December 5th 2pm, room Byron beige By Xavier Rolland-Nevière The need for robust and blind watermarking techniques for triangular meshes has grown alongside their ever more pervasive use in, e.g., video games and movie productions. One of the most successful approaches consists in altering the distances between the vertices and…
by Dmitry Anisimov (università della svizzera italiana, Lugano) Astract: Nowadays, there exists a lot of different types of generalized barycentric coordinates. First, introduced by famous German mathematician and theoretical astronomer August Ferdinand Mobius in 1827, they have become widely used last decade due to their simple construction and variety of…
by Marcel Campen (RWTH Aachen University) on Monday October 7th at 11am in room Byron beige. Many surface representations require a partitioning of the surface which is to be represented into quadrilateral regions. For instance, this is the case for representations based on Bézier or NURBS patches as well as…
by Niloy Mitra (UCL) Wednesday October 16th at 2pm in Byron blanc Recent times has seen an explosion of 3D content, either acquired using scanners or synthesized using modeling tools. Such growing model collections necessitate the development of algorithms to analyze, explore, organize, and synthesize such massive collections. In this talk, I will talk about methods both in terms…
by Henrik Zimmer (Aachen) Thursday July 11th at 2pm in Byron blanc A hot topic in modern architecture is the efficient rationalization of freeform designs. An important class of structures tightly related to geometry processing are frame (or mesh) supported structures, where fabrication costs can quickly skyrocket when not just…
by Simon Giraudot Friday June 21st at 11am in Byron blanc We propose a noise-adaptive shape reconstruction method specialized to smooth, closed shapes. Our algorithm takes as input a defect-laden point set with variable noise and outliers, and comprises three main steps. First, we compute a novel noise-adaptive distance function…
by J. Demantke (IGN) May 21st at 2pm in Byron blanc -1- Geometric feature extraction from lidar point clouds. We aim to provide very generic features that describe the local geometry around each 3D point. Difficulties in choosing an optimal neighborhood for this task are discussed, then the proposed method…
by David Salinas (Gipsa-Lab Grenoble) May 2nd at 2pm in Byron blanc Given a set of points that sample a manifold, it has been proved recently that, under some density requirements, the Rips complex of the points provides an approximation of the manifold with the correct topology. One advantage of…
by Camille Couprie (Courant Institute) February 7th at 11 am in Byron beige Many computer vision applications such as image filtering, segmentation and stereo-vision reconstruction may be formulated as optimization problems. Recently discrete, convex, globally optimal methods have received a lot of attention. However, a drawback of several graph-based methods…
