November 12, 2014 – Euler Violet Title: Robust 3D Watermarking Abstract: 3D models are valuable assets widely used in the entertainment industry and likely to face piracy issues. This presentation summarizes my Ph.D. research on the protection of static meshes through robust watermarking. Watermarking enables copyright holders to perform traitor-tracing…
Date: september 24th, at 2pm Abstract: NURBS (Non-Uniform Rational Basis Spline) is a mathematical model that has become a standard in the modeling community for generating and representing curves and surfaces. For some specific applications such as computational engineering or real-time rendering, the NURBS surfaces must be converted into isotropic…
July 16 at 10:30am in room Byron beige Abstract: A NURBS model is usually created by several NURBS patches (trimmed or untrimmed) stitched together. The unavoidable gaps between trimmed patches have long been an issue in industry. Because many applications, such as manufacturing and physical analysis, do not tolerate gaps,…
Abstract: 4D multiview reconstruction of moving actors has many applications in the entertainment industry and although studios providing such services become more accessible, efforts have to be done in order to improve the underlying technology to produce high-quality 4D contents. In this paper, we enable surface matching for an animated…
Abstract: In this talk, I will present a series of recent works (some of them unpublished) that found unexpected applications to power diagrams (and more generally, power duals of triangulations), including image dithering, masonry design, and Lagrangian fluid simulation. Mathieu Desbrun is the John W. & Herberta M. Miles Professor…
Abstract: We present a method for surface approximation that yields closed surfaces within geometric guarantees. Through refinement we construct a piecewise linear function on a 3D triangulation within the tolerance volume, whose isosurface is an intersection-free surface triangle mesh. Further, the algorithm provides strict guarantees over global approximation error of…
Abstract: Polyhedral meshes are defined as general polygonal meshes with planar faces. These meshes have attracted recent attention, mainly due to their benefits in industrial and architectural design. I will present a framework that provides a parametrization of the deformation shape space of polyhedral meshes. Such parametrization allows for efficient…
Abstract By combining geometric considerations with modern optimization methods and computing power, the research area of Architectural Geometry strives to bridge the gap between creative architectural freeform designs and their efficient realization. In this talk, a set of novel optimization approaches for dealing with three different architecturally motivated optimization tasks…
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…
