Higher Bandwidth X
John Danskin.
ACM Multimedia 1994
Abstract
Network bandwidth has always been a key issue for multimedia protocols.
Many potential users of networked multimedia protocols will continue to
have low bandwidth network connections for some time: copper wire ISDN,
infra-red, cellular modems, etc. Compression provides potential relief for
users of slow networks by increasin effective bandwidth. HBX introduces a
new technique, based on arighmetic coding and statistical modeling, for
compressing structured data. Applied to the X networked graphics protocol,
this technique yields 4.5:1 compression across a representative set of
traces, performing twice as well as the popular LZW-based Xremote
compression protocol. HBX's coding techniques are generally applicable to
the graphics and imaging subset of multimedia protocols. Future work will
determine whether HBX's coding techniques can be applied to audio and video
streams as well.
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