Improving the registration stability of cone-beam computed tomography with the Sphere-Mask Optical Positioning System: a feasibility study

Yan Zhang, Han Zhou, Yanan Jiang, Chuanfeng Wu, Yun Ge, Guoping Shan, Kaiyue Chu, Jundong Zhou, Jing Cai, Jianhua Jin, Ying Chen, Xiaolin Huang