1 August 2000 Optical encryption using a joint transform correlator architecture
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Optical Engineering, 39(8), (2000). doi:10.1117/1.1304844
Abstract
An optical double random-phase encryption method using a joint transform correlator architecture is proposed. In this method, the joint power spectrum of the image to be encrypted and the key codes is recorded as the encrypted data. Unlike the case with classical double random-phase encryption, the same key code is used to both encrypt and decrypt the data, and the conjugate key is not required. Computer simulations and optical experimental results using a photorefractive- crystal-based processor are presented.
Takanori Nomura, Bahram Javidi, "Optical encryption using a joint transform correlator architecture," Optical Engineering 39(8), (1 August 2000). http://dx.doi.org/10.1117/1.1304844
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KEYWORDS
Image encryption

Image compression

Joint transforms

Crystals

Optical correlators

Fourier transforms

Spatial light modulators

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