Results 51 to 60 of about 289,031 (382)
Continuous and discrete Bessel wavelet transforms
Journal of Computational and Applied Mathematics, 2003 The authors speak about the continuous and discrete wavelet transforms associated with the Bessel operator, which are defined and studied in the book of \textit{K. Trimèche} [``Generalized harmonic analysis and wavelet packets'' (2001; Zbl 0976.44009)]. The results presented in this paper are given in this book.
M. M. Dixit, R. S. Pathak
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Continuous and Discrete Wavelet Transforms [PDF]
SIAM Review, 1989 This paper is an expository survey of results on integral representations and discrete sum expansions of functions in $L^2 ({\bf R})$ in terms of coherent states. Two types of coherent states are considered: Weyl–Heisenberg coherent states, which arise from translations and modulations of a single function, and affine coherent states, called ’wavelets,’
David F. Walnut, Christopher Heil
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An algebraic construction of discrete wavelet transforms [PDF]
Applications of Mathematics, 1993 Discrete wavelets are viewed as linear algebraic transforms given by banded orthogonal matrices, which can be built up from small matrix blocks with special properties. A generalization of the Daubechies finite support orthogonal wavelets is discussed and some special cases promising more rapid signal reduction are derived.
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Segmentwise Discrete Wavelet Transform [PDF]
, 2012 Dizertační práce se zabývá algoritmy SegDWT pro segmentový výpočet Diskrétní Waveletové Transformace – DWT jedno i vícedimenzionálních dat. Segmentovým výpočtem se rozumí způsob výpočtu waveletové analýzy a syntézy po nezávislých segmentech (blocích) s ...
Průša, Zdeněk
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Anomaly Detection Method for Hybrid Workpieces Using Dynamic Time Warping
Advanced Engineering Materials, EarlyView.Monitoring of hybrid workpieces: when machining hybrid workpieces, unavoidable axial deviations of the material transition zone cause temporal shifts in the process force signals. A new anomaly detection method based on dynamic time warping is proposed to detect material defects.
Berend Denkena +3 more
wiley +1 more source
Techniques for Accelerometer Reading Processing on Railway Transport Using Wavelet Transform
Известия высших учебных заведений России: РадиоэлектроникаIntroduction. Safety issues of railway transport are inevitably connected with the condition of railway tracks and railway wheels. Various defects, such as irregularities of the railway track, may lead to emergencies and incidents.
A. M. Boronakhin +4 more
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Integrasi Discrete Wavelet Transform dan Singular Value Decomposition pada Watermarking Citra untuk Perlindungan Hak Cipta [PDF]
, 2015 Tren masalah watermarking pada sekarang ini adalah bagaimana mengoptimalkan trade-off antara imperceptibility (visibilitas) citra ter-watermark terhadap pengaruh distorsi dan robustness terhadap penyisipan watermark.
Chandra, J. (Jaya), Wahono, R. S. (Romi)
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3D‐Printed Architected Material for the Generation of Foam‐Based Protective Equipment
Advanced Engineering Materials, EarlyView.This study investigates 3D‐printed architected structures as alternatives to traditional foams in protective gear. It focuses on customizing impact strength and damping through design and manufacturing integration. Testing shows these structures outperform conventional foams, offering enhanced customizability, lower weight, and tunable performance ...
Ali Zolfagharian +5 more
wiley +1 more source
Application of multi-dimensional wavelet transform to fluid mechanics
Theoretical and Applied Mechanics Letters, 2020 : This paper first reviews the application research works of wavelet transform on the fluid mechanics. Then the theories of continuous wavelet transform and multi-dimensional orthogonal (discrete) wavelet transform, including wavelet multiresolution ...
Akira Rinoshika, Hiroka Rinoshika
doaj
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
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