A laser scanner captures object surface with a huge number of points, each one with 3D coordinate values. Scans at multiple positions are needed to capture the entire shape of objects. Multiple scan data can be docked and aligned by using common tie-points which are separately scanned with retro-reflective targets. Geo-referenced 3D point clouds and mesh objects created by Topcon ScanMaster software can be exported to users’ software, allowing for 3D measurement, 3D modeling, displacement observation, as-built survey, and other applications.

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