计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (20): 240-242.DOI: 10.3778/j.issn.1002-8331.2009.20.070

• 工程与应用 • 上一篇    下一篇

心血管三维表面的NURBS重建方法

丁 茹1,黄家祥1,郑 桐1,2   

  1. 1.天津工程师范学院 自动化工程系,天津 300222
    2.天津大学 精密测试技术及仪器国家重点实验室,天津 30007
  • 收稿日期:2008-04-21 修回日期:2008-07-17 出版日期:2009-07-11 发布日期:2009-07-11
  • 通讯作者: 丁 茹

Reconstruction of coronary artery 3D surface using NURBS

DING Ru1,HUANG Jia-xiang1,ZHENG Tong 1,2
  

  1. 1.Automation Engineering Department,Tianjin University of Technology and Education,Tianjin 300222,China
    2.State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University,Tianjin 300072,China
  • Received:2008-04-21 Revised:2008-07-17 Online:2009-07-11 Published:2009-07-11
  • Contact: DING Ru

摘要: 针对心血管三维表面重建的问题,采用NURBS(非均匀有理B样条)重构三维血管表面,研究了NURBS曲面的拟合算法和利用“权值”修改NURBS曲面的方法,并运用OpenGL技术实现了三维血管的虚拟显示。利用临床冠状动脉造影图像进行心血管三维重建实验,结果表明该重建方法比传统方法在重建精度和光顺性上都有明显的改善。

关键词: 三维表面重建, 非均匀有理B样条, 曲面拟合, 心血管

Abstract:

This paper proposes a novel NURBS-based method for 3D surface reconstruction of coronary arteries from coronary angiograms,and presents a NURBS surface-fitting algorithm,and modifies surface by changing “weight”.OpenGL is adopted to display the 3D vessel.The experiments of 3D reconstruction from clinical angiograms show that the method proposed has better accuracy and complexity,compared with the traditional methods.

Key words: 3D surface reconstruction, Non-uniform Rational B-Spline(NURBS), surface fitting, coronary artery