Results 61 to 70 of about 29,125 (157)

Segmentation and classification of individual tree crowns [PDF]

, 2004
By segmentation and classification of individual tree crowns in high spatial resolution aerial images, information about the forest can be automatically extracted. Segmentation is about finding the individual tree crowns and giving each of them a unique label. Classification, on the other hand, is about recognising the species of the tree.
openaire  

A Multitask 3-D Deep Learning Framework for Tree Point Cloud Segmentation and Parameter Retrieval

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In applications such as automated forest inventory, large-scale forest scene analysis and reconstruction, efficiently and accurately resolving tree geometry and structural features from vast three-dimensional (3-D) point cloud data is a core requirement.
Yijun Zhong, Shuai Liu, Hua Sun
doaj   +1 more source

Robust Individual Tree Parameter Estimation in Cold–Temperate Secondary Forests Using ULS–HLS Data and the RSQ-Tree Framework

Remote Sensing
Accurate quantification of individual-tree parameters is essential for improving the quality of natural secondary forests; however, conventional measurements remain challenging because of canopy overlap and interference from tall shrubs.
Yutong Liu, Chengxing Ling, Hua Liu, Guanjun Lian, Xia Liu, Feng Zhao, Shiyu Zhao   +6 more
doaj   +1 more source

Fine-grained individual tree crown segmentation based on high-resolution images [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The 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

Individual tree segmentation of airborne and UAV LiDAR point clouds based on the watershed and optimized connection center evolution clustering. [PDF]

Ecol Evol, 2023
Li Y, Xie D, Wang Y, Jin S, Zhou K, Zhang Z, Li W, Zhang W, Mu X, Yan G.   +9 more
europepmc   +1 more source

Selecting the Optimal Approach for Individual Tree Segmentation in Euphrates Poplar Desert Riparian Forest Using Terrestrial Laser Scanning

Remote Sensing
Individual tree segmentation (ITS) is essential for forest inventory, health assessment, carbon accounting, and evaluating restoration efforts. Populus euphratica, a widely distributed desert riparian tree species found along the inland rivers of Central
Asadilla Yusup, Xiaomei Hu, Ümüt Halik, Abdulla Abliz, Maierdang Keyimu, Shengli Tao   +5 more
doaj   +1 more source

Synergizing a Deep Learning and Enhanced Graph-Partitioning Algorithm for Accurate Individual Rubber Tree-Crown Segmentation from Unmanned Aerial Vehicle Light-Detection and Ranging Data

Remote Sensing
The precise acquisition of phenotypic parameters for individual trees in plantation forests is important for forest management and resource exploration.
Yunfeng Zhu, Yuxuan Lin, Bangqian Chen, Ting Yun, Xiangjun Wang   +4 more
doaj   +1 more source

Point Cloud Data Mining With HD Map Priors for Making Synthetic Forest Datasets

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Airbornelaser scanning has proven to be an indispensable tool in surveying outdoor areas due to its efficient land coverage and unimpeded access to difficult-to-reach areas. The spatial information in 3-D point clouds, the data produced in airborne laser
Kasparas Karlauskas, Julius Gelsvartas, Povilas Treigys   +2 more
doaj   +1 more source

A Multi-Threshold Segmentation for Tree-Level Parameter Extraction in a Deciduous Forest Using Small-Footprint Airborne LiDAR Data

Remote Sensing, 2019
The development of new approaches to tree-level parameter extraction for forest resource inventory and management is an important area of ongoing research, which puts forward high requirements for the capabilities of single-tree segmentation and ...
Xiao-Hu Wang, Yi-Zhuo Zhang, Miao-Miao Xu   +2 more
doaj   +1 more source

Segmentation of individual mangrove trees using UAV-based LiDAR data

Ecological Informatics, 2023
Haotian You, Yao Liu, Peng Lei, Zhigang Qin, Qixu You   +4 more
openaire   +2 more sources