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
1. Verfasser: Krivoshein, A.V.
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.
ISSN:1063-5203
1096-603X
DOI:10.1016/j.acha.2013.04.001