A new FWHT‐CMF‐DFE based approach for channel equalization in CP‐free OFDM systems [PDF]
IET Communications, 2021 Orthogonal frequency division multiplexing (OFDM) has been widely used in wireless communication systems due to its robustness against the frequency selectivity of fading channels. It provides optimal performance and it also meets the requirements of the
BÜŞra Avci +2 more
exaly +5 more sources
Blind Watermarking of Color Medical Images Using Hadamard Transform and Fractional-Order Moments [PDF]
Sensors, 2021 This paper proposes a new blind, color image watermarking method using fast Walsh–Hadamard transformation (FWHT) and multi-channel fractional Legendre–Fourier moments (MFrLFMs). The input host color image is first split into 4 × 4 non-interfering blocks,
Mostafa M. Abdel-Aziz +3 more
doaj +2 more sources
DIAROP: Automated Deep Learning-Based Diagnostic Tool for Retinopathy of Prematurity [PDF]
Diagnostics, 2021 Retinopathy of Prematurity (ROP) affects preterm neonates and could cause blindness. Deep Learning (DL) can assist ophthalmologists in the diagnosis of ROP.
Omneya Attallah
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Improvements on Making BKW Practical for Solving LWE [PDF]
Cryptography, 2021 The learning with errors (LWE) problem is one of the main mathematical foundations of post-quantum cryptography. One of the main groups of algorithms for solving LWE is the Blum–Kalai–Wasserman (BKW) algorithm. This paper presents new improvements of BKW-
Alessandro Budroni +4 more
doaj +3 more sources
Detection of Focal and Non-Focal Electroencephalogram Signals Using Fast Walsh-Hadamard Transform and Artificial Neural Network [PDF]
Sensors, 2020 The discrimination of non-focal class (NFC) and focal class (FC), is vital in localizing the epileptogenic zone (EZ) during neurosurgery. In the conventional diagnosis method, the neurologist has to visually examine the long hour electroencephalogram ...
Prasanna J. +6 more
doaj +2 more sources
A novel blockchain-watermarking mechanism utilizing interplanetary file system and fast walsh hadamard transform [PDF]
iScienceSummary: This article proposes a new digital watermarking mechanism based on the Ethereum blockchain, Smart Contract, and Interplanetary File System (IPFS), with an enhanced Fast Walsh Hadamard Transform (FWHT) algorithm for watermark embedding and ...
Tong Liu +4 more
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Super Sub-Nyquist Single-Pixel Imaging by Means of Cake-Cutting Hadamard Basis Sort. [PDF]
Sensors (Basel), 2019 Single-pixel imaging via compressed sensing can reconstruct high-quality images from a few linear random measurements of an object/scene known a priori to be sparse or compressive, by using a point/bucket detector without spatial resolution. Nevertheless,
Yu WK.
europepmc +2 more sources
Design and Implementation of Sequency-Ordered Fast Walsh-Hadamard Transform (FWHT) in WCDMA
Tikrit Journal of Engineering Sciences, 2013 This paper presents the implementation of the Fast Walsh Hadamard Transform (FWHT) in sequence ordered method, in order to minimize the interference due to two users trying to transmit at the same time, and an attempt has made to simulate them.
Safaa M. Z. Al-Ubaidi
doaj +3 more sources
A NOVEL METHOD FOR GENERATING DIGITAL IMAGE OF ENCRYPTED SPEECH SIGNAL BASED ON FWHT AND WPLCM
MINAR International Journal of Applied Sciences and Technology, 2021 This paper suggests a novel algorithm for encrypting speech signals in common image formats and retrieve them from these image files. The speech signal is encrypted in three levels. In the first level,the sample positions are permuted based on keys generated using Game of Life matrix and Piecewise linear Chaotic Map (PWLCM) in order to reduce the ...
exaly +2 more sources
An Efficient Forensic Method for Copy–move Forgery Detection based on DWT-FWHT
Radioengineering, 2013 As the increased availability of sophisticated image processing software and the widespread use of Internet, digital images are easy to acquire and manipulate. The authenticity of the received images is becoming more and more important. Copy-move forgery
B. Yang +4 more
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