Phase-encoded joint transform correlator as an optical encryption decoder

Takanori Nomura

doi:10.1117/12.326786

9 October 1998 Phase-encoded joint transform correlator as an optical encryption decoder

Takanori Nomura

Proceedings Volume 3466, Algorithms, Devices, and Systems for Optical Information Processing II; (1998) https://doi.org/10.1117/12.326786
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

The phase-encoded joint transform correlator as a decoder of an optical double random phase encoding system is described. By using the phase-encoded joint transform correlator, it is possible to decode the encrypted image with the same random phase mask which was used in the encryption procedure. The decoding algorithm and optical systems are described. Computer simulations confirm the proposed decoding algorithm.

Citation Download Citation

Takanori Nomura "Phase-encoded joint transform correlator as an optical encryption decoder", Proc. SPIE 3466, Algorithms, Devices, and Systems for Optical Information Processing II, (9 October 1998); https://doi.org/10.1117/12.326786

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