WlCount: Geological lamination detection and counting using an image analysis approach

Détails

Ressource 1Télécharger: Computers-Geosciences.pdf (5679.75 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_BB550800168D
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
WlCount: Geological lamination detection and counting using an image analysis approach
Périodique
Computers & Geosciences
Auteur⸱e⸱s
Oriani Fabio, Treble Pauline C., Baker Andy, Mariethoz Gregoire
ISSN
0098-3004
Statut éditorial
Publié
Date de publication
03/2022
Peer-reviewed
Oui
Volume
160
Pages
105037
Langue
anglais
Résumé
The manual identification and count of laminae in layered textures is a common practice in the study of geological records, which can be time consuming and carry large uncertainty for dense or disturbed lamina textures. We present here a novel image analysis approach to detect and count laminae in geoscientific imagery, called WlCount. Based on Dynamic Time Warping and Wavelet analysis, WlCount firstly aligns persistent vertical elements to increase the continuity of the lamina structure. Then, using a graphical interface, the user extracts the most significant signal frequencies and allows the automatic count of the laminae. The software, tested on a series of stalagmite cut images showing different types of laminations and a tree-ring image, provides an estimation of the laminae detection and count comparable to the manual one. WlCount presents as a useful open-source tool to help geoscientists, sensibly speeding up the lamination count process.
Mots-clé
Laminae count, Stalagmite, Tree rings, Geochronology, Dynamic time warping
Web of science
Création de la notice
08/03/2022 10:36
Dernière modification de la notice
03/12/2022 7:13
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