A multigrid approach to image processing

  • Authors:
  • Paul M. de Zeeuw

  • Affiliations:
  • CWI, Amsterdam, The Netherlands

  • Venue:
  • Scale-Space'05 Proceedings of the 5th international conference on Scale Space and PDE Methods in Computer Vision
  • Year:
  • 2005

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Abstract

A second order partial differential operator is applied to an image function. By using a multigrid operator known from the so-called approximation property, we derive a new type of multiresolution decomposition of the image. As an example, the Poisson case is treated in-depth. Using the new transform we devise an algorithm for image fusion. The actual recombination is performed on the image functions on which the partial differential operator has been applied first. A fusion example is elaborated upon. Other applications can be envisaged as well.