Study on the Method of Medical Rigid Image Registration Based on Mutual Information
Jia‐Qi Huang · Zhongguo yixue wulixue zazhi · 2011
Objective: Registration method based on mutual information is an important method in the field of medical image registration,which is accepted as the most robust and accurate.To explore the effective algorithm and the key technology of medical rigid image registration in this paper.Methods: The registration approach was based on mutual information.We used the multi-parameters Powell algorithm and the improved Partial Volume Distribution interpolation algorithm.The maximum of mutual information and the best registration parameters of between the two images were obtained.Results: A registration experiment for two dimensional CT image of the jawtooth shows that the registration speed is faster and precision is improved.The interpolation method has been verified.Conclusions: The method and algorithm can improve the speed of the registration and avoid the local extremum problem of objective function of mutual information effectively.