Shape reconstruction from cross-sections based on free-form deformations

We have described a simple approach which introduces free-form deformation to the problem of reconstruction from parallel slices. The approach has the unique ability to handle the non-convex contours, and can establish one-to-one correspondences for the vertices in adjacent contours. The approach consists of three main steps. First, we compute the arrangement of the input slices. Then for each pair of slices we use the free-form deformation to establish the correspondence between the adjacent contours. Finally we stitch the contours together based on the correspondence. Experimental results show that our framework performs well and that can handle complicated situations.