Results 21 to 30 of about 1,026 (242)

Tree Species Traits Determine the Success of LiDAR-Based Crown Mapping in a Mixed Temperate Forest

Remote Sensing, 2020
The ability to automatically delineate individual tree crowns using remote sensing data opens the possibility to collect detailed tree information over large geographic regions.
Jack H. Hastings, Scott V. Ollinger, Andrew P. Ouimette, Rebecca Sanders-DeMott, Michael W. Palace, Mark J. Ducey, Franklin B. Sullivan, David Basler, David A. Orwig   +8 more
doaj   +1 more source

Tree Stem Detection and Crown Delineation in a Structurally Diverse Deciduous Forest Combining Leaf-On and Leaf-Off UAV-SfM Data

Remote Sensing, 2023
Accurate detection and delineation of individual trees and their crowns in dense forest environments are essential for forest management and ecological applications.
Steffen Dietenberger, Marlin M. Mueller, Felix Bachmann, Maximilian Nestler, Jonas Ziemer, Friederike Metz, Marius G. Heidenreich, Franziska Koebsch, Sören Hese, Clémence Dubois, Christian Thiel   +10 more
doaj   +1 more source

Individual tree crown delineation from high-resolution UAV images in broadleaf forest

Ecological Informatics, 2021
Unmanned aerial vehicles (UAVs) paired with a structure from motion (SfM) algorithm (UAV-SfM) can be used to derive canopy height models (CHMs) for individual tree crown delineation (ITCD). ITCD algorithms normally perform well in coniferous forests, but their capabilities in broadleaf or mixed forests are still challenging.
Miraki, Mojdeh, Sohrabi, Hormoz, Fatehi, Parviz, Kneubühler, Mathias   +3 more
openaire   +2 more sources

Individual Tree Crown Delineation Techniques for Vegetation Management in Power Line Corridor [PDF]

2008 Digital Image Computing: Techniques and Applications, 2008
Remotely sensed, high spatial resolution images have great potential in assisting vegetation management in power line corridor. With the wide use of object-based approaches in remote sensing image analysis, individual tree crown delineation becomes a key research focus to improve the accuracy of plant information extraction.
Li, Zhengrong, Hayward, Ross, Zhang, Jinglan, Liu, Yuee   +3 more
openaire   +2 more sources

A review of individual tree crown detection and delineation from optical remote sensing images

CoRR, 2023
Powered by the advances of optical remote sensing sensors, the production of very high spatial resolution multispectral images provides great potential for achieving cost-efficient and high-accuracy forest inventory and analysis in an automated way. Lots of studies that aim at providing an inventory to the level of each individual tree have generated a
Juepeng Zheng, Shuai Yuan 0005, Weijia Li, Haohuan Fu, Le Yu 0001   +4 more
openaire   +3 more sources

A New Individual Tree Species Recognition Method Based on a Convolutional Neural Network and High-Spatial Resolution Remote Sensing Imagery

Remote Sensing, 2021
Tree species surveys are crucial to forest resource management and can provide references for forest protection policy making. The traditional tree species survey in the field is labor-intensive and time-consuming, supporting the practical significance ...
Shijie Yan, Linhai Jing, Huan Wang
doaj   +1 more source

Individual Tree Crown Delineation and Species Classification in Urban Landscapes from Multi-Source Remote Sensing by Integrating SAM and Watershed Segmentation [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Urban trees enhance the urban environment through various ecosystem services. Individual tree delineation and species classification provide information on the location, structure, and species of each tree from remote sensing datasets, offering valuable ...
J. Yuan, C. Zhang, L. Liang, H. Zhang, Q. Ma   +4 more
doaj   +1 more source

Canopy Fuel Load Mapping of Mediterranean Pine Sites Based on Individual Tree-Crown Delineation [PDF]

Remote Sensing, 2013
This study presents an individual tree-crown-based approach for canopy fuel load estimation and mapping in two Mediterranean pine stands. Based on destructive sampling, an allometric equation was developed for the estimation of crown fuel weight considering only pine crown width, a tree characteristic that can be estimated from passive imagery.
Giorgos Mallinis, Ioannis D. Mitsopoulos, Panagiota Stournara, Petros Patias, Alexandros Dimitrakopoulos   +4 more
openaire   +4 more sources

Tree Crown Mapping in Managed Woodlands (Parklands) of Semi-Arid West Africa Using WorldView-2 Imagery and Geographic Object Based Image Analysis

Sensors, 2014
Detailed information on tree cover structure is critical for research and monitoring programs targeting African woodlands, including agroforestry parklands.
Martin Karlson, Heather Reese, Madelene Ostwald   +2 more
doaj   +1 more source

Tree Crown Detection and Delineation in a Temperate Deciduous Forest from UAV RGB Imagery Using Deep Learning Approaches: Effects of Spatial Resolution and Species Characteristics

Remote Sensing, 2023
The automatic detection of tree crowns and estimation of crown areas from remotely sensed information offer a quick approach for grasping the dynamics of forest ecosystems and are of great significance for both biodiversity and ecosystem conservation ...
Yi Gan, Quan Wang, Atsuhiro Iio
doaj   +1 more source