Research Article

Diffeomorphic Registration of Images with Variable Contrast Enhancement

Table 2

Results for the POPI experiment: error in landmark position.

RCCT phases Original Demons [4] Morphons D-Demons D-Morphons

Phase 1 0.5/0.5 (2.4) 1.3/0.3 (1.8) 0.7/0.3 (1.6) 0.7/0.3 (1.6) 0.7/0.3 (1.6)
Phase 2 0.5/0.6 (2.6) 1.4/0.2 (2.1) 0.7/0.4 (2.1) 0.7/0.4 (1.6) 0.7/0.4 (2.1)
Phase 3 2.2/1.8 (6.6) 1.4/0.4 (2.3) 1.2/0.6 (2.5) 1.2/0.6 (2.5) 1.2/0.6 (2.4)
Phase 4 4.3/2.5 (10) 1.2/0.4 (2.3) 1.0/0.4 (2.2) 1.0/0.5 (2.5) 1.0/0.4 (2.2)
Phase 5 5.8/2.6 (12) 1.3/0.5 (2.6) 1.1/0.5 (2.7) 1.1/0.5 (2.5) 1.1/0.5 (2.8)
Phase 6 6.1/2.9 (14) 1.1/0.4 (2.0) 1.0/0.5 (2.1) 1.1/0.6 (2.8) 1.0/0.5 (2.1)
Phase 7 5.0/2.3 (12) 1.3/0.5 (2.4) 1.1/0.6 (2.8) 1.2/0.6 (2.7) 1.1/0.6 (2.8)
Phase 8 3.7/1.6 (6.2) 1.1/0.3 (1.7) 0.8/0.4 (1.9) 0.8/0.4 (1.8) 0.8/0.4 (1.8)
Phase 9 2.1/1.1 (4.5) 1.1/0.3 (1.9) 0.8/0.4 (2.0) 0.8/0.4 (1.7) 0.8/0.4 (2.0)

All phases 3.3/2.0 (14) 1.2/0.4 (2.6) 0.9/0.5 (2.8) 1.0/0.5 (2.8) 0.9/0.5 (2.8)