Fig. 9

Means (mean ∆S) and 6σ-intervals (6σ ∆S) of the surface deviation between direct segmentation results and print-STLs caused by smoothing of three different levels. l: low, m: medium, h: high. The symbols and their color indicate the slice thickness of the DICOM datasets underlying the segmentations (0.4, 1.5 and 5.0 mm), which were then smoothed to determine the DEE. A more detailed analysis of the effects caused by smoothing is shown in Fig. 17