Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Deyun Wei"'
Publikováno v:
Fractal and Fractional, Vol 8, Iss 2, p 75 (2024)
This paper introduces a new fast image encryption scheme based on a chaotic system and cyclic shift in the integer wavelet domain. In order to increase the effectiveness and security of encryption, we propose a new diffusion scheme by using bidirecti
Externí odkaz:
https://doaj.org/article/364fd60f783b4ba7a7f4d79431128ac8
Publikováno v:
Fractal and Fractional, Vol 8, Iss 2, p 92 (2024)
In this paper, we propose a secure image encryption method using compressive sensing (CS) and a two-dimensional linear canonical transform (2D LCT). First, the SHA256 of the source image is used to generate encryption security keys. As a result, the
Externí odkaz:
https://doaj.org/article/e01f612eae5342cd81e77c09867ebab8
Publikováno v:
IEEE Transactions on Signal Processing. 70:1333-1347
Publikováno v:
IEEE Transactions on Signal Processing. 70:4468-4482
Autor:
Deyun Wei, Jinshun Shen
Publikováno v:
Signal Processing. 207:108940
Publikováno v:
Circuits, Systems, and Signal Processing. 41:77-101
Two-dimensional Wigner distribution (2D WD) and ambiguity function (2D AF) are important tools for time–frequency analysis and signal processing, especially in the analysis of 2D chirp signals. In this paper, based on the classical 2D WD and 2D AF,
Publikováno v:
Information Sciences. 551:205-227
The existing watermarking algorithms invariant wavelet domain are weak at resisting geometric attacks and have small embedding capacities. In this paper, a robust double-encrypted watermarking algorithm based on the fractional Fourier transform (FRFT
Autor:
Deyun Wei, zhenyang yan
Publikováno v:
Digital Signal Processing. 136:103970
Publikováno v:
Expert Systems with Applications. 213:119074
Publikováno v:
IEEE Transactions on Signal Processing. 69:5259-5272
Two-dimensional non-separable linear canonical transform (2D NSLCT), as a generalized form of linear canonical transform (LCT) and 2D separable linear canonical transform (2D SLCT), has important applications in many engineering fields. Therefore, ac