Robust transmission of H.264/AVC streams using adaptive group slicing and unequal error protection
EURASIP Journal on Applied Signal Processing
IEEE Transactions on Multimedia
An unequal packet loss resilience scheme for video over the Internet
IEEE Transactions on Multimedia
H.264 video communication based refined error concealment schemes
IEEE Transactions on Consumer Electronics
IEEE Transactions on Circuits and Systems for Video Technology
Standard-compliant multiple description video coding over packet loss network
EURASIP Journal on Advances in Signal Processing
ROI-based protection scheme for high definition interactive video applications
Proceedings of the 20th ACM international conference on Multimedia
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In this work, we present an unequal packet loss protection scheme for robust H.264/AVC video transmission over lossy networks. This scheme combines erasure coding, H.264/AVC error resilience techniques and importance measures in video coding. The unequal importance of the video packets is identified in the group of pictures (GOP) and the H.264/AVC data partitioning levels. Using a fixed amount of redundancy, more important packets of a video stream are protected with a more powerful erasure code than the less important packets. The effectiveness of this approach is demonstrated by system implementation and performance evaluation. We show that the received video quality, as measured by PSNR, is significantly improved with the packet loss rate increasing when the unequal loss protection (ULP) scheme is used. More importantly, we have observed that ULP can achieve higher PSNR values and better user perceived quality, even though using less redundancy than the equal loss protection (ELP) scheme.