If you have 3D data instead of 2D rasters, you can not only apply the same filtering techniques but also use the Fourier transform to do volume rendering! https

If you have 3D data instead of 2D rasters, you can not only apply the same filtering techniques but also use the Fourier transform to do volume rendering! https://graphics.stanford.edu/papers/fourier/Levoy_GI92_VolumeRendering.pdf https://graphics.stanford.edu/papers/fourier/Levoy_GI92_Volu...