ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE
Computer Graphics and Geometry Laboratory
Upcoming Events
Invited Talk
Speakers: Michael Wand,
Max-Planck-Institut für Informatik.
Thursday, October 25th, 11:00am, in BC 329
Title: 3D Correspondences and Applications
Abstract:
The talk will discuss recent work that has been done within the "Statistical Geometry Processing" group at MPI Informatics and Saarland University. We are working on "shape understanding" algorithms, i.e., algorithms that aim at discovering structure in geometric data sets and utilize it for analysis and modeling. Humans understand shapes already at an intuitive level. However, finding a formal model that explains "structure" in shapes to a certain extend is a major scientific challenge. In addition to being able to capture meaningful aspects, the models also need to be simple enough to permit efficient and robust algorithms for discovering such structure in data. The talk will focus on correspondence analysis as one approach to this problem: First, we establish correspondences between shapes, i.e., detect pieces of geometry that are essentially similar and relate these to each other. I will discuss various techniques to efficiently and robustly compute correspondences between shapes, allowing for different types of invariance. Second, we can go up one level of abstraction and look at the structure of the obtained correspondences: Assuming we have discovered multiple, potentially overlapping pairs of regions of equivalence within a piece of geometry, what does this tell us about the shape? This question is addressed by "inverse procedural modeling" techniques that characterize families of shapes that are similar to an example piece. We use correspondence information to derive shape docking rules and, alternatively, algebraic invariants to describe such shape spaces in a constructive manner.
Thursday, October 25th, 11:00am, in BC 329
Title: 3D Correspondences and Applications
Abstract:
The talk will discuss recent work that has been done within the "Statistical Geometry Processing" group at MPI Informatics and Saarland University. We are working on "shape understanding" algorithms, i.e., algorithms that aim at discovering structure in geometric data sets and utilize it for analysis and modeling. Humans understand shapes already at an intuitive level. However, finding a formal model that explains "structure" in shapes to a certain extend is a major scientific challenge. In addition to being able to capture meaningful aspects, the models also need to be simple enough to permit efficient and robust algorithms for discovering such structure in data. The talk will focus on correspondence analysis as one approach to this problem: First, we establish correspondences between shapes, i.e., detect pieces of geometry that are essentially similar and relate these to each other. I will discuss various techniques to efficiently and robustly compute correspondences between shapes, allowing for different types of invariance. Second, we can go up one level of abstraction and look at the structure of the obtained correspondences: Assuming we have discovered multiple, potentially overlapping pairs of regions of equivalence within a piece of geometry, what does this tell us about the shape? This question is addressed by "inverse procedural modeling" techniques that characterize families of shapes that are similar to an example piece. We use correspondence information to derive shape docking rules and, alternatively, algebraic invariants to describe such shape spaces in a constructive manner.
Past conferences
Symposium on Geometry Processing 2011
Past Events
Invited Talk - Andrea Tagliasacchi - October 19th 2012
Invited Talk - Victor Adrian Prisacariu - August 31st 2012
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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