Figure 2:

(a) Number of selected atlases with increasing τ (dynamic atlas attention index) using GWV and CT-radiodensity for five randomly selected patient scans, using fifteen atlases. Varying number of atlases are required for fusion to achieve a minimum similarity of τ=0.4. DSC comparison for Patients 1 and 5 for (b) spinal cord, (c) left parotid and (d) mandible with increasing τ demonstrate the difference in the number of atlases required for fusion to achieve high DSC accuracy.