Research on Image Registration Technology Based on Mutual Information
Yin Zhang⋆ · 2012
Image registration based on mutual information(MI) has become an increasing popular match metric duing to it doesn't relay on the image's gray level and can realize automatic standerdising,multimodality medical image registration based on mutual information is deeply discussed mainly from the famework of registration,we have done the main reasearch of the method of image registration based on maximization of mutual information and used partial volume interpolation counted the value of column diagram,calculated the value of mutual information,analyzed its advantages and disadvantages.To speed up the rate of image registration and overcome the large calculation and the presence of local extremum of mutual information,we have focused on optimization strategy.based on discussing and analysing the common optimization strategy,we have put forward the improved optimization strategy.Because the common powell strategy dosen't regard to the problem of linear independence.this design used the improved powell strategy that can make the direction of search linear independence and increase the degree of adjoint.This design also make the PSO optimization strategy compare with powell strategy,finaly make the analysis through simulation.