A modified MI measure on 3D medical image registration
Peng Zhang · Journal of Shandong University · 2006
Medical image registration based on Mutual Information(MI) is a hot topic in registration research.The MI's formula is modified to reduce computing cost,and the replace of Powell's search direction is also rectified to reserve the original direction,Multi-resolution method is used in our registration test.The results show that the modified MI measure can reach sub-voxel precision,and the registration time is reduced (remarkably.)