Full length article: Singular integrals, scale-space and wavelet transforms

  • Authors:
  • Say Song Goh;Tim N. T. Goodman;S. L. Lee

  • Affiliations:
  • -;-;-

  • Venue:
  • Journal of Approximation Theory
  • Year:
  • 2013

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Abstract

The Gaussian scale-space is a singular integral convolution operator with scaled Gaussian kernel. For a large class of singular integral convolution operators with differentiable kernels, a general method for constructing mother wavelets for continuous wavelet transforms is developed, and Calderon type inversion formulas, in both integral and semi-discrete forms, are derived for functions in L^p spaces. In the case of the Gaussian scale-space, the semi-discrete inversion formula can further be expressed as a sum of wavelet transforms with the even order derivatives of the Gaussian as mother wavelets. Similar results are obtained for B-spline scale-space, in which the high frequency component of a function between two consecutive dyadic scales can be represented as a finite linear combination of wavelet transforms with the derivatives of the B-spline or the spline framelets of Ron and Shen as mother wavelets.