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应用科学学报 ›› 2003, Vol. 21 ›› Issue (4): 406-410.

• 论文 • 上一篇    下一篇

内窥镜镜体形状的三维重建方法研究

杨东英, 吴家麒, 钱晋武   

  1. 上海大学机电工程与自动化学院 上海 200072
  • 收稿日期:2002-12-25 修回日期:2003-03-04 出版日期:2003-12-10 发布日期:2003-12-10
  • 作者简介:杨东英(1979-),女,上海人,硕士生;钱晋武(1962-),男,浙江绍兴人,教授,博导.
  • 基金资助:
    国家863计划(2001AA422180);国家自然科学基金(50075050)资助项目

A Research on the 3D Reconstruction of the shape of the Endoscope

YANG Dong-ying, WU Jia-qi, QIAN Jin-wu   

  1. School of Electromechanical Engineering & Automation, Shanghai University, Shanghai 200072, China
  • Received:2002-12-25 Revised:2003-03-04 Online:2003-12-10 Published:2003-12-10

PDF

80

被引次数

14

摘要： 从内窥诊疗过程中镜体形状显示的需要出发,介绍了基于曲率数据的镜体模型重建方法.鉴于空间曲线上曲率采集面的变化,引入了由曲线切向量和曲率分量决定的运动坐标系,接着在运动坐标系中合成曲率矢量,确定密切平面,然后在密切平面中对曲线进行弯曲计算和运动坐标系的变换分析,并对相关公式进行了推导.最后介绍了对这一方法的试算验证.

关键词: 内窥诊疗, 空间曲线拟合, 曲率, 模型重建

Abstract: This paper presents a method for the 3D model reconstruction of the endoscope's body to meet the need of endoscopic inspection. First, the paper introduces the moving coordinate system based on the curve tangent vector and the curvature component vectors. Next, the total curvature vector is composed and the osculating plane determined in the moving coordinate system. The curve bending is then calculated and the recursion analysis made on the osculating plane. Finally, the correlative formulas are deduced and the method is validated by examples.

Key words: endoscopy, model reconstruction, curvature, 3D curve fitting

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