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R&D Journal
versión On-line ISSN 2309-8988
versión impresa ISSN 0257-9669
Resumen
RUTHER, H. y CRAIGIE, D.H.. The development of a contact-free 3D co-ordinate measurement machine. R&D j. (Matieland, Online) [online]. 1998, vol.14, pp.8-14. ISSN 2309-8988.
The paper describes the design of a non-contact 3D co-ordinate measurement system for reversed engineering and quality control based on digital photogrammetry methods. The system projects a laser dot onto the surface of the object to be measured and employs machine vision algoritluns and photogranunetric models to automatically determine the 3D position of the surface point. The laser dot is then mechanically moved in a grid pattern and the object is rotated until the entire surface is captured. The paper gives details of the system design, the measurement procedure and reports test results. Accuracy estimates derived from measurements using a prototype system indicate accuracies better than 0.2 mms.
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