A portable modular system for automatic acquisition of 3D objects
Borghese, N.A.; Ferrari, S.
Instrumentation and Measurement, IEEE Transactions on
Volume 49, Issue 5, Oct 2000 Page(s):1128 - 1136
Digital Object Identifier 10.1109/19.872942
Summary:A portable and flexible system for three-dimensional (3D) scanning
is presented. It is constituted of four main modules. The first module
is devoted to the acquisition of a set of 3-D points over the surface
through laser scanning (digitization). The second module reconstructs a
continuous 3D surface, filtering the measurement noise. Whenever
required (e.g., in CAD applications), a third module converts the
surface into a 3D mesh which can then be colored by projecting over it a
bitmap or the surface, obtained from a snapshot to obtain a highly
realistic textured 3D model. This instrument improves upon the
commercially available scanners in two main aspects. The digitizer
proves to be highly flexible and accurate, and it can easily accommodate
objects of different dimension. The construction of the surface and the
filtering of the digitization noise are performed in a single step
through a fully adaptive algorithm which produces a multiscale surface
and can be parallelized to work in real time. Results on the
reproduction of human faces are reported and discussed
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