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

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_BB550800168D
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
WlCount: Geological lamination detection and counting using an image analysis approach
Journal
Computers & Geosciences
Author(s)
Oriani Fabio, Treble Pauline C., Baker Andy, Mariethoz Gregoire
ISSN
0098-3004
Publication state
Published
Issued date
03/2022
Peer-reviewed
Oui
Volume
160
Pages
105037
Language
english
Abstract
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.
Keywords
Laminae count, Stalagmite, Tree rings, Geochronology, Dynamic time warping
Web of science
Create date
08/03/2022 10:36
Last modification date
01/06/2024 6:18
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