Now showing items 13-24 of 24

    • On Normals and Projection Operators for Surfaces Defined by Point Sets 

      Alexa, Marc; Adamson, Anders (The Eurographics Association, 2004)
      Levin s MLS projection operator allows defining a surface from a set of points and represents a versatile procedure to generate points on this surface. Practical problems of MLS surfaces are a complicated non-linear ...
    • Phong Splatting 

      Botsch, Mario; Spernat, Michael; Kobbelt, Leif (The Eurographics Association, 2004)
      Surface splatting has developed into a valuable alternative to triangle meshes when it comes to rendering of highly detailed massive datasets. However, even highly accurate splat approximations of the given geometry may ...
    • Point-based Surface Rendering with Motion Blur 

      Guan, Xin; Mueller, Klaus (The Eurographics Association, 2004)
      In this paper we show how to extend point-based surface rendering to illustrate object motion. We do this by first extruding the circular points into ellipsoids, which fill the space traced out by the points in motion. ...
    • Points Reloaded: Point-Based Rendering Revisited 

      Sainz, Miguel; Pajarola, Renato; Lario, Roberto (The Eurographics Association, 2004)
      The increasing popularity of points as rendering primitives has led to a variety of different rendering algorithms, and in particular the different implementations compare like apples to oranges. In this paper we revisit ...
    • Post-processing of Scanned 3D Surface Data 

      Weyrich, T.; Pauly, M.; Keiser, R.; Heinzle, S.; Scandella, S.; Gross, M. (The Eurographics Association, 2004)
      3D shape acquisition has become a major tool for creating digital 3D surface data in a variety of application elds. Despite the steady increase in accuracy, most available scanning techniques cause severe scanning artifacts ...
    • Progressive Compression of Point-Sampled Models 

      Waschbüsch, M.; Gross, M.; Eberhard, F.; Lamboray, E.; Würmlin, S. (The Eurographics Association, 2004)
      decomposition of the point set and thus easily allows for progressive decoding. Our method is generic in the sense that it can handle arbitrary point attributes using attribute-specific coding operations. Furthermore, no ...
    • Proximity Graphs for Defining Surfaces over Point Clouds 

      Klein, Jan; Zachmann, Gabriel (The Eurographics Association, 2004)
      We present a new definition of an implicit surface over a noisy point cloud. It can be evaluated very fast, but, unlike other definitions based on the moving least squares approach, it does not suffer from artifacts. In ...
    • Real-Time Point Cloud Refinement 

      Guennebaud, G.; Barthe, L.; Paulin, M. (The Eurographics Association, 2004)
      Splatting-based rendering techniques are currently the best choice for efficient high quality rendering of pointbased geometries. However, such techniques are not suitable for large magnification, especially when the object ...
    • Shape Segmentation and Matching from Noisy Point Clouds 

      Dey, Tamal K.; Giesen, Joachim; Goswami, Samrat (The Eurographics Association, 2004)
      We present the implementation results of a shape segmentation technique and an associated shape matching method whose input is a point sample from the shape. The sample is allowed to be noisy in the sense that they may ...
    • Stratified Point Sampling of 3D Models 

      Nehab, Diego; Shilane, Philip (The Eurographics Association, 2004)
      Point sampling is an important intermediate step for a variety of computer graphics applications, and specialized sampling strategies have been developed to satisfy the requirements of each problem. In this article, we ...
    • Topological estimation using witness complexes 

      Silva, Vin de; Carlsson, Gunnar (The Eurographics Association, 2004)
      This paper tackles the problem of computing topological invariants of geometric objects in a robust manner, using only point cloud data sampled from the object. It is now widely recognised that this kind of topological ...
    • Uncertainty and Variability in Point Cloud Surface Data 

      Pauly, Mark; Mitra, Niloy J.; Guibas, Leonidas J. (The Eurographics Association, 2004)
      We present a framework for analyzing shape uncertainty and variability in point-sampled geometry. Our representation is mainly targeted towards discrete surface data stemming from 3D acquisition devices, where a finite ...