Estimation of Separating Planes between Touching 3D Objects Using Power Watershed

Abstract : The problem of separating touching or overlapping objects is classical in imaging. Many solutions have been proposed in 2D. While similar, the problem in 3D has differentiating features: apparent overlap due to projection effects does not exist, but real or apparent interpenetration can occur only due to either physical particle fusion or partial volume effects. Often the ability to separate objects logically is sufficient, however sometimes finding the orientation of tangent separating plane is useful. In this article, we propose a method based on power watershed for separating 3D touching objects and estimate a precise separating plane. Power watershed is used in two steps, first to obtain individual object identification , and in a second step to allow sub-voxel accuracy in the plane fitting procedure. We show that our approach is much more precise than a simple seg-mentation. We illustrate this in an application involving the shearing of a sample of sand grains imaged in various configurations by micro-CT tomography. Our technique measures the orientation of the contacts between grains, a quantity that is explicitly used in soil mechanics modeling, but which has up until now been difficult to measure from experiments.
Type de document :
Communication dans un congrès
Cris L. Luengo Hendriks, Gunilla Borgefors, Robin Strand. 11th International Symposium on Mathematical Morphology and Its Applications to Signal and Image Processing (ISMM 2013), May 2013, Uppsala, Sweden. Springer, Lecture Note in Computer Science 7883, pp.452-463, 2013, Mathematical Morphology and Its Applications to Signal and Image Processing. 〈10.1007/978-3-642-38294-9_38〉
Liste complète des métadonnées

Littérature citée [22 références]  Voir  Masquer  Télécharger

https://hal-upec-upem.archives-ouvertes.fr/hal-01617159
Contributeur : Clara Jaquet <>
Soumis le : lundi 16 octobre 2017 - 11:52:47
Dernière modification le : jeudi 5 juillet 2018 - 14:23:42
Document(s) archivé(s) le : mercredi 17 janvier 2018 - 12:59:06

Fichier

Estimation_of_Separating_Plane...
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Clara Jaquet, Edward Andò, Gioacchino Viggiani, Hugues Talbot. Estimation of Separating Planes between Touching 3D Objects Using Power Watershed. Cris L. Luengo Hendriks, Gunilla Borgefors, Robin Strand. 11th International Symposium on Mathematical Morphology and Its Applications to Signal and Image Processing (ISMM 2013), May 2013, Uppsala, Sweden. Springer, Lecture Note in Computer Science 7883, pp.452-463, 2013, Mathematical Morphology and Its Applications to Signal and Image Processing. 〈10.1007/978-3-642-38294-9_38〉. 〈hal-01617159〉

Partager

Métriques

Consultations de la notice

122

Téléchargements de fichiers

52