[Lisa_seminaires] [TeaTalk] Prof. Hervé Lombaert, Feb 3, 13:30, AA6214

Dzmitry Bahdanau dimabgv at gmail.com
Ven 3 Fév 12:06:41 EST 2017


Hi all,

Just a reminder about the today's tea-talk, details in the subject.

Dima

On Tue, 31 Jan 2017 at 14:30 Dzmitry Bahdanau <dimabgv at gmail.com> wrote:

> Hi all,
>
> You are invited to attend the talk by Prof. Hervé Lombaert this Friday,
> Feb 3, at 13:30, room AA6214.
>
> *Title:* Spectral Matching & Learning of Surface Data - Example on Brain
> Surfaces
>
> *Abstract:* How to analyze complex shapes, such as of the highly folded
> surface of
> the brain?  In this talk, I will show how spectral representations of
> shapes can benefit learning problems where data lives on surfaces.
> Key operations, such as segmentation and registration, typically need
> a common mapping of surfaces, often obtained via slow and complex mesh
> deformations in a Euclidean space.  Here, we exploit spectral
> coordinates derived from the Laplacian eigenfunctions of shapes and
> also address the inherent instability of spectral shape
> decompositions.  Spectral coordinates have the advantage over
> Euclidean coordinates, to be geometry aware and to parameterize
> surfaces explicitly.  This change of paradigm, from Euclidean to
> spectral representations, enables a classifier to be applied
> *directly* on surface data, via spectral coordinates.
>
> The talk will focus, first, on spectral representations of shapes,
> with an example on brain surface matching, and second, on the learning
> of surface data, with an example on automatic brain surface
> parcellation.
>
> *Speaker's bio: *Hervé Lombaert is a Starting Research Scientist at Inria
> Sophia-Antipolis, France, and Associate Professor at ETS, Montreal - with
> research interests in Statistics on Shapes, Data & Medical Images.  He had
> the chance to work in multiple centers, including Microsoft Research
> (Cambridge, UK), Siemens Corporate Research (Princeton, NJ), Inria
> Sophia-Antipolis (France), McGill University (Canada), and Polytechnique
> Montreal (Canada).  He is also a recipient of the François Erbsmann Prize,
> a top prize in Medical Image Analysis, earned the select NSERC Postdoctoral
> Fellowship and the FQRNT Étudiant-Chercheur Étoile  -  more at [
> http://cim.mcgill.ca/~lombaert]
>
> Best,
> Dima
>
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