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ENH: N4 improvements - #69

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eilidhmacnicol merged 4 commits into
nipreps:mainfrom
eilidhmacnicol:enh/n4_improvements
Apr 30, 2026
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ENH: N4 improvements#69
eilidhmacnicol merged 4 commits into
nipreps:mainfrom
eilidhmacnicol:enh/n4_improvements

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@eilidhmacnicol

@eilidhmacnicol eilidhmacnicol commented Apr 30, 2026

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N4 has:

  • switched from setting a B-spline grid to a fitting distance
  • reduced the number of iterations to stop overfitting

Also stopped top-end clipping of the input after denoise because it was causing loss of meaningful but hyper-intense tissue signal nearest the coil

@eilidhmacnicol
eilidhmacnicol merged commit c621e17 into nipreps:main Apr 30, 2026
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eilidhmacnicol deleted the enh/n4_improvements branch April 30, 2026 15:05
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