Article (Scientific journals)
Morphological erosions and openings: fast algorithms based on anchors
Van Droogenbroeck, Marc; Buckley, Michael
2005In Journal of Mathematical Imaging and Vision, 22 (2-3), p. 121-142
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Keywords :
Image; Vision; Mathematical morphology; Opening
Abstract :
[en] Several efficient algorithms for computing erosions and openings have been proposed recently. They improve on VAN HERK's algorithm in terms of number of comparisons for large structuring elements. In this paper we introduce a theoretical framework of anchors that aims at a better understanding of the process involved in the computation of erosions and openings. It is shown that the knowledge of opening anchors of a signal f is sufficient to perform both the erosion and the opening of f. Then we propose an algorithm for one-dimensional erosions and openings which exploits opening anchors. This algorithm improves on the fastest algorithms available in literature by approximately 30% in terms of computation speed, for a range of structuring element sizes and image contents
Disciplines :
Electrical & electronics engineering
Author, co-author :
Van Droogenbroeck, Marc  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Télécommunications
Buckley, Michael
Language :
English
Title :
Morphological erosions and openings: fast algorithms based on anchors
Publication date :
May 2005
Journal title :
Journal of Mathematical Imaging and Vision
ISSN :
0924-9907
eISSN :
1573-7683
Publisher :
Kluwer Academic Publishers, Netherlands
Volume :
22
Issue :
2-3
Pages :
121-142
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 26 November 2008

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