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An Algorithm for Tree Modelling and Stem Perimeter Estimation Based on the Photogrammetric Point Cloud

Luka Jurjević   ORCID icon orcid.org/0000-0001-6411-6692 ; Croatian Forest Research Institute, Jastrebarsko, Croatia
Mateo Gašparović   ORCID icon orcid.org/0000-0003-2345-7882 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Robert Župan   ORCID icon orcid.org/0000-0001-7882-1173 ; Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Hrvoje Marjanović ; Croatian Forest Research Institute, Jastrebarsko, Croatia
Ivan Balenović ; Croatian Forest Research Institute, Jastrebarsko, Croatia

Puni tekst: hrvatski, pdf (3 MB) str. 181-196 preuzimanja: 206* citiraj
APA 6th Edition
Jurjević, L., Gašparović, M., Župan, R., Marjanović, H. i Balenović, I. (2018). Algoritam za modeliranje i procjenu opsega debla na temelju fotogrametrijskog oblaka točaka. Geodetski list, 72 (95) (3), 181-196. Preuzeto s https://hrcak.srce.hr/209071
MLA 8th Edition
Jurjević, Luka, et al. "Algoritam za modeliranje i procjenu opsega debla na temelju fotogrametrijskog oblaka točaka." Geodetski list, vol. 72 (95), br. 3, 2018, str. 181-196. https://hrcak.srce.hr/209071. Citirano 28.11.2020.
Chicago 17th Edition
Jurjević, Luka, Mateo Gašparović, Robert Župan, Hrvoje Marjanović i Ivan Balenović. "Algoritam za modeliranje i procjenu opsega debla na temelju fotogrametrijskog oblaka točaka." Geodetski list 72 (95), br. 3 (2018): 181-196. https://hrcak.srce.hr/209071
Harvard
Jurjević, L., et al. (2018). 'Algoritam za modeliranje i procjenu opsega debla na temelju fotogrametrijskog oblaka točaka', Geodetski list, 72 (95)(3), str. 181-196. Preuzeto s: https://hrcak.srce.hr/209071 (Datum pristupa: 28.11.2020.)
Vancouver
Jurjević L, Gašparović M, Župan R, Marjanović H, Balenović I. Algoritam za modeliranje i procjenu opsega debla na temelju fotogrametrijskog oblaka točaka. Geodetski list [Internet]. 2018 [pristupljeno 28.11.2020.];72 (95)(3):181-196. Dostupno na: https://hrcak.srce.hr/209071
IEEE
L. Jurjević, M. Gašparović, R. Župan, H. Marjanović i I. Balenović, "Algoritam za modeliranje i procjenu opsega debla na temelju fotogrametrijskog oblaka točaka", Geodetski list, vol.72 (95), br. 3, str. 181-196, 2018. [Online]. Dostupno na: https://hrcak.srce.hr/209071. [Citirano: 28.11.2020.]

Sažetak
Diameter at the breast height is one of the most important parameters used in the forestry. In practice, field measurement of the test plots is an intensive and time-consuming process that requires specialized equipment. Recently, the application of terrestrial laser scanner and photogrammetry in forestry, are being investigated as a fast and effective approach to forest plot measurement. In this paper, we present the algorithm for modelling and tree stem perimeter extraction based on the RANSAC (RANdom Sample Consensus) algorithm and PCA (Principle Component Analysis). The accuracy of the tree perimeters extraction is tested on the three tree models differing on the reconstruction type (self-calibration, self-calibration with initial parameters and self-calibration without initial parameters). The smallest error is acquired by estimating perimeters on the model reconstructed with the precalibrated camera (RMSE=1.23 cm), self-calibration with initial parameters (RMSE=1.35 cm) and self-calibration (RMSE=1.63 cm) follow. The presented algorithm indicates the great potential of photogrammetric methods application in tree perimeter estimation, with some changes in the approach.

Ključne riječi
terrestrial photogrammetry; point cloud; RANSAC; PCA

Hrčak ID: 209071

URI
https://hrcak.srce.hr/209071

[hrvatski]

Posjeta: 389 *