Handwritten zip code recognition using an optical radial basis function classifier
Mark Allen Neifeld, Subrata Rakshit, Demetri Psaltis · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1991
We describe a new optical architecture for the realization of distance-based classifiers and in particular, radial basis function classifiers. This new system uses spatial multiplexing to improve computation speed while simple parallel postprocessing electronics are used to provide on-line learning in the optical neural network. This architecture is compared with a previous optical system which realized a radial basis function classifier in the solution of the