An adaptive slice group multiple description coding technique for real-time video transmission over wireless networks

Viswesh Parameswaran, Sudheendra Murthy, Arunabha Sen, Baoxin Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

This paper addresses the problem of transmitting real-time video over wireless networks. We propose improvements to multiple description coding technique using the slice group coding tools provided in H.264/AVC. The Macroblocks in each frame are mapped into different slice groups based on their motion vectors and distortion parameters. The slice group containing significant motion and distortion is fine quantized, while the other slice group is coarse quantized. The encoded quality scaled video is transmitted normally over the first path, but with a quantization offset on the second path. The proposed system provides a better quality video for the regions containing interesting targets. Simulation results in Network Simulator NS-2 confirm robust performance of the scheme under different packet loss conditions.

Original languageEnglish (US)
Title of host publicationMilitary Communications Conference, MILCOM 2007
DOIs
StatePublished - Dec 1 2007
EventMilitary Communications Conference, MILCOM 2007 - Orlando, FL, United States
Duration: Oct 29 2007Oct 31 2007

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM

Other

OtherMilitary Communications Conference, MILCOM 2007
CountryUnited States
CityOrlando, FL
Period10/29/0710/31/07

Keywords

  • Flexible Macroblock Ordering (FMO)
  • Multiple Description Coding (MDC)
  • Single Description Coding (SDC)
  • Wireless networks

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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