First aim of this paper is to describe a methodology
developed to create virtual fragments of archeological
archetypes in CAD (Computer Aided Design) environment. A simple Reverse Engineering (RE) technique was
adopted to reconstruct the shape of vases allowing the
archeologists, and so the CAD inexpert personnel, to use
it. Moreover, another relevant aspect is the definition of
a procedure to simulate shape errors on the virtual prototypes to make more realistic the results. The characteristics of the fragments to be reproduced were selected by
means of Design of Experiment (DOE) techniques. So, an
algorithm was implemented to simulate the shape error,
related to the working operations, that represents the
typical noise for the feature recognition of archeological findings. Furthermore, this algorithm can make more
complex the hypotheses related to the Gaussian model
of simulation of the error and can adapt the value of
the shape error (i.e. increasing it) according to the data
gathered in archaeological excavation. The case study
was based on the definition of a catalogue of archetypes
of the black Campanian vases studied and classified by
the archeologist J.P. Morel. The procedure conceived
was applied to five (among one hundred) vases of the
virtual catalogue obtaining forty instances of fragments
affected by errors and so creating virtual mock-ups of
typical pieces which may be found in the archeological
site considered for the case study.
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