Browsing Symposium on Point Based Graphics 04 by Title
Now showing items 6-24 of 24
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Finite Elements on Point Based Surfaces
(The Eurographics Association, 2004)framework efficiently and effectively brings well-known PDE-based processing techniques to the field of point-based surfaces. Our method is based on the construction of local tangent planes and a local Delaunay triangulation ... -
Interactive 3D Painting on Point-Sampled Objects
(The Eurographics Association, 2004)We present a novel painting system for 3D objects. In order to overcome parameterization problems of existing applications, we propose a unified sample-based approach to represent geometry and appearance of the 3D object ... -
Interactive Point-Based Modeling from Dense Color and Sparse Depth
(The Eurographics Association, 2004)We are developing a system for interactive modeling of real world scenes. The acquisition device consists of a video camera enhanced with an attached laser system. As the operator sweeps the scene, the device acquires dense ... -
Interactive Silhouette Rendering for Point-Based Models
(The Eurographics Association, 2004)We present a new method for rendering silhouettes of point-based models. Due to the lack of connectivity information, most existing polygon-based silhouette generation algorithms cannot be applied to point-based models. ... -
Layered Point Clouds
(The Eurographics Association, 2004)We present a simple point-based multiresolution structure for interactive visualization of very large point sampled models on consumer graphics platforms. The structure is based on a hierarchy of precomputed object-space ... -
Meshing Point Clouds Using Spherical Parameterization
(The Eurographics Association, 2004)We present a simple method for meshing a 3D point cloud to a manifold genus-0 mesh. Our approach is based on recent methods for spherical embedding of planar graphs, where we use instead a k-nearest neighborhood graph of ... -
Multi-Resolution Sound Rendering
(The Eurographics Association, 2004)Point-based multi-resolution representations have been used successfully for rendering highly complex three dimensional scenes in real-time. In this paper, we apply this paradigm to sound rendering: A hierarchy of stochastic ... -
On Normals and Projection Operators for Surfaces Defined by Point Sets
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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 ...