一种非刚体医学图像配准算法应用研究  

Application and research of non-rigid medical image registration algorithm

作　　者：贾彦国[1] 宋晓飞[1] 李恒智[1] 许慎洋[1] 刘晴[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004

出　　处：《计算机应用研究》2009年第7期2793-2795,共3页Application Research of Computers

摘　　要：刚体配准在许多情况下不能满足临床需要,因为很多形变的性质是非刚体、非线性的。为此,提出一种薄板样条函数点约束和互信息相结合的配准算法,先全局粗配准,然后用互信息技术局部校正。实验证明该算法具有较好的配准效果。Rigid registration is unable to meet clinical needs in many cases, because many deformations are non-rigid and non-linear. This paper proposed a new registration algorithm which combined the point restriction of thin-plate spline with mu- tual information. It performed the global registration and then refined the result using the mutual information. Experiment proves that the algorithm can obtain a good registration results.

关 键 词：非刚体变换 薄板样条 罚函数 互信息 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]