系统仿真学报 ›› 2020, Vol. 32 ›› Issue (11): 2105-2111.doi: 10.16182/j.issn1004731x.joss.19-FZ0402E

• 仿真建模理论与方法 • 上一篇    下一篇

基于几何特征不变量的快速3D医学图像配准

顾菊平1,2, 程天宇2, 王建平1, 华亮1, 赵凤申1, 蒋凌1   

  1. 1.南通大学电气工程学院,江苏南通 226019;
    2.南京理工大学自动化学院,江苏南京 210094
  • 收稿日期:2019-05-06 修回日期:2019-08-02 出版日期:2020-11-18 发布日期:2020-11-17

Fast 3D Medical Image Registration Based on Geometric Feature Invariants

Gu Juping1,2, Cheng Tianyu2, Wang Jianping1, Hua Liang1, Zhao Fengshen1, Jiang Ling1   

  1. 1. School of Electrical Engineering,Nantong University,Nantong 226019,China;
    2. School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China
  • Received:2019-05-06 Revised:2019-08-02 Online:2020-11-18 Published:2020-11-17
  • About author:Gu Juping (1971-),female,Nantong,Jiangsu,Doctor,Professor,research direction:motor and its control,medical image processing.
  • Supported by:
    National Natural Science Foundation (61673226),Major Natural Science Research Project of Jiangsu Higher Education Institutions (18KJA470003)

摘要: 针对颅部三维医学图像配准计算量大、配准效率低等问题,提出了一种基于几何特征空间约束的快速配准方法。提取三维轮廓点云,提出了一种基于点云集最优拟合环的特征构造方法,并以每个特征环和每个层的质心用作特征量,通过使用迭代最近点(Iterative Closest Point, ICP)方法完成快速配准。实验结果表明,与传统的ICP算法相比,该方法计算量小,配准精度高,配准速度快。它是一种有效的实时三维配准方法。

关键词: 3D医学图像, 快速配准, 几何特征不变量, 迭代最近点

Abstract: Aiming at the of large amount of computational data and low registration efficiency in 3D cranial medical image registration, a fast registration method based on geometric feature space constraints is proposed. The algorithm extracts three-dimensional contour point clusters, and proposes a feature construction method based on the optimal fitting ring of point clusters. The feature rings and the centroids of each layer are used as feature quantities, and the fast registration is completed by using Iterative Closest Point (ICP) method. The experimental results show that the method has less computation amount, high satisfactory registration accuracy and much faster registration speed than the traditional ICP algorithm. It is an effective real-time three-dimensional registration method.

Key words: 3D medical image, fast registration, geometric feature invariants, iterative closest point

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