High-resolution 3D laser imaging of various surfaces in minefields and implications for surface modeling

Sam S. Jackson; Michael J. Bishop; David L. Leese; Elizabeth M. Lord

doi:10.1117/12.602479

10 June 2005 High-resolution 3D laser imaging of various surfaces in minefields and implications for surface modeling

Sam S. Jackson, Michael J. Bishop, David L. Leese, Elizabeth M. Lord

Proceedings Volume 5794, Detection and Remediation Technologies for Mines and Minelike Targets X; (2005) https://doi.org/10.1117/12.602479
Event: Defense and Security, 2005, Orlando, Florida, United States

Abstract

A high-resolution, ground-based 3D laser scanner was recently evaluated for terrestrial site characterization of variable-surface minefield sites and generation of surface and terrain models. The instrument used to conduct this research was a Leica HDS3000 3D laser scanner. Two study sites located in the mid-western United States were used for this analysis. A very dense vegetation site (Grass Site) and a bare soil site (Dirt Site) with intermittent rocks and sparse vegetation were selected for data collection to simulate both obscured and semi-obscured minefield sites. High-density scans (0.2 cm to 2.0 cm) were utilized for Cyra target acquisition and were commensurate with size and distance to target from scanner location. Medium-density scans (2.0 cm to 5.0 cm) were chosen for point cloud generation of each site with approximately 10 percent overlap between field scans. To provide equivalent, unobstructed viewing perspectives from all scan locations at each site, the scanner was positioned on a trailer-mounted, chain-driven lift and raised to a scan height of 7.62 m above the ground. Final registration to UTM projected coordinate system of the multiple scan locations for the Dirt Site and Grass Site produced mean absolute errors of 0.014 m and 0.017 m, respectively. The laser scanner adequately characterized surface roughness and vegetation height to produce contour and terrain models for the respective site locations. The detailed scans of the sites along with the inherent, natural vegetation characteristics present at each site provide real-time discrimination of site components under contrasting land surface conditions.

Citation Download Citation

Sam S. Jackson, Michael J. Bishop, David L. Leese, and Elizabeth M. Lord "High-resolution 3D laser imaging of various surfaces in minefields and implications for surface modeling", Proc. SPIE 5794, Detection and Remediation Technologies for Mines and Minelike Targets X, (10 June 2005); https://doi.org/10.1117/12.602479

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