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Separable and nonseparable multiwavelets in multiple dimensions
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DOI：10.1006/jcph.2001.6743.png)
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摘要
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We report on a method of constructing multidimensional biorthogonal interpolating multiwavelets. The approach is based upon polynomial interpolation in R-d (C, de Boor and A. Ron, Math. Comput. 58, 198 (1997)) and an extension of the lifting scheme (J. Kovacevic and W. Sweldens, IEEE Trans. Image Process. 9, No. 3, 480 (2000)). The constructed wavelets have compact support, are nearly isotropic, and retain partial scale invariance leading to a fast and efficient multidimensional wavelet transform. We demonstrate an implementation for these wavelets of variable polynomial order up to four dimensions. Finally, we show that these wavelets have a much sparser representation of discontinuous functions as compared to tensor product wavelets, which allows for a more compact and efficient representation. (C) 2002 Elsevier Science (USA).
Keyword:
multiwavelets
multidimensional
lifting scheme
polynonimal interpolation
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3.8
论文数:
1.6W
被引数:
7.4W
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