A Feature-Based Approach to Reverse Engineering CAD Models from Point Clouds
Ioannis Fudos, University of Ioannina, Greece
Thursday, March 30
12:15pm - SENSQ 5317
Refreshments at 12:00pm
Hosted by Alexandros Labrinidis
Abstract
Reverse engineering is the process of obtaining a geometric CAD model from 3D points acquired by scanning an existing physical model. It is widely used in numerous applications, such as manufacturing, industrial design and jewelry design and reproduction. We argue that for creating editable CAD models meant for manufacturing it is more appropriate to use feature-based constraint-based representations, since they capture design intent. We provide a framework for reverse engineering of small objects and in particular jewelry that combines cross section identification, feature and constraint information exploitation to attain robust, accurate and editable CAD models. First, we extract certain candidate features for describing our point cloud. These features are then reconstructed to describe the solid object. Constraints are automatically detected and maintained. Constraints capture design intent and provide robustness guaranties. Voxel inspired techniques are also employed to describe repeated patterns common to various types of traditional jewelry.
Biography of Speaker
Ioannis Fudos is an Assistant Professor at the Department of Computer Science of the University of Ioannina. He received a diploma in computer engineering and informatics from University of Patras, Greece in 1990 and an MSc and PhD in Computer Science both from Purdue University, USA in 1993 and 1995 respectively. His research interests include computer graphics, geometry compilers, solid modelling, tracking moving objects, image and video retrieval and wap design. He has published in well establiched journals and conferences. He has served as reviewer in various conferences and journals and he has served in the program committee of conferences on CAGD and Human Computer Interaction. He has received funding from EC, the General Secretariat of Research and Technology, Greece, and the Greek Ministry of National Education and Religious Affairs.