curvature estimation

Integral based Curvature Estimators in Digital Geometry
In many geometry processing applications, the estimation of differential geometric quantities such as curvature or normal vector field …
D. Coeurjolly, Jacques-Olivier Lachaud, J. Levallois
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Integral based Curvature Estimators in Digital Geometry
Accurate Curvature Estimation along Digital Contours with Maximal Digital Circular Arcs
We propose in this paper a new curvature estimator based on the set of maximal digital circular arcs. For strictly convex shapes with …
T Roussillon, Jacques-Olivier Lachaud
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Accurate Curvature Estimation along Digital Contours with Maximal Digital Circular Arcs
Curvature estimation along noisy digital contours by approximate global optimization
In this paper, we introduce a new curvature estimator along digital contours, which we called global min-curvature (GMC) estimator. As …
B. Kerautret, Jacques-Olivier Lachaud
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Curvature estimation along noisy digital contours by approximate global optimization
Comparison of Discrete Curvature Estimators and Application to Corner Detection
Several curvature estimators along digital contours were proposed in recent works [1,2,3]. These estimators are adapted to non perfect …
B. Kerautret, Jacques-Olivier Lachaud, B. Naegel
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Comparison of Discrete Curvature Estimators and Application to Corner Detection
Discrete Contour Extraction from Reference Curvature Function
A robust discrete curvature estimator was recently proposed by Kerautret et al. [1]. In this paper, we exploit the precision and …
H. G. Nguyen, B. Kerautret, P. Desbarats, Jacques-Olivier Lachaud
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Discrete Contour Extraction from Reference Curvature Function
Robust estimation of curvature along digital contours with global optimization
In this paper we introduce a new curvature estimator based on global optimisation. This method called Global Min-Curvature exploits the …
B. Kerautret, Jacques-Olivier Lachaud
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Robust estimation of curvature along digital contours with global optimization
Curvature based corner detector for discrete, noisy and multi-scale contours
Estimating curvature on digital shapes is known to be a difficult problem even in high resolution images. Moreover the presence of …
B. Kerautret, Jacques-Olivier Lachaud, B. Naegel
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Curvature based corner detector for discrete, noisy and multi-scale contours
Maximal digital straight segments and convergence of discrete geometric estimators
Discrete geometric estimators approach geometric quantities on digitized shapes without any knowledge of the continuous shape. A …
F. de Vieilleville, Jacques-Olivier Lachaud, F. Feschet
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Maximal digital straight segments and convergence of discrete geometric estimators
Deformable Model with a Complexity Independent from Image Resolution
We present a parametric deformable model which recovers image components with a complexity independent from the resolution of input …
Jacques-Olivier Lachaud, B. Taton
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Deformable Model with a Complexity Independent from Image Resolution
Maximal digital straight segments and convergence of discrete geometric estimators
Discrete geometric estimators approach geometric quantities on digitized shapes without any knowledge of the continuous shape. A …
F. de Vieilleville, Jacques-Olivier Lachaud, F. Feschet
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Maximal digital straight segments and convergence of discrete geometric estimators