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An efficient new object-based variational approach for MPEG video decoding

UNe nouvelle approche Variationnelle orientée objets pour Le décodage de séquences MPEG

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Abstract

This paper presents a new decoding method for the improvement of visual quality in block-coded video sequences. A global decoding approach is performed, to tackle artifacts due to compression, such as blocking effects and quantization noise, and simultaneously losses due to transmission, acquisition, or storage. It is based on the optimization of a criterion allowing independent and adapted restoration for the background of the scene and for each moving object. Experimental results on a mpeg sequence with simulated dropouts, and on an uncompressed but very corrupted old movie are presented. They demonstrate the efficiency of the proposed decoding method.

Résumé

Cet article propose une méthode de décodage permettant d’améliorer la qualité visuelle des séquences vidéos codées par blocs. L’amélioration porte sur les artefacts dus à la compression, tels que les effets de bloc et le bruit de quantification, mais aussi sur les pertes provenant de la transmission, de l’acquisition ou du stockage des données. Ces deux aspects sont traités simultanément par une approche globale au décodeur. La méthode repose sur la minimisation de critères qui permettent la restauration indépendante et adaptée du fond et de chaque objet en mouvement. Pour illustrer l’efficacité de la méthode, des résultats sont présentés sur une séquence mpeg, avec simulation de pertes, ainsi que sur une séquence non comprimée, mais présentant de très nombreux artefacts de type pertes : la séquence des « Frères Lumière », qui date du début du XXe siècle.

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Authors and Affiliations

  1. I3S Laboratory, CNRS UPRES-A 6070, University of Nice-Sophia Antipolis, Les Algorithmes/Bâtiment Euclide B, 2000 route des Lucioles, BP 121, F-06903, Sophia Antipolis Cedex, France

    Joël Jung, Marc Antonini & Michel Barlaud

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  1. Joël Jung
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  2. Marc Antonini
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  3. Michel Barlaud
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Correspondence to Joël Jung, Marc Antonini or Michel Barlaud.

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Jung, J., Antonini, M. & Barlaud, M. An efficient new object-based variational approach for MPEG video decoding. Ann. Télécommun. 55, 101–107 (2000). https://doi.org/10.1007/BF03001903

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