Directed connected operators: asymmetric hierarchies for image filtering and segmentation

Abstract : Connected operators provide well-established solutions for digital image processing, typically in conjunction with hierarchical schemes. In graph-based frameworks, such operators basically rely on symmetric adjacency relations between pixels. In this article, we introduce a notion of directed connected operators for hierarchical image processing, by also considering non-symmetric adjacency relations. The induced image representation models are no longer partition hierarchies (i.e., trees), but directed acyclic graphs that generalize standard morphological tree structures such as component trees, binary partition trees or hierarchical watersheds. We describe how to efficiently build and handle these richer data structures, and we illustrate the versatility of the proposed framework in image filtering and image segmentation.
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IEEE Transactions on Pattern Analysis and Machine Intelligence, Institute of Electrical and Electronics Engineers, 2015, 37 (6), pp.1162-1176. <http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6942199>. <10.1109/TPAMI.2014.2366145>
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Soumis le : mercredi 19 novembre 2014 - 14:30:58
Dernière modification le : vendredi 6 janvier 2017 - 13:27:23
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Benjamin Perret, Jean Cousty, Olena Tankyevych, Hugues Talbot, Nicolas Passat. Directed connected operators: asymmetric hierarchies for image filtering and segmentation. IEEE Transactions on Pattern Analysis and Machine Intelligence, Institute of Electrical and Electronics Engineers, 2015, 37 (6), pp.1162-1176. <http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6942199>. <10.1109/TPAMI.2014.2366145>. <hal-00869727v2>

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