Correlation between Incident Angle, Measurement Distance, Object Colour and the Number of Acquired Points at CNC Laser Scanning

Abstract

In this paper the results of research about the influences of the incident angle, the measurement distance and object colour and reflectivity on the number of acquired points while using a laser-triangulation scanner on CNC-machines, are presented. The number of points is an essential parameter of a successful 3D surface reconstructio, although it is rarely considered as a subject of research. In this research we identified the scanning parameters to acquire a sufficient number of points for any surface reconstruction. The causes of the results are also identified and could be considered when creating automatic-measurement strategies for CNC-machines. Finally,, the equation for an estimation of the number of acquired points in the optimal area of measuring parameters for the case example is also introduced.