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A generalized optimal correlating transform for multiple description coding and its theoretical analysis

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2 Author(s)
Uhlich, S. ; Dept. of Syst. Theor. & Signal Process., Univ. of Stuttgart, Stuttgart ; Bin Yang

This paper considers a coding scheme for data transmission over erasure channels which is also known as multiple description coding. The LMMSE prefilter method of Romano [1] is reviewed and generalized to allow three different operational modes of the prefilter. They include the possibility to decrease or increase the number of descriptions to be transmitted. We derive explicitly the Hessian matrix for an efficient calculation of the prefilter. We also study the properties of the distortion measure theoretically.

Published in:

Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference on

Date of Conference:

March 31 2008-April 4 2008