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Volume 12 Issue 6
November  1997
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Jiang Tianzi, Ma Songde. Contour Matching Using Wavelet Transform and Multigrid Methods[J]. Journal of Computer Science and Technology, 1997, 12(6): 564-570.
Citation: Jiang Tianzi, Ma Songde. Contour Matching Using Wavelet Transform and Multigrid Methods[J]. Journal of Computer Science and Technology, 1997, 12(6): 564-570.
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Contour Matching Using Wavelet Transform and Multigrid Methods

  • School of Mathematics; The University of New South Wales Sydney 2052; Australia; National Labomtory of Pattern Recognition; Institute of Automation Chinese Academy of Sciences; Beijing 100080 E-mail: jiangtz@maths.unsw.EDU.AU a;

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  • Published Date: November 09, 1997
    Abstract
  • In this paper, wavelet transform and multigrid method are combined to make the method more practical. It is known that Gaussian filtering causes shrinkage of data. To overcome this disadvantage, Gaussian filtering is replaced with wavelet transform. This method introduces no curve shrinkage. Then, the linearized form of objective equation is proposed. This makes contour matching easier to implement. Finally, the multigrid method is used to speed up the convergence.
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    • References (2)
  • [1]
    Yuille A L, Poggio T. Scaling theorem for zero crossing. IEEE Trans.Pattern Anal. Machine Intell., 1986, PAMI-8(1): 15-25.
    [2]
    Mokhtarian F, Mackworth A. Scale-based description and recognition of planar curves and two-dimension shapes. IEEE Trans.Pattern Anal. Machine Intell., 1986, PAMI-8(1): 34-43. ………..
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