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Signal Processing: Image Communication 18 (2003) 337356 Layered coded vs. multiple description coded video over
 

Summary: Signal Processing: Image Communication 18 (2003) 337356
Layered coded vs. multiple description coded video over
error-prone networks$
Yen-Chi Lee, Joohee Kim, Yucel Altunbasak*, Russell M. Mersereau
School of Electrical and Computer Engineering, Georgia Institute of Technology, 777 Atlantic Drive Atlanta, GA 30332-0250, USA
Received 1 July 2002; accepted 4 November 2002
Abstract
Layered (LC) and multiple description coding (MDC) have been proposed as source coding techniques that are
robust to channel errors for video transmission. LC and MDC have similar characteristics: they both generate multiple
sub-bitstreams, and it is permissible to drop some portion of the data from the sub-bitstreams during transmission for
both methods. However, they are different in the sense that the sub-bitstreams for LC have different levels of
importance while all sub-bitstreams for MDC are equally important. Since these two encoding techniques have similar
properties, some performance comparisons between LC and MDC have recently been reported. However, these studies
are still not conclusive because several scenarios have not been carefully considered. Furthermore, they have been
performed in different environments. In this paper, we further investigate the error-resilience capabilities of these two
encoding techniques through extensive experimentation. Although some of our conclusions agree with those in the
literature, we believe that this paper provides the most comprehensive performance comparison yet between LC and
MDC.
r 2003 Elsevier Science B.V. All rights reserved.
Keywords: Layered coding; Multiple description coding; Error-resilient video communications; MPEG video

  

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

 

Collections: Engineering