Analysis and comparative evaluation of discrete tangent estimators
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
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
Authors
Professor of Computer Science
My research interests include digital geometry, geometry processing, image analysis, variational models and discrete calculus.