NDLI: A Content-Based Layered Multiple Description Coding Scheme for Robust Video Transmission over Ad Hoc Networks

Content Provider	IEEE Xplore Digital Library
Author	Jun Yang Shengrong Gong
Copyright Year	2009
Abstract	Ad hoc networks are characterized with frequent link failures and network topology change. These features result in a great challenge to transmit video over ad hoc networks. We propose a novel content-based layered multiple description coding scheme C-LMDC for robust video transmission over ad hoc networks. First determine the region of interest (ROI) of the video image before actual coding. Then divide the video sequence into ROI group and regular group using dynamic flexible macro block ordering (FMO) technology. After that, carry out layered multiple description coding scheme and protect ROI slices by redundant slices technology. Finally transmit the bit-stream using multi-path transmission. The simulation results show that our method improves the objective and subjective quality of the reconstructed video sequence obviously and ensure a robust video transmission over Ad Hoc networks.
Starting Page	21
Ending Page	24
File Size	328886
Page Count	4
File Format	PDF
ISBN	9780769536439
DOI	10.1109/ISECS.2009.106
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	robust video transmission Ad Hoc Video sequences Educational institutions Ad hoc networks Computer science content-based Image coding Network topology Bandwidth layered multiple description coding Video compression Robustness Automatic voltage control
Content Type	Text
Resource Type	Article

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