Figure 3
From: Anatomical evaluation of CT-MRI combined femoral model
The 3 points-to-3 points matching and the surface-to-surface matching. The 3 points-to-3 points matching was executed by registration the center points of reconstructed CT-derived ball markers to their corresponding center points of reconstructed MRI-derived ball markers. The surface-to-surface matching was executed by 3D/3D surface registration using the ICP algorithm.