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A significant drawback of the symmetry set evaluation for a 2D shape using the wave diffusion process1 is its slow execution time caused, in large part, by the diffusion step. We first recall the need for a diffusion process. A parallel implementation of the wave diffusion algorithm on a transputer network is presented. A faster alternative approach to detect the symmetry set, which we call the normal transform, and which is similar to the wave propagation mechanism, is described.

Original publication

DOI

10.1142/S0218001496000219

Type

Journal article

Journal

International Journal of Pattern Recognition and Artificial Intelligence

Publication Date

01/01/1996

Volume

10

Pages

291 - 306