Edge detection by selection of pieces of level lines

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Title:	Edge detection by selection of pieces of level lines
Author:	Meinhardt Llopis, Enric
Other authors:	Universitat Pompeu Fabra
Abstract:	We propose an edge detector based on the selection of well/ncontrasted pieces of level lines, following the proposal of/nDesolneux-Moisan-Morel (DMM) [1]. The DMM edge detector/nhas the problem of over-representation, that is, every/nedge is detected several times in slightly different positions./nIn this paper we propose two modifications of the original/nDMM edge detector in order to solve this problem. The first/nmodification is a post-processing of the output using a general/nmethod to select the best representative of a bundle of curves./nThe second modification is the use of Canny’s edge detector/ninstead of the norm of the gradient to build the statistics. The/ntwo modifications are independent and can be applied separately./nElementary reasoning and some experiments show/nthat the best results are obtained when both modifications are/napplied together.
Subject(s):	-Imatges -- Processament -- Tècniques digitals -- Congressos -Imatges tridimensionals -- Congressos -Visualització tridimensional (Informàtica) -- Congressos -Edge detection -Canny -Computational/nGestalt
Rights:	© 2008 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works./nThe final published article can be found at http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4711829
Document type:	Conference Object Article - Accepted version
Published by:	Institute of Electrical and Electronics Engineers (IEEE)
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