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Communication Dans Un Congrès Année : 2008

Source coding with intermittent and degraded side information at the decoder

Résumé

Practical schemes for distributed video coding with side information at the decoder need to consider non-standard correlation models in order to take non-stationarities into account. In this paper we introduce two correlation models for Gaussian sources, the Gaussian- Bernoulli-Gaussian (GBG) and the Gaussian-Erasure (GE) models, and evaluate lower and upper bounds on their rate-distortion functions. Provided that the probability of impulse noise or of erasures remains small, these bounds remain close to the rate-distortion function for Gaussian correlation. Two practical schemes for the GE correlation model are also presented, with performance about 1.5 dB away from the lower bound.

Dates et versions

hal-00789155 , version 1 (16-02-2013)

Identifiants

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Francesca Bassi, Michel Kieffer, Claudio Weidmann. Source coding with intermittent and degraded side information at the decoder. ICASSP 2008 - 33th IEEE International Conference on Acoustics, Speech and Signal Processing, Mar 2008, Las Vegas, United States. pp. 2941 - 2944, ⟨10.1109/ICASSP.2008.4518266⟩. ⟨hal-00789155⟩
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