Reverse engineering physical models employing a sensor integration between 3D stereo detection and contact digitization

Liang-Chia Chen; Grier C. I. Lin

doi:10.1117/12.294453

10 December 1997 Reverse engineering physical models employing a sensor integration between 3D stereo detection and contact digitization

Liang-Chia Chen, Grier C. I. Lin

Author Affiliations +

Proceedings Volume 3204, Three-Dimensional Imaging and Laser-based Systems for Metrology and Inspection III; (1997) https://doi.org/10.1117/12.294453
Event: Intelligent Systems and Advanced Manufacturing, 1997, Pittsburgh, PA, United States

Abstract

A vision-drive automatic digitization process for free-form surface reconstruction has been developed, with a coordinate measurement machine (CMM) equipped with a touch-triggered probe and a CCD camera, in reverse engineering physical models. The process integrates 3D stereo detection, data filtering, Delaunay triangulation, adaptive surface digitization into a single process of surface reconstruction. By using this innovative approach, surface reconstruction can be implemented automatically and accurately. Least-squares B- spline surface models with the controlled accuracy of digitization can be generated for further application in product design and manufacturing processes. One industrial application indicates that this approach is feasible, and the processing time required in reverse engineering process can be significantly reduced up to more than 85%.

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Liang-Chia Chen and Grier C. I. Lin "Reverse engineering physical models employing a sensor integration between 3D stereo detection and contact digitization", Proc. SPIE 3204, Three-Dimensional Imaging and Laser-based Systems for Metrology and Inspection III, (10 December 1997); https://doi.org/10.1117/12.294453

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