Project Summary
This work defines a spatial symbolic model that can be used to
describe classes of 3D objects (anatomical and man-made) and a
method for finding correspondences between the features of the symbolic
models and point sets of 3D mesh data. An abstract symbolic model
is used to describe spatial object classes in terms of parts, boundaries,
and spatial associations. A working model is a mechanism to link the
symbolic model to geometric information found in a sensed instance of
the class, represented by a 3D mesh data set. Matching is
performed in a three-step procedure that first finds working sets
of points in
the mesh, then fits constructed features to these sets, and finally
selects a subset of these constructed features that best correspond to
the features of the working model.
Block Diagram of the Recognition Process