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IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 13, NO. 12, DECEMBER 2004 1547 A Multiple-Substream Unequal Error-Protection
 

Summary: IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 13, NO. 12, DECEMBER 2004 1547
A Multiple-Substream Unequal Error-Protection
and Error-Concealment Algorithm for
SPIHT-Coded Video Bitstreams
Joohee Kim, Russell M. Mersereau, and Yucel Altunbasak, Senior Member, IEEE
Abstract--This paper presents a coordinated multiple-sub-
stream unequal error-protection and error-concealment algorithm
for SPIHT-coded bitstreams transmitted over lossy channels. In
the proposed scheme, we divide the video sequence corresponding
to a group of pictures into two subsequences and independently
encode each subsequence using a three­dimensional SPIHT al-
gorithm. We use two different partitioning schemes to generate
the substreams, each of which offers some advantages under the
appropriate channel condition. Each substream is protected by
an FEC-based unequal error-protection algorithm, which assigns
unequal forward error correction codes to each bit plane. Any
information that is lost during the transmission for any substream
is estimated at the receiver by using the correlation between the
substreams and the smoothness of the video signal. Simulation
results show that the proposed multiple-substream UEP algorithm

  

Source: Altunbasak, Yucel - School of Electrical and Computer Engineering, Georgia Institute of Technology

 

Collections: Engineering