Symposium on Point Based Graphics 07
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Self-Similarity-Based Compression of Point Clouds, with Application to Ray Tracing
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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 ...
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