Results 351 to 360 of about 744,050 (371)

Propagation properties of Hollow higher-order cosh-Gaussian beams in quadratic index medium and Fractional Fourier transform

, 2021
Faroq Saad, A. Belafhal
semanticscholar   +1 more source

Fractional Fourier Transform based Riesz fractional derivative approach for edge detection and its application in image enhancement

Signal Processing, 2021
Kanwarpreet Kaur, N. Jindal, Kulbir Singh   +2 more
semanticscholar   +1 more source

Convolution theorem involving n-dimensional windowed fractional Fourier transform

Science China Information Sciences, 2021
Wen‐Biao Gao, Bingzhao Li
semanticscholar   +1 more source

Optical image encryption algorithm based on phase-truncated short-time fractional Fourier transform and hyper-chaotic system

Optics and lasers in engineering, 2020
Shaojun Yu, Nanrun Zhou, L. Gong, Zhenli Nie   +3 more
semanticscholar   +1 more source

Efficient and secure opto-cryptosystem for color images using 2D logistic-based fractional Fourier transform

, 2021
O. Faragallah, H. El-sayed, Ashraf A. Afifi, W. El-shafai   +3 more
semanticscholar   +1 more source

Parameter diagrams for the fractional Fourier transform

Journal of Modern Optics, 2001
Abstract A simple diagram illustrates the relations between six parameters of the generalized FRT. The diagram is developed to illustrate a variety of equations which have appeared in the literature, particularly in relation to free-space propagation, Gaussian beams, optical filtering experiments, and the ABCD matrix.
openaire   +2 more sources

A novel chaos based optical image encryption using fractional Fourier transform and DNA sequence operation

, 2020
M. B. Farah, Ramzi Guesmi, A. Kachouri, M. Samet   +3 more
semanticscholar   +1 more source

Hyperchaotic image encryption using phase-truncated fractional Fourier transform and DNA-level operation

, 2021
Z. Yabin, Li Zhang, Z. Zhong, Lei Yu, Mingguang Shan, Yi-chen Zhao   +5 more
semanticscholar   +1 more source

Windowed fractional Fourier transform on graphs: Properties and fast algorithm

Digit. Signal Process., 2021
Fang-Jia Yan, Bingzhao Li
semanticscholar   +1 more source

Analytical solutions of linear fractional partial differential equations using fractional Fourier transform

Journal of Computational and Applied Mathematics, 2021
Teekam Chand Mahor, Rajshree Mishra, R. Jain   +2 more
semanticscholar   +1 more source