On The Usage Of Average Hausdorff Distance For Segmentation Performance Assessment: Hidden Bias When Used For Ranking

Understand

Average Hausdorff Distance (AVD) is a widely used performance measure to calculate the distance between two point sets.

• In medical image segmentation, AVD is used to compare ground truth images with segmentation results allowing their ranking.
• We identified, however, a ranking bias of AVD making it less suitable for segmentation ranking.
• To mitigate this bias, we present a modified calculation of AVD that we have coined balanced AVD (bAVD).