Browsing SGP07: Eurographics Symposium on Geometry Processing by Issue Date
Now showing items 1-20 of 28
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Multilevel Streaming for Out-of-Core Surface Reconstruction
(The Eurographics Association, 2007)Reconstruction of surfaces from huge collections of scanned points often requires out-of-core techniques, and most such techniques involve local computations that are not resilient to data errors. We show that a Poisson-based ... -
Linear Angle Based Parameterization
(The Eurographics Association, 2007)In the field of mesh parameterization, the impact of angular and boundary distortion on parameterization quality have brought forward the need for robust and efficient free boundary angle preserving methods. One of the ... -
Delaunay Mesh Construction
(The Eurographics Association, 2007)We present algorithms to produce Delaunay meshes from arbitrary triangle meshes by edge flipping and geometrypreserving refinement and prove their correctness. In particular we show that edge flipping serves to reduce mesh ... -
Shape Optimization Using Reflection Lines
(The Eurographics Association, 2007)Many common objects have highly reflective metallic or painted finishes. Their appearance is primarily defined by the distortion the curved shape of the surface introduces in the reflections of surrounding objects. Reflection ... -
Dynamic Geometry Registration
(The Eurographics Association, 2007)We propose an algorithm that performs registration of large sets of unstructured point clouds of moving and deforming objects without computing correspondences. Given as input a set of frames with dense spatial and temporal ... -
Generalized Surface Flows for Mesh Processing
(The Eurographics Association, 2007)Geometric flows are ubiquitous in mesh processing. Curve and surface evolutions based on functional minimization have been used in the context of surface diffusion, denoising, shape optimization, minimal surfaces, and ... -
Constraint-based Fairing of Surface Meshes
(The Eurographics Association, 2007)We propose a constraint-based method for the fairing of surface meshes. The main feature of our approach is that the resulting smoothed surface remains within a prescribed distance to the input mesh. For example, specifying ... -
Bayesian Surface Reconstruction via Iterative Scan Alignment to an Optimized Prototype
(The Eurographics Association, 2007)This paper introduces a novel technique for joint surface reconstruction and registration. Given a set of roughly aligned noisy point clouds, it outputs a noise-free and watertight solid model. The basic idea of the new ... -
Laplace-Beltrami Eigenfunctions for Deformation Invariant Shape Representation
(The Eurographics Association, 2007)A deformation invariant representation of surfaces, the GPS embedding, is introduced using the eigenvalues and eigenfunctions of the Laplace-Beltrami differential operator. Notably, since the definition of the GPS embedding ... -
Example-Based Skeleton Extraction
(The Eurographics Association, 2007)We present a method for extracting a hierarchical, rigid skeleton from a set of example poses. We then use this skeleton to not only reproduce the example poses, but create new deformations in the same style as the examples. ... -
As-Rigid-As-Possible Surface Modeling
(The Eurographics Association, 2007)Modeling tasks, such as surface deformation and editing, can be analyzed by observing the local behavior of the surface. We argue that defining a modeling operation by asking for rigidity of the local transformations is ... -
Unconstrained Isosurface Extraction on Arbitrary Octrees
(The Eurographics Association, 2007)This paper presents a novel algorithm for generating a watertight level-set from an octree. We show that the level- set can be efficiently extracted regardless of the topology of the octree or the values assigned to the ... -
Voronoi-based Variational Reconstruction of Unoriented Point Sets
(The Eurographics Association, 2007)We introduce an algorithm for reconstructing watertight surfaces from unoriented point sets. Using the Voronoi diagram of the input point set, we deduce a tensor field whose principal axes and eccentricities locally represent ... -
Reconstruction of Deforming Geometry from Time-Varying Point Clouds
(The Eurographics Association, 2007)In this paper, we describe a system for the reconstruction of deforming geometry from a time sequence of unstructured, noisy point clouds, as produced by recent real-time range scanning devices. Our technique reconstructs ... -
Developable Surfaces from Arbitrary Sketched Boundaries
(The Eurographics Association, 2007)We present a method for extracting a hierarchical, rigid skeleton from a set of example poses. We then use this skeleton to not only reproduce the example poses, but create new deformations in the same style as the examples. ... -
Shape Reconstruction from Unorganized Cross-sections
(The Eurographics Association, 2007)In this paper, we consider the problem of reconstructing a shape from unorganized cross-sections. The main motivation for this problem comes from medical imaging applications where cross-sections of human organs are obtained ... -
Discrete Laplace operators: No free lunch
(The Eurographics Association, 2007)Discrete Laplace operators are ubiquitous in applications spanning geometric modeling to simulation. For robustness and efficiency, many applications require discrete operators that retain key structural properties inherent ... -
GPU-assisted Positive Mean Value Coordinates for Mesh Deformations
(The Eurographics Association, 2007)In this paper we introduce positive mean value coordinates (PMVC) for mesh deformation. Following the observations of Joshi et al. [JMD*07] we show the advantage of having positive coordinates. The control points of the ... -
Focal Surfaces of Discrete Geometry
(The Eurographics Association, 2007)The differential geometry of smooth three-dimensional surfaces can be interpreted from one of two perspectives: in terms of oriented frames located on the surface, or in terms of a pair of associated focal surfaces. These ... -
Elastic Secondary Deformations by Vector Field Integration
(The Eurographics Association, 2007)We present an approach for elastic secondary deformations of shapes described as triangular meshes. The deformations are steered by the simulation of a low number of simple mass-spring sets. The result of this simulation ...