3DFlowRenderer: One-shot Face Re-enactment via Dense 3D Facial Flow Estimation

• URL: http://arxiv.org/abs/2404.14667v1
• Date: Tue, 23 Apr 2024 01:51:58 GMT
• Title: 3DFlowRenderer: One-shot Face Re-enactment via Dense 3D Facial Flow Estimation
• Authors: Siddharth Nijhawan, Takuya Yashima, Tamaki Kojima,
• Abstract summary: We propose a novel warping technology which integrates the advantages of both 2D and 3D methods to achieve robust face re-enactment. We generate dense 3D facial flow fields in feature space to warp an input image based on target expressions without depth information. This enables explicit 3D geometric control for re-enacting misaligned source and target faces.
• Score: 2.048226951354646
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Performing facial expression transfer under one-shot setting has been increasing in popularity among research community with a focus on precise control of expressions. Existing techniques showcase compelling results in perceiving expressions, but they lack robustness with extreme head poses. They also struggle to accurately reconstruct background details, thus hindering the realism. In this paper, we propose a novel warping technology which integrates the advantages of both 2D and 3D methods to achieve robust face re-enactment. We generate dense 3D facial flow fields in feature space to warp an input image based on target expressions without depth information. This enables explicit 3D geometric control for re-enacting misaligned source and target faces. We regularize the motion estimation capability of the 3D flow prediction network through proposed "Cyclic warp loss" by converting warped 3D features back into 2D RGB space. To ensure the generation of finer facial region with natural-background, our framework only renders the facial foreground region first and learns to inpaint the blank area which needs to be filled due to source face translation, thus reconstructing the detailed background without any unwanted pixel motion. Extensive evaluation reveals that our method outperforms state-of-the-art techniques in rendering artifact-free facial images.

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