Medical Image Registration Using Equivalent Meridian Plane and Mutual Information
Lu Zhen · Chinese Journal of Computers · 2009
This paper presents a new robust and fast 3-D image registration method based on the equivalent meridian plane(EMP)and mutual information(MI).Comparing with traditional MI based registration methods that estimate the MI using the whole volume intensity information,our approach uses the 2D plane — Equivalent meridian plane's information.A novel aspect of our approach is using principal component analysis to find the equivalent meridian plane,and then compute its MI.We evaluate the effectiveness of the EMP-MI approach by applying it to the simulated and real brain image data.The experimental results indicate that the algorithm is effective in reducing computation time as well as in helping to avoid local minima.