I've created a head surface out of an MRI scan. Due to noises in the scan, some parts of the surface are noisy, mostly around the chin:

enter image description here

Any idea how I can fix that? I'm trying different smoothing modifiers, meanwhile without a success. Here is the result of Smooth Vertex with Smoothing factor of 1.0 and 30 repeats:

enter image description here


  • 1
    $\begingroup$ it looks like you can have good results if you select the parts then W > Smooth and put the Smooth factor at 1 on the bottom of the T panel, do it several times (or increase Repeat factor) $\endgroup$
    – moonboots
    Sep 7, 2018 at 19:34
  • $\begingroup$ Thanks @moonboots, it helped a little bit. I've added a screenshot of the results. $\endgroup$
    – Noam Peled
    Sep 7, 2018 at 19:48
  • 2
    $\begingroup$ You are probably better off smoothing it by hand using sculpt mode. Enable dynamic topology, use the snake hook brush if needed. $\endgroup$
    – Omar Emara
    Sep 7, 2018 at 20:16
  • 1
    $\begingroup$ Probably it would be more efficient to remove noise formed with unnecessary vertices from the point cloud prior to converting to mesh, however that is out of Blender scope. Given mesh above there are several ways to smooth it, dynamic topology might be indeed the best one $\endgroup$
    – Mr Zak
    Sep 8, 2018 at 0:35


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