We present an image encryption algorithm to simultaneously encrypt two images into a
single one as the amplitudes of fractional Fourier transform with different orders. From the …

We propose a novel random fractional Fourier transform by randomizing the transform
kernel function of the conventional fractional Fourier transform. The random fractional …

This article considers a game-theoretic framework for distributed empirical risk minimization
(ERM) problems over networks where the information acquisition at a node is modeled as a …

Phase retrieval technique is regarded as one of the most significant tools to solve optical
inverse problems. Several phase retrieval algorithms are discussed in this review. The …

We propose a double image encryption by using random binary encoding and gyrator
transform. Two secret images are first regarded as the real part and imaginary part of …

We present a novel image-encryption algorithm that employs multichannel and multistage
fractional Fourier-domain filtering architecture. We perform the encryption and decryption by …

Additive manufacturing (AM) technologies, such as selective laser sintering (SLS) and fused
deposition modeling (FDM), have become the powerful tools for direct manufacturing of …

We demonstrate that hollow Gaussian beams can be obtained from Fourier transform of the
differentials of a Gaussian beam, and thus they can be generated by spatial filtering in the …

A color image encryption algorithm is designed by use of Arnold transform and discrete
cosine transform (DCT). The RGB components of the color image are scrambled by Arnold …

A common approach to solve partially observable Markov decision processes (POMDPs) is
transforming them into Makov decision processes (MDPs) defined on information states …