Results 31 to 40 of about 16,908 (163)
Remote Sensing, 2020 Information for individual trees (e.g., position, treetop, height, crown width, and crown edge) is beneficial for forest monitoring and management.
Wei Chen, Haibing Xiang, Kazuyuki Moriya
doaj +1 more source
Individual Tree Crown Modeling and Change Detection From Airborne Lidar Data
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016 Light detection and ranging (lidar) provides a promising way of detecting changes of trees in three-dimensional (3-D) because laser beams can penetrate through the foliage and therefore provide full coverage of trees. The aim is to detect changes in trees in urban areas using multitemporal airborne lidar point clouds.
Wen Xiao +3 more
openaire +4 more sources
Remote Sensing, 2021 Owing to the complex forest structure and large variation in crown size, individual tree detection in subtropical mixed broadleaf forests in urban scenes is a great challenge.
Wenbing Xu +3 more
doaj +1 more source
Tree-Species Classification in Subtropical Forests Using Airborne Hyperspectral and LiDAR Data
Remote Sensing, 2017 Accurate classification of tree-species is essential for sustainably managing forest resources and effectively monitoring species diversity. In this study, we used simultaneously acquired hyperspectral and LiDAR data from LiCHy (Hyperspectral, LiDAR and ...
Xin Shen, Lin Cao
doaj +1 more source
Semi-supervised SVM for individual tree crown species classification
ISPRS Journal of Photogrammetry and Remote Sensing, 2015 In this paper a novel semi-supervised SVM classifier is presented, specifically developed for tree species classification at individual tree crown (ITC) level. In ITC tree species classification, all the pixels belonging to an ITC should have the same label.
Michele Dalponte +4 more
openaire +4 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 +3 more
openaire +2 more sources
Fine-grained individual tree crown segmentation based on high-resolution images [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe canopy of trees plays an important role in the ecological system of forest. Its cover, distribution, structure are highly relevant to the function of water cycling, carbon storage, and climate modulating of forest.
Y. Wang, X. Dou, X. Liang
doaj +1 more source
ACCURACY ASSESSMENT OF CROWN DELINEATION METHODS FOR THE INDIVIDUAL TREES USING LIDAR DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Forest canopy density and height are used as variables in a number of environmental applications, including the estimation of biomass, forest extent and condition, and biodiversity.
K. T. Chang +3 more
doaj +1 more source
Sensors, 2008 A procedure for both vertical canopy structure analysis and 3D single tree modelling based on Lidar point cloud is presented in this paper. The whole area of research is segmented into small study cells by a raster net.
Barbara Koch +2 more
doaj
Annals of Forest ScienceKey message This paper provides individual tree models to estimate crown variables in maritime pine (Pinus pinaster Aiton.). The estimation of crown variables, especially height to the base of the crown and crown length, is essential for forest fire ...
Muha Abdullah Al Pavel +2 more
doaj +1 more source