The use of a laser range sensor in the 3D part digitalization process for inspection tasks allows very signi cant improvement in acquisition speed and in 3D measurement points density but does not equal the accuracy obtained with a coordinate measuring machine (CMM). Inspection consists in verifying the accuracy of a part related to a given set of tolerances. It is thus necessary that the 3D me...

The deployment of 3D optical scanning technologies for measuring three-dimensional shapes of sculptures of high morphological complexity, have seen recently a development so noticeable that it emerges as one of the most promising methods for the analysis and preservation of the Cultural Heritage. In spite of an undoubted richness of information produced with this technique, the method for gener...

The paper presents a rigid body kinematic model of the co-ordinate measuring machin. The individual error components are described by means of transformation matrices and the resulting global error is given in the form of twisted space curves. A new techniques for measuring these error components is described. Using these parameters, an error compensation program has been implemented, which has...

This study proposes an algorithm to autonomously generate the scan path for a laser line scanner mounted on coordinate measuring machine. The is determined based task-specific measurement uncertainty in order prove conformance specified tolerances. novelty of integration uncertainty. development made possible by recent developments digital twins optical systems. Furthermore, takes all constrain...

This paper presents an efficient method for assessing the accuracy of 3D orientation of a magnetic and inertial measurement unit (MIMU) by means of an optical measurement system. We fix a MIMU on the calibration tool of an optical measurement system, which is commonly used to calibrate the coordinate system of the system, so that we can simplify the alignment procedure of two coordinate systems...

PURPOSE The purpose of this investigation was to compare the accuracy of facial models fabricated using facial moulage impression methods to the three-dimensional printed (3DP) fabrication methods using soft tissue images obtained from cone beam computed tomography (CBCT) and 3D stereophotogrammetry (3D-SPG) scans. MATERIALS AND METHODS A reference phantom model was fabricated using a 3D-SPG ...