Objective: to investigate the X-rayprojectionof acetabulum on its anterior and posterior column and to develop a safe area for screw placement.
目的：探讨髋臼在其前、后柱上的投影和螺钉放置的安全范围。
2
Objective To establish 3D coronary artery motion tracking by the images of double plane X-rayprojection and 3D CT volume sequence.
目的利用双平面X射线投影图像序列和参考CT容积图像进行冠状动脉的三维运动跟踪建模。
3
Then geometrical transformation matrix between views is obtained based on perspective projection model for X-ray angiography system, and 3D coordinate of spatial points are calculated.