End Points, Complexity, and Visual Illusions

One aspect of a new theory of feature perception is considered. An algorithm is presented which can perceive and locate various features of a pattern by analyzing a statistic of the "chords" of the pattern. The procedure is illustrated by applying the algorithm to a pattern containing the Muller-Lyer figures. In measuring the length of the figures it is found that the algorithm has a visual illusion. A machine capable of executing the algorithm is described.