Results 1 to 10 of about 737 (123)

Local barycentric coordinates [PDF]

open access: yesACM Transactions on Graphics, 2014
Barycentric coordinates yield a powerful and yet simple paradigm to interpolate data values on polyhedral domains. They represent interior points of the domain as an affine combination of a set of control points, defining an interpolation scheme for any function defined on a set of control points.
Juyong Zhang, Bailin Deng, Zishun Liu
exaly   +6 more sources

Variational Barycentric Coordinates

open access: yesACM Transactions on Graphics, 2023
We propose a variational technique to optimize for generalized barycentric coordinates that offers additional control compared to existing models. Prior work represents barycentric coordinates using meshes or closed-form formulae, in practice limiting the choice of objective function.
Ana Dodik   +2 more
exaly   +4 more sources

Convergence of barycentric coordinates to barycentric kernels [PDF]

open access: yesComputer Aided Geometric Design, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jiří Kosinka, Michael Barton
exaly   +3 more sources

Barycentric coordinates for convex sets [PDF]

open access: yesAdvances in Computational Mathematics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Joe Warren   +2 more
exaly   +2 more sources

Barycentric coordinates for polytopes

open access: yesComputers and Mathematics With Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
exaly   +3 more sources

Stochastic Computation of Barycentric Coordinates

open access: yesACM Transactions on Graphics
This paper presents a practical and general approach for computing barycentric coordinates through stochastic sampling. Our key insight is a reformulation of the kernel integral defining barycentric coordinates into a weighted least-squares minimization that enables Monte Carlo integration without sacrificing linear precision.
Fernando de Góes, Mathieu Desbrun
exaly   +4 more sources

Higher Order Barycentric Coordinates [PDF]

open access: yesComputer Graphics Forum, 2008
AbstractIn recent years, a wide range of generalized barycentric coordinates has been suggested. However, all of them lack control over derivatives. We show how the notion of barycentric coordinates can be extended to specify derivatives at control points. This is also known as Hermite interpolation. We introduce a method to modify existing barycentric
Torsten Langer, Hans-Peter Seidel
openaire   +3 more sources

On Spherical Barycentric Coordinates

open access: yesSSRN Electronic Journal, 2022
This paper describes a novel construction of generalized barycentric coordinates of points on a sphere with respect to the vertices of a given spherical polygon that is contained in a common hemisphere. While in the standard approach such coordinates are derived from their classical planar counterparts (e.g.
openaire   +2 more sources

Computing Skinning Weights via Convex Duality

open access: yesComputer Graphics Forum, EarlyView.
We present an alternate optimization method to compute bounded biharmonic skinning weights. Our method relies on a dual formulation, which can be optimized with a nonnegative linear least squares setup. Abstract We study the problem of optimising for skinning weights through the lens of convex duality.
J. Solomon, O. Stein
wiley   +1 more source

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