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Proceedings Paper

New paradigm for the recording of shared whiteboard streams
Author(s): Volker Hilt; Werner Geyer; Wolfgang Effelsberg
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Paper Abstract

The number of video conferences conducted over the Internet has constantly increased during the last years. The need to archive the multimedia data streams of the conferences became apparent, and a number of tools accomplishing this task for audio and video streams were developed. In many video conferencing scenarios, shared whiteboards are used in addition to audio and video to transmit slides or to sketch ideas. However, none of the existing recording tools provides an efficient recording service for data streams of these tools. In this paper we present a new approach to the recording and playback of shared whiteboard media streams. We discuss generic design issues of a shared whiteboard recorder, and we present a novel algorithm that enables efficient random access to the recorded streams. We describe an implementation of our algorithms for the media streams of our digital lecture board.

Paper Details

Date Published: 27 December 1999
PDF: 11 pages
Proc. SPIE 3969, Multimedia Computing and Networking 2000, (27 December 1999); doi: 10.1117/12.373518
Show Author Affiliations
Volker Hilt, Univ. of Mannheim (Germany)
Werner Geyer, Univ. of Mannheim (Germany)
Wolfgang Effelsberg, Univ. of Mannheim (Germany)

Published in SPIE Proceedings Vol. 3969:
Multimedia Computing and Networking 2000
Klara Nahrstedt; Wu-chi Feng, Editor(s)

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