3D–2D registration in mobile radiographs: algorithm development and preliminary clinical evaluation.

@article{Otake20153D2DRI,
  title={3D–2D registration in mobile radiographs: algorithm development and preliminary clinical evaluation.},
  author={Yoshito Otake and A. S. Wang and Ali Uneri and Gerhard Kleinszig and Sebastian Vogt and N Aygun and Sheng-fu Larry Lo and Jean-Paul Wolinsky and Ziya L. Gokaslan and Jeffrey H. Siewerdsen},
  journal={Physics in medicine and biology},
  year={2015},
  volume={60 5},
  pages={2075-90}
}
An image-based 3D-2D registration method is presented using radiographs acquired in the uncalibrated, unconstrained geometry of mobile radiography. The approach extends a previous method for six degree-of-freedom (DOF) registration in C-arm fluoroscopy (namely 'LevelCheck') to solve the 9-DOF estimate of geometry in which the position of the source and detector are unconstrained. The method was implemented using a gradient correlation similarity metric and stochastic derivative-free… CONTINUE READING

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