Name
Abstract | ||
|---|---|---|
Multiple description (MD) coding is a source coding technique for information transmission over unreliable networks. In MD coding, the coder generates several different descriptions of the same signal and the decoder can produce a useful reconstruction of the source with any received subset of these descriptions. In this paper, we study the problem of MD coding of stationary Gaussian sources with memory. First, we compute an approximate MD rate distortion region for these sources, which we prove to be asymptotically tight at high rates. This region generalizes the MD rate distortion region of El Gamal and Cover (1982), and Ozarow (1980) for memoryless Gaussian sources. Then, we develop an algorithm for the design of optimal two-channel biorthogonal filter banks for MD coding of Gaussian sources. We show that optimal filters are obtained by allocating the redundancy over frequency with a reverse "water-filling" strategy. Finally, we present experimental results which show the effectiveness of our filter banks in the low complexity, low rate regime |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1109/TIT.2002.1013142 | Information Theory, IEEE Transactions |
Keywords | Field | DocType |
FIR filters,Gaussian processes,channel bank filters,circuit optimisation,decoding,memoryless systems,network analysis,rate distortion theory,signal reconstruction,source coding,FIR filters,MD-DPCM system,approximate MD rate distortion region,approximate finite impulse response solutions,decoder,information transmission,low complexity regime,low rate regime,memory,memoryless Gaussian sources,multiple description coding,optimal two-channel biorthogonal filter banks,perfect reconstruction filter banks,redundancy,reverse water-filling,source coding,source reconstruction,stationary Gaussian sources,unreliable networks | Discrete mathematics,Multiple description coding,Computer science,Algorithm,Coding (social sciences),Theoretical computer science,Gaussian,Gaussian process,Decoding methods,Finite impulse response,Rate–distortion theory,Signal reconstruction | Journal |
Volume | Issue | ISSN |
48 | 7 | 0018-9448 |
Citations | PageRank | References |
23 | 1.40 | 25 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Dragotti, P.L. | 1 | 512 | 39.29 |
| Sergio Servetto | 2 | 434 | 44.31 |
| Martin Vetterli | 3 | 13926 | 2397.68 |