Title :
3D imager for dimensional gauging of industrial workpieces: state of the art of the development of a robust and versatile system
Author :
Sansoni, Giovanna ; Lazzari, Sara ; Peli, Stefano ; Docchio, Franco
Author_Institution :
Dept. of Electron. for Autom., Brescia Univ., Italy
Abstract :
In our laboratory, the performance of a 3D imaging system, based on structured light projection, has been improved by means of the development of three procedures, which are based on (i) the Gray Code projection Method (GCM), (ii) the Phase Shift Method (PSM), and (iii) the combination of GCM and PSM. In this paper, all the procedures are described and the results of the measurement performed on target objects are presented. The analysis of the systematic height error due to the crossed axes optical geometry of the system is performed, and the procedure for its compensation is presented
Keywords :
Gray codes; computer vision; production engineering computing; 3D imaging; Gray Code projection Method; Phase Shift Method; dimensional gauging; industrial workpieces; optical geometry; structured light projection; systematic height error; Encoding; Frequency; Gratings; High-resolution imaging; Laboratories; Optical imaging; Performance evaluation; Reflective binary codes; Robustness; Shape measurement;
Conference_Titel :
3-D Digital Imaging and Modeling, 1997. Proceedings., International Conference on Recent Advances in
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-8186-7943-3
DOI :
10.1109/IM.1997.603844
