A New Error Resilient Coding Scheme for H.263 Video Transmission
PCM '02 Proceedings of the Third IEEE Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Source-adaptation-based wireless video transport: a cross-layer approach
EURASIP Journal on Applied Signal Processing
Breakpoint tuning in DCT-based nonlinear layered video codecs
EURASIP Journal on Applied Signal Processing
Cross-layer multiuser resource allocation for video communication over OFDM networks
Computer Communications
The new hybrid approach to protect MPEG-2 video header
MUSP'06 Proceedings of the 6th WSEAS international conference on Multimedia systems & signal processing
An efficient FMO-based error-resilient scheme for video surveillance coding
Multimedia Tools and Applications
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We address a new error-resilient scheme for broadcast quality MPEG-2 video streams to be transmitted over lossy packet networks. A new scene-complexity adaptive mechanism, namely Adaptive MPEG-2 Information Structuring (AMIS) is introduced. AMIS modulates the number of resynchronization points (i.e., slice headers and intra-coded macroblocks) in order to maximize the perceived video quality, assuming that the encoder is aware of the underlying packetization scheme, the packet loss probability (PLR), and the error-concealment technique implemented at the decoding side. The end-to-end video quality depends both on the encoding quality and the degradation due to data loss. Therefore, AMIS constantly determines the best compromise between the rate allocated to encode pure video information and the rate aiming at reducing the sensitivity to packet loss. Experimental results show that AMIS dramatically outperforms existing structuring techniques, thanks to its efficient adaptivity. We then extend AMIS with a forward-error-correction (FEC)-based protection algorithm to become AMISP. AMISP triggers the insertion of FEC packets in the MPEG-2 video packet stream. Finally, the performances of the AMISP scheme in an MPEG-2 over RTP/UDP/IP scenario are evaluated