3D laser scanning on marine structures enables Kroes Marine Projects to drastically reduce leadtime and errors while reverse engineering (refitting) ships and yachts

Using today’s most accurate point cloud scanners the scanned data always results in dependable geometry for further engineering or classification certificates. Wether it concerns an interior refit, superstructure modification, hull extension or a complete refit of a yacht, we can provide you with the essential 3d geometry in any format.



• 3D scanning of hulls, superstructures or sections
• Processing and combining of scanned data
• Transferring scanned data to 3D Nurbs model
• Eliminating overlays and scan flaws
• Fairing of 3D nurbs model
• Supply of 2D / 3D drawings for (interior) engineering
• Refit engineering


3D scanning of hulls, superstructures or sections

One or multiple point coud scanners are positioned around, in and on the object to be scanned and multiple fixed points (the vitual fixed ‘world’) ensure the scanned data can be positioned in a 3d environment. A point cloud scan can consist of millions of scanned points capturing the smallest details and discontinuities.


Processing and combining of scanned data

The scanned data is transferred to a station running software to convert the pointcloud to surfaces. Separate scans are being combined after which discontinuities and overlaps are removed, resulting in the most accurate 3d scans in the marine industry.


Transferring scanned data to 3D nurbs model

However accurate, the resulting 3d surfaces derived from the point cloud is not directly suitable for engineering purposes. Further ‘lofting’ and conversion to a 3d ‘nurbs’ model is still required. Following the 3d mesh a ‘developable surface’ is being lofted precisely through the scanned mesh, providing architects, engineers and shipyards with the perfect basis for further design-engineering tasks.


Refit Engineering

Common refit projects we take on are hull extensions, superstructure modifications and (as shown in the image above) alterations of bow sections. In this case the scanned data was used to design, engineer and produce the building kit of a complete new section including bulbous bow.