5. Reconstruction
5.1 Overview of reconstruction
3D models shall be made by stacking serial segmented images. Volume 3D models were made as follows:
the segmented images were simultaneously expanded onto the next images to build several small volume
models, referred to as volume reconstruction. Finally, all volume models were combined. From the
combined volume models, a surface model was extracted, which was referred to as the surface
reconstruction. Generally, the volume and surface reconstructions were simultaneously performed on
reconstruction software. The resulting surface model consisted of the original stacked outlines and
numerous triangular surfaces between the outlines (see Figure 11).