@article{li2026contrastive,
  title = {Contrastive Discrepancy: A label-free metric for deformable image registration supporting testing-time hyperparameter selection},
  journal = {Medical Image Analysis},
  volume = {113},
  pages = {104210},
  year = {2026},
  doi = {10.1016/j.media.2026.104210},
  url = {https://www.sciencedirect.com/science/article/pii/S1361841526002793},
  author = {Xia Li and Jihe Li and Weijie Wang and Xiang Liu and Jiquan Yuan and Xixin Cao and Joachim M. Buhmann and Jianqi Sun},
  keywords = {Deformable image registration, Evaluation metric, Label-free evaluation, Hyperparameter tuning, Model selection}
}