Volume 30 (2011): Recent submissions

Now showing items 81-100 of 236

    • On Approximation of the Laplace-Beltrami Operator and the Willmore Energy of Surfaces 

      Hildebrandt, Klaus; Polthier, Konrad (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Discrete Laplace Beltrami operators on polyhedral surfaces play an important role for various applications in geometry processing and related areas like physical simulation or computer graphics. While discretizations of ...

    • Multiscale Biharmonic Kernels 

      Rustamov, Raif M. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      This paper introduces a general principle for constructing multiscale kernels on surface meshes, and presents a construction of the multiscale pre-biharmonic and multiscale biharmonic kernels. Our construction is based on ...

    • A Complex View of Barycentric Mappings 

      Weber, Ofir; Ben-Chen, Mirela; Gotsman, Craig; Hormann, Kai (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Barycentric coordinates are very popular for interpolating data values on polyhedral domains. It has been recently shown that expressing them as complex functions has various advantages when interpolating two-dimensional ...

    • Large-Scale Integer Linear Programming for Orientation Preserving 3D Shape Matching 

      Windheuser, Thomas; Schlickewei, Ulrich; Schmidt, Frank R.; Cremers, Daniel (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We study an algorithmic framework for computing an elastic orientation-preserving matching of non-rigid 3D shapes. We outline an Integer Linear Programming formulation whose relaxed version can be minimized globally in ...

    • Deformable 3D Shape Registration Based on Local Similarity Transforms 

      Papazov, Chavdar; Burschka, Darius (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      In this paper, a new method for deformable 3D shape registration is proposed. The algorithm computes shape transitions based on local similarity transforms which allows to model not only as-rigid-as-possible deformations ...

    • An Optimization Approach to Improving Collections of Shape Maps 

      Nguyen, Andy; Ben-Chen, Mirela; Welnicka, Katarzyna; Ye, Yinyu; Guibas, Leonidas (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Finding an informative, structure-preserving map between two shapes has been a long-standing problem in geometry processing, involving a variety of solution approaches and applications. However, in many cases, we are given ...

    • A Condition Number for Non-Rigid Shape Matching 

      Ovsjanikov, Maks; Huang, Qi-Xing; Guibas, Leonidas (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Despite the large amount of work devoted in recent years to the problem of non-rigid shape matching, practical methods that can successfully be used for arbitrary pairs of shapes remain elusive. In this paper, we study the ...

    • Coarse-to-Fine Combinatorial Matching for Dense Isometric Shape Correspondence 

      Sahillioglu, Yusuf; Yemez, Yucel (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We present a dense correspondence method for isometric shapes, which is accurate yet computationally efficient. We minimize the isometric distortion directly in the 3D Euclidean space, i.e., in the domain where isometry ...

    • A Hierarchical Grid Based Framework for Fast Collision Detection 

      Fan, Wenshan; Wang, Bin; Paul, Jean-Claude; Sun, Jiaguang (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We present a novel hierarchical grid based method for fast collision detection (CD) for deformable models on GPU architecture. A two-level grid is employed to accommodate the non-uniform distribution of practical scene ...

    • A Multiscale Metric for 3D Mesh Visual Quality Assessment 

      Lavoué, Guillaume (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Many processing operations are nowadays applied on 3D meshes like compression, watermarking, remeshing and so forth; these processes are mostly driven and/or evaluated using simple distortion measures like the Hausdorff ...

    • Optimising Perceived Distortion in Lossy Encoding of Dynamic Meshes 

      Vá a, L.; Petrík, O. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Development of geometry data compression techniques in the past years has been limited by the lack of a metric with proven correlation with human perception of mesh distortion. Many algorithms have been proposed, but usually ...

    • Localized Delaunay Refinement for Volumes 

      Dey, Tamal K.; Slatton, Andrew G. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Delaunay refinement, recognized as a versatile tool for meshing a variety of geometries, has the deficiency that it does not scale well with increasing mesh size. The bottleneck can be traced down to the memory usage of ...

    • All-Hex Mesh Generation via Volumetric PolyCube Deformation 

      Gregson, James; Sheffer, Alla; Zhang, Eugene (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      While hexahedral mesh elements are preferred by a variety of simulation techniques, constructing quality all-hex meshes of general shapes remains a challenge. An attractive hex-meshing approach, often referred to as ...

    • Rational Bi-cubic G2 Splines for Design with Basic Shapes 

      Karciauskas, Kestutis; Peters, Jörg (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      The paper develops a rational bi-cubic G<sup>2</sup> (curvature continuous) analogue of the non-uniform polynomial C<sup>2</sup> cubic B-spline paradigm. These rational splines can exactly reproduce ...

    • CubeCover - Parameterization of 3D Volumes 

      Nieser, Matthias; Reitebuch, Ulrich; Polthier, Konrad (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Despite the success of quad-based 2D surface parameterization methods, effective parameterization algorithms for 3D volumes with cubes, i.e. hexahedral elements, are still missing. CUBECOVER is a first approach for generating ...

    • Surface Patches from Unorganized Space Curves 

      Abbasinejad, Fatemeh; Joshi, Pushkar; Amenta, Nina (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Recent 3D sketch tools produce networks of three-space curves that suggest the contours of shapes. The shapes may be non-manifold, closed three-dimensional, open two-dimensional, or mixed. We describe a system that ...

    • Functional Webs for Freeform Architecture 

      Deng, B.; Pottmann, Helmut; Wallner, Johannes (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Rationalization and construction-aware design dominate the issue of realizability of freeform architecture. The former means the decomposition of an intended shape into parts which are sufficiently simple and efficient to ...

    • Preface and Table of Contents 

      Mario Botsch and Scott Schaefer (The Eurographics Association and Blackwell Publishing Ltd., 2011)

    • Guided Image Filtering for Interactive High-quality Global Illumination 

      Bauszat, Pablo; Eisemann, Martin; Magnor, Marcus (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      Interactive computation of global illumination is a major challenge in current computer graphics research. Global illumination heavily affects the visual quality of generated images. It is therefore a key attribute for the ...

    • Coherent Out-of-Core Point-Based Global Illumination 

      Kontkanen, Janne; Tabellion, Eric; Overbeck, Ryan S. (The Eurographics Association and Blackwell Publishing Ltd., 2011)
      We describe a new technique for coherent out-of-core point-based global illumination and ambient occlusion. Point-based global illumination (PBGI) is used in production to render tremendously complex scenes, so in-core ...