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Proceedings Paper

ECHO: a community video streaming system with interactive visual overlays
Author(s): Gene Cheung; Wai-tian Tan; Bo Shen; Antonio Ortega
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Paper 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.

Paper Details

Date Published: 28 January 2008
PDF: 12 pages
Proc. SPIE 6818, Multimedia Computing and Networking 2008, 681809 (28 January 2008); doi: 10.1117/12.775126
Show Author Affiliations
Gene Cheung, Hewlett-Packard Labs. Japan (Japan)
Wai-tian Tan, Hewlett-Packard Labs. Palo Alto (United States)
Bo Shen, Hewlett-Packard Labs. Palo Alto (United States)
Antonio Ortega, Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 6818:
Multimedia Computing and Networking 2008
Reza Rejaie; Roger Zimmermann, Editor(s)

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