Journal ArticleDOI
Symmetric multivariate wavelets
TLDR
It is proved that an interpolatory mask whose center of symmetry is different from the origin cannot generate wavelets with vanishing moments of order n > 0, and an explicit method is given for construction of masks (non-interpolatory) m0 symmetric with respect to a semi-integer point and providing vanishing moments up to arbitrary order n.Abstract:
For arbitrary matrix dilation M whose determinant is odd or equal to ±2, we describe all symmetric interpolatory masks generating dual compactly supported wavelet systems with vanishing moments up to arbitrary order n. For each such mask, we give explicit formulas for a dual refinable mask and for wavelet masks such that the corresponding wavelet functions are real and symmetric/antisymmetric. We proved that an interpolatory mask whose center of symmetry is different from the origin cannot generate wavelets with vanishing moments of order n > 0. For matrix dilations M with |det M| = 2, we also give an explicit method for construction of masks (non-interpolatory) m0 symmetric with respect to a semi-integer point and providing vanishing moments up to arbitrary order n. It is proved that for some matrix dilations (in particular, for the quincunx matrix) such a mask does not have a dual mask. Some of the constructed masks were successfully applied for signal processes.read more
Citations
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Journal ArticleDOI
Approximation by frame-like wavelet systems ✩
A. Krivoshein,Maria Skopina +1 more
TL;DR: In this paper, a wide class of MRA-based wavelet systems which are not frames in L2(R d ), generally speaking, was studied and their approximation order was investigated.
Journal ArticleDOI
On construction of multivariate wavelet frames
TL;DR: In this paper, a necessary condition and a sufficient condition under which a given pair of refinable functions generate dual wavelet systems with a given number of vanishing moments are given. But their results are limited to the case of wavelet frames with matrix dilation.
Journal ArticleDOI
Matrix extension with symmetry and construction of biorthogonal multiwavelets with any integer dilation
TL;DR: In this paper, the biorthogonal matrix extension problem with symmetry was investigated and a step-by-step algorithm for constructing the desired pair of extension matrices (P e, P ˜ e ) from the given pair of matrices was provided.
Posted Content
Matrix Extension with Symmetry and Construction of Biorthogonal Multiwavelets
TL;DR: In this article, the biorthogonal matrix extension problem with symmetry is solved by constructing the desired pair of extension matrices (Pe;ee) from the given pair of matrices, such that the submatrix of the first row of Pe;ee is the given matrix P;e P, respectively.
Journal ArticleDOI
On construction of multivariate symmetric MRA-based wavelets☆
TL;DR: In this paper, the authors describe all masks that are symmetric with respect to the point c and have sum rule of order n. For each such mask, they give explicit formulas for the wavelet mask that are point symmetric/antisymmetric and generate a frame-like wavelet system providing approximation order n for any arbitrary matrix dilation.
References
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Journal ArticleDOI
Affine Systems in L2(Rd): The Analysis of the Analysis Operator.
Amos Ron,Zuowei Shen +1 more
TL;DR: In this paper, the affine product and quasi-affine system were introduced to characterize the structure of affine systems, and sufficient conditions for constructing tight affine frames from multiresolution were given.
Journal ArticleDOI
Wavelet filter evaluation for image compression
TL;DR: This work has evaluated all possible reasonably short (less than 36 taps in the synthesis/analysis pair) minimum-order biorthogonal wavelet filter banks and selected the filters best suited to image compression.
Journal ArticleDOI
Linear phase paraunitary filter banks: theory, factorizations and designs
TL;DR: A minimal factorization is developed for a large class of linear phase paraunitary systems in which each individual filter in the analysis synthesis banks has linear phase, and this factorization significantly reduces the number of parameters to be optimized in the design process.
Journal ArticleDOI
Approximation properties of multivariate wavelets
TL;DR: The approximation properties of multivariate refinable functions are investigated and a characterization for the approximation order provided by a refinable function in terms of the order of the sum rules satisfied by the refinement mask is given.
Journal ArticleDOI
Multiresolution and wavelets
Rong-Qing Jia,Zuowei Shen +1 more
TL;DR: In this article, a necessary and sufficient condition is given for the sequence {Sk}k∈ℤ to fom a multiresolution of L2(ℝd).