PTrees: A point-based approach to forest tree extraction from lidar data - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue International Journal of Applied Earth Observation and Geoinformation Année : 2014

PTrees: A point-based approach to forest tree extraction from lidar data

Résumé

This paper introduces PTrees, a multi-scale dynamic point cloud segmentation dedicated to forest tree extraction from lidar point clouds. The method process the point data using the raw elevation values (Z) and compute height (H = Z − ground elevation) during post-processing using an innovative procedure allowing to preserve the geometry of crown points. Multiple segmentations are done at different scales. Segmentation criteria are then applied to dynamically select the best set of apices from the tree segments extracted at the various scales. The selected set of apices is then used to generate a final segmentation. PTrees has been tested in 3 different forest types, allowing to detect 82% of the trees with under 10% of false detection rate. Future development will integrate crown profile estimation during the segmentation process in order to both maximize the detection of suppressed trees and minimize false detections.
Fichier non déposé

Dates et versions

hal-02601174 , version 1 (16-05-2020)

Identifiants

Citer

C. Vega, A. Hamrouni, S. El Mokhtari, J. Morel, J. Bock, et al.. PTrees: A point-based approach to forest tree extraction from lidar data. International Journal of Applied Earth Observation and Geoinformation, 2014, pp.98-108. ⟨10.1016/j.jag.2014.05.001⟩. ⟨hal-02601174⟩
158 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More