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To appear in ICASSP 2002, May 13-17, 2002. MODELING PATH DIVERSITY FOR MULTIPLE DESCRIPTION VIDEO COMMUNICATION
 

Summary: To appear in ICASSP 2002, May 13-17, 2002.
MODELING PATH DIVERSITY FOR MULTIPLE DESCRIPTION VIDEO COMMUNICATION
John Apostolopoulos, Wai-tian Tan, Susie Wee
Streaming Media Systems Group
Hewlett-Packard Labs, Palo Alto, CA
Gregory W. Wornell
Massachusetts Institute of Technology
Cambridge, MA
ABSTRACT
The use of multiple description (MD) video coding and path diver-
sity has been proposed to provide improved performance over lossy
packet networks [1]. The goal of this work was to develop mod-
els to accurately and quickly predict and compare the distortion of
MD video coding and path diversity against conventional single de-
scription (SD) video delivered over a single path. In the process, we
developed (1) a model for the loss process of a two-path path diver-
sity system, and (2) a distortion model that maps the loss model to
MD distortion values. Given these models we present a number of
comparisons between MD video coding and path diversity and con-
ventional SD video over a single path. The proposed model for path

  

Source: Apostolopoulos, John - Hewlett Packard Research Labs

 

Collections: Computer Technologies and Information Sciences