Computer Graphics and Geometry Laboratory
Upcoming Events

Speaker: Henrik Zimmer

Friday, Nov 28th, 11:00, in BC 329

Title: Zometool Shape Approximation

This talk presents an approach for performing constrained remeshing, i.e., remeshing where the used mesh elements are constrained to come from some predefined set. Specifically, in this work topology-preserving approximations of 2-manifold input surfaces are computed using only parts from the Zometool system. This construction system relies on a single node type with a small, fixed set of directions and only 9 different edge types. While being naturally well suited for modeling symmetries, various polytopes or visualizing molecular structures, the inherent discreteness of the system poses difficult constraints on any algorithmic approach to support the modeling of freeform shapes. We contribute a set of local, topology preserving (Zome) mesh modification operators enabling efficient exploration of the space of 2-manifold Zome models around the given input shape. Starting from a rough initial approximation, the operators are iteratively applied within a stochastic framework guided by an energy functional that measures the approximation quality. The stochastic optimization helps dealing with the inherently high combinatorial complexity and we further parallelize the optimization for an additional speed-up.
Our approach is demonstrated on a number of designs and we also show how parameters can be varied to obtain different model complexities.

Henrik Zimmer is currently a post-doc fellow at INRIA Sophia Antipolis. He studied Computer Science at RWTH Aachen University in Germany, where he also finished his PhD in 2014 under the supervision of Professor Leif Kobbelt. His research interests include Geometry Processing in general and Architectural Geometry in particular.

Past Events

Invited Talk - Tim Weyrich - Nov 7th 2014

Invited Talk - Daniele Panozzo - Nov 3rd 2014

Invited Talk - Wenzel Jakob - Oct 15th 2014

Invited Talk - Nobuyuki Umetani - Oct 8th 2014

Invited Talk - Marios Papas - Oct 1st 2014

Invited Talk - Remo Ziegler - May 14th 2014

Invited Talk - Ralph Wiedemeier - May 7th 2014

Invited Talk - Stelian Coros - April 30th 2014

Invited Talk - Andrew Sageman-Furnas - April 24nd 2014

Invited Talk - Anders Holden Deleuran - April 22nd 2014

Invited Talk - Johannes Kopf - April 15th 2014

Invited Talk - Oliver Mattausch - March 4th 2014

Invited Talk - Daniele Panozzo - February 19th 2014

Invited Talk - Michael Bronstein - November 4th 2013

Invited Talk - Michael Wand - October 25th 2012

Invited Talk - Andrea Tagliasacchi - October 19th 2012

Invited Talk - Victor Adrian Prisacariu - August 31st 2012

Conference - Symposium on Geometry Processing - July 2011

Invited Lecture - Matthias Müller-Fischer - December 7th, 2011

Invited Talk - Simon Schubiger - November 23, 2011

Invited Talk - Brian Amberg - November 22, 2011

Invited Talk - Richard Keiser - November 16, 2011

Invited Talk - CITA - November 14, 2011

Invited Talk - Bailin Deng - October 24, 2011

Invited Talk - David Bommes - July 25, 2011

Invited Talk - Philippe Block - November 3, 2010

Invited Talk - Lorenz Lachauer - September 3, 2010

Invited Talk - Kiran Varanasi - July 15, 2010

Invited Talk - Prof. Niloy J. Mitra - June 16, 2010

Invited Talk - Dr. Michael M. Bronstein - April 27, 2010

Invited Talk - Dr. Carsten Stoll - March 19, 2010

LGG Open Day - February 22, 2010
École Polytechnique Fédérale de Lausanne, School of Computer and Communication Sciences Computer Graphics and Geometry Laboratory, BC 350 Station 14, CH-1015 Lausanne
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