Paper Info
Title
Comparing Terrestrial Laser Scanning (TLS) and Wearable Laser Scanning (WLS) for Individual Tree Modeling at Plot Level.
Abstract
This study presents a comparison between the use of wearable laser scanning (WLS) and terrestrial laser scanning (TLS) devices for automatic tree detection with an estimation of two dendrometric variables: diameter at breast height (DBH) and total tree height (TH). Operative processes for data collection and automatic forest inventory are described in detail. The approach used is based on the clustering of points belonging to each individual tree, the isolation of the trunks, the iterative fitting of circles for the DBH calculation and the computation of the TH of each tree. TLS and WLS point clouds were compared by the statistical analysis of both estimated forest dendrometric parameters and the possible presence of bias. Results show that the apparent differences in point density and relative precision between both 3D forest models do not affect tree detection and DBH estimation. Nevertheless, tree height estimation using WLS appears to be affected by the limited scanning range of the WLS used in this study. TH estimations for trees below a certain height are equivalent using WLS or TLS, whereas TH of taller trees is clearly underestimated using WLS.
Year
DOI
Venue
2018
10.3390/rs10040540
REMOTE SENSING
Keywords
Field
DocType
forest inventory,tree modeling,laser scanning,backpack,handheld,mobile mapping,dendrometric variables
Laser scanning,Forest inventory,Remote sensing,Diameter at breast height,Tree modeling,Point cloud,Cluster analysis,Geology,Terrestrial laser scanning,Mobile mapping
Journal
Volume
Issue
ISSN
10
4
2072-4292
Citations 
PageRank 
References 
3
0.41
10
Authors
5
Name
Order
Citations
PageRank
Carlos Cabo1152.04
Susana Del Pozo230.41
Pablo Rodríguez-Gonzálvez3264.09
Celestino Ordóñez4519.18
Diego González-Aguilera58119.41