Portale di Ateneo - En.Unibs.it

Introduction to the course: 3D systems classification based on the measurement range and the measurement resolution.
Rototranslation matrix, the pin-hole camera model. Model linearization.
Matrix of the coefficients, Pseudo inverse matrix. Method for the estimate of the unknowns.
Assembling of the layout based on optical triangulation.
Method for the evaluation of the centroids, development of the LabView environment for the development of the measurement procedures.
Camera calibration: the software for estimating the extrinsic and the intrinsic camera parameters.
Metrological evaluation of the quality of the calibration. Calibration markers and control markers.
The method for the calibration of the laser slit projector
Development of the procedure for the estimate of the line parameters in the LabView environment.
Development of the 3D measurement
Embedding the laser slit in the 3D optical head.
Use of the procedures developed in the LabView platform to perform 3D measurements.
This part is carried out by the students who must adapt the whole system (both hardware and software) to the measurement of two objects, differing in their dimension and texture.
Calibration of the OpenPTrack software: use of Time of Flight cameras to detect and track humans and objects.
Reverse engineering of free form shapes by means of a commercial scanner (VIVID 910): acquisition of single views, multi-view registration, creation and editing of the mesh, and 3D prototyping by means of 3D printing.