This paper is focused to noise suppression as a postprocessing technique for biomedical MRI images. Attention has been paid to the method ability to maintain fine details in the images during noise removal. Thus, the purpose has been to seek a proper procedure for recovering both sharp edges and smooth surfaces from a given, noisy, MRI image. We proposed a novel filtering procedure based on Sobel edge detection and wavelet noise reduction filters. Experimental results, demonstrating the good performances of the proposed filtering procedure, have also been reported.
Noise removal filter for MRI images based on Sobel edge detection and wavelets analysis
PLACIDI, GIUSEPPE;ALECCI, MARCELLO;
2002-01-01
Abstract
This paper is focused to noise suppression as a postprocessing technique for biomedical MRI images. Attention has been paid to the method ability to maintain fine details in the images during noise removal. Thus, the purpose has been to seek a proper procedure for recovering both sharp edges and smooth surfaces from a given, noisy, MRI image. We proposed a novel filtering procedure based on Sobel edge detection and wavelet noise reduction filters. Experimental results, demonstrating the good performances of the proposed filtering procedure, have also been reported.File in questo prodotto:
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