Marine Services :: Mobile Vessel Laser Scanning

Laser scanning develops a very dense point cloud of an upland project area that can be used to create detailed, high-resolution 3-D digital models. The abundance of data collected by this technology and the ability to integrate the results with other survey information makes laser scanning a cost-effective tool for a variety of applications.

DEA Marine Services Division uses a vessel-based laser scanner with a measurement rate of approximately 8,000 points per second interfaced with the vessel position and motion reference system.

A digital SLR camera with a fixed, calibrated lens that is aligned to the scanner with a precision mount allows georeferenced imagery to be collected concurrently with the scan data. Multibeam bathymetry can also be obtained alongside the scan data, so that DEA can collect a very dense dataset—from the seafloor to the top of bank—in one pass. Combining mobile laser scanning with multibeam hydrography enables the generation of a fully integrated hydrographic and topographic digital terrain model.

DEA utilizes several static topographic scanners as well as mobile terrestrial systems for high-definition 3D laser scanning, asset management, and infrastructure mapping.

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