The properties of terrestrial laser system intensity for measuring leaf geometries : a case study with conference pear trees (Pyrus Communis)

M.A.F. Balduzzi, D. Zande, van der, J. Stuckens, W.W. Verstraeten, P. Coppin

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

34 Citaten (Scopus)
113 Downloads (Pure)

Samenvatting

Light Detection and Ranging (LiDAR) technology can be a valuable tool for describing and quantifying vegetation structure. However, because of their size, extraction of leaf geometries remains complicated. In this study, the intensity data produced by the Terrestrial Laser System (TLS) FARO LS880 is corrected for the distance effect and its relationship with the angle of incidence between the laser beam and the surface of the leaf of a Conference Pear tree (Pyrus Commmunis) is established. The results demonstrate that with only intensity, this relationship has a potential for determining the angle of incidence with the leaves surface with a precision of ±5° for an angle of incidence smaller than 60°, whereas it is more variable for an angle of incidence larger than 60°. It appears that TLS beam footprint, leaf curvatures and leaf wrinkles have an impact on the relationship between intensity and angle of incidence, though, this analysis shows that the intensity of scanned leaves has a potential to eliminate ghost points and to improve their meshing.
Originele taal-2Engels
Pagina's (van-tot)1657-1681
Aantal pagina's25
TijdschriftSensors
Volume11
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - 2011

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