Multiple description coding: compression meets the network
Goyal, V.K.
Signal Processing Magazine, IEEE
Volume 18, Issue 5, Sep 2001 Page(s):74 - 93
Digital Object Identifier 10.1109/79.952806
Summary:This article focuses on the compressed representations of
pictures. The representation does not affect how many bits get from the
Web server to the laptop, but it determines the usefulness of the bits
that arrive. Many different representations are possible, and there is
more involved in their choice than merely selecting a compression ratio.
The techniques presented represent a single information source with
several chunks of data (“descriptions”) so that the source
can be approximated from any subset of the chunks. By allowing image
reconstruction to continue even after a packet is lost, this type of
representation can prevent a Web browser from becoming dormant
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