中文说明：非刚性医学图像配准，基于B样条的自由形变配准算法（Free Form-Deformation ，FFD）。局部形变配准。相似度量多模态采用互信息（mutual Information，MI），单模态配准采用差方和（the Square sum of Difference）
English Description：
Non rigid medical image registration, based on B-spline free form deformation (FFD) registration algorithm. Local deformation registration. The similarity measure uses mutual information (MI) for multimodal registration and the square sum of difference for single-mode registration