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. 2014 Apr 11;22(8):9517–9527. doi: 10.1364/OE.22.009517

Fig. 4.

Fig. 4

(a) Input pattern obtained subtracting two mutually π-phase shifted grid patterns, (b) input pattern after FABEMD adaptive band-pass filtering, (c)-(f) the FABEMD-HS results for reconstruction of optically sectioned images using two grid patterns phase-shifted by π/3, 2π/3, 4π/3 and 2π, respectively.