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Summary: ANALYSIS OF PACKET LOSS FOR COMPRESSED VIDEO:
DOES BURST-LENGTH MATTER?
Yi J. Liang
, John G. Apostolopoulos¦
and Bernd Girod
¦
Streaming Media Systems Group
Information Systems Laboratory
Hewlett-Packard Labs, Palo Alto, CA 94304 Stanford University, Stanford, CA 94305
ABSTRACT
Video communication is often afflicted by various forms of losses,
such as packet loss over the Internet. This paper examines the
question of whether the packet loss pattern, and in particular the
burst length, is important for accurately estimating the expected
mean-squared error distortion. Specifically, we (1) verify that the
loss pattern does have a significant effect on the resulting distor-
tion, (2) explain why a loss pattern, for example a burst loss, gen-
erally produces a larger distortion than an equal number of iso-
lated losses, and (3) propose a model that accurately estimates
the expected distortion by explicitly accounting for the loss pat-
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