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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Med Image Anal. 2017 Nov 23;44:41–53. doi: 10.1016/j.media.2017.11.010

Algorithm 2 Weighted Average of FOs

Input: FOs ω={ωr}r=1R to average; weights γ={γr}r=1R of the FOs; the current FO ωmp
Output: Averaged FO ω̄
1: ω̄ ← 0
2: for r = 1 : R do
3:  if ωrTωmp<0 then
4:   ωr ← −ωr
5:  end if
6:  ω̄ ← ω̄ + γrωr
7: end for
8: return
ω¯←ω¯‖ω¯‖2