A Novel Approach for 3D Part Inspection Using Laser-plane Sensors

The paper deals with the relevance of using laser-plane sensors in 3D part inspection. First, based on the evaluation of the measuring system capacities, a digitizing strategy permits to obtain a set of points with a sufficient quality as regards geometrical specifications. Despite the optimized strategy, the digitizing noise associated to the sensor alters data quality, and may affect the estimation of the surface defects (form deviation for instance is strongly affected by digitizing noise). An original filtering method is proposed to remove digitizing noise before the evaluation of the specifications.