Active Inspection and Reverse Engineering


       Tarek M. Sobh, Jonathan Owen, Chris Jaynes, Mohamed Dekhil, and
			      Thomas C.Henderson

 
                                  UUCS-93-007

                                 March, 1993


                         Department of Computer Science
                              University of Utah
                         Salt Lake City, UT 84112 USA


                                    Abstract


We propose a new design for inspection and reverse engineering environments.
In particular, we investigate the use of discrete event dynamic systems (DEDS)
to guide and control the active exploration and sensing of mechanical parts
for industrial inspection and reverse engineering. We introduce dynamic
recursive finite state machines (DRFSM) as a new DEDS tool for utilizing the
recursive nature of the mechanical parts under consideration. The proposed
framework uses DRFSM DEDS for constructing an observer for exploration and
inspection purposes. We construct a sensing -> CAD interface for the automatic
reconstruction of parts from visual data. We also implement a graphical
interface for designing DRFSM DEDS controllers.

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This work was supported in part by DARPA grant N00014-91-J-4123, NSF grant CDA
9024721, and a University of Utah Research Committee grant.  All opinions,
findings, conclusions or recommendations expressed in this document are those
of the author and do not necessarily reflect the views of the sponsoring
agencies.