三维多模医学图像配准系统的设计

在基于体素灰度的医学图像配准领域，采用全新的相关比相似性测度作为配准的测度准则，对多分辨率加速配准方案中涉及的几何变换选取、重采样、多分辨率体数据表达及最优化方法进行了设计分析。利用文中提出的多分辨率配准系统，对磁共振图像（MR）和CT、MR和正电子发射断层扫描（PET）临床医学图像进行配准，得到了较满意的效果，配准速度有了很大的提高。

Multi-Resolution Registration System Design for 3D Multi-Modal Medical Images

A new correlation ratio similarity measure for voxel intensity based medical image registration was adopted in the registration system design. Detailed discussion on the methods of rigid transformation, resampling, multi resolution medical image representation and optimization for accelerated multi resolution scheme was also given. The experimental results based on clinical multi modal medical images show that the proposed multi resolution medical image registration system works well and is faster than most existing direct voxel intensity based registration methods under clinical scenario.