Article (Scientific journals)
Forest Inventory with Terrestrial LiDAR: A Comparison of Static and Hand-Held Mobile Laser Scanning
Bauwens, Sébastien; Bartholomeus, Harm; Calders, Kim et al.
2016In Forests, 7 (6), p. 127
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Keywords :
forestry; terrestrial laser scanning; hand-held mobile laser scanning; HMLS; TLS; SLAM; digital elevation model; stem mapping
Abstract :
[en] The application of static terrestrial laser scanning (TLS) in forest inventories is becoming more effective. Nevertheless, the occlusion effect is still limiting the processing efficiency to extract forest attributes. The use of a mobile laser scanner (MLS) would reduce this occlusion. In this study, we assessed and compared a hand-held mobile laser scanner (HMLS) with two TLS approaches (single scan: SS, and multi scan: MS) for the estimation of several forest parameters in a wide range of forest types and structures. We found that SS is competitive to extract the ground surface of forest plots, while MS gives the best result to describe the upper part of the canopy. The whole cross-section at 1.3 m height is scanned for 91% of the trees (DBH > 10 cm) with the HMLS leading to the best results for DBH estimates (bias of 0.08 cm and RMSE of 1.11 cm), compared to no fully-scanned trees for SS and 42% fully-scanned trees for MS. Irregularities, such as bark roughness and non-circular cross-section may explain the negative bias encountered for all of the scanning approaches. The success of using MLS in forests will allow for 3D structure acquisition on a larger scale and in a time-efficient manner.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Bauwens, Sébastien  ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels
Bartholomeus, Harm;  Wageningen University > Laboratory of Geo-information Science and Remote Sensing
Calders, Kim;  National Physical Laboratory > Climate and Optical Group > Earth Observations
Lejeune, Philippe ;  Université de Liège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels
Language :
English
Title :
Forest Inventory with Terrestrial LiDAR: A Comparison of Static and Hand-Held Mobile Laser Scanning
Alternative titles :
[fr] Inventaire forestier à partir de LiDAR terrestre: une comparaison d'un scanner LiDAR statique avec un mobile portable à main
Publication date :
21 June 2016
Journal title :
Forests
ISSN :
1999-4907
Publisher :
MDPI, Basel, Switzerland
Special issue title :
Forest Ground Observations through Terrestrial Point Clouds
Volume :
7
Issue :
6
Pages :
127
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
DynaFfor, PreREDD+
Available on ORBi :
since 21 June 2016

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