FOCS '02 Proceedings of the 43rd Symposium on Foundations of Computer Science
Compressed-domain-based transmission distortion modeling for precoded H.264/AVC video
IEEE Transactions on Circuits and Systems for Video Technology
Architectures for fast transcoding of H.264/AVC to quality-scalable SVC streams
IEEE Transactions on Multimedia
Optimizing motion compensated prediction for error resilient video coding
IEEE Transactions on Image Processing
Joint Source-Channel Rate-Distortion Optimization for H.264 Video Coding Over Error-Prone Networks
IEEE Transactions on Multimedia
Efficient erasure correcting codes
IEEE Transactions on Information Theory
Design of capacity-approaching irregular low-density parity-check codes
IEEE Transactions on Information Theory
Finite-length analysis of low-density parity-check codes on the binary erasure channel
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Video coding with optimal inter/intra-mode switching for packet loss resilience
IEEE Journal on Selected Areas in Communications
Analysis of video transmission over lossy channels
IEEE Journal on Selected Areas in Communications
A digital fountain approach to asynchronous reliable multicast
IEEE Journal on Selected Areas in Communications
IEEE Transactions on Circuits and Systems for Video Technology
Modeling of transmission-loss-induced distortion in decoded video
IEEE Transactions on Circuits and Systems for Video Technology
Transmission Distortion Analysis for Real-Time Video Encoding and Streaming Over Wireless Networks
IEEE Transactions on Circuits and Systems for Video Technology
IEEE Transactions on Circuits and Systems for Video Technology
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This paper presents the design and implementation of an error-resilient H.264/AVC-based embedded video conferencing scheme over Internet. We first develop a fast recursive algorithm to estimate the decoder-side distortion of each frame in the presence of packet loss. The algorithm operates at block level, and considers the impacts of different intra prediction modes, the unrestricted intra prediction, and the skip mode. We then design a family of very short systematic forward error correction codes with linear encoding and decoding complexity, which runs across the slices of each frame to recover lost packets. An optimization problem is then formulated to minimize the decoder-side distortion by allocating a given channel coding redundancy among a group of frames. Various techniques are introduced to speed up the algorithm without sacrificing too much accuracy, in order to meet the hardware and real-time constraints of the system. As a result, the proposed scheme can run on a real-time embedded video conferencing system with resolution up to 1024x576 pixels, 30 frames per second (fps) and 4megabits per second (Mbps).