scholarly journals New Hybrid Algorithms for Estimating Tree Stem Diameters at Breast Height Using a Two Dimensional Terrestrial Laser Scanner

Sensors ◽  
2015 ◽  
Vol 15 (7) ◽  
pp. 15661-15683 ◽  
Author(s):  
Jianlei Kong ◽  
Xiaokang Ding ◽  
Jinhao Liu ◽  
Lei Yan ◽  
Jianli Wang
Keyword(s):  
Laser Scanner ◽  
Hybrid Algorithms ◽  
Terrestrial Laser Scanner ◽  
Two Dimensional ◽  
Breast Height ◽  
Tree Stem

scholarly journals Tree stems from terrestrial laser scanner measurements

2015 ◽  
Vol 63 (1) ◽  
pp. 44-55 ◽  
Author(s):  
Andres Kuusk ◽  
Mait Lang ◽  
Silja Märdla ◽  
Jan Pisek
Keyword(s):  
Point Cloud ◽  
Laser Scanner ◽  
Terrestrial Laser Scanner ◽  
Breast Height ◽  
Tree Layer ◽  
Second Growth ◽  
Spruce Stands ◽  
Dense Grid ◽  
Growth Limits ◽  
Tree Stem

Abstract Terrestrial laser scanner (TLS) measurements were carried out in mature birch, pine, and spruce stands in Järvselja, Estonia. The structure of stands has been previously studied. A simple special clustering procedure is developed for automatic detection of stem positions and estimation of tree stem dimensions from the TLS point cloud. Tree stem diameter at breast height (DBH), vertical profile of stem and size distribution of DBH is estimated with high precision in the pine stand where the second growth tree layer is almost missing. The presence of second growth limits estimating stem dimensions accurately in the birch stand, and the procedure fails in the dense spruce stand of rich undergrowth and low dead branches. In such stands the TLS measurements should be done in dense grid with short-range sounding setup only. The developed procedure is undemanding for computers and can be applied on simple PC-s.

scholarly journals Interactive Trunk Extraction from Forest Point Cloud

2014 ◽  
Vol XL-5 ◽  
pp. 433-436
Author(s):  
T. Mizoguchi ◽  
Y. Kobayashi
Keyword(s):  
Forest Management ◽  
Point Cloud ◽  
Laser Scanner ◽  
Interactive System ◽  
Terrestrial Laser Scanner ◽  
Diameter At Breast Height ◽  
Breast Height

For forest management or monitoring, it is required to constantly measure several parameters of each tree, such as height, diameter at breast height, and trunk volume. Terrestrial laser scanner has been used for this purpose instead of human workers to reduce time and cost for the measurement. In order to use point cloud captured by terrestrial laser scanner in the above applications, it is an important step to extract all trees or their trunks separately. For this purpose, we propose an interactive system in which a user can intuitively and efficiently extract each trunk by a simple editing on the distance image created from the point cloud. We demonstrate the effectiveness of our proposed system from various experiments.

scholarly journals Automated low-cost terrestrial laser scanner for measuring diameters at breast height and heights of plantation trees

PLoS ONE ◽  
2019 ◽  
Vol 14 (1) ◽  
pp. e0209888 ◽  
Author(s):  
Pei Wang ◽  
Ronghao Li ◽  
Guochao Bu ◽  
Rui Zhao
Keyword(s):  
Low Cost ◽  
Laser Scanner ◽  
Terrestrial Laser Scanner ◽  
Breast Height

Reconstruction of 3D tree stem models from low-cost terrestrial laser scanner data

2013 ◽  
Author(s):  
Dave Kelbe ◽  
Paul Romanczyk ◽  
Jan van Aardt ◽  
Kerry Cawse-Nicholson
Keyword(s):  
Low Cost ◽  
Laser Scanner ◽  
Terrestrial Laser Scanner ◽  
Scanner Data ◽  
Tree Stem

Individual Tree Parameters Estimation from Terrestrial Laser Scanner Data

2017 ◽  
Author(s):  
Darius Popovas ◽  
Valentas Mikalauskas ◽  
Dominykas Šlikas ◽  
Simonas Valotka ◽  
Tautvydas Šorys
Keyword(s):  
Forest Management ◽  
Laser Scanner ◽  
Tree Height ◽  
Parameters Estimation ◽  
Carbon Accounting ◽  
Terrestrial Laser Scanner ◽  
Individual Tree ◽  
Diameter At Breast Height ◽  
Crown Diameter ◽  
Breast Height

Tree models and information on the various characteristics of trees and forests are required for forest management, city models, carbon accounting and the management of assets. In order to get precise characteristics and information, tree modelling must be done at individual tree level as it represents the interaction process between trees. For sustainable forest management, more information is needed, however, the traditional methods of investigating forest parameters such as, tree height, diameter at breast height, crown diameter, stem curve and stem mapping or tree location are complex and labour-intensive. Light detection and ranging (LiDAR) has been proposed as a suitable technique for mapping of forest biomass. LiDAR can be operated in airborne configuration (Airborne laser scanning) or in a terrestrial setup. Terrestrial Laser Scanner measures forests from below canopy and offers a much more detailed description of the individual trees. The aim of this study is to derive the essential tree parameters for estimation of biomass from terrestrial LiDAR data. Tree height, diameter at breast height, crown diameter, stem curve and tree locations were extracted from Terrestrial Laser Scanner point clouds.

INVESTIGATIONS OF THE BALTIC SEA COASTAL ZONE ABOVE-WATER PART TOPOGRAPHY DYNAMICS BY MEANS OF TERRESTRIAL LASER SCANNER (SVETLOGORSK CITY, KALININGRAD REGION)

2017 ◽  
Author(s):  
Nikolay Lugovoy ◽  
Nikolay Lugovoy ◽  
Askar Ilyasov ◽  
Askar Ilyasov ◽  
Elena Pronina ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Coastal Zone ◽  
Coastal Erosion ◽  
Laser Scanner ◽  
Terrestrial Laser Scanner ◽  
The Baltic Sea ◽  
Coastal Dynamics ◽  
Kaliningrad Region ◽  
The Baltic

The paper describes application of the terrestrial laser scanner for investigation of coastal dynamics of the Svetlogorskaya Bay, Baltic Sea. Methods of investigation and results of surveys repeated over the two consecutive years for quantification of coastal erosion and slope processes within the coastal zone are presented.

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