Fig. 6

Qualitative results for multi-modal registration a rigid registration, b deformable registration. The high contrast structures from CT (blue shade) are overlaid onto MRI. It can be observed that the bone structures are aligned with a rigid registration alone. A deformable registration around the prostate region helps align the prostate (red contour on CT and green contour on MRI) after deformable registration. The prostate region is zoomed in and shown in the inset