Three-Dimensional Modeling of an Urban Park and Trees by Combined Airborne and Portable On-Ground Scanning LIDAR Remote Sensing

In this study, we confirmed the utility of airborne and portable on-ground scanning light detection and ranging (LIDARs) for three-dimensional visualization of an urban park and quantification of biophysical variables of trees in the park. The digital canopy height model (DCHM) and digital terrain m...

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Bibliographic Details
Published in:Environmental modeling & assessment 2008-11, Vol.13 (4), p.473-481
Main Authors: Omasa, K, Hosoi, F, Uenishi, T. M, Shimizu, Y, Akiyama, Y
Format: Article
Language:English
Subjects:
3-D graphics
Applications of Mathematics
Canopies
Composite remote sensing
Computer graphics
DTM
Earth and Environmental Science
Environment
FP-mode DEM
Global positioning systems
GPS
Lasers
Lidar
Math. Appl. in Environmental Science
Mathematical Modeling and Industrial Mathematics
Operations Research/Decision Theory
Parks & recreation areas
Q1
Remote sensing
Scanning LIDAR
Studies
Three dimensional imaging
Three-dimensional modeling
Tree measurement
Trees
Urban areas
Urban park
Visual assessment
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Summary:In this study, we confirmed the utility of airborne and portable on-ground scanning light detection and ranging (LIDARs) for three-dimensional visualization of an urban park and quantification of biophysical variables of trees in the park. The digital canopy height model (DCHM) and digital terrain model generated from airborne scanning LIDAR data provided precise images of the ground surface and individual tree canopies. The heights of 166 coniferous and broadleaf trees of 11 species in the park were estimated from the DCHM images with slight underestimation (mean error = -0.14 m, RMSE = 0.30 m). Portable on-ground scanning LIDAR provided images of individual trees with detailed features. Tree height and trunk diameter were estimated to be within 0.31 m and 1 cm, respectively, from the on-ground LIDAR images. We combined airborne and on-ground LIDAR images to overcome blind regions and created a complete three-dimensional model of three standing trees. The model allowed not only visual assessment from all viewpoints but also quantitative estimation of canopy volume, trunk volume, and canopy cross-sectional area.
ISSN:1420-2026
1573-2967
DOI:10.1007/s10666-007-9115-5