Rate-distortion optimized frame dropping for multiuser streaming and conversational videos
Advances in Multimedia
QoE-oriented 3D video transcoding for mobile streaming
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP) - Special section of best papers of ACM multimedia 2011, and special section on 3D mobile multimedia
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This paper proposes a Quality of Experience (QoE) based rate adaptation scheme selection approach for multi-user wireless video delivery. Transcoding and packet dropping are used as examples of rate adaptation schemes, and we investigate their impact on user perceived video quality. In the presence of constrained computation resources, the most suitable rate adaptation scheme is determined for each video stream such that the overall quality degradation is minimized. The proposed scheme selection approach is integrated with QoE-based resource allocation in presence of constrained transmission resources. Simulation results obtained from an emulated High Speed Downlink Packet Access (HSDPA) show that the QoE-based approach leads to significant improvements of user perceived quality compared to other approaches including a non-optimized HSDPA systems