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Filtered widefield result (a), SIM results with the auto-correlation (b), cross-correlation (c), and inverse matrix (d) based phase estimation methods. The profile along the line segment in each subfigure is shown in (e). The profile was normalized by the corresponding maximum along each line segment. COS-7 cells were used in this experiment. Abbreviation: WF, widefield; AC, auto-correlation method; CC, cross-correlation method; IM, inverse matrix based method.
