Please request the dataset by following the instruction here.

Participants will be ranked according to  Dice Similarity Coefficient (DSC). However, for the completeness of scientific assessment, other metrics will be used, i.e. mean IoU (mIoU), False Negative Error and False Positive Error. In the case of ties, mIoU will be used to rank performance. In cases where all metrics are tied, the time stamp of the submission will be used for the ranking, and the earlier submission will have higher ranking.

Participants will be ranked on these final metrics.

Submissions should be mask image files named using the image id that the prediction relates to, with pixel-wise label set for background (0) and ulcer region (1).