Analysis and comparative evaluation of discrete tangent estimators

Jacques-Olivier Lachaud, A. Vialard, F. de Vieilleville
January, 2005
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Abstract

This paper presents a comparative evaluation of tangent estimators based on digital line recognition on digital curves. The comparison is carried out with a comprehensive set of criteria: accuracy on smooth or polygonal shapes, behaviour on convex/concave parts, computation time, isotropy, aymptotic convergence. We further propose a new estimator mixing the qualities of existing ones and outperforming them on most mentioned points.

Type
Conference paper
Publication
Proc. Int. Conf. Discrete Geometry for Computer Imagery (DGCI'2005), Poitiers, France, volume 3429 of Lecture Notes in Computer Science, pp 240-251, 2005. Springer
discrete geometry digital geometry tangent estimation discrete geometric estimator digital straight segment 2D digital contour
Jacques-Olivier Lachaud
Jacques-Olivier Lachaud
Professor of Computer Science

My research interests include digital geometry, geometry processing, image analysis, variational models and discrete calculus.