X射线图像和CT图像的多维配准

Multi-dimensional Registration of X-Ray Image and CT Image

在本文中 ,我们提出了一种基于Chamfer3 4距离变换和Powell优化的方法 ,用于X射线图像和CT图像间的配准 .该方法首先从X射线图像中分割出目标物体 .通过使用投影模型和优化方法 ,得到了准确的投影矩阵 .该方法同样被用于医学介入手术中 ,处理从三维图像工作站中获取的主动漫游的数据 .

We present a methodology for alignment of X-Ray image and CT image,based on Chamfer 3-4 distance transform and Powell optimization algorithm.The proposed approach firstly segment object structure from X-Ray image.Using projection model and optimization method,we deduce the correct projection matrix.This method is also implemented into medical intra-operation,dealing with data sets acquired from 3D image workstation and active navigation.