Ultimate Opening Combined with Area Stability Applied to Urban Scenes - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

Ultimate Opening Combined with Area Stability Applied to Urban Scenes

(1) , (2) , (3)
1
2
3
Andrés Serna

Résumé

This paper explores the use of ultimate opening in urban analysis context. It demonstrates the efficiency of this approach for street level elevation images, derived from 3D point clouds acquired by terrestrial mobile mapping systems. An area-stability term is introduced in the residual definition, reducing the over-segmentation of the vegetation while preserving small significant regions. We compare two possible combinations of the Ultimate Opening and the Area Stability: first as a multiplicative factor, then as a subtractive term. On the one hand, multiplicative factor is very strict and many significant regions may be eliminated by the operator. On the other hand, a subtractive factor is more easily controlled according to the image dynamics. In our application, the latter provides the best results by preserving small meaningful objects such as poles and bollards while avoiding over-segmentation on more complex objects such as cars and trees.
Fichier principal
Vignette du fichier
ismm2017_mser_uo_published.pdf (2.84 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01527983 , version 1 (26-05-2017)

Identifiants

Citer

Beatriz Marcotegui, Andrés Serna, Jorge Hernández. Ultimate Opening Combined with Area Stability Applied to Urban Scenes. 13th International Symposium on Mathematical Morphology and Its Applications to Signal and Image Processing, May 2017, Fontainebleau, France. pp.261-268, ⟨10.1007/978-3-319-57240-6_21⟩. ⟨hal-01527983⟩
121 Consultations
153 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More