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Published March 10, 1993 | public
Journal Article Open

Optical implementations of radial basis classifiers


We describe two optical systems based on the radial basis function approach to pattern classification. An optical-disk-based system for handwritten character recognition is demonstrated. The optical system computes the Euclidean distance between an unknown input and 650 stored patterns at a demonstrated rate of 26,000 pattern comparisons/s. The ultimate performance of this system is limited by optical-disk resolution to 10^11 binary operations/s. An adaptive system is also presented that facilitates on-line learning and provides additional robustness.

Additional Information

© Copyright 1993 Optical Society of America. Received 21 May 1992. This work was supported by the U.S. Army Research Office and the Defense Advanced Research Projects Agency. The authors thank Seiji Kobayashi of the Sony Corporation, Subrata Rakshit, and Alan Yamamura for assistance with the optical-disk recording system.


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