Steps of the applied segmentation: a) normalized emerging intensity and b) vertical velocity on the τ₁-iso-surface of the ANTARES simulation, c) initial vertical velocity threshold applied to the vertical velocity on the τ₁-iso-surface, d) subsequent lower threshold applied to the structure, e) lowest threshold applied to the structure, f) edge detection applied to the emerging intensity of the object, g) granular cells still connected by pixels after applying of the lowest threshold, h) morphological opening to separate connected granular cells, i) final segmentation mask.