ROFI: a deep learning-based ophthalmic sign-preserving and reversible patient face anonymizer.

Tian, Yuan; Zhou, Min; Chen, Yitong; Li, Fang; Qi, Lingzi; Wang, Shuo; Xu, Xieyang; Yu, Yu et al. · NPJ Digit Med · 2025

basic_science · Level V

Where this comes from

Abstract

Patient face images provide a convenient mean for evaluating eye diseases, while also raising privacy concerns. Here, we introduce ROFI, a deep learning-based privacy protection framework for ophthalmology. Using weakly supervised learning and neural identity translation, ROFI anonymizes facial features while retaining disease features (over 98% accuracy, κ > 0.90). It achieves 100% diagnostic sensitivity and high agreement (κ > 0.90) across eleven eye diseases in three cohorts, anonymizing over 95% of images. ROFI works with AI systems, maintaining original diagnoses (κ > 0.80), and supports secure image reversal (over 98% similarity), enabling audits and long-term care. These results show ROFI's effectiveness of protecting patient privacy in the digital medicine era.