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.
Ardizzone, E., Pirrone, R., Gallea, R., Gambino, O. (2008). Noise Filtering Using Edge-Driven Adaptive Anisotropic Diffusion. In IEEE International Symposium on Computer-Based Medical Systems (pp.29-34). Los Alamitos, CA : IEEE Computer Society [10.1109/CBMS.2008.31].
Noise Filtering Using Edge-Driven Adaptive Anisotropic Diffusion
ARDIZZONE, Edoardo;PIRRONE, Roberto;GALLEA, Roberto;GAMBINO, Orazio
2008-01-01
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.
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