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https://doi.org/10.5220/000566...
Article . 2016 . Peer-reviewed
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Hessian Eigenfunctions for Triangular Mesh Parameterization

Authors: Daniel Mejia 0001; Oscar Ruiz-Salguero; Carlos A. Cadavid;

Hessian Eigenfunctions for Triangular Mesh Parameterization

Abstract

Hessian Locally Linear Embedding (HLLE) is an algorithm that computes the nullspace of a Hessian functional H for Dimensionality Reduction (DR) of a sampled manifold M. This article presents a variation of classic HLLE for parameterization of 3D triangular meshes. Contrary to classic HLLE which estimates local Hessian nullspaces, the proposed approach follows intuitive ideas from Differential Geometry where the local Hessian is estimated by quadratic interpolation and a partition of unity is used to join all neighborhoods. In addition, local average triangle normals are used to estimate the tangent plane TxM at x 2 M instead of PCA, resulting in local parameterizations which reflect better the geometry of the surface and perform better when the mesh presents sharp features. A high frequency dataset (Brain) is used to test our algorithm resulting in a higher rate of success (96:63%) compared to classic HLLE (76:4%).

Country
Colombia
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Keywords

Eigenvalues and eigenfunctions, Parametrizaciones, Interpolation spaces, Matriz Hessiana, Mesh generation, Geometry, Parameterization, Geometry, differential, Dimensionality reduction, Reducción de dimensionalidad, ESPACIOS DE INTERPOLACIÓN, Manifolds (Mathematics), Manifold learning, Computer graphics, FUNCIONES VECTORIALES, Statistical tests, Hessian locally linear embedding, Computer vision, Differential geometry, Mesh parameterization, GEOMETRÍA DIFERENCIAL, Algorithms, VARIEDADES (MATEMÁTICAS)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
4
Average
Average
Average
Green