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Detailed reconstruction of trees from terrestrial laser scans for remote sensing and radiative transfer modelling applications
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SYSNO ASEP 0547195 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Detailed reconstruction of trees from terrestrial laser scans for remote sensing and radiative transfer modelling applications Author(s) Janoutová, Růžena (UEK-B) RID, ORCID, SAI
Homolová, Lucie (UEK-B) RID, ORCID, SAI
Novotný, Jan (UEK-B) RID, SAI, ORCID
Navrátilová, Barbora (UEK-B) SAI, RID
Pikl, Miroslav (UEK-B) RID, SAI
Malenovský, Z. (CZ)Number of authors 6 Source Title in silico Plants. - : Oxford University Press - ISSN 2517-5025
Roč. 3, č. 2 (2021)Number of pages 21 s. Language eng - English Country GB - United Kingdom Keywords 3d tree reconstruction ; influence of 3d forest structure ; radiative transfer modelling ; remote sensing Subject RIV GK - Forestry OECD category Remote sensing R&D Projects LM2018123 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LTC20055 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure CzeCOS III - 90123 - Ústav výzkumu globální změny AV ČR, v. v. i. Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000745293200009 EID SCOPUS 85119480980 DOI 10.1093/insilicoplants/diab026 Annotation This study presents a method for three-dimensional (3D) reconstruction of forest tree species that are, for instance, required for simulations of 3D canopies in radiative transfer modelling. We selected three forest species of different architecture: Norway spruce (Picea abies) and European beech (Fagus sylvatica), representatives of European production forests, and white peppermint (Eucalyptus pulchella), a common forest species of Tasmania. Each species has a specific crown structure and foliage distribution. Our algorithm for 3D model construction of a single tree is based on terrestrial laser scanning (TLS) and ancillary field measurements of leaf angle distribution, percentage of current-year and older leaves, and other parameters that could not be derived from TLS data. The algorithm comprises four main steps: (i) segmentation of a TLS tree point cloud separating wooden parts from foliage, (ii) reconstruction of wooden parts (trunks and branches) from TLS data, (iii) biologically genuine distribution of foliage within the tree crown and (iv) separation of foliage into two age categories (for spruce trees only). The reconstructed 3D models of the tree species were used to build virtual forest scenes in the Discrete Anisotropic Radiative Transfer model and to simulate canopy optical signals, specifically: angularly anisotropic top-of-canopy reflectance (for retrieval of leaf biochemical compounds from nadir canopy reflectance signatures captured in airborne imaging spectroscopy data) and solar-induced chlorophyll fluorescence signal (for experimentally unfeasible sensitivity analyses). Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2022 Electronic address https://academic.oup.com/insilicoplants/article/3/2/diab026/6358408
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