Browsing 39-Issue 5 by Title
Now showing items 11-22 of 22
-
Integer-Grid Sketch Simplification and Vectorization
(The Eurographics Association and John Wiley & Sons Ltd., 2020)A major challenge in line drawing vectorization is segmenting the input bitmap into separate curves. This segmentation is especially problematic for rough sketches, where curves are depicted using multiple overdrawn strokes. ... -
Interactive Sculpting of Digital Faces Using an Anatomical Modeling Paradigm
(The Eurographics Association and John Wiley & Sons Ltd., 2020)Digitally sculpting 3D human faces is a very challenging task. It typically requires either 1) highly-skilled artists using complex software packages for high quality results, or 2) highly-constrained simple interfaces for ... -
Interpolated Corrected Curvature Measures for Polygonal Surfaces
(The Eurographics Association and John Wiley & Sons Ltd., 2020)A consistent and yet practically accurate definition of curvature onto polyhedral meshes remains an open problem. We propose a new framework to define curvature measures, based on the Corrected Normal Current, which ... -
A Laplacian for Nonmanifold Triangle Meshes
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We describe a discrete Laplacian suitable for any triangle mesh, including those that are nonmanifold or nonorientable (with or without boundary). Our Laplacian is a robust drop-in replacement for the usual cotan matrix, ... -
Learning Part Boundaries from 3D Point Clouds
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a method that detects boundaries of parts in 3D shapes represented as point clouds. Our method is based on a graph convolutional network architecture that outputs a probability for a point to lie in an area that ... -
Medial Axis Isoperimetric Profiles
(The Eurographics Association and John Wiley & Sons Ltd., 2020)Recently proposed as a stable means of evaluating geometric compactness, the isoperimetric profile of a planar domain measures the minimum perimeter needed to inscribe a shape with prescribed area varying from 0 to the ... -
Nonlinear Deformation Synthesis via Sparse Principal Geodesic Analysis
(The Eurographics Association and John Wiley & Sons Ltd., 2020)This paper introduces the construction of a low-dimensional nonlinear space capturing the variability of a non-rigid shape from a data set of example poses. The core of the approach is a Sparse Principal Geodesic Analysis ... -
A Parametric Analysis of Discrete Hamiltonian Functional Maps
(The Eurographics Association and John Wiley & Sons Ltd., 2020)In this paper we develop an in-depth theoretical investigation of the discrete Hamiltonian eigenbasis, which remains quite unexplored in the geometry processing community. This choice is supported by the fact that Dirichlet ... -
Poisson Surface Reconstruction with Envelope Constraints
(The Eurographics Association and John Wiley & Sons Ltd., 2020)Reconstructing surfaces from scanned 3D points has been an important research area for several decades. One common approach that has proven efficient and robust to noise is implicit surface reconstruction, i.e. fitting to ... -
Properties of Laplace Operators for Tetrahedral Meshes
(The Eurographics Association and John Wiley & Sons Ltd., 2020)Discrete Laplacians for triangle meshes are a fundamental tool in geometry processing. The so-called cotan Laplacian is widely used since it preserves several important properties of its smooth counterpart. It can be derived ... -
A Simple Discretization of the Vector Dirichlet Energy
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present a simple and concise discretization of the covariant derivative vector Dirichlet energy for triangle meshes in 3D using Crouzeix-Raviart finite elements. The discretization is based on linear discontinuous ... -
Topology-Aware Surface Reconstruction for Point Clouds
(The Eurographics Association and John Wiley & Sons Ltd., 2020)We present an approach to incorporate topological priors in the reconstruction of a surface from a point scan. We base the reconstruction on basis functions which are optimized to provide a good fit to the point scan while ...