13 May 2016 Simulated full-waveform lidar compared to Riegl VZ-400 terrestrial laser scans
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Abstract
A 3-D Monte Carlo ray-tracing simulation of LiDAR propagation models the reflection, transmission and ab- sorption interactions of laser energy with materials in a simulated scene. In this presentation, a model scene consisting of a single Victorian Boxwood (Pittosporum undulatum) tree is generated by the high-fidelity tree voxel model VoxLAD using high-spatial resolution point cloud data from a Riegl VZ-400 terrestrial laser scanner. The VoxLAD model uses terrestrial LiDAR scanner data to determine Leaf Area Density (LAD) measurements for small volume voxels (20 cm sides) of a single tree canopy. VoxLAD is also used in a non-traditional fashion in this case to generate a voxel model of wood density. Information from the VoxLAD model is used within the LiDAR simulation to determine the probability of LiDAR energy interacting with materials at a given voxel location. The LiDAR simulation is defined to replicate the scanning arrangement of the Riegl VZ-400; the resulting simulated full-waveform LiDAR signals compare favorably to those obtained with the Riegl VZ-400 terrestrial laser scanner.
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Angela M. Kim, Richard C. Olsen, Martin Béland, "Simulated full-waveform lidar compared to Riegl VZ-400 terrestrial laser scans", Proc. SPIE 9832, Laser Radar Technology and Applications XXI, 98320T (13 May 2016); doi: 10.1117/12.2223929; https://doi.org/10.1117/12.2223929
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