Results 31 to 40 of about 2,046,366 (281)
Sensors, 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
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
IEEE Access, 2021 Brain tumors are a serious and death-defying disease for human life. Discovering an appropriate brain tumor image from a magnetic resonance imaging (MRI) archive is a challenging job for the radiologist.
K. Venkatachalam +4 more
semanticscholar +1 more source
Fitzpatrick transform of monotone relations in Hadamard spaces
Analele 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
AIMS Mathematics, 2022 This paper discusses the existence, uniqueness and stability of solutions for a nonlinear fractional differential system consisting of a nonlinear Caputo-Hadamard fractional initial value problem (FIVP).
Hadjer Belbali +4 more
doaj +1 more source
Comparison of Image Compressions: Analog Transformations
Proceedings, 2020 A comparison between the four most used transforms, the discrete Fourier transform (DFT), discrete cosine transform (DCT), the Walsh–Hadamard transform (WHT) and the Haar-wavelet transform (DWT), for the transmission of analog images, varying their ...
Jose Balsa
doaj +1 more source
Root-Hadamard transforms and complementary sequences [PDF]
Cryptography and Communications, 2020 In this paper we define a new transform on (generalized) Boolean functions, which generalizes the Walsh-Hadamard, nega-Hadamard, $2^k$-Hadamard, consta-Hadamard and all $HN$-transforms. We describe the behavior of what we call the root- Hadamard transform for a generalized Boolean function $f$ in terms of the binary components of $f$.
Luis A. Medina +3 more
openaire +4 more sources
Optics Express, 2021 We present a novel configuration for high spectral resolution multiplexing acquisition based on the Hadamard transform in stimulated Raman scattering (SRS) microscopy.
L. Genchi +4 more
semanticscholar +1 more source
METHODS FOR DETECTING AND SELECTING AREAS ON TEXTURE BIOMEDICAL IMAGES OF BREAST CANCER
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2022 This paper is devoted to topical issues - the development of methods for analyzing texture images of breast cancer. The main problem that is resolved in the article is that the requirements for the results of pre-processing are increasing.
Ainur Orazayeva +5 more
doaj +1 more source
Improved Subsampled Randomized Hadamard Transform for Linear SVM [PDF]
AAAI Conference on Artificial Intelligence, 2020 Subsampled Randomized Hadamard Transform (SRHT), a popular random projection method that can efficiently project a d-dimensional data into r-dimensional space (r ≪ d) in O(dlog(d)) time, has been widely used to address the challenge of high ...
Zijian Lei, Liang Lan
semanticscholar +1 more source