BFSM: 3D Bidirectional Face-Skull Morphable Model

Fuente: arXiv
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Main Authors: Wang, Zidu, Xu, Meng, Xu, Miao, Ma, Hengyuan, Zhao, Jiankuo, Li, Xutao, Zhu, Xiangyu, Lei, Zhen
Format: Preprint
Published: 2025
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author Wang, Zidu
Xu, Meng
Xu, Miao
Ma, Hengyuan
Zhao, Jiankuo
Li, Xutao
Zhu, Xiangyu
Lei, Zhen
author_facet Wang, Zidu
Xu, Meng
Xu, Miao
Ma, Hengyuan
Zhao, Jiankuo
Li, Xutao
Zhu, Xiangyu
Lei, Zhen
contents Building a joint face-skull morphable model holds great potential for applications such as remote diagnostics, surgical planning, medical education, and physically based facial simulation. However, realizing this vision is constrained by the scarcity of paired face-skull data, insufficient registration accuracy, and limited exploration of reconstruction and clinical applications. Moreover, individuals with craniofacial deformities are often overlooked, resulting in underrepresentation and limited inclusivity. To address these challenges, we first construct a dataset comprising over 200 samples, including both normal cases and rare craniofacial conditions. Each case contains a CT-based skull, a CT-based face, and a high-fidelity textured face scan. Secondly, we propose a novel dense ray matching registration method that ensures topological consistency across face, skull, and their tissue correspondences. Based on this, we introduce the 3D Bidirectional Face-Skull Morphable Model (BFSM), which enables shape inference between the face and skull through a shared coefficient space, while also modeling tissue thickness variation to support one-to-many facial reconstructions from the same skull, reflecting individual changes such as fat over time. Finally, we demonstrate the potential of BFSM in medical applications, including 3D face-skull reconstruction from a single image and surgical planning prediction. Extensive experiments confirm the robustness and accuracy of our method. BFSM is available at https://github.com/wang-zidu/BFSM
format Preprint
id arxiv_https___arxiv_org_abs_2509_24577
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle BFSM: 3D Bidirectional Face-Skull Morphable Model
Wang, Zidu
Xu, Meng
Xu, Miao
Ma, Hengyuan
Zhao, Jiankuo
Li, Xutao
Zhu, Xiangyu
Lei, Zhen
Computer Vision and Pattern Recognition
Building a joint face-skull morphable model holds great potential for applications such as remote diagnostics, surgical planning, medical education, and physically based facial simulation. However, realizing this vision is constrained by the scarcity of paired face-skull data, insufficient registration accuracy, and limited exploration of reconstruction and clinical applications. Moreover, individuals with craniofacial deformities are often overlooked, resulting in underrepresentation and limited inclusivity. To address these challenges, we first construct a dataset comprising over 200 samples, including both normal cases and rare craniofacial conditions. Each case contains a CT-based skull, a CT-based face, and a high-fidelity textured face scan. Secondly, we propose a novel dense ray matching registration method that ensures topological consistency across face, skull, and their tissue correspondences. Based on this, we introduce the 3D Bidirectional Face-Skull Morphable Model (BFSM), which enables shape inference between the face and skull through a shared coefficient space, while also modeling tissue thickness variation to support one-to-many facial reconstructions from the same skull, reflecting individual changes such as fat over time. Finally, we demonstrate the potential of BFSM in medical applications, including 3D face-skull reconstruction from a single image and surgical planning prediction. Extensive experiments confirm the robustness and accuracy of our method. BFSM is available at https://github.com/wang-zidu/BFSM
title BFSM: 3D Bidirectional Face-Skull Morphable Model
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2509.24577