On construction of multivariate symmetric MRA-based wavelets
Let n be an integer and c be an integer or a semi-integer. For an arbitrary matrix dilation, we describe all masks that are symmetric with respect to the point c and have sum rule of order n. For each such mask, we give explicit formulas for the wavelet masks that are point symmetric/antisymmetric a...
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Veröffentlicht in: | Applied and computational harmonic analysis 2014-03, Vol.36 (2), p.215-238 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Let n be an integer and c be an integer or a semi-integer. For an arbitrary matrix dilation, we describe all masks that are symmetric with respect to the point c and have sum rule of order n. For each such mask, we give explicit formulas for the wavelet masks that are point symmetric/antisymmetric and generate a frame-like wavelet system providing approximation order n. For any matrix dilation (that is appropriate for the axial symmetry group on Zd in some natural sense), axial symmetric/antisymmetric frame-like wavelet systems providing approximation order n are constructed. Also, for several matrix dilations, the explicit construction of highly symmetric frame-like wavelet systems providing approximation order n is presented. |
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ISSN: | 1063-5203 1096-603X |
DOI: | 10.1016/j.acha.2013.04.001 |