Optical image encryption based on input plane and Fourier plane random encoding

Abstract

We propose a new optical encoding method of images for security applications. The encoded image is obtained by random-phase encoding in both the input and the Fourier planes. We analyze the statistical properties of this technique and show that the encoding converts the input signal to stationary white noise and that the reconstruction method is robust.

Photon-counting double-random-phase encoding for secure image verification and retrieval

“…According to the DRPE algorithm [2], a primary image f x ( ) can turn up to be a noisy- [ ] , are used in the spatial and Fourier domains, respectively, as it is mathematically described by…”

“…By following this procedure, intruders cannot easily recognize the decrypted image retrieved from the sparse encrypted distribution since it is not intended for visualization of the primary image, but for verification of the information by means of optical correlation. Thus, the integration of photon-counting techniques along with doublerandom-phase encryption (DRPE) [2] introduces an additional layer of information protection that increases the system security and makes the verification process more robust against unauthorized attacks. Other DRPE-based authentication techniques that utilize multiple images, biometric information and near-infrared remote sensing have been developed for a secure multifactor verification [3][4].…”

Information Authentication of Three-Dimensional Photon Counting Double Random Phase Encryption Using Nonlinear Maximum Average Correlation Height Filter

“…Recently, data encryption techniques have been widely researched [1][2][3][4][5][6][7][8][9][10][11]. Double random phase encryption (DRPE) that is one optical encryption technique has many advantages; easy implementation and high encryption speed [5].…”

“…Double random phase encryption (DRPE) that is one optical encryption technique has many advantages; easy implementation and high encryption speed [5]. DRPE uses two independent random phase masks, which follow the statistical distribution such as Uniform distribution with support [0, 1] to encrypt the primary data.…”

A Novel way of image encrption with piplining pixel scrambling and fractional fourier transform

“…In every field where Fourier transform is used, the processing effect can be greatly improved by using FRFT. Many researches on data encryption with FRFT have been reported [5][6][7][8][9][10][11][12][13][14]. Unnikrishnan et al [5,6] encoded a primary image to stationary white noise by using two statistically independent random phase masks in fractional Fourier domains.…”