SPBG: Symposium on Point Based Graphics: Recent submissions

Now showing items 21-40 of 89

    • Self-Similarity-Based Compression of Point Clouds, with Application to Ray Tracing 

      Hubo, Erik; Mertens, Tom; Haber, Tom; Bekaert, Philippe (The Eurographics Association, 2007)
      Many real-world, scanned surfaces contain repetitive structures, like bumps, ridges, creases, and so on.We present a compression technique that exploits self-similarity within a point-sampled surface. Our method replaces ...

    • A Parallelly Decodeable Compression Scheme for Efficient Point-Cloud Rendering 

      Schnabel, Ruwen; Moeser, Sebastian; Klein, Reinhard (The Eurographics Association, 2007)
      We present a point-cloud compression algorithm that allows fast parallel decompression on the GPU for interactive applications. We achieve bitrates of less than four bits per normal-equipped point. Our method enables ...

    • Surfel-Based Billboard Hierarchies for Fast Rendering of 3D-Objects 

      Holst, Mathias; Schumann, Heidrun (The Eurographics Association, 2007)
      In recent years point hierarchies have been shown to be efficient for rendering high-detailed objects. Since texture access is much faster than vertex processing we propose to increase efficiency of point based rendering ...

    • On the use of Gromov-Hausdorff Distances for Shape Comparison 

      Memoli, Facundo (The Eurographics Association, 2007)
      It is the purpose of this paper to propose and discuss certain modifications of the ideas concerning Gromov- Hausdorff distances in order to tackle the problems of shape matching and comparison. These reformulations render ...

    • Topological Methods for the Analysis of High Dimensional Data Sets and 3D Object Recognition 

      Singh, Gurjeet; Memoli, Facundo; Carlsson, Gunnar (The Eurographics Association, 2007)
      We present a computational method for extracting simple descriptions of high dimensional data sets in the form of simplicial complexes. Our method, called Mapper, is based on the idea of partial clustering of the data ...

    • Efficient Point-Based Rendering Using Image Reconstruction 

      Marroquim, Ricardo; Kraus, Martin; Cavalcanti, Paulo Roma (The Eurographics Association, 2007)
      Image-space reconstruction of continuous surfaces from scattered one-pixel projections of points is known to potentially offer an advantageous time complexity compared to surface splatting techniques. We propose a new ...

    • Efficient Bounds for Point-Based Animations 

      Steinemann, Denis; Otaduy, Miguel A.; Gross, Markus (The Eurographics Association, 2007)
      We introduce a new and efficient approach for collision detection in point-based animations, based on the fast computation of tight surface bounds. Our approach is able to tightly bound a high-resolution surface with a ...

    • Approximate Star-Shaped Decomposition of Point Set Data 

      Lien, Jyh-Ming (The Eurographics Association, 2007)
      Simplification or decomposition is a common strategy to handle large geometric models, which otherwise require excessive computation to process. Star-shaped decomposition partitions a model into a set of star-shaped ...

    • Efficient Refinement of Dynamic Point Data 

      Solenthaler, Barbara; Zhang, Yanci; Pajarola, Renato (The Eurographics Association, 2007)
      Particle simulations as well as geometric modeling techniques have demonstrated their ability to process and render points interactively. However, real-time particle-based fluid simulations suffer from poor rendering quality ...

    • SIMOD: Making Freeform Deformation Size-Insensitive 

      Boubekeur, Tamy; Sorkine, Olga; Schlick, Christophe (The Eurographics Association, 2007)
      Freeform deformation techniques are powerful and flexible tools for interactive 3D shape editing. However, while interactivity is the key constraint for the usability of such tools, it cannot be maintained when the complexity ...

    • Interactive Editing of Large Point Clouds 

      Wand, Michael; Berner, Alexander; Bokeloh, Martin; Fleck, Arno; Hoffmann, Mark; Jenke, Philipp; Maier, Benjamin; Staneker, Dirk; Schilling, Andreas (The Eurographics Association, 2007)
      This paper describes a new out-of-core multi-resolution data structure for real-time visualization and interactive editing of large point clouds. In addition, an editing system is discussed that makes use of the novel data ...

    • Low-Discrepancy Point Sampling of Meshes for Rendering 

      Quinn, Jonathan A.; Langbein, Frank C.; Martin, Ralph R. (The Eurographics Association, 2007)
      A novel point sampling framework for polygonal meshes is presented, based on sampling a mesh according to a density-controlled low-discrepancy distribution. The local sampling density can be controlled by a density func- ...

    • Direct Computing of Surface Curvatures for Point-Set Surfaces 

      Yang, Pinghai; Qian, Xiaoping (The Eurographics Association, 2007)
      Accurate computing of the curvatures of a surface from its discrete form is of fundamental importance for many graphics and engineering applications. The moving least-squares (MLS) surface from Levin [Lev2003] and its ...

    • Sampling Point-Set Implicits 

      Proenca, Joao; Jorge, Joaquim A.; Sousa, Mario C. (The Eurographics Association, 2007)
      We present a novel approach for point-set implicit surface sampling that is able to rapidly distribute particles over the surface of 3D objects. Our methods benefit from the inner structure of a MPU implicit to obtain a ...

    • Integrating Mesh and Meshfree Methods for Physics-Based Fracture and Debris Cloud Simulation 

      Zhang, Nan; Zhou, Xiangmin; Sha, Desong; Yuan, Xiaoru; Tamma, Kumar; Chen, Baoquan (The Eurographics Association, 2006)
      We present a hybrid framework for physics-based simulation of fracture and debris clouds. Previous methods mainly consider bulk fractures. However, in many situations, small fractured pieces and debris are visually important. ...

    • Versatile Virtual Materials Using Implicit Connectivity 

      Wicke, Martin; Hatt, Philipp; Pauly, Mark; Müller, Matthias; Gross, Markus (The Eurographics Association, 2006)
      We propose a new method for strain computation in mesh-free simulations. Without storing connectivity information, we compute strain using local rest states that are implicitly defined by the current system configuration. ...

    • Instant Points: Fast Rendering of Unprocessed Point Clouds 

      Wimmer, Michael; Scheiblauer, Claus (The Eurographics Association, 2006)
      We present an algorithm to display enormous unprocessed point clouds at interactive rates without requiring long postprocessing. The novelty here is that we do not make any assumptions about sampling density or availability ...

    • Octree-based Point-Cloud Compression 

      Schnabel, Ruwen; Klein, Reinhard (The Eurographics Association, 2006)
      In this paper we present a progressive compression method for point sampled models that is specifically apt at dealing with densely sampled surface geometry. The compression is lossless and therefore is also suitable for ...

    • Efficient and Prioritized Point Subsampling for CSRBF Compression 

      Kitago, Masaki; Gopi, M. (The Eurographics Association, 2006)
      We present a novel cost function to prioritize points and subsample a point set based on the dominant geometric features and local sampling density of the model. This cost function is easy to compute and at the same time ...

    • Perceptually Guided Rendering of Textured Point-based Models 

      Qu, Lijun; Yuan, Xiaoru; Nguyen, Minh X.; Meyer, Gary W.; Chen, Baoquan; Windsheimer, Jered E. (The Eurographics Association, 2006)
      In this paper, we present a textured point-based rendering scheme that takes into account the masking properties of the human visual system. In our system high quality textures are mapped to point-based models. Given one ...