What Did I Miss? Visualizing the Past through Video Traces
Date
2007-04-16
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Abstract
Always-on media spaces broadcast video between collaborators to
provide mutual awareness and to encourage casual interaction. This video can
be easily recorded on the fly as a video trace. Ostensibly, people can review
this video history to gain a better idea of the activities and availability
of their collaborator. Such systems are obviously highly contentious, as they
raise significant privacy concerns. However, the ease of capturing video
means that video trace systems will appear in the near future. To push the
boundaries and encourage debate about video trace technologies within the CSCW
community we created TIMELINE, a highly effective visualization system that
combines ideas in slit scanning as used in interactive art to allows people to
easily and rapidly explore a video history in detail. We describe its design
and implementation, and begin the debate by offering preliminary reflections
on how it can be used and misused. To encourage this debate, TIMELINE is
freely available for others to try.
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Computer Science