Sciweavers

ICASSP
2009
IEEE

Rate distribution between model and signal for multiple descriptions

13 years 10 months ago
Rate distribution between model and signal for multiple descriptions
We consider the rate allocation problem for multiple-description quantization of the signal described by an adaptive model with a fixed structure. The source modeling in coding generally results in a two-stage description of the data, where one of the stages describes the model parameters, and the other describes the signal. Such a setup implies the existence of a trade-off between the rate spent on the parameters and the rate spent on the signal. We optimize this trade-off analytically for the multiple-description case using a method inspired by Minimum Description Length principle. We also provide an algorithm for optimizing the rate allocation between the components of the model-based multiple description coder. Finally we experimentally confirm our results. Our method facilitates the rate-adaptive multiple-description coding.
Janusz Klejsa, W. Bastiaan Kleijn
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICASSP
Authors Janusz Klejsa, W. Bastiaan Kleijn
Comments (0)