Paper Info
Title
Robust decoder-based error control strategy for recovery of H.264/AVC video content
Abstract
Real-time wireless conversational and broadcasting multimedia applications offer particular transmission challenges as reliable content delivery cannot be guaranteed. The undelivered and erroneous content causes significant degradation in quality of experience. The H.264/AVC standard includes several error resilient tools to mitigate this effect on video quality. However, the methods implemented by the standard are based on a packet-loss scenario, where corrupted slices are dropped and the lost information concealed. Partially damaged slices still contain valuable information that can be used to enhance the quality of the recovered video. This study presents a novel error recovery solution that relies on a joint source-channel decoder to recover only feasible slices. A major advantage of this decoder-based strategy is that it grants additional robustness while keeping the same transmission data rate. Simulation results show that the proposed approach manages to completely recover 30.79% of the corrupted slices. This provides frame-by-frame peak signal-to-noise ratio (PSNR) gains of up to 18.1%dB, a result which, to the knowledge of the authors, is superior to all other joint source-channel decoding methods found in literature. Furthermore, this error resilient strategy can be combined with other error resilient tools adopted by the standard to enhance their performance.
Year
DOI
Venue
2011
10.1049/iet-com.2010.0717
Communications, IET
Keywords
Field
DocType
combined source-channel coding,data compression,maximum likelihood estimation,robust control,video coding,H.264-AVC video content recovery,Viterbi algorithm,broadcasting multimedia application,error recovery solution,error resilient strategy,error resilient tool,frame-by-frame PSNR,frame-by-frame peak signal-to-noise ratio,joint source-channel decoder,packet-loss scenario,quality of experience,real-time wireless conversational multimedia application,robust decoder-based error control strategy,transmission data rate,video quality
Broadcasting,Computer science,Real-time computing,Error detection and correction,Robustness (computer science),Soft-decision decoder,Quality of experience,Decoding methods,Robust control,Video quality
Journal
Volume
Issue
ISSN
5
13
1751-8628
Citations 
PageRank 
References 
6
0.55
17
Authors
2
Name
Order
Citations
PageRank
Reuben A. Farrugia111118.26
Carl James Debono2246.74