Jul 2026
Med-OPD: Improving Medical Vision-Language Models via Evidence-Aware On-Policy Distillation
Experiments on OmniMedVQA subsets show that Med-OPD consistently outperforms SFT and standard OPD across CT, MRI, Disease Diagnosis, and Lesion Grading, and demonstrate that evidence-aware distillation can better strengthen medical VLMs'reliance on key visual evidence and improve reliable multimodal medical reasoning.
Yun-Hang Qian, Jiaquan Yu, Jiawei Liu et al.
· arXiv.org · 1 citation