| Summary: | 碩士 === 國立交通大學 === 資訊工程研究所 === 82 === Multimedia systems combine a variety of information sources,
such as voice, graphics, animation, images, music, and full-
motion video, into a wide range of applications. The thesis
initially categorizes existing multimedia applications into
three classes: Non-Interactive-oriented, Interactive-oriented
Client-Server-based, and Interactive-oriented Peer-Party-based
applications. In particular, the thesis looks into the second
and third class applications and gives an in-deth survey on the
media synchronization problem for the design of those
applications. This thesis then presents a prototype of a
Distributed Multimedia Teleworking System(DMTS), which allows
two or more remote systems to collaboratively access and modify
multimedia data through network in a fully synchronous fashion.
The system is developed over TCP/IP on an FDDI network, using
an XVideo D/A card. The media supported in DMTS includes text,
graph, voice, and video. For text and graph, to maintain the
coherence of the data being simultaneously modified, DMTS
employs a master-slave collaboration model between the two
remote systems. Moreover, effective mechanisms of reducing skew
(asynchrony) and jitter delays between video and voice data
streams have also been designed and prototyped in DMTS.
Finally, the thesis demonstrates experimental results to
indicate that the maximum throughput is 13 frames per second
and the throughput bottleneck is on the capture and D/A
processing of video frames.
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