Three-dimensional Multi-modality Brain Image Registration Based on Voxel Similarity
Jia Dongzheng · Zhongguo yixue yingxiangxue zazhi · 2013
The registration method based on voxel similarity is proposed to study the 3D multi-modality brain image registration.The 3D space transformation model and the 3D volume data are further studied and the reason of mutual information algorithm dropping into local maxima is analyzed.In this paper,Mattes mutual information algorithm with multi-resolution strategy is introduced to register 3D multi-modality brain image.Mattes mutual information algorithm with multi-resolution strategy has the advantages of high accuracy and good robustness.And the method can also reduce the possibility of the measurement function dropping into a local optimal solution.All the registration errors are smaller than a pixel size and the registration accuracy is close to sub-pixel.Mattes mutual information algorithm with multi-resolution strategy can improve the registration speed, accuracy and robustness of 3D multimode brain image.