Fig. 4.

Section normalization and loci propagation of the ROIs. A transfinite transformation is used to predict the position of an ROI (yellow dot) through consecutive sections at the level of the overview image. a Position of the ROI at a certain section i. b Transformation of the ROI position and section corners in a standard shape. c Prediction of the ROI in section i+1 is calculated from the corner positions at i+1 and the ROI position in the standard section