Biomedical Engineering Reference
In-Depth Information
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Figure 1.7: Examples of point signatures: (a) peak, (b) ridge, (c) saddle, (d)
pit, (e) valley, (f) roof edge.
be used to describe sculpted objects, as well as objects composed of simple
analytical surface primitives. Second, to be as compact and as expressive as
possible for accurate recognition of objects from single range image.
The representation uses the “shape index” to represent complex objects. An
object is characterized by a set of maximally sized surface patches of constant
shape index and their orientation dependent mapping onto the unit sphere.
