Proceedings of the 4th Annual International Conference on Wireless Internet
Filter banks for prediction-compensated multiple description coding
IEEE Transactions on Signal Processing
Multiple description coding with prediction compensation
IEEE Transactions on Image Processing
Rate-distortion optimization of scalable video codecs
Image Communication
Multiple descriptions based on multirate coding for JPEG 2000 and H.264/AVC
IEEE Transactions on Image Processing
A three-layer scheme for M-channel multiple description image coding
Signal Processing
Adaptively post-encoding multiple description video coding
Neurocomputing
Optimizing the deadzone width to improve the polyphase-based multiple description coding
Multimedia Tools and Applications
Multiple description coding for SNR scalable video transmission over unreliable networks
Multimedia Tools and Applications
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In this paper, a novel multiple description coding technique is proposed, based on optimal Lagrangian rate allocation. The method assumes the coded data consists of independently coded blocks. Initially, all the blocks are coded at two different rates. Then blocks are split into two subsets with similar rate distortion characteristics; two balanced descriptions are generated by combining code blocks belonging to the two subsets encoded at opposite rates. A theoretical analysis of the approach is carried out, and the optimal rate distortion conditions are worked out. The method is successfully applied to the JPEG 2000 standard and simulation results show a noticeable performance improvement with respect to state-of-the art algorithms. The proposed technique enables easy tuning of the required coding redundancy. Moreover, the generated streams are fully compatible with Part 1 of the standard