Fig. 1From: Survey of methods and principles in three-dimensional reconstruction from two-dimensional medical imagesa Point cloud from CT of lungs; b Point cloud reconstructed from CT scans of rib cage (gray) and lungs (black); c Coarse liver reconstructed from 28 CT scans and triangulated using marching cubes algorithm; d Smooth liver surface triangulation of key points extracted from 56 CT scansBack to article page