Measurement of DBH and row spacing of street trees based on mobile LiDAR
ZHANG Wei-zheng
LIU Xiao-yan
WANG Guo-fei
ZHANG Huan-long
ZHANG Wei-wei
CHEN Qi-qiang
DONG Shou-yin
Abstract：Points cloud of street trees were obtained by vehicle LiDAR.The existing hierarchical projection algorithm was combined with heuristic knowledge of object characteristics to achieve the points cloud extraction of each tree.Fitting circle by least squares,the diameter at breast height(DBH) and row spacing of street trees were measured by Matlab programming.The experimental results showed that the root mean square(RMS) error of DBH and row spacing of LiDAR-based measurement and manual measurement were 0.008 7 m and 0.010 3 m,the correlation coefficients were 0.968 2 and 0.999 6.The proposed method had high precision and wide measuring range and provided quality data for the detection of distribution and growth state of street trees.
Keywords：mobile LiDARstreet treesdiameter at breast height (DBH)row spacingmeasurement and metrology
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 78-84 )