A review of wavelet analysis and its applications: Challenges and opportunities

T Guo, T Zhang, E Lim, M Lopez-Benitez, F Ma… - IEEe …, 2022 - ieeexplore.ieee.org
As a general and rigid mathematical tool, wavelet theory has found many applications and is
constantly developing. This article reviews the development history of wavelet theory, from …

The fractional Fourier transform

HM Ozaktas, MA Kutay - 2001 European Control Conference …, 2001 - ieeexplore.ieee.org
A brief introduction to the fractional Fourier transform and its properties is given. Its relation
to phase-space representations (time-or space-frequency representations) and the concept …

[图书][B] Wavelet transforms and their applications

L Debnath, FA Shah - 2015 - Springer
Historically, the theory of Hilbert spaces originated from David Hilbert's (1862–1943) work
on quadratic forms in infinitely many variables with their applications to integral equations …

The fractional Fourier transform as a biomedical signal and image processing tool: A review

A Gómez-Echavarría, JP Ugarte, C Tobón - Biocybernetics and Biomedical …, 2020 - Elsevier
This work presents a literature review of the fractional Fourier transform (FrFT) investigations
and applications in the biomedical field. The FrFT is a time-frequency analysis tool that has …

An image encryption algorithm based on discrete fractional wavelet transform and quantum chaos

C Li, X Yang - Optik, 2022 - Elsevier
Aiming at low security of traditional encryption methods, a new image encryption algorithm
based on discrete fractional wavelet transform (DFRWT) and quantum Logistic mapping is …

FrWT-PPCA-based R-peak detection for improved management of healthcare system

V Gupta, M Mittal, V Mittal - IETE Journal of Research, 2023 - Taylor & Francis
Fourier analysis is well known to provide complete information of the frequencies present in
a signal. But in the process, time information is lost. Therefore, its time-frequency …

Synchrosqueezed fractional wavelet transform: A new high-resolution time-frequency representation

J Shi, G Chen, Y Zhao, R Tao - IEEE Transactions on Signal …, 2023 - ieeexplore.ieee.org
The synchrosqueezed wavelet transform (SSWT) has been proven to be a powerful time-
frequency analysis tool. However, this transform is unable to deal with signals with fast …

Fractional quaternion Zernike moments for robust color image copy-move forgery detection

B Chen, M Yu, Q Su, HJ Shim, YQ Shi - IEEE Access, 2018 - ieeexplore.ieee.org
In this paper, fractional Zernike moments (FrZMs) for complex signals are generalized to
fractional quaternion Zernike moments (FrQZMs) for quaternion signal processing in a …

A novel fractional wavelet transform and its applications

J Shi, NT Zhang, XP Liu - Science China Information Sciences, 2012 - Springer
The wavelet transform (WT) and the fractional Fourier transform (FRFT) are powerful tools for
many applications in the field of signal processing. However, the signal analysis capability of …

Discrete fractional wavelet transform and its application to multiple encryption

G Bhatnagar, QMJ Wu, B Raman - Information Sciences, 2013 - Elsevier
The fractional wavelet transform is a useful mathematical transformation that generalizes the
most prominent tool in signal and image processing namely wavelet transform by rotation of …