DArch: Dental Arch Prior-assisted 3D Tooth Instance Segmentation. (arXiv:2204.11911v1 [cs.CV])

Automatic tooth instance segmentation on 3D dental models is a fundamental
task for computer-aided orthodontic treatments. Existing learning-based methods
rely heavily on expensive point-wise annotations. To alleviate this problem, we
are the first to explore a low-cost annotation way for 3D tooth instance
segmentation, i.e., labeling all tooth centroids and only a few teeth for each
dental model. Regarding the challenge when only weak annotation is provided, we
present a dental arch prior-assisted 3D tooth segmentation method, namely
DArch. Our …

3d arch arxiv cv dental prior segmentation