K2S Challenge Evaluation Metrics

  • Segmentation performance will be evaluated using the Dice Similarity Coefficient (DSC). A python script for evaluating model performance can be downloaded here.
  • Ranking will be based on the overall score: weighted dice, with weights inversely proportional to the size (volume) of each anatomical structure (cartilage, bone).
  • A score of zero will be assigned to those with missing results.
  • Reconstruction will not be evaluated. Participants may choose to develop a segmentation model directly from the undersampled k-space or image reconstruction as an intermediate step.