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2D-3D Medical Image Registration Based on Mutual Information

LIANG Wei, BAO Xu-dong, LUO Li-min(Biomedical Engineering Department, Southeast University, Nanjing 210096,China)  
A 2D-3D medical image registration method based on mutual information is described. This method is applied to the rigidity registration of X-ray fluoroscopy(simulated by DRR) and CT. After preprocessing of the 3-D data,by changing the incidence angle of ray tracking, the 2D-3D registration can be done by matching the reconstructed DRR images, and this attempt receivs good result.
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