A Theory for Multiresolution Signal Decomposition: The Wavelet Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence
An introduction to wavelets
Wavelets and stochastic processes
Mathematics and Computers in Simulation
A wavelet "time-shift-detail" decomposition
Mathematics and Computers in Simulation
A Wavelet Tour of Signal Processing, Third Edition: The Sparse Way
A Wavelet Tour of Signal Processing, Third Edition: The Sparse Way
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Multiresolution Approximation subspaces are $$\mathcal{L}^{2}(\mathbb{R})$$ -subspaces defined for each scale over all time shifts, i.e., "scale subspaces", while with respect to a given wavelet, the signal space $$\mathcal{L}^{2}(\mathbb{R})$$ not only admits orthogonal scale subspaces basis, but orthogonal "time shift subspaces" basis as well. It is therefore natural to expect both scale subspaces and time shift subspaces to play a role in Wavelet Theory and, in particular, in Multiresolution Approximation as well. This is what will be discussed in the paper.