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Volumetric optical storage and associative/content-based retrieval

Advances in optical storage using optical volumetric memory have provided for the storage and readout of data in a parallel page-oriented form. Several approaches have been proposed for the associative/content-based retrieval of text and imagery. This paper presents several optical data storage methods and proposed techniques for associative/content-based retrieval using optical correlation, optical neural networks, and optoelectronic/integrated optics implementations.