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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Neuroimage. 2012 May 24;62(3):1975–1986. doi: 10.1016/j.neuroimage.2012.05.042

Table 3.

The respective parameters and parameter-sampling strategies used for BET and BSE in the proposed meta-algorithm.

Methods Parameters Default Sampling Effects of larger value
BET -f (fractional intensity threshold) 0.5 0.1:0.05:0.8 Smaller brain outline
-g (vertical gradient) 0 −0.3:0.1:0.2 Larger brain outline at bottom
BSE -d (diffusion constant) 25 5:5:35 Blur across larger intensity differences
-s (edge detection constant) 0.62 0.5:0.05:0.8 Detect only wider edges
-r (erosion size) 1 1, 2 Break wider connections