Capturing and playing multimedia events with STREAMS
MULTIMEDIA '94 Proceedings of the second ACM international conference on Multimedia
NoteLook: taking notes in meetings with digital video and ink
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Passive capture and structuring of lectures
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Designing presentations for on-demand viewing
CSCW '00 Proceedings of the 2000 ACM conference on Computer supported cooperative work
Automating camera management for lecture room environments
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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This paper describes camera control interfaces for capturing meetings and presentations into multimedia documents. While technologies are maturing to deliver multimedia documents over network, skilled human hands are still required to create the contents. We had dug into the problem and found that some portion of it derives from current camera control systems, which only provide interfaces for incremental navigations. Presets are provided for some systems to avoid cumbersome manipulations, but the difficulty to improvise controls remains untouched. We introduced an interface using floor plan for selecting an arbitrary area to be captured. We also conducted a study to compare our method with other two typical camera control interfaces. The results revealed that our method was significantly better than a typical joystick-metaphor interface. Although an interface with presets resulted superior for completing tasks in limited conditions, the participants judge the use of a floor plan to be equally good in respect to ease of camera navigation as they intended. They also indicated possible improvement for our interface to close in on the one with presets.