Towards Real-World Blind Face Restoration with Generative Diffusion Prior

• URL: http://arxiv.org/abs/2312.15736v2
• Date: Mon, 18 Mar 2024 12:23:48 GMT
• Title: Towards Real-World Blind Face Restoration with Generative Diffusion Prior
• Authors: Xiaoxu Chen, Jingfan Tan, Tao Wang, Kaihao Zhang, Wenhan Luo, Xiaochun Cao,
• Abstract summary: Blind face restoration is an important task in computer vision and has gained significant attention due to its wide-range applications. We propose BFRffusion which is thoughtfully designed to effectively extract features from low-quality face images. We also build a privacy-preserving face dataset called PFHQ with balanced attributes like race, gender, and age.
• Score: 69.84480964328465
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Blind face restoration is an important task in computer vision and has gained significant attention due to its wide-range applications. Previous works mainly exploit facial priors to restore face images and have demonstrated high-quality results. However, generating faithful facial details remains a challenging problem due to the limited prior knowledge obtained from finite data. In this work, we delve into the potential of leveraging the pretrained Stable Diffusion for blind face restoration. We propose BFRffusion which is thoughtfully designed to effectively extract features from low-quality face images and could restore realistic and faithful facial details with the generative prior of the pretrained Stable Diffusion. In addition, we build a privacy-preserving face dataset called PFHQ with balanced attributes like race, gender, and age. This dataset can serve as a viable alternative for training blind face restoration networks, effectively addressing privacy and bias concerns usually associated with the real face datasets. Through an extensive series of experiments, we demonstrate that our BFRffusion achieves state-of-the-art performance on both synthetic and real-world public testing datasets for blind face restoration and our PFHQ dataset is an available resource for training blind face restoration networks. The codes, pretrained models, and dataset are released at https://github.com/chenxx89/BFRffusion.

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