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ROFI: A Deep Learning-Based Ophthalmic Sign-Preserving and Reversible Patient Face Anonymizer

2025-10-13 07:12:23
Yuan Tian, Min Zhou, Yitong Chen, Fang Li, Lingzi Qi, Shuo Wang, Xieyang Xu, Yu Yu, Shiqiong Xu, Chaoyu Lei, Yankai Jiang, Rongzhao Zhang, Jia Tan, Li Wu, Hong Chen, Xiaowei Liu, Wei Lu, Lin Li, Huifang Zhou, Xuefei Song, Guangtao Zhai, Xianqun Fan

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, $\kappa > 0.90$). It achieves 100\% diagnostic sensitivity and high agreement ($\kappa > 0.90$) across eleven eye diseases in three cohorts, anonymizing over 95\% of images. ROFI works with AI systems, maintaining original diagnoses ($\kappa > 0.80$), 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.

Abstract (translated)

患者面部图像为评估眼科疾病提供了一种便捷的方法,同时也引发了隐私方面的担忧。在这里,我们介绍了ROFI,这是一个基于深度学习的眼科隐私保护框架。通过弱监督学习和神经身份翻译技术,ROFI能够在去除非必要面部特征的同时保留疾病的特征(超过98%的准确性,$\kappa > 0.90$)。在三个不同队列中的十一种眼科疾病上,ROFI实现了100%的诊断敏感度,并且具有高度的一致性($\kappa > 0.90$),同时去除了超过95%图像中的非必要面部信息。此外,该框架能够与AI系统兼容,保持原始诊断结果($\kappa > 0.80$),并支持安全的图像恢复功能(相似度超过98%),从而允许进行审核和长期跟踪护理。这些结果显示了ROFI在数字医疗时代有效保护患者隐私方面的效果。

URL

https://arxiv.org/abs/2510.11073

PDF

https://arxiv.org/pdf/2510.11073.pdf


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