Results 21 to 30 of about 2,149,393 (281)

Efficient Coding of the Embedded Signal in Steganographic Systems with Multiple Access [PDF]

open access: yesProblems of the Regional Energetics, 2021
Today, steganographic systems with multiple access are of considerable importance. In such sys-tems, the orthogonal Walsh-Hadamard transform is most often used for multiplexing and divid-ing channels, which leads to the need for efficient coding of the ...
Kobozeva A.A., Kobozeva A.A.,
doaj   +1 more source

A chaotic colour image encryption scheme combining Walsh–Hadamard transform and Arnold–Tent maps

open access: yesJournal of Ambient Intelligence and Humanized Computing, 2019
Syam Sankar, Ashok S Kumar
exaly   +2 more sources

Lyapunov Direct Method for Nonlinear Hadamard-Type Fractional Order Systems

open access: yesFractal and Fractional, 2022
In this paper, a rigorous Lyapunov direct method (LDM) is proposed to analyze the stability of fractional non-linear systems involving Hadamard or Caputo–Hadamard derivatives.
Changping Dai, Weiyuan Ma
doaj   +1 more source

Watermark Embedding Scheme with Variance of Chromatic Components

open access: yesEngineering Proceedings, 2023
This paper contains the idea of inserting a watermark with the variance of color components of the image. The color image is converted into CIE color space.
Dur-e-Jabeen   +5 more
doaj   +1 more source

Deep Neural Network with Walsh-Hadamard Transform Layer For Ember Detection during a Wildfire

open access: yes2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2022
In this article, we describe an ember detection method in infrared (IR) video. Embers, also called firebrands, can act as wildfire super-spreaders. We develop a novel neural network with a Walsh-Hadamard Transform (WHT) layer to process the IR video. The
Hongyi Pan   +5 more
semanticscholar   +1 more source

Design of Grover’s Algorithm over 2, 3 and 4-Qubit Systems in Quantum Programming Studio [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2022
In this paper, we design and analyse the Circuit for Grover’s Quantum Search Algorithm on 2, 3 and 4-qubit systems, in terms of number of gates, representation of state vectors and measurement probability for the state vectors.
Diana Jingle   +4 more
doaj   +1 more source

A new generalized Hilfer-type fractional derivative with applications to space-time diffusion equation

open access: yesResults in Physics, 2021
This paper is concerned to present and apply a new generalized fractional derivative, that is the Generalized Hilfer-type (GH) fractional derivative.
Tahir Ullah Khan   +2 more
doaj   +1 more source

A Novel GFDM Waveform Design Based on Cascaded WHT-LWT Transform for the Beyond 5G Wireless Communications

open access: yesSensors, 2021
In this paper, a new WHT-LWT-GFDM waveform obtained by combining Walsh–Hadamard Transform (WHT), Lifting Wavelet Transform (LWT), and Generalized Frequency Division Multiplexing (GFDM) is presented for use in next-generation wireless communication ...
Meryem Maraş   +4 more
doaj   +1 more source

Semi-fragile watermarking technology based on SVD decomposition and Hadamard transform

open access: yes网络与信息安全学报, 2017
The semi-fragile watermarking algorithm based on Hadamard transform and SVD decomposition was proposed to distinguish normal image processing operations from malicious tampering.Firstly,the carrier image was SVD decomposed,and Hadamard transform was ...
Zhi-hong WANG,Hui-fen HUANG,Yu-hong CHANG
doaj   +3 more sources

Fitzpatrick transform of monotone relations in Hadamard spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
In the present paper, monotone relations and maximal monotone relations from an Hadamard space to its linear dual space are investigated. Fitzpatrick transform of monotone relations in Hadamard spaces is introduced. It is shown that Fitzpatrick transform
Moslemipour A.   +3 more
doaj   +1 more source

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