Results 21 to 30 of about 1,090,025 (303)
The Application of the Walsh Transform in Biosignal Processing [PDF]
, 1987 In der vorliegenden Arbeit wurde die Walsh-Transformierte für die Beurteilung einiger gewählter Merkmale - der Walsh-Koeffiziente genutzt. Das Herausheben dieser Merkmale dank der Anwendung der Walsh-Transformierten ist ein Kompromiss zwischen den Kosten
Meffert, Beate, Hochmuth, Olaf
core +1 more source
Evaluation of Wavelet Transform Audio Hiding
Iraqi Journal for Computers and Informatics, 2002 Audio hiding is method for embedding information into an audio signal. It seeks to do so in a robust Fashion, while not perceivably degrading the host signal (coves audio). Hiding data in audio signals presents & varicty of challenges: due in part to the
Ziyad Tariq Mustafa +2 more
doaj +1 more source
Complexity adaptation in H.264/AVC video coder for static cameras [PDF]
, 2009 H.264/AVC uses variable block size motion estimation (VBSME) to improve coding gain. However, its complexity is significant and fixed regardless of the required quality or of the scene characteristics. In this paper, we propose an adaptive complexity
Kim, Chanyul +3 more
core +1 more source
Generalized Walsh Transforms and Epistasis
Bulletin of the Belgian Mathematical Society - Simon Stevin, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Iglesias, M. T. +2 more
openaire +4 more sources
The Walsh Transform of a Class of Boolean Functions
, 2021 The Walsh transform is an important tool to investigate cryptographic properties of Boolean functions. This paper is devoted to study the Walsh transform of a class of Boolean functions defined as g(x)=f(x)Tr1n(x)+h(x)Tr1n(δx), by making use of the known
Liting WANG +3 more
core +1 more source
Matrix calculation of correlation characteristics based on spectral methods
Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2020 The paper is devoted to the problem of calculation of autocorrelation function that is important for solving the tasks that require finding the repeating intervals of the signal or defining the main frequency of the signal against the background of non ...
Liudmyla Laikova +2 more
doaj +1 more source
Image Compression using Walsh Functions [PDF]
, 2023 Currently image transfer and storage require compression to reduce memory usage and to increase transmission speed In this article the hybrid compression algorithm is used for color black and white images It includes the discrete wavelet transform ...
Misulin Egor Anatolevich +1 more
core
Parallel Fast Walsh Transform Algorithm and Its Implementation with CUDA on GPUs
Cybernetics and Information Technologies, 2018 Some of the most important cryptographic characteristics of the Boolean and vector Boolean functions (nonlinearity, autocorrelation, differential uniformity) are connected with the Walsh spectrum.
Bikov Dusan, Bouyukliev Iliya
doaj +1 more source
eGHWT: The Extended Generalized Haar–Walsh Transform [PDF]
Journal of Mathematical Imaging and Vision, 2022 AbstractExtending computational harmonic analysis tools from the classical setting of regular lattices to the more general setting of graphs and networks is very important, and much research has been done recently. The generalized Haar–Walsh transform (GHWT) developed by Irion and Saito (2014) is a multiscale transform for signals on graphs, which is a
Naoki Saito 0001, Yiqun Shao
openaire +6 more sources
Applied Sciences, 2020 This paper focuses on reconstruction of dynamic velocity and displacement from seismic acceleration signal. For conventional time-domain approaches or frequency-domain approaches, due to initial values and non-negligible noise in the acceleration signal,
Qi Zhang, Xiang Yuan Zheng
doaj +1 more source