I was just wondering if anyone could explain to me the approach one would take to removing striped noise from the fourier domain of an image. I was reading an article about MRI image from 1 just giving a general outline of the location of spatial frequencies, and it had a slide (displayed below) which got me thinking in how I would attempt to remove the striped noise.

My original thought was to just block the given frequency with a mask but if I set the mask to 0 then I would have to be pretty accurate with the mask so I dont block out any other components that may be necessary for the image.

My second idea which I am not sure on is as each point the frequency domain is represented by phase and a modulus could I somehow use that to remove the striped noise?

enter image description here

1 http://mriquestions.com/locations-in-k-space.html



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