Multimodality medical image registration based on mutual information and simulated annealing
Qian Zong · Di-Si Junyi Daxue xuebao · 2002
AIM To perform CT MR registration. METHODS A multimodality medical image registration method based on mutual information and simulated annealing was presented. When dealing with multimodality medical images, we, by using the basic conception of MI in information theory as the matching criterion and simulated annealing as optimizing guide line, searched the best matching parameter through maximization of MI. Through which transformation, the registraion could be achieved. RESULTS We applied this method to the 3D rigidity registration of CT and MR and achieved good result. CONCLUSION The method has high registration precision and robust quality, while simulated annealing algorithm overcomes the disadvantages that other searching methods easily get into local maxima. So this method is an efficient registration method.