Marine Industry Scanning
The typical approach when performing ship checks is to bring designers and/or engineers on board where, using tape measures, they record measurements of the existing systems and spaces.
These measurements are then used in developing scope and construction documents. However, the uncertainty of the measurements requires allowances be included to account for discrepancies between the measurements and reality. These allowances
can be expensive and/or prevent the installation of new equipment in a certain location because the space was considered too small, when in fact there was adequate clearance. Or, conversely, maybe not enough at the time of installation. A better approach
involves scanning ship spaces with a 3D laser scanner to create a very detailed and accurate 3D point cloud model. Today's high speed laser scanners are quite suitable for this purpose as they can take tens of millions of measurements in just a few minutes.
Scans are taken from various positions in order to provide sufficient coverage around equipment. The scans are then registered together to bring them all into the same coordinate system. Scans of the ships hull and keel can also be taken, in which hull curves
and surface models can be created for fuel or stability analyis if needed.
Laser scanning used below to create this accurate surface model of the boat's hull. Scan points can be seen on both sides of the surface model. This implies an excellent fit with minimal deviation.
Underside of hull and it's scan points
Inside view displaying scan points against the surface model
Scan points and modeled keel
Here the point cloud was first isolated into layered groups as noted by their different colors. Using laser scans as a reality reference, a docking plan was then created by modeling the ship's hull and dunnage.
Isolation of the hull and dunnage
Underside view of isolated scan points and surface model
View of the stern, scan points and the surface model
More examples of marine industry laser scanning. From accurate surface models to mathematically valid hull curves. Each created from laser scan data.
Point cloud on the left,
boat model on the right
Point cloud, hull curves, and surface model
Point cloud on the left, model and hull curves on the right
Isolated point cloud on the left,
sailboat model on the right