Processes at discontinuities

Authors:
Patrick J. Hayes;Michael Leyton
Affiliations:
XEROX, PARC, Palo Alto, California;Department of Psychology, Rutgers University, New Brunswick, New Jersey
Venue:
IJCAI'89 Proceedings of the 11th international joint conference on Artificial intelligence - Volume 2
Year:
1989

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Abstract

Leyton [1988] developed a set of rules by which process-history can be recovered from smooth natural shapes such as outlines of tumors, clouds, or islands. In this paper, we extend this analysis to deal with shapes with first-order discontinuities such as corners, creases and cusps. A simple extension to the notation allows one extra rule to cover most of these phenomena.