Evaluation of holographic associative searching

Shengluan Zhong; Pericles A. Mitkas; George A. Betzos

doi:10.1117/12.370225

22 November 1999 Evaluation of holographic associative searching

Shengluan Zhong, Pericles A. Mitkas, George A. Betzos

Proceedings Volume 3802, Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers; (1999) https://doi.org/10.1117/12.370225
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Angularly multiplexed volume holography is considered for use in optical memory systems because of its compactness, capacity, fast parallel access, and associative readout capability. The associative nature makes holographic memories especially attractive to database applications. We define three characteristics, recall, precision, and fallout, and propose a figure of merit to measure the accuracy of associative recall and evaluate the performance of holographic memory systems with different types of data. The effect of a post-processing technique on the quality of the system's response is presented as well. This technique can significantly improve the performance of associative searches involving analog data.

Citation Download Citation

Shengluan Zhong, Pericles A. Mitkas, and George A. Betzos "Evaluation of holographic associative searching", Proc. SPIE 3802, Advanced Optical Data Storage: Materials, Systems, and Interfaces to Computers, (22 November 1999); https://doi.org/10.1117/12.370225

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