3D free

In this paper a new solution to the 3D free form object recovering problem is presented. A vision systembased on a manufactured grid projector and a CCD camera is conceived to achieve Lacoste Polo Shirts.Calibration procedure of such a system is also studied. A robust sub-pixel model based approach toextract grid nodes from captured images had been developed and used in both camera calibration and 3Dpoints reconstruction procedures. The Cheap Lacoste Polo Shirts obtained from experimental tests demonstrates the accuracyof obtained 3D measurements (less than 1%). This result is crucial for the object pose recovering, since itallows to well reconstruct local surface patches and so to generate matching hypotheses more precisely.The possibility to control the projector’s orientation allows to scan particular local regions of the objectand therefore extract 3D surface Lacoste Shirts which are exploited to perform 3D object recovering.