Construction of wavelets with composite dilations

Guochang Wu, Zhiqiang Li and Zhengxing Cheng

Chaos, Solitons & Fractals, 2009, vol. 40, issue 5, 2447-2456

Abstract: In order to overcome classical wavelets’ shortcoming in image processing problems, people developed many producing systems, which built up wavelet family. In this paper, the notion of AB-multiresolution analysis is generalized, and the corresponding theory is developed. For an AB-multiresolution analysis associated with any expanding matrices, we deduce that there exists a singe scaling function in its reducing subspace. Under some conditions, wavelets with composite dilations can be gotten by AB-multiresolution analysis, which permits the existence of fast implementation algorithm. Then, we provide an approach to design the wavelets with composite dilations by classic wavelets. Our way consists of separable and partly nonseparable cases. In each section, we construct all kinds of examples with nice properties to prove our theory.

Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:40:y:2009:i:5:p:2447-2456

DOI: 10.1016/j.chaos.2007.10.037

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