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In this paper, we present a novel rate allocation technique with a frame dropping mechanism for multi-user distributed video coding systems. Using an analytical approach based on entropy calculations, the quantization parameters are dynamically varied and the available system bandwidth unequally distributed among multiple users without the need for a permanent feedback channel. These calculations...
Multiple description coding with side information at the receiver is particularly relevant for robust transmission in sensor networks where correlated data is being transmitted to a common receiver, as well as for robust video compression. The rate-distortion region for this problem has been established in [1]. Here, we focus on the design of a practical multiple description coding scheme with side...
In this paper, we propose a theoretical model for the error propagation phenomenon generated by a frame loss in a distributed video coding framework. Using rate-distortion functions, we analyze the impact of a frame loss on the average distortion of a group of pictures depending on the position of the lost frame within the GOP, as well as the level of motion in each frame and the quantization errors...
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