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SUMMARY:MechE Colloquium: Geodesic Convolutional Shape Optimization
DTSTART:20200310T121500
DTEND:20200310T131500
DTSTAMP:20260407T195031Z
UID:a48baf4e9f83875ea62fc2d125f5c966ab9ece7c64935f95bbbebdcb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Pascal Fua\, Computer Vision Laboratory\, EPFL\nAbstract
 :\nAerodynamic shape optimization has many industrial applications. Existi
 ng methods\, however\, are so computationally demanding that typical engin
 eering practices are to either simply try a limited number of hand-designe
 d shapes or restrict oneself to shapes that can be parameterized using onl
 y few degrees of freedom. In this work\, we introduce a new way to optimiz
 e complex shapes fast and accurately.\n\nTo this end\, we train Geodesic C
 onvolutional Neural Networks to emulate a fluidynamics simulator. The key 
 to making this approach practical is remeshing the original shape using a 
 poly-cube map\, which makes it possible to perform the computations on GPU
 s instead of CPUs. The neural net is then used to formulate an objective f
 unction that is differentiable with respect to the shape parameters\, whic
 h can then be optimized using a gradient-based technique. This outperforms
  state-of-the-art methods by 5 to 20% for standard problems and\, even mor
 e importantly\, our approach applies to cases that previous methods cannot
  handle.\n\nBio: \nPascal Fua received an engineering degree from Ecole Po
 lytechnique\, Paris\, in 1984 and a Ph.D. in Computer Science from the Uni
 versity of Orsay in 1989. He joined EPFL (Swiss Federal Institute of Techn
 ology) in 1996 where he is a Professor in the School of Computer and Commu
 nication Science and head of the Computer Vision Lab. Before that\, he wor
 ked at SRI International and at INRIA Sophia-Antipolis as a Computer Scien
 tist. His research interests include shape modeling and motion recovery fr
 om images\, analysis of microscopy images\, and Augmented Reality. He has 
 (co)authored over 300 publications in refereed journals and conferences. H
 e has received several ERC grants. He is an IEEE Fellow and has been an As
 sociate Editor of IEEE journal Transactions for Pattern Analysis and Machi
 ne Intelligence. He often serves as program committee member\, area chair\
 , and program chair of major vision conferences and has cofounded three sp
 inoff companies.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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