV.

[8]  Hans Hoffmann,et al.  Studies on the Bit Rate Requirements for a HDTV Format With 1920 $\times$ 1080 pixel Resolution, Progressive Scanning at 50 Hz Frame Rate Targeting Large Flat Panel Displays , 2006, IEEE Transactions on Broadcasting.

[9]  Fernando Boronat,et al.  Inter-destination multimedia synchronization: schemes, use cases and standardization , 2012, Multimedia Systems.

[10]  Yi-Hsuan Yang,et al.  Smooth Control of Adaptive Media Playout for Video Streaming , 2009, IEEE Transactions on Multimedia.

[11]  Bernd Girod,et al.  Adaptive media playout for low-delay video streaming over error-prone channels , 2004, IEEE Transactions on Circuits and Systems for Video Technology.

[12]  Bernd Girod,et al.  Adaptive playout for low latency video streaming , 2001, Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205).