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Table 2 Performance on simulated images of cells with intracellular fibrillar structures

From: CytoSpectre: a tool for spectral analysis of oriented structures on cellular and subcellular levels

  Error mean ± std Normalized error mean ± std Pearson’s r
Mean orientation 1.8128° ± 7.1196° - -
Circular variance −0.0119 ± 0.1427 −0.0119 ± 0.1427 0.5305
Angular std 0.0149 ± 0.1982 0.0106 ± 0.1401 0.5414
Circular skewness 0.0008 ± 0.0311 0.0015 ± 0.0616 0.3432
Circular kurtosis −0.0509 ± 0.1808 −0.0453 ± 0.1609 0.6500
Wavelength, mean 0.3886 μm ± 0.5756 μm 0.3809 ± 0.5642 0.1681
Wavelength, median 0.2109 μm ± 0.5283 μm 0.2020 ± 0.5061 0.1978
Wavelength, mode 0.0061 μm ± 0.2002 μm 0.0054 ± 0.1778 0.7817
Wavelength, std 0.4912 μm ± 0.4384 μm 2.2042 ± 1.9671 0.0936
  1. Errors (mean ± standard deviation) and Pearson’s linear correlation coefficient between true and estimated values for non-degraded simulated images of the fibril dataset (N = 996) are shown for each parameter. Normalized errors were obtained by dividing the errors by the full range of true values. The normalized error and linear correlation coefficient are not applicable to the mean orientation. Mean orientation error is given as absolute error in degrees