Non-rigid Registration of Multimodality Medical Images Based on ITK
LU Hong-bing · Chinese Medical Equipment Journal · 2011
Objective To realize and analyze the registration of multimodality and non-rigid images by Insight Toolkit(ITK).Methods Based on basic frame of medical image registration and non-rigid registration of multi-mode medical image,the functions of all modules in the registration were studied.Also,it's introduced how the modules worked in the registration frame.The normalized mutual information model was integrated with improved Partial Volume Interpolation model,and Blackman-Harris Window kernel function was used for multimodality image registration.The model of Free-Form Deformation(FDD) based on B-spline and the optimizer named Limited memory(LBFGS) were used to accommodate non-rigid image transformation.Results The registration of liver MR and CT images was tested by the ITK.Conclusion Experimental data shows the validity of the proposed metho.