Multiple Description Coding Using Exact Discrete Radon Transform

We propose in this paper a multiple description coding system by computing projections of information elements. With a complete adequation between projections and packets, we can use it over present erasure channel. Any projection reception contributes in a same way to original information reconstruction. Moreover the system can allocate level of priority for each source layer adding a multi-level redundancy. By the topology of support where scalable data is multiplexed, our Priority Encoding Transmission system gives a near optimal solution MDS-based propose in [1] with a lower complexity and a simpler implementation.