28 January 2008 ECHO: a community video streaming system with interactive visual overlays
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Abstract
We describe a networked video application where personalized avatars, controlled by a group of "hecklers", are overlaid on top of a real-time encoded video stream of an Internet game for multicast consumption. Rather than passively observing the streamed content individually, the interactivity of the controllable avatars, along with heckling voice exchange, engenders a sense of community during group viewing. We first describe how the system splits video into independent regions with and without avatars for processing in order to minimize complexity. Observing that the region with avatars is more delay-sensitive due to their interactivity, we then show that the regions can be logically packetized into separable sub-streams, and be transported and buffered with different delay requirements, so that the interactivity of the avatars can be maximized. The utility of our system extends beyond Internet game watching to general community streaming of live or pre-encoded video with visual overlays.
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Gene Cheung, Wai-tian Tan, Bo Shen, Antonio Ortega, "ECHO: a community video streaming system with interactive visual overlays", Proc. SPIE 6818, Multimedia Computing and Networking 2008, 681809 (28 January 2008); doi: 10.1117/12.775126; https://doi.org/10.1117/12.775126
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