Scientists from Tel Aviv University and Ben-Gurion University with the support of their Canadian and Chinese colleagues were able to solve the problem of inaccurate reading of objects by laser 3D scanners. The method was very inexpensive, but effective.
According to the law of Archimedes, the body, immersed in the liquid, acts as a pushing force equal to the weight of the fluid displaced by this body. This valuable knowledge and applied an international team of researchers, having made his 3D scanner from an inexpensive manipulator and a water-filled aquarium. The principle of its operation is quite simple: the manipulator holds the item being scanned, and then immerses it in a reservoir of water, extracts it, re-immerses it, doing it at a constant speed. A special device at this time measures the change in the water level and compiles a set of sections of the scanned object, then transfers the obtained data to a program that combines information and makes a 3D model on its basis.
As one should pour even an object with a complex shape into the tank, one can achieve a very great similarity between the original and the model based on it. The researchers demonstrated the possibilities of their method on the example of the figure of an elephant with a rider. Now the developers are busy updating the method, because such a scan takes quite a long time, in addition, there are problems with recognizing concave areas and cavities of objects.
The article is based on materials .
Comments
Post a Comment