Reconstruction of 3D Vertebral Models from a Single 2D Lateral Fluoroscopic Image - Spinal Imaging and Image Analysis - page 355

Fig. 9 Color-coded reconstruction error distribution. Left column error bar; middle column the
ground truth models with the color-coded error distributions; right column the reconstructed
models after surface-based iterative affine registrations were used to recover the unknown scale
factors of the associated vertebrae

methods introduced by Benameur et al. [ 12 , 13 ] lies in the optimization techniques
that were used to reconstruct a patient-speci c surface model. More speci cally, in

Benameur et al. [ 12 , 13 ] a PDM of scoliotic vertebrae was fitted to two calibrated X-

ray radiographs by simultaneously optimizing both the shape and the pose parameters
while in this investigation we sequentially optimized the shape and the pose