In the traditional optical cryptosystems based on computational ghost imaging, a large
number of phase-only masks or speckle patterns are generated to reconstruct the object …

An optical multiple-image authentication approach based on transport of intensity equation
technique has been proposed. Initially, a phase-encoded plaintext is synthesized with …

A novel double-image encryption approach has been proposed based on optical
interference and logistic map. Initially, original images are rearranged into two scrambled …

In this paper, we propose a new multiuser nonlinear optical cryptosystem using fractional-
order vortex speckle (FOVS) patterns as security keys. In conventional optical cryptosystems …

In this paper, a novel information encryption scheme has been proposed based on the
customized data container, where the primary information can be recovered completely from …

A new superposition based multiple-image encryption using Fresnel-domain high
dimension chaotic phase encoding is proposed. In this method, each color image of an …

Based on discrete Fourier transforms and logistic-exponent-sine map, this paper
investigates an encryption algorithm for multiple color images. In the encryption process …

In this paper, we have proposed an asymmetric optical cryptosystem using polar
decomposition and Shearlet transform (ST). Polar decomposition is employed to generate …

An optical watermarking method is presented based on computational ghost imaging and
multiple logistic maps. Instead of directly embedding an original watermark into the host …

Scattering media are generally regarded as an obstacle in optical imaging. However, the
scattering of a diffuser can be exactly taken as an advantage to act as random phase masks …