First name and Last name Joris S.M. vergeest, Sander Spanjaard,
Chensheng Wang, Yu Song
Delft University of Technology
Faculty of Industrial Design Engineering
NL-2628 CE Delft
The Netherlands
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e-mail: j.s.m.vergeest@io.tudelft.nl |
http://www.dynash.tudelft.nl |
Keywords: .Freeform shape, complex freeform features, 3D registration, shape matching.
Abstract
The registration of 3D form features is essential to the supporting
of reverse shape design processes. Extracting an editable shape feature from
unordered data points is notoriously hard. We present a new method to extract
a shape instance plus design parameters from a ridge structure contained
in a freeform surface, where the ridge has no predefined path, and can have
varying height and width as a function of cumulative arc-length. This complex
feature is uncovered by a match-and-crawl algorithm based on partial template
matching and shape dissimilarity computation. The (varying) longitudinal
direction of the ridge is explicitly registered as a function of arc-length,
as are its width and height. The latter two quantities are yielded as independent
parameters for subsequent interactive shape modeling processes.