3D Intelligent Scissors for Dental Mesh Segmentation

Abstract EN

Teeth segmentation is a crucial technologic component of the digital dentistry system.

The limitations of the live-wire segmentation include two aspects: (1) computing the wire as the segmentation boundary is time-consuming and (2) a great deal of interactions for dental mesh is inevitable.

For overcoming these disadvantages, 3D intelligent scissors for dental mesh segmentation based on live-wire is presented.

Two tensor-based anisotropic metrics for making wire lie at valleys and ridges are defined, and a timesaving anisotropic Dijkstra is adopted.

Besides, to improve with the smoothness of the path tracking back by the traditional Dijkstra, a 3D midpoint smoothing algorithm is proposed.

Experiments show that the method is effective for dental mesh segmentation and the proposed tool outperforms in time complexity and interactivity.