Automated Inspection and
Tarek M. Sobh, Chris Jaynes,
Mohamed Dekhil, and Tom Henderson
Department of Computer Science
College of Engineering
University of Utah
Salt Lake City, Utah 84112, USA
Abstract. CAD/CAM (Computer Aided Design/Manufacturing) typically involves the design and manufacture of a mechanical part. The problem of reverse engineering is to take an existing mechanical part as the point of departure and to produce a design, and perhaps a manufacturing process, for the part. We explore a new approach to reverse engineering and inspection applications. Discrete event dynamic systems (DEDS) are investigated as a new framework for guiding and controlling the active exploration and perception of mechanical parts. The dynamic recursive context for finite state machines (DRFSM) is introduced as a new DEDS tool for utilizing the recursive nature of the mechanical parts under consideration. The framework utilizes DRFSM DEDS for constructing a goal-directed autonomous observer for inspection and reverse engineering purposes. The developed techniques are then used to aid CAD pre-constructed models for inspection purposes and/or to develop models for subsequent manufacturing, thus, closing the sensing modeling manufacturing inspection loop.
Keywords. Automation, Computer Vision, Control Systems, Discrete Event Dynamic Systems, Inspection, Intelligent Systems, Manufacturing, Reverse Engineering, Robotics.