Multimedia: computing, communications and applications
Multimedia: computing, communications and applications
BT Technology Journal
Empirical study of user perception behavior for mobile streaming
Proceedings of the tenth ACM international conference on Multimedia
Sharp or smooth?: comparing the effects of quantization vs. frame rate for streamed video
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Real-time content analysis and adaptive transmission of lecture videos for mobile applications
Proceedings of the 12th annual ACM international conference on Multimedia
Video transport over wireless networks
Proceedings of the 12th annual ACM international conference on Multimedia
How the mobile communication markets differ in China, the U.S., and Europe
Communications of the ACM - The disappearing computer
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In order to attract customers to a mobile multimedia service, it is important for the service provider which level of Quality-of-Service (QoS) customers find acceptable, respectively appealing, and how perceptual QoS is affected by system level QoS. This paper discusses a mobile service for horse-race betting, which includes the streaming of video clips to 3G phones. Furthermore, an extensive study to evaluate system level and perceptual QoS is covered in detail. The results demonstrate the importance of adapting the video for presentation on small screens. The investigation follows on to discuss the importance of bit and frame data rates and clearly demonstrates that users are sensitive to rate changes, even at very low rates. Finally, the results show that packet loss in the range of three to four percent does not effect the user experience.