Scan-to-BIM How it is done

• Laser scanning is a technique used to quickly, accurately and reliably capture every existing situation or object with a high level of detail.

• It is a very useful addition to existing landsurveying equipment such as total stations.

• Laserscanning is being used in many different industries for many different purposes. Just a few examples: • Proces industry (mainly for piping)

• Shipsbuilding and –repair (hull survey for hydrodynamic models)

• Bulk storage (quantity surveying)

• Civil works (highway clearances, profiles etc.)

• Building industry (renovation and conversions)

What is laser scanning?

How a laser scanner works? 1. The scanner sends out a laser beam

How a laser scanner works? 2. The laser beam is reflected by the object, the distance

is determined.

How a laser scanner works? 3. Horizontal and vertical angles are measured as well.

How a laser scanner works? 4. Angles and distances are combined. XYZ-coordinates

are calculated.

How a laser scanner works? 5. Proceeding in equal steps the scanner measures up to

1 million points per second.

How a laser scanner works? 6. By means of the intensity value the 3D appearance of

the point cloud is being enhanced.

How a laser scanner works? 7. Using an internal or external camera photo-realistic

coloring optionally can be added.

How a laser scanner works? 8. Usually many instrument set-ups are required to

completely capture the situation or object.

How a laser scanner works? 9. Using targets or overlap scans can be registered into a

single point cloud afterwards.

How does a scan-to-BIM project look like?

Just three simple steps!

• Coenradie takes care of scanning: • Outside building

• Inside building

• Both outside and inside

• With or without photo-realistic coloring

Step 1

• Coenradie creates a useful point cloud: • Noise removed

• Accurately registered

• Suitable for Autodesk Recap + Revit

Step 2

• In Revit a model is built from the point cloud: • Sometimes by Coenradie’s architectural partner

• Often by our client or the projects architect.

Step 3

• An accurate and reliable BIM-model of the existing situation.

Final result