Fig. 7.

The gold standard and automated reconstructions (T1–T3) of a hippocampal CA3 interneuron dendrite submitted in the Qualifier Round of the DIADEM Challenge. The qualitative score, interaction time, and DIADEM metric for each reconstruction exemplify how various errors can impact different scoring methods. On this small tree, T1 received a low DIADEM metric score due to unsmoothed paths which inflated path length (zoom box) causing path length error to surpass the threshold. A smoothed path or more lenient path length threshold would result in a higher score more consistent with human expert judgment which ignores the effect of the jagged path. In T3, too many excess nodes resulted in low scores for all measures.