Medical Image Registration Based on Extraction of Available Areas and Maximal Mutual Information
Xin Sun · Journal of Qingdao University · 2007
This paper proposes an algorithm of medical image registration based on extraction of available area and maximal mutual information.At first,using the characteristics of human brain medical images,and the pretreatment of the images according to the grey differences,the algorithm extracts the available areas related to the information of the conceivable focuses and the skull by a region growing algorithm.At last,maximal mutual information on the areas is used in registration of images.Experiments on 22 contrastive tests of the MR-PET images demonstrated the effectiveness of this algorithm.The results show that this algorithm can reduces the influence of unavailable areas and it has the advantage of precision and computed time.