| HAL : hal-00476064, version 1 |
| Fiche détaillée | Récupérer au format |
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| SSVM'11, Israël (2011) |
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| Wasserstein Barycenter and its Application to Texture Mixing |
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| Rabin Julien 1Gabriel Peyré 1 |
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| (2011) |
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| This paper proposes a new definition of the averaging of discrete probability distributions as a barycenter over the Wasserstein space. Replacing the Wasserstein original metric by a sliced approximation over 1D distributions allows us to use a fast stochastic gradient descent algorithm. This new notion of barycenter of probabilities is likely to find applications in computer vision where one wants to average features defined as distributions. We show an application to texture synthesis and mixing, where a texture is characterized by the distribution of the response to a multiscale oriented filter bank. This leads to a simple way to navigate over a convex domain of color textures. |
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| 1 : | CEntre de REcherches en MAthématiques de la DEcision (CEREMADE) |
| CNRS : UMR7534 – Université Paris IX - Paris Dauphine | |
| 2 : | Laboratoire traitement et communication de l'information (LTCI) |
| CNRS : UMR5141 – Institut Télécom – Télécom ParisTech | |
| 3 : | Thales Aerospace Division [Brest] |
| Thales Aerospace Division | |
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| Domaine | : | Informatique/Traitement du signal et de l'image Sciences de l'ingénieur/Traitement du signal et de l'image |
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| Wasserstein barycenter – optimal transport – texture synthesis – texture mixing – image processing – stochastic gradient |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00476064, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00476064 | |
| oai:hal.archives-ouvertes.fr:hal-00476064 | |
| Contributeur : Gabriel Peyré | |
| Soumis le : Vendredi 23 Avril 2010, 15:34:36 | |
| Dernière modification le : Mercredi 23 Mai 2012, 21:51:00 | |