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. 2016 Jun 15;11(6):e0156942. doi: 10.1371/journal.pone.0156942

Table 1. Input parameters of the algorithm.

Algorithm step Parameter Default value
General Average cell diameter: The expectation value of the cell diameter 12 μm
2D segmentation maxz-range: Threshold on the range-filtered height view Calculated from the histogram of the range-filtered height view.
rrange: Neighborhood radius for the range filter 3 μm (one-fourth of the cell diameter)
minMIP: threshold on the mean intensity value of the spheroids Mean of the background intensity of the MIP
3D ellipsoid approximation minradius: The z-dimension of spheroids with radii below this threshold is put to the mean radius in the plane instead of determined from the 3D signal. 24 μm
Attenuation Intensity attenuation percentage (threshold): The minimal percentage of the signal that has to be retained to be analyzable 50%
Spot detection Maximal spot radius: Maximal expected spot radius, larger spots are split 8 μm (average nucleus diameter)
Average spot radius: Scale for the spot detection Optimal scale calculated from the LoG of the MIP