Results 41 to 50 of about 16,908 (163)
Repeated Airborne Laser Scanning for Analyzing Drought-Related Crown Dynamics in Mature Norway spruce [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesRepeated airborne laser scanning (ALS) offers new opportunities to quantify individual-tree structural dynamics over time. In this study, we analysed annual to multi-year changes in height growth and crown structure of mature Norway spruce in southern ...
A. Penanhoat, L. Huo
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Remote Sensing, 2017 In recent years, airborne Light Detection and Ranging (LiDAR) that provided three-dimensional forest information has been widely applied in forest inventory and has shown great potential in automatic individual tree crown delineation (ITCD).
Yinghui Zhao +3 more
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Remote Sensing, 2020 Tropical rainforests comprise complex 3D structures and encompass heterogeneous site conditions; their transpiration contributes to climate regulation. The objectives of our study were to test the relationship between tree water use and crown metrics and
Joyson Ahongshangbam +4 more
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Sensors, 2015 Topography affects forest canopy height retrieval based on airborne Light Detection and Ranging (LiDAR) data a lot. This paper proposes a method for correcting deviations caused by topography based on individual tree crown segmentation.
Zhugeng Duan +5 more
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CoRR, 2019 This work presents a method for semantic segmentation of mango trees in high resolution aerial imagery, and, a novel method for individual crown detection of mango trees using segmentation output. Mango Tree Net, a fully convolutional neural network (FCN), is trained using supervised learning to perform semantic segmentation of mango trees in imagery ...
Vikas Agaradahalli Gurumurthy +2 more
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ANALYSIS OF MULTITEMPORAL AERIAL IMAGES FOR FENYŐFŐ FOREST CHANGE DETECTION
Acta Geographica Debrecina. Landscape & Environment Series, 2016 This study evaluated the use of 40 cm spatial resolution aerial images for individual tree crown delineation, forest type classification, health estimation and clear-cut area detection in Fenyőfő forest reserves in 2012 and 2015 years.
SHUKHRAT SHOKIROV, GÉZA KIRÁLY
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Individual Tree Crown Methods for 3D Data from Remote Sensing [PDF]
Current Forestry Reports, 2017 The rapid development of remote sensing technology has made dense 3D data available from airborne laser scanning and recently also photogrammetric point clouds. This paper reviews methods for extraction of individual trees from 3D data and their applications in forestry and ecology.
Lindberg, Eva, Holmgren, Johan
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Forest Systems, 2016 Aim of study: The study aims to analyse the potential use of low‑cost unmanned aerial vehicle (UAV) imagery for the estimation of Pinus pinea L. variables at the individual tree level (position, tree height and crown diameter).
Juan Guerra Hernandez +8 more
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Analysing individual 3D tree structure using the R package ITSMe
Methods in Ecology and Evolution, 2023 Detailed 3D quantification of tree structure plays a crucial role in understanding tree‐ and plot‐level biophysical processes. Light detection and ranging (LiDAR) has led to a revolution in tree structural measurements and its 3D data are increasingly ...
Louise Terryn +8 more
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Remote SensingIndividual tree structure and wood density are important indicators of forest quality and key parameters for biomass calculation. To explore the extraction accuracy of individual tree structure parameters based on LiDAR technology, as well as the ...
Ting Li, Xin Shen, Kai Zhou, Lin Cao
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