MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network

Abstract Morphometry (i.e., the quantitative determination of grain size and shape information) is an essential component of all rock and environmental magnetic studies. Electron microscopy is often used to image magnetic mineral grains, but the current lack of systematic image processing tools make...

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Main Authors: Zhaowen Pei, Liao Chang, Pengfei Xue, Richard J. Harrison
Format: Article
Language:English
Published: Wiley 2022-06-01
Series:Geophysical Research Letters
Online Access:https://doi.org/10.1029/2022GL099118
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author Zhaowen Pei
Liao Chang
Pengfei Xue
Richard J. Harrison
author_facet Zhaowen Pei
Liao Chang
Pengfei Xue
Richard J. Harrison
author_sort Zhaowen Pei
collection DOAJ
description Abstract Morphometry (i.e., the quantitative determination of grain size and shape information) is an essential component of all rock and environmental magnetic studies. Electron microscopy is often used to image magnetic mineral grains, but the current lack of systematic image processing tools makes it challenging to quantify key morphological features of magnetic minerals in natural samples. Here, we present an easy‐to‐use machine learning framework MagNet for automated morphological recognition of magnetic mineral grains in microscopic images. This framework, based on a convolutional neural network, performs well in the recognition and classification of magnetofossil nanoparticles in transmission electron microscopy images after training and testing. MagNet is open‐source and can easily be extended to process different types of mineral images. This tool has the potential, therefore, to extract key quantitative information of magnetic mineral populations within heterogeneous terrestrial and meteoritic samples for the interpretations of Earth and planetary processes.
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institution Kabale University
issn 0094-8276
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language English
publishDate 2022-06-01
publisher Wiley
record_format Article
series Geophysical Research Letters
spelling doaj-art-d50976d54a094b77b7ba66549cc6bfd22025-01-22T14:38:16ZengWileyGeophysical Research Letters0094-82761944-80072022-06-014912n/an/a10.1029/2022GL099118MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural NetworkZhaowen Pei0Liao Chang1Pengfei Xue2Richard J. Harrison3Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University Beijing P. R. ChinaLaboratory of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University Beijing P. R. ChinaLaboratory of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University Beijing P. R. ChinaDepartment of Earth Sciences University of Cambridge Cambridge UKAbstract Morphometry (i.e., the quantitative determination of grain size and shape information) is an essential component of all rock and environmental magnetic studies. Electron microscopy is often used to image magnetic mineral grains, but the current lack of systematic image processing tools makes it challenging to quantify key morphological features of magnetic minerals in natural samples. Here, we present an easy‐to‐use machine learning framework MagNet for automated morphological recognition of magnetic mineral grains in microscopic images. This framework, based on a convolutional neural network, performs well in the recognition and classification of magnetofossil nanoparticles in transmission electron microscopy images after training and testing. MagNet is open‐source and can easily be extended to process different types of mineral images. This tool has the potential, therefore, to extract key quantitative information of magnetic mineral populations within heterogeneous terrestrial and meteoritic samples for the interpretations of Earth and planetary processes.https://doi.org/10.1029/2022GL099118
spellingShingle Zhaowen Pei
Liao Chang
Pengfei Xue
Richard J. Harrison
MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network
Geophysical Research Letters
title MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network
title_full MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network
title_fullStr MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network
title_full_unstemmed MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network
title_short MagNet: Automated Magnetic Mineral Grain Morphometry Using Convolutional Neural Network
title_sort magnet automated magnetic mineral grain morphometry using convolutional neural network
url https://doi.org/10.1029/2022GL099118
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AT liaochang magnetautomatedmagneticmineralgrainmorphometryusingconvolutionalneuralnetwork
AT pengfeixue magnetautomatedmagneticmineralgrainmorphometryusingconvolutionalneuralnetwork
AT richardjharrison magnetautomatedmagneticmineralgrainmorphometryusingconvolutionalneuralnetwork