2. Camera calibration
Internal camera parameters are orientation dependent
Use Tsai’s 11 parameter non-coplanar camera calibration scheme technique, retaining only f, Cx, Cy for each C-arm pose
- External camera parameters: Rx , Ry , Rz.
- Internal camera parameters:
- f - focal length
- Cx, Cy - image origin
- k radial distortion coeffficient
- s - image scale factor