Sira Ferradans (CEREMADE, Univ. Paris-Dauphine)

Static and dynamic texture mixing using Optimal Transport

vendredi 29 novembre 2013, 11h00 - 12h00

Salle de réunion, espace Turing

Abstract: This presentation tackles the problem of mixing static and dynamic
texture by combining the statistical properties of an input set of images
or videos. We focus on Spot Noise textures that follow a stationary and
Gaussian model which can be learned from the given exemplars. From
here, we de ne, using Optimal Transport, the distance between texture
models, derive the geodesic path, and de ne the barycenter between
several texture models. These derivations are useful because they allow
the user to navigate inside the set of texture models, interpolating a
new one at each element of the set. From these new interpolated models,
new textures can be synthesized of arbitrary size in space and time.
Numerical results obtained from a library of exemplars show the ability
of our method to generate new complex and realistic static and dynamic

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