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Inferring 3D Shapes from 2D Codons
(1985-04-01)
All plane curves can be described at an abstract level by a sequence of five primitive elemental shapes, called "condons", which capture the sequential relations between the singular points of curvature. The condon ...
Codon Constraints on Closed 2D Shapes
(1984-05-01)
Codons are simple primitives for describing plane curves. They thus are primarily image-based descriptors. Yet they have the power to capture important information about the 3-D world, such as making part boundaries ...
Location Recognition Using Stereo Vision
(1989-10-01)
A mobile robot must be able to determine its own position in the world. To support truly autonomous navigation, we present a system that builds and maintains its own models of world locations and uses these models to ...