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Contour matching using wavelet transform and multigrid methods

  • Jiang Tianzi 
  • Ma Songde 
Regular Papers
  • 23 Downloads

Abstract

In this paper, wavelet transform and multigrid method are combined to make the method more practical. It is known that Gaussian filtering causesshrinkage 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.

Keywords

Contour matching curvature wavelet transform multigrid method 

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Copyright information

© Science Press, Beijing China and Allerton Press Inc. 1997

Authors and Affiliations

  1. 1.School of MathematicsThe University of New South WalesSydneyAustralia
  2. 2.National Laboratory of Pattern Recognition, Institute of AutomationChinese Academy of SciencesBeijing

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