Universal Wyner-Ziv Coding for Gaussian Sources

Abstract : This paper considers the problem of lossy source coding with side information at the decoder only, for Gaussian sources, when the joint statistics of the sources are partly unknown. We propose a practical universal coding scheme based on scalar quantization and nonbinary LDPC codes, which avoids the binarization of the quantized coefficients. We first explain how to choose the rate and to construct the LDPC coding matrix. Then, a decoding algorithm that jointly estimates the source sequence and the joint statistics of the sources is proposed. The proposed coding scheme suffers no loss compared to the practical coding scheme with same rate but known variance.
Type de document :
Communication dans un congrès
38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2013, Vancouver, Canada. Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, pp.1-4, 2013
Liste complète des métadonnées

https://hal-supelec.archives-ouvertes.fr/hal-00819493
Contributeur : Michel Kieffer <>
Soumis le : mercredi 1 mai 2013 - 16:17:44
Dernière modification le : mercredi 20 février 2019 - 01:28:58
Document(s) archivé(s) le : vendredi 2 août 2013 - 04:06:11

Fichier

ICASSP2013_Dupraz.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : hal-00819493, version 1

Citation

Elsa Dupraz, Aline Roumy, Michel Kieffer. Universal Wyner-Ziv Coding for Gaussian Sources. 38th International Conference on Acoustics, Speech, and Signal Processing (ICASSP), May 2013, Vancouver, Canada. Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, pp.1-4, 2013. 〈hal-00819493〉

Partager

Métriques

Consultations de la notice

623

Téléchargements de fichiers

334