Objective To establish 3D coronary artery motion tracking by the images of double plane X-ray projection 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。
Objective: to investigate the X-ray projection of 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。
Other modalities are used in radiography when traditional projection X-ray cannot image what doctors want to see.
其他方式使用放射时，传统投影X射线无法医生希望看到的影像。
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.
然后根据冠脉造影系统的透视投影模型得到两幅不同角度的造影图像之间的几何变换关系，以及空间点三维坐标的计算方法。
Because of the limitation in the projection Angle of the original support, the X-ray apparatus can not take photographs for patients in recumbent position.
原有支架结构限制了投照角度可调范围，不能给卧姿伤病员摄片。
Because of the limitation in the projection Angle of the original support, the X-ray apparatus can not take photographs for patients in recumbent position.
原有支架结构限制了投照角度可调范围，不能给卧姿伤病员摄片。
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