Kinematic Analysis of Healthy Hips during Weight-Bearing Activities by 3D-to-2D Model-to-Image Registration Technique

Figure 2

The hip motions (a) were captured as continuous X-ray images using a flat panel X-ray detector (b). CT slices (c) were reconstructed to the density-based digitally reconstructed radiograph (d) and projected onto radiographic images (e). The 6 degrees of freedom of the pelvis and femur were determined by 3D-to-2D model-to-image registration technique using image correlations.