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    Título
    Comparing Terrestrial Laser Scanning (TLS) and Wearable Laser Scanning (WLS) for Individual Tree Modeling at Plot Level
    Autor
    Cabo, Carlos
    Del pozo, Susana
    Rodríguez-Gonzálvez, Pablo
    Ordóñez, Celestino
    González-Aguilera, Diego
    Facultad/Centro
    Escuela Superior y Tecnica de Ingenieros de Minas
    Área de conocimiento
    Ingeniería Cartografica, Geodesica y Fotogrametria
    Datos de la obra
    Remote Sensing 2018, 10, 540
    Editor
    MDPI
    Fecha
    2018-04-01
    Descripción física
    54 p.
    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
    Materia
    Cartografía
    Palabras clave
    Forest inventory
    Tree modeling
    Laser scanning
    Mobile mapping
    Dendrometric variables
    Idioma
    eng
    Tipo documental
    info:eu-repo/semantics/article
    Peer review
    SI
    URI
    http://hdl.handle.net/10612/9243
    Collections
    • Artículos de revista (post-print) [2096]
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