Optical image encryption by random shifting in fractional Fourier domains.

By B. Hennelly, John T. Sheridan. Optics Letters, 2003

432 citations recorded by the source corpus.

A number of methods have recently been proposed in the literature for the encryption of two-dimensional information by use of optical systems based on the fractional Fourier transform. Typically, these methods require random phase screen keys for decrypting the data, which must be stored at the receiver and must be carefully aligned with the received encrypted data. A new technique based on a random shifting, or jigsaw, algorithm is proposed. This method does not require the use of phase keys. The image is encrypted by juxtaposition of sections of the image in fractional Fourier domains. The new method has been compared with existing methods and shows comparable or superior robustness to blind decryption. Optical implementation is discussed, and the sensitivity of the various encryption keys to blind decryption is examined.

Subfields: Applied Mathematics, Computer Vision and Pattern Recognition, Mathematical Physics

View Paper: https://www.semanticscholar.org/paper/aace28e77e5329a9765675b86e4b5314510a59b2

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In Computer Vision and Pattern Recognition

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Citations in the corpus

Optical image compression and encryption methods (2009, background): “On the other hand, they are used in pecialized applications such as maskless lithography systems [15].”
Image encryption using the two-dimensional logistic chaotic map (2012, background): “The former group adopts optics or optical instruments to build physical systems for image encryption [8] [9] [10] [11] [12] , which commonly relies on optics to randomize frequency components in an image.”