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Construction of Wavelet Bases That Mimic the Behaviour of Some Given Operator

I. Khalidov, D. Van De Ville, T. Blu, M. Unser

Proceedings of the SPIE Optics and Photonics 2007 Conference on Mathematical Methods: Wavelet XII, San Diego CA, USA, August 26-29, 2007, vol. 6701, pp. 67010S-1/67010S-7.

Probably the most important property of wavelets for signal processing is their multiscale derivative-like behavior when applied to functions. In order to extend the class of problems that can profit of wavelet-based techniques, we propose to build new families of wavelets that behave like an arbitrary scale-covariant operator. Our extension is general and includes many known wavelet bases. At the same time, the method takes advantage a fast filterbank decomposition-reconstruction algorithm. We give necessary conditions for the scale-covariant operator to admit our wavelet construction, and we provide examples of new wavelets that can be obtained with our method.

AUTHOR="Khalidov, I. and Van De Ville, D. and Blu, T. and Unser, M.",
TITLE="Construction of Wavelet Bases That Mimic the Behaviour of Some
        Given Operator",
BOOKTITLE="Proceedings of the {SPIE} Conference on Mathematical Imaging:
        {W}avelet {XII}",
address="San Diego CA, USA",
month="August 26-29,",

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