Results 11 to 20 of about 721,188 (387)
A Theory for Multiresolution Signal Decomposition: The Wavelet Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence, 1989 Multiresolution representations are effective for analyzing the information content of images. The properties of the operator which approximates a signal at a given resolution were studied.
S. Mallat
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Wavelet Theory: Applications of the Wavelet
, 2021 In this Chapter, continuous Haar wavelet functions base and spline base have been discussed. Haar wavelet approximations are used for solving of differential equations (DEs). The numerical solutions of ordinary differential equations (ODEs) and fractional differential equations (FrDEs) using Haar wavelet base and spline base have been discussed.
Mohammed S. Mechee +2 more
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A hybrid wavelet-Lyapunov exponent model for river water quality forecast
Journal of Hydroinformatics, 2021 The use of spectral theory and chaos theory on river water quality modeling is reported in a very limited way. This study proposes a wavelet-maximum Lyapunov exponent (WMLE) hybrid model for river water quality dynamics, combining spectral theory and ...
Jiping Jiang +5 more
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Wavelets and Wavelet Packets on Quantum Computers [PDF]
, 1999 We show how periodized wavelet packet transforms and periodized wavelet transforms can be implemented on a quantum computer. Surprisingly, we find that the implementation of wavelet packet transforms is less costly than the implementation of wavelet ...
Klappenecker, Andreas
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Multi-level Wavelet-CNN for Image Restoration [PDF]
2018 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2018 The tradeoff between receptive field size and efficiency is a crucial issue in low level vision. Plain convolutional networks (CNNs) generally enlarge the receptive field at the expense of computational cost.
Pengju Liu +4 more
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Wavelet Analysis on the Sphere [PDF]
, 2017 The goal of this monograph is to develop the theory of wavelet harmonic analysis on the sphere. By starting with orthogonal polynomials and functional Hilbert spaces on the sphere, the foundations are laid for the study of spherical harmonics such as zonal functions.
Mabrouk, Anouar Ben +2 more
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Elliptic-Cylindrical Wavelets: The Mathieu Wavelets [PDF]
IEEE Signal Processing Letters, 2004 10 pages, 2 ...
M. M. S. Lira +2 more
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Pairs of Frequency-based Nonhomogeneous Dual Wavelet Frames in the Distribution Space [PDF]
, 2009 In this paper, we study nonhomogeneous wavelet systems which have close relations to the fast wavelet transform and homogeneous wavelet systems.
Bin Han +30 more
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Empirical Wavelet Transform [PDF]
IEEE Transactions on Signal Processing, 2013 Some recent methods, like the empirical mode decomposition (EMD), propose to decompose a signal accordingly to its contained information. Even though its adaptability seems useful for many applications, the main issue with this approach is its lack of ...
J. Gilles
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Osiris wavelets and Set wavelets [PDF]
Journal of Applied Mathematics, 2004 An alternative to Osiris wavelet systems is introduced in two dimensions. The basic building blocks are continuous piecewise linear functions supported on equilateral triangles instead of on squares. We refer to wavelets generated in this way as Set wavelets. We introduce a Set wavelet system whose homogeneous mode density is 2/5.
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