Biomedical Engineering Reference
In-Depth Information
Table 3.
Deformable Registration Error Statistics
for Landmark Points in the Real Tumor
(RT) and Simulated Tumor (ST) Cases
Minimum Mean Maximum Standard Deviation
RT no Model, mm
1.06
8.70
24.87
6.19
RT with Model, mm
0.47
3.69
7.19
1.83
ST no Model, mm
2.54
6.39
10.91
2.62
ST with Model, mm
0.61
3.90
7.79
2.01
For each case, the errors are provided for the direct deformable image registration to the atlas (no
model), and the registration using the approach described in this work (with model). 21 landmark
points were used for RT and 25 for ST.
Figure 23.
Three orthogonal 2D images of the atlas and the simulated tumor subject before
and after deformable registration. Some labels associated with the atlas image are warped
and superimposed on the subject's images. Left to right: atlas image with all labels; atlas
image with five selected labels; subject's image; subject's image with superimposed labels
warped from the atlas via direct deformable registration between the two images; and the
subject's image with superimposed labels warped from the atlas via the proposed approach.
The five selected labels are the same as those shown in Figure 21 for the real tumor case.
Copyright c
2006, Elsevier B. V. See attached CD for color version.
