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- W2624956053 abstract "– Nous introduisons dans cet article un nouveau cadre unifie pour la manipulation de details pour des signaux definis sur des graphes generaux. La cle de cette unification est de modeliser des donnees specifiques sous la forme de signaux definis sur des graphes ponderes appropriees. Ces signaux sont alors representes comme la somme de couches successives, chacune capturant une echelle donnee. Ces couches sont obtenues grâce a un procede iteratif de regularisation base sur la penalisation de la variation totale. Les couches sont ensuite traitees separement avant d'etre recombinees, realisant ainsi la manipulation de details. L'avantage de l'approche est illustre sur des images, des maillages 3D et des nuages de points. Abstract – In this paper we introduce a new unified framework for multi-scale detail manipulation of graph signals. The key to this unification is to model any kind of data as signals defined on appropriate weighted graphs. Graph signals are represented as the sum of successive layers, each capturing a given scale of detail. Detail layers are obtained through a series of regularization procedures based on total variation penalization over graphs. Layers are then processed separately before being recombined, thus achieving detail manipulation. The benefit of the approach is shown on images, 3D meshes and 3D colored point clouds." @default.
- W2624956053 created "2017-06-23" @default.
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- W2624956053 date "2015-01-01" @default.
- W2624956053 modified "2023-10-14" @default.
- W2624956053 title "Décomposition multi-échelle de signaux sur graphes Application à la manipulation de détails" @default.
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