Results 1 to 10 of about 174 (99)
Treetop Detection in Mountainous Forests Using UAV Terrain Awareness Function
Unmanned aerial vehicles (UAVs) are becoming essential tools for surveying and monitoring forest ecosystems. However, most forests are found on steep slopes, where capturing individual tree characteristics might be compromised by the difference in ground
Orou Berme Herve Gonroudobou +4 more
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Normalized point clouds (NPCs) derived from unmanned aerial vehicle-light detection and ranging (UAV-LiDAR) data have been applied to extract relevant forest inventory information.
Kaisen Ma +6 more
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Assessment of Stem Volume on Plots Using Terrestrial Laser Scanner: A Precision Forestry Application [PDF]
Timber volume is an important asset, not only as an ecological component, but also as a key source of present and future revenues, which requires precise estimates. We used the Trimble TX8 survey-grade terrestrial laser scanner (TLS) to create a detailed
Dimitrios Panagiotidis +2 more
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Urban Treetop Detection and Tree-Height Estimation from Unmanned-Aerial-Vehicle Images
Individual tree detection for urban forests in subtropical environments remains a great challenge due to the various types of forest structures, high canopy closures, and the mixture of evergreen and deciduous broadleaved trees.
Hui Wu +10 more
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Urban trees are vital elements of outdoor scenes via mobile laser scanning (MLS), accurate individual trees detection from disordered, discrete, and high-density MLS is an important basis for the subsequent analysis of city management and planning ...
Xiaojuan Ning +5 more
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A STUDY OF USING FULLY CONVOLUTIONAL NETWORK FOR TREETOP DETECTION ON REMOTE SENSING DATA [PDF]
Individual tree detection and counting are critical for the forest inventory management. In almost all of these methods that based on remote sensing data, the treetop detection is the most important and essential part.
C. Xiao +5 more
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Accurate retrieval of tree structural attributes is essential for effective forest management and resource assessment. Airborne laser scanning (ALS) provides detailed three-dimensional data from a top-down perspective, enabling the analysis of forest ...
Qingjun Zhang +4 more
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An Integrated Method for Estimating Forest-Canopy Closure Based on UAV LiDAR Data
Forest-canopy closure (FCC) reflects the coverage of the forest tree canopy, which is one of the most important indicators of forest structure and a core parameter in forest resources investigation. In recent years, the rapid development of UAV LiDAR and
Ting Gao +5 more
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Delineation of individual tree crowns can provide valuable information for sustainable forest management and environmental protection. However, it is hard to find a reliable tree crown delineation method that can continually generate expected results in ...
Fei Tong +3 more
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Studying individual trees is a common way that scientists employ to study forests and estimate forest parameters. In this study, a graph-based approach was developed for detecting individual trees in a broadleaf, complex forest region based on UAV ...
Seyed Ali Ahmadi +4 more
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