4 December 2000 Optimal overcomplete subband expansions for multiple description coding
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Abstract
We study the use of overcomplete subband expansions for multiple description coding. The system proposed uses an overcomplete subband expansion followed by independent coding of each of the subbands. The entire coding of each of the subbands is entirely contained within a single description. Using analysis in the polyphase domain, we study finding frequency response of optimal filterbanks and the rate allocation across the subbands to minimize the end- to-end reconstruction error subject to a transmission rate constraint when a distribution over channel states is known. A general analysis of the problem is given and results are shown for a 3 by 2 expansion of a first-order autoregressive process.
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Sanjeev Mehrotra, Sanjeev Mehrotra, } "Optimal overcomplete subband expansions for multiple description coding", Proc. SPIE 4119, Wavelet Applications in Signal and Image Processing VIII, (4 December 2000); doi: 10.1117/12.408669; https://doi.org/10.1117/12.408669
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