Jacques-Olivier Lachaud
Jacques-Olivier Lachaud
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Digital Deformable Model Simulating Active Contours
Deformable models are continuous energy-minimizing techniques that have been successfully applied to image segmentation and tracking …
F. de Vieilleville
,
Jacques-Olivier Lachaud
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Multiscale Analysis of Discrete Contours for Unsupervised Noise Detection
Blurred segments [2] were introduced in discrete geometry to address possible noise along discrete contours. The noise is not really …
B. Kerautret
,
Jacques-Olivier Lachaud
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Multiscale Discrete Geometry
This paper presents a first step in analyzing how digital shapes behave with respect to multiresolution. We first present an analysis …
M. Said
,
Jacques-Olivier Lachaud
,
F. Feschet
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Top-Down Segmentation of Histological Images Using a Digital Deformable Model
This paper presents a straightforward top-down segmentation method based on a contour approach on histological images. Our approach …
F. de Vieilleville
,
Jacques-Olivier Lachaud
,
P. Herlin
,
O. Lezoray
,
B. Plancoulaine
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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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Combinatorial view of digital convexity
The notion of convexity translates non-trivially from Euclidean geometry to discrete geometry, and detecting if a discrete region of …
S. Brlek
,
Jacques-Olivier Lachaud
,
X. Provençal
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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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Poster (PDF)
Experimental Comparison of Continuous and Discrete Tangent Estimators Along Digital Curves
Estimating the geometry of a digital shape or contour is an important task in many image analysis applications. This paper proposes an …
F. de Vieilleville
,
Jacques-Olivier Lachaud
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Slides (PDF)
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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Project
DOI
Fast, Accurate and Convergent Tangent Estimation on Digital Contours
This paper presents a new tangent estimator to digitized curves based on digital line recognition. It outperforms existing ones on …
Jacques-Olivier Lachaud
,
A. Vialard
,
F. de Vieilleville
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Code (DGtal)
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