Ultra fast 3D scanners from Fraunhofer Institute allow researchers to make a complete and very detailed scan of objects. Today on Hannover Fair was presented most accurate 3d scanner build for commercial porpoise. Nowadays clients can buy objects that are very accurate copies of originals. Who doesn’t want to have art and antique finds in public library or simply printed for desk.
It’s a spectacular device, the Engineers from Fraunhofer Institute have developed for computer graphics (IGD) in Darmstadt, Germany really remarkable device. The scanner is mobile, the objects are covered from all sides by 14 cameras, are mounted in movable arches.
3D Scanner is developed for the capture valuable artifacts
The device was presented already 2014, especially valuable fossils, models and sculptures from museums were scan, and then to be experienced on the Internet in 3D. Also valuable artifacts that are so sensitive that you must keep them in protected atmosphere, they can be made to a perfect copy and issued without taking them out from “box”
Without the new 3D scanner very expensive and rare objects can be lost, because the individual scans must be done by hand. Quite apart from the risk that these valuable pieces can be damaged scanning in other ways. Camera is more useful to regular solutions because is not interfering in any way with objects.
Seamless capture in two scan stations
But why should you digitize valuable art and archaeological rarities with the scanner? Of course, you can also commercialize the device and scan other objects, to present them in online shops in 3D. “Fully automate the scanner is digitizing economically and quickly possible”, says Pedro Santos of the IGD.
Online shops have the opportunity to present products, three-dimensional customers can become almost as good a picture as in a real store, where they can take their desire in the hand the object to examine it from all sides.
And how the objects are scanned
The objects that are going to be digitized, be placed on a surface made of Plexiglas. Via conveyor belt, it ends up in the first ScanStation. There capture high resolution industrial cameras that are attached on a semi-circular arch and below the tray, the object. There be many two-dimensional images from different angles. There is talk of up to 6561 photos during a single scan.
Camera on a robotic arm captured the gaps
From these digital images a 3D model can be with a procedure called Photogrammetry already calculated. It is however still not perfect. The virtual artifact in a second ScanStation is equipped with a robotic arm that is attached to a camera is completed. The arm is controlled on the basis of the preliminary model, the parts of the object to be photographed that were not recognized in the first station. “The capture takes geometry and texture so ten minutes”, says Santos. “After about 30 minutes the 3D model is ready”
The development costs of the equipment amounted to 1.8 million euro, of which the Federal Ministry of Economy and Energy granted 1.4 million.