论文信息 - LIDAR POINT CLOUD BASED FULLY AUTOMATIC 3 D SINGL TREE MODELLING IN FOREST AND EVALUATIONS OF THE PROCEDURE

LIDAR POINT CLOUD BASED FULLY AUTOMATIC 3 D SINGL TREE MODELLING IN FOREST AND EVALUATIONS OF THE PROCEDURE

A whole procedure of fully automatic 3D single tree modelling based on LIDAR point cloud is introduced in the paper. The evaluation of the procedure is then delivered by verifying the modelling results with field collecting data in sample plots. With the procedure, individual trees are extracted not only from the top canopy layer but also from the sub canopy layer, 3D shape of the extracted individual tree crowns are reconstructed, from which important parameters such as crown height range, crown volume and crown contours at different height levels can be derived. For the evaluation of the performance, the procedure is implemented with LIDAR data of 25 sample plots where detailed field inventories have been accomplished. Results of the procedure such as the number of individual trees in each sample plot, the location of the detected individual trees are verified by a statistical comparison with the field collecting data. Further analysis on the evaluation results is delivered at the final.

Y. Wanga | Holger Weinackera | B.R. Kocha | K. Stere

[1] Hannu Hyyppä,et al. Reconstructing tree crowns from laser scanner data for feature extraction , 2002 .

[2] Åsa Persson,et al. Detecting and measuring individual trees using an airborne laser scanner , 2002 .

[3] B. Koch,et al. TREESVIS-A SOFTWARE SYSTEM FOR SIMULTANEOUS 3 D-REAL-TIME VISUALISATION OF DTM , DSM , LASER RAW DATA , MULTISPECTRAL DATA , SIMPLE TREE AND BUILDING MODELS , 2004 .

[4] J. Hyyppä,et al. DETECTING AND ESTIMATING ATTRIBUTES FOR SINGLE TREES USING LASER SCANNER , 2006 .

[5] B. Koch,et al. Detection of individual tree crowns in airborne lidar data , 2006 .

[6] Barbara Koch,et al. DEVELOPMENT OF A PROCEDURE FOR VERTICAL STRUCTURE ANALYSIS AND 3D-SINGLE TREE EXTRACTION WITHIN FORESTS BASED ON LIDAR POINT CLOUD , 2007 .

[7] J. Reitberger,et al. COMBINED TREE SEGMENTATION AND STEM DETECTION USING FULL WAVEFORM LIDAR DATA , 2007 .