Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data

Accurate measurement of tree height is essential for ecological research, forest management, and carbon sequestration assessments. Traditional tools such as clinometers often face limitations due to terrain complexity, tree species variability, and operator dependency, while advanced technologies li...

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Main Authors: Mubarak Mahmud, Jianhong Lin, Mojtaba Houballah, Ibrahim Garba Buba, Laure Barthes
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Smart Agricultural Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2772375525000796
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author Mubarak Mahmud
Jianhong Lin
Mojtaba Houballah
Ibrahim Garba Buba
Laure Barthes
author_facet Mubarak Mahmud
Jianhong Lin
Mojtaba Houballah
Ibrahim Garba Buba
Laure Barthes
author_sort Mubarak Mahmud
collection DOAJ
description Accurate measurement of tree height is essential for ecological research, forest management, and carbon sequestration assessments. Traditional tools such as clinometers often face limitations due to terrain complexity, tree species variability, and operator dependency, while advanced technologies like LiDAR and UAVs, though precise, remain costly and less accessible. In this study, we developed a photographic tree height measurement method and integrated it into an Android application, referred to as M-Tree. The app allows users to capture tree images and calculate height using pixel-based markers, with the results synced to a global database containing tree height and associated data. To validate accuracy, M-Tree's measurements were compared to those obtained using a Suunto clinometer across 85 samples of trees and non-tree objects. Validation through Pearson correlation and Bland-Altman analyses demonstrated strong agreement, with root mean squared errors (RMSE) of 0.187 m for the clinometer and 0.192 m for M-Tree, alongside near-perfect correlations of 0.996 and 0.998, respectively. These results confirmed the M-Tree's effectiveness for tree height estimation, with a potential of broadening the geographic scope and accessibility of tree measurement data.
format Article
id doaj-art-856a8c7a4bf94131b8a00fedab335756
institution DOAJ
issn 2772-3755
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Smart Agricultural Technology
spelling doaj-art-856a8c7a4bf94131b8a00fedab3357562025-08-20T02:52:23ZengElsevierSmart Agricultural Technology2772-37552025-03-011010084610.1016/j.atech.2025.100846Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and dataMubarak Mahmud0Jianhong Lin1Mojtaba Houballah2Ibrahim Garba Buba3Laure Barthes4Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Société Evolution, 91190, Gif sur Yvette, France; Department of Forestry and Wildlife Management, Aliko Dangote University of Science and Technology, Wudil, Nigeria; Corresponding author.Université Paris-Saclay, CNRS, AgroParisTech, Ecologie Société Evolution, 91190, Gif sur Yvette, FranceUniversité Paris-Saclay, CNRS, AgroParisTech, Ecologie Société Evolution, 91190, Gif sur Yvette, France; Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Institut Pierre-Simon Laplace (IPSL), CEA/ CNRS/ UVSQ, Université Paris-Saclay, Gif-sur-Yvette, FranceSorbonne Université, CNRS, IMPMC, 4 Place Jussieu, Paris 75252, France; Department of Physics, Federal University Gashua, Gashua 671106, NigeriaUniversité Paris-Saclay, CNRS, AgroParisTech, Ecologie Société Evolution, 91190, Gif sur Yvette, FranceAccurate measurement of tree height is essential for ecological research, forest management, and carbon sequestration assessments. Traditional tools such as clinometers often face limitations due to terrain complexity, tree species variability, and operator dependency, while advanced technologies like LiDAR and UAVs, though precise, remain costly and less accessible. In this study, we developed a photographic tree height measurement method and integrated it into an Android application, referred to as M-Tree. The app allows users to capture tree images and calculate height using pixel-based markers, with the results synced to a global database containing tree height and associated data. To validate accuracy, M-Tree's measurements were compared to those obtained using a Suunto clinometer across 85 samples of trees and non-tree objects. Validation through Pearson correlation and Bland-Altman analyses demonstrated strong agreement, with root mean squared errors (RMSE) of 0.187 m for the clinometer and 0.192 m for M-Tree, alongside near-perfect correlations of 0.996 and 0.998, respectively. These results confirmed the M-Tree's effectiveness for tree height estimation, with a potential of broadening the geographic scope and accessibility of tree measurement data.http://www.sciencedirect.com/science/article/pii/S2772375525000796Tree heightDatabaseM-TreeSmartphoneApplicationTrees Outside Forests
spellingShingle Mubarak Mahmud
Jianhong Lin
Mojtaba Houballah
Ibrahim Garba Buba
Laure Barthes
Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data
Smart Agricultural Technology
Tree height
Database
M-Tree
Smartphone
Application
Trees Outside Forests
title Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data
title_full Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data
title_fullStr Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data
title_full_unstemmed Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data
title_short Development of mobile application for tree height measurement using geometric principle: Establishing global database of tree height and data
title_sort development of mobile application for tree height measurement using geometric principle establishing global database of tree height and data
topic Tree height
Database
M-Tree
Smartphone
Application
Trees Outside Forests
url http://www.sciencedirect.com/science/article/pii/S2772375525000796
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