一种三维表面重构中的轮廓集拼合新方法

A New Method of Merging Contoure Groups in 3D Surface Reconstruction

针对切片级三维表面重构中的难点,提出了一种拼合轮廓集的新方法通过对待拼合的轮廓集首尾轮廓进行平面三角剖分方向的判别,将空间轮廓集拼合的三维问题转化为平面多连通域三角剖分的二维问题,并改进了现有的平面多连通域三角剖分算法,巧妙地解决了切片级重构中的轮廓分支对应问题。实验表明,该方法能准确完成复杂轮廓集的表面拼合,具有良好的适应性。

To resolve the problems in slice-based surface reconstruction, a new method of merging contoure groups is proposed in this paper. Through distinguishing the planar triangulation direction of the head and tail contours in contoure groups which would be merged, the 3D matter of merging contoure groups is transformed into the 2D matter of arbitrary planar domain triangulation. And the arbitrary planar domain triangulation algorithm in existence is improved. So the problem of contour diverging and pairing in slice-based surface reconstruction is skillfully solved. The experiment indicates that the complex contoure groups can good adaptability. be merged accurately by the method. Therefore the method has