Noise Filtering Using Edge-Driven Adaptive Anisotropic Diffusion

  • Authors:

  • Roberto Gallea;Edoardo Ardizzone;Roberto Pirrone;Orazio Gambino

  • Affiliations:

  • -;-;-;-

  • Venue:
  • CBMS '08 Proceedings of the 2008 21st IEEE International Symposium on Computer-Based Medical Systems
  • Year:
  • 2008

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Abstract

This paper presents a method aimed to noise removal in MRI (Magnetic Resonance Imaging). We propose an improvement of Perona and Malik's anisotropic diffusion filter. In our schema, the diffusion equation of the filter has been modified to take into account the edges direction. This allows the filter to blur uniform areas, while it better preserves the edges. Both quantitative and qualitative evaluation is presented and the results are compared with other methods.