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Published December 1994 | Published
Journal Article Open

Three-dimensional disk-based optical correlator


A total of 300 templates were stored as angularly multiplexed transmission holograms at multiple spots on a photopolymer disk. A novel correlator architecture is described and demonstrated that correlates all the templates against an input image within one disk rotation (≈ 20 ms). The projected performance of the system is 150,000 templates per disk and a processing rate of approximately 6000 correlations per second.

Additional Information

© 1994 Society of Photo-Optical Instrumentation Engineers. Paper 39034 received Mar. 24, 1994; revised manuscript received June 18, 1994; accepted for publication June 20, 1994. This work was supported by AFOSR and Northrop. The photopolymer was graciously made available to use by DuPont; in particular, the authors wish to thank Jay Calio of DuPont. In addition, we appreciate the many helpful discussions with Dr. Sidney Li.

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