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Reconstructing 3D CAD Models for Simulation Using Imaging-Based Reverse Engineering

Summary: Reconstructing 3D CAD Models for Simulation Using
Imaging-Based Reverse Engineering
Sophie Voisina,b, David Pagea, Andreas Koschana, and Mongi Abidia
aIRIS Laboratory, The University of Tennessee, 1508 Middle Drive, Knoxville, TN, USA;
bLaboratoire Le2i UMR CNRS 5158, Universit´e de Bourgogne, Facult´e Mirande, Dijon, France
The purpose of this research is to investigate imaging-based methods to reconstruct 3D CAD models of real-world
objects. The methodology uses structured lighting technologies such as coded-pattern projection and laser-based
triangulation to sample 3D points on the surfaces of objects and then to reconstruct these surfaces from the
dense point samples. This reverse engineering (RE) research presents reconstruction results for a military tire
that is important to tire-soil simulations. The limitations of this approach are the current level of accuracy
that imaging-based systems offer relative to more traditional CMM modeling systems. The benefit however is
the potential for denser point samples and increased scanning speeds of objects, and with time, the imaging
technologies should continue to improve to compete with CMM accuracy. This approach to RE should lead to
high fidelity models of manufactured and prototyped components for comparison to the original CAD models
and for simulation analysis. We focus this paper on the data collection and view registration problems within
the RE pipeline.
Keywords: structured light, acquisition, reconstruction, reverse engineering, CAD
Reverse engineering (RE) is a powerful tool to reproduce real objects in a virtual world. RE enables engineers


Source: Abidi, Mongi A. - Department of Electrical and Computer Engineering, University of Tennessee


Collections: Computer Technologies and Information Sciences