Fig. 5.
Representative displacement field patches from registering the XCAT images. The pink border in the top image shows the input sliding boundary. The diffusive regularization overestimates motion at the chest wall (yellow arrow) and mediastinum (yellow circle), while the displacement field from the sliding organ regularization shows sliding at these interfaces. Displacement vectors are from the target image (inhale) to the moving image (exhale), colored by displacement magnitude (mm).