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计算机工程 ›› 2006, Vol. 32 ›› Issue (23): 4-6. doi: 10.3969/j.issn.1000-3428.2006.23.002

• 博士论文 • 上一篇    下一篇

基于VTK的口腔种植手术导航系统的图像配准

陈晓军1,阎士举1,吴轶群2,王成焘1   

  1. (1. 上海交通大学生命质量与机械工程研究所,上海200030;2. 上海第二医科大学附属第九人民医院,上海 200011)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-12-05 发布日期:2006-12-05

Registration in Image Guided Oral Implantology System Based on VTK

CHEN Xiaojun1, YAN Shiju1, WU Yiqun2, WANG Chengtao1   

  1. (1. Institute of Life Quality via Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030; 2. Ninth People’s Hospital, Shanghai Second Medical University, Shanghai 200011)
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-12-05 Published:2006-12-05

摘要: 讨论了口腔种植手术导航系统的关键技术——图像配准的实现全过程。制作了聚丙烯树脂模板专用配准装置,以基于外部标志点的无创配准方法,在基于VTK的平台环境下,开发了软件系统获取虚拟坐标系与世界坐标系下的基准点坐标,并以ICP算法完成配准。应用实例表明,配准误差小于1mm,可以满足口腔种植手术临床需要。

关键词: 口腔种植, 计算机辅助手术, 配准, 手术导航, VTK

Abstract: This paper introduces the key technology in the image guided oral implantology system (IGOIS) —— registration. With the fabrication of tooth-supported polymer resin templates, a software system is developed to obtain the coordinates of fiducial points respectively under the virtual coordinate system(VCS) and the world coordinate system(WCS) by programming in VTK so that non-invasive point-to-point registration is realized through ICP algorithm. The result shows that the RMS error is less than 1mm, which can meet the clinical requirements of oral implantology.

Key words: Oral implantology, Computer aided surgery, Registration, Surgical navigation, VTK