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Towards Globally Optimal Normal Orientations for Large Point Clouds
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
Various processing algorithms on point set surfaces rely on consistently oriented normals (e.g. Poisson surface reconstruction). While several approaches exist for the calculation of normal directions, in most cases, their ...
Accurate and Efficient Computation of Laplacian Spectral Distances and Kernels
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
This paper introduces the Laplacian spectral distances, as a function that resembles the usual distance map, but exhibits properties (e.g. smoothness, locality, invariance to shape transformations) that make them useful ...
4D Reconstruction of Blooming Flowers
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
Flower blooming is a beautiful phenomenon in nature as flowers open in an intricate and complex manner whereas petals bend, stretch and twist under various deformations. Flower petals are typically thin structures arranged ...
Partitioning Surfaces Into Quadrilateral Patches: A Survey
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
The efficient and practical representation and processing of geometrically or topologically complex shapes often demands a partitioning into simpler patches. Possibilities range from unstructured arrangements of arbitrarily ...
Geometric Detection Algorithms for Cavities on Protein Surfaces in Molecular Graphics: A Survey
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
Detecting and analysing protein cavities provides significant information about active sites for biological processes (e.g. protein–protein or protein–ligand binding) in molecular graphics and modelling. Using the ...
Enhancing Urban Façades via LiDAR‐Based Sculpting
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
Buildings with symmetrical façades are ubiquitous in urban landscapes and detailed models of these buildings enhance the visual realism of digital urban scenes. However, a vast majority of the existing urban building models ...
Extracting Sharp Features from RGB‐D Images
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
Sharp edges are important shape features and their extraction has been extensively studied both on point clouds and surfaces. We consider the problem of extracting sharp edges from a sparse set of colour‐and‐depth (RGB‐D) ...
Hexahedral Meshing With Varying Element Sizes
(© 2017 The Eurographics Association and John Wiley & Sons Ltd., 2017)
Hexahedral (or Hex‐) meshes are preferred in a number of scientific and engineering simulations and analyses due to their desired numerical properties. Recent state‐of‐the‐art techniques can generate high‐quality hex‐meshes. ...
On the Stability of Functional Maps and Shape Difference Operators
(© 2018 The Eurographics Association and John Wiley & Sons Ltd., 2018)
In this paper, we provide stability guarantees for two frameworks that are based on the notion of functional maps—the framework of shape difference operators and the one of analyzing and visualizing the deformations between ...
Improved Corners with Multi‐Channel Signed Distance Fields
(© 2018 The Eurographics Association and John Wiley & Sons Ltd., 2018)
We propose an extension to the state‐of‐the‐art text rendering technique based on sampling a 2D signed distance field from a texture. This extension significantly improves the visual quality of sharp corners, which is the ...