SGP: Eurographics Symposium on Geometry Processing: Recent submissions

Now showing items 321-340 of 378

    • Seamless Texture Atlases 

      Purnomo, Budirijanto; Cohen, Jonathan D.; Kumar, Subodh (The Eurographics Association, 2004)
      Texture atlas parameterization provides an effective way to map a variety of color and data attributes from 2D texture domains onto polygonal surface meshes. However, the individual charts of such atlases are typically ...

    • Connectivity Transformation for Mesh Metamorphosis 

      Ahn, Minsu; Lee, Seungyong; Seidel, Hans-Peter (The Eurographics Association, 2004)
      In previous mesh morphing techniques, the vertex set and connectivity of an in-between mesh are fixed and only the vertex positions are interpolated between input meshes. With this restriction, to accurately represent both ...

    • Geometric Texture Synthesis by Example 

      Bhat, Pravin; Ingram, Stephen; Turk, Greg (The Eurographics Association, 2004)
      Patterns on real-world objects are often due to variations in geometry across the surface. Height fields and other common parametric methods cannot synthesize many forms of geometric surface texture such as thorns, scales, ...

    • Iso-charts: Stretch-driven Mesh Parameterization using Spectral Analysis 

      Zhou, Kun; Synder, John; Guo, Baining; Shum, Heung-Yeung (The Eurographics Association, 2004)
      We describe a fully automatic method, called iso-charts, to create texture atlases on arbitrary meshes. It is the first to consider stretch not only when parameterizing charts, but also when forming charts. The output atlas ...

    • Comparing Point Clouds 

      Mémoli, Facundo; Sapiro, Guillermo (The Eurographics Association, 2004)
      Point clouds are one of the most primitive and fundamental surface representations. A popular source of point clouds are three dimensional shape acquisition devices such as laser range scanners. Another important field ...

    • Registration of Point Cloud Data from a Geometric Optimization Perspective 

      Mitra, Niloy J.; Gelfand, Natasha; Pottmann, Helmut; Guibas, Leonidas (The Eurographics Association, 2004)
      We propose a framework for pairwise registration of shapes represented by point cloud data (PCD). We assume that the points are sampled from a surface and formulate the problem of aligning two PCDs as a minimization of the ...

    • Spectral Surface Reconstruction From Noisy Point Clouds 

      Kolluri, Ravikrishna; Shewchuk, Jonathan Richard; O'Brien, James F. (The Eurographics Association, 2004)
      We introduce a noise-resistant algorithm for reconstructing a watertight surface from point cloud data. It forms a Delaunay tetrahedralization, then uses a variant of spectral graph partitioning to decide whether each ...

    • 3D Reconstruction Using Labeled Image Regions 

      Ziegler, Remo; Matusik, Wojciech; Pfister, Hanspeter; McMillan, Leonard (The Eurographics Association, 2003)
      In this paper we present a novel algorithm for reconstructing 3D scenes from a set of images. The user defines a set of polygonal regions with corresponding labels in each image using familiar 2D photo-editing tools. Our ...

    • Approximate Implicitization Via Curve Fitting 

      Wurm, E.; Jüttler, B. (The Eurographics Association, 2003)
      We discuss methods for fitting implicitly defined (e.g. piecewise algebraic) curves to scattered data, which may contain problematic regions, such as edges, cusps or vertices. As the main idea, we construct a bivariate ...

    • Approximating and Intersecting Surfaces from Points 

      Adamson, Anders; Alexa, Marc (The Eurographics Association, 2003)
      Point sets become an increasingly popular shape representation. Most shape processing and rendering tasks require the approximation of a continuous surface from the point data. We present a surface approximation that is ...

    • A Geometric Convection Approach of 3-D Reconstruction 

      Chaine, Raphaëlle (The Eurographics Association, 2003)
      This paper introduces a fast and efficient algorithm for surface reconstruction. As many algorithms of this kind, it produces a piecewise linear approximation of a surface S from a finite, sufficiently dense, subset of its ...

    • Mesh Forging: Editing of 3D-Meshes Using Implicitly Defined Occluders 

      Bendels, G. H.; Klein, R. (The Eurographics Association, 2003)
      In recent years the ease of use and the flexibility in the editing process shifted into focus in modelling and animation applications. In this spirit we present a 3D mesh editing method that is similar to the simple ...

    • Filling Holes in Meshes 

      Liepa, Peter (The Eurographics Association, 2003)
      We describe a method for filling holes in unstructured triangular meshes. The resulting patching meshes interpolate the shape and density of the surrounding mesh. Our methods work with arbitrary holes in oriented connected ...

    • A Geometric Database for Gene Expression Data 

      Ju, Tao; Warren, Joe; Eichele, Gregor; Thaller, Christina; Chiu, Wah; Carson, James (The Eurographics Association, 2003)
      As the logical next step after sequencing the mouse genome, biologists have developed laboratory methods for rapidly determining where each of the 30K genes in the mouse genome is synthesizing protein. Applying these methods ...

    • Estimating Differential Quantities Using Polynomial Fitting of Osculating Jets 

      Cazals, F.; Pouget, M. (The Eurographics Association, 2003)
      This paper addresses the pointwise estimation of differential properties of a smooth manifold S -a curve in the plane or a surface in 3D- assuming a point cloud sampled over S is provided. The method consists of fitting ...

    • Stellar Subdivision Grammars 

      Velho, Luiz (The Eurographics Association, 2003)
      In this paper we develop a new description for subdivision surfaces based on a graph grammar formalism. Subdivision schemes are specified by a context sensitive grammar in which production rules represent topological and ...

    • Rotation Invariant Spherical Harmonic Representation of 3D Shape Descriptors 

      Kazhdan, Michael; Funkhouser, Thomas; Rusinkiewicz, Szymon (The Eurographics Association, 2003)
      One of the challenges in 3D shape matching arises from the fact that in many applications, models should be considered to be the same if they differ by a rotation. Consequently, when comparing two models, a similarity ...

    • Multi-Chart Geometry Images 

      Sander, P. V.; Wood, Z. J.; Gortler, S. J.; Snyder, J.; Hoppe, H. (The Eurographics Association, 2003)
      We introduce multi-chart geometry images, a new representation for arbitrary surfaces. It is created by resampling a surface onto a regular 2D grid. Whereas the original scheme of Gu et al. maps the entire surface onto a ...

    • Smooth Geometry Images 

      Losasso, F.; Hoppe, H.; Schaefer, S.; Warren, J. (The Eurographics Association, 2003)
      Previous parametric representations of smooth genus-zero surfaces require a collection of abutting patches (e.g. splines, NURBS, recursively subdivided polygons). We introduce a simple construction for these surfaces using ...

    • Global Conformal Surface Parameterization 

      Gu, Xianfeng; Yau, Shing-Tung (The Eurographics Association, 2003)
      We solve the problem of computing global conformal parameterizations for surfaces with nontrivial topologies. The parameterization is global in the sense that it preserves the conformality everywhere except for a few points, ...