Fracture interactive geodesic active contours for bone segmentation
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arXiv
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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918280514502656 |
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| author | Wang, Liheng Zhang, Licheng Xu, Hailin Zhao, Jingxin Su, Xiuyun Li, Jiantao Tang, Miutian Gao, Weilu Chen, Chong |
| author_facet | Wang, Liheng Zhang, Licheng Xu, Hailin Zhao, Jingxin Su, Xiuyun Li, Jiantao Tang, Miutian Gao, Weilu Chen, Chong |
| contents | For bone segmentation, the classical geodesic active contour model is usually limited by its indiscriminate feature extraction, and then struggles to handle the phenomena of edge obstruction, edge leakage and bone fracture. Thus, we propose a fracture interactive geodesic active contour algorithm tailored for bone segmentation, which can better capture bone features and perform robustly to the presence of bone fractures and soft tissues. Inspired by orthopedic knowledge, we construct a novel edge-detector function that combines the intensity and gradient norm, which guides the contour towards bone edges without being obstructed by other soft tissues and therefore reduces mis-segmentation. Furthermore, distance information, where fracture prompts can be embedded, is introduced into the contour evolution as an adaptive step size to stabilize the evolution and help the contour stop at bone edges and fractures. This embedding provides a way to interact with bone fractures and improves the accuracy in the fracture regions. Experiments in pelvic and ankle segmentation demonstrate the effectiveness on addressing the aforementioned problems and show an accurate, stable and consistent performance, indicating a broader application in other bone anatomies. Our algorithm also provides insights into combining the domain knowledge and deep neural networks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_14817 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fracture interactive geodesic active contours for bone segmentation Wang, Liheng Zhang, Licheng Xu, Hailin Zhao, Jingxin Su, Xiuyun Li, Jiantao Tang, Miutian Gao, Weilu Chen, Chong Computer Vision and Pattern Recognition Numerical Analysis 68U10, 94A08 For bone segmentation, the classical geodesic active contour model is usually limited by its indiscriminate feature extraction, and then struggles to handle the phenomena of edge obstruction, edge leakage and bone fracture. Thus, we propose a fracture interactive geodesic active contour algorithm tailored for bone segmentation, which can better capture bone features and perform robustly to the presence of bone fractures and soft tissues. Inspired by orthopedic knowledge, we construct a novel edge-detector function that combines the intensity and gradient norm, which guides the contour towards bone edges without being obstructed by other soft tissues and therefore reduces mis-segmentation. Furthermore, distance information, where fracture prompts can be embedded, is introduced into the contour evolution as an adaptive step size to stabilize the evolution and help the contour stop at bone edges and fractures. This embedding provides a way to interact with bone fractures and improves the accuracy in the fracture regions. Experiments in pelvic and ankle segmentation demonstrate the effectiveness on addressing the aforementioned problems and show an accurate, stable and consistent performance, indicating a broader application in other bone anatomies. Our algorithm also provides insights into combining the domain knowledge and deep neural networks. |
| title | Fracture interactive geodesic active contours for bone segmentation |
| topic | Computer Vision and Pattern Recognition Numerical Analysis 68U10, 94A08 |
| url | https://arxiv.org/abs/2509.14817 |