医学断层图像三维重建的辅助轮廓线法

在原有的轮廓线基础上生成与之相似的辅助轮廓线．然后把各轮廓线三角化形成一层层的三角面片，最后按一定的规则把各层三角面片从外到内直接连接形成四面体，从而完成三维重构．文中算法尤其适合基于断层轮廓线的医学图象三维重构，与已有的三维重构法（如MC．MT，Delaunay四面体化）相比，具有算法简单、思路自然、易于实现的特点．

Auxiliary Contour Method for 3D Reconstruction of Medical Slice Images

In the approach proposed in the paper for 3D reconstruction from medical images, we create the auxiliary contour resembling the original contour first, then from outside inwards construct multiple layers of triangles based on the complete contours, and the triangles are linked into tetrahedron finally. By this approach, tetrahedron can be directly constructed from the slice contours, and the method is especially suitable for the 3D medical objects reconstruction based on the slice contour. In comparison with other 3D reconstruction algorithm such as MC, MT, Delaunay tetrahedralization, our approach is simple and easily to be implemented.