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Secure medical image encryption with Walsh–Hadamard transform and lightweight cryptography algorithm
Medical and Biological Engineering and Computing, 2022Ömer Kasım
semanticscholar +1 more source
China Communications, 2018
Non-orthogonal multiple access (NOMA) is a new access method to achieve high performance gains in terms of capacity and throughput, so it is currently under consideration as one of the candidates for fifth generation (5G) technologies.
M. Usman +3 more
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Non-orthogonal multiple access (NOMA) is a new access method to achieve high performance gains in terms of capacity and throughput, so it is currently under consideration as one of the candidates for fifth generation (5G) technologies.
M. Usman +3 more
semanticscholar +1 more source
Fault Detection on Series Capacitor Compensated Transmission Line using Walsh Hadamard Transform
2018 International Conference on Computing, Power and Communication Technologies (GUCON), 2018In this paper, a fault detection scheme for series capacitor compensated three phase transmission lines is proposed using fast Walsh hadamard transform. The proposed scheme uses only single end measured fault current data.
Prachi Sharma, Gaurav Kapoor, Shoyab Ali
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Generalized Hadamard—Fourier Transforms
IETE Journal of Research, 1976Kernel of the discrete Fourier transform of order p is a p x p orthonormal kernel with pth roots of unity as its entries. Kernel of the Hadamard transform (and in particular, that of the Walsh-Fourier transform) of order p, when it exists, is a p x p orthonormal kernel with second roots of unity i.e. ± 1 as its entries. Orthonormal kernels of order 2n,
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A high-efficiency blind watermarking algorithm for double color image using Walsh Hadamard transform
The Visual Computer, 2021Siyu Chen +3 more
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Hadamard Transform Analytical Systems
1978A spectrometer sorts electromagnetic radiation into its component colors. Each color corresponds to a particular value of a parameter—wavelength, energy, or frequency—and the resulting spectrum displays the intensity of radiation for each value of this parameter.
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Skew Williamson-Hadamard Transforms
2011Skew Hadamard matrices are of special interest due to their uses, among others, in constructing orthogonal designs. Fast computational algorithms for skew Williamson-Hadamard transforms are constructed in this chapter. Fast algorithms of two groups of transforms based on skew-symmetric Williamson-Hadamard matrices are designed using the block ...
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Fast Williamson-Hadamard Transforms
2011Hadamard matrices have recently received attention due to their numerous known and promising applications. The FHT algorithms were developed for the orders N = 2n, 12 · 2n, 4n. The difficulties of the construction of the N ≡ 0(mod 4)-point HT are related to the problem of the existence of Hadamard matrices (the so-called Hadamard problem).
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Journal of Information Security and Applications, 2020
Hidangmayum Saxena Devi, K. M. Singh
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Hidangmayum Saxena Devi, K. M. Singh
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