一种新的网格曲面上的特征线提取方法

葛闪; 张丽艳; 刘胜兰

doi:10.13433/j.cnki.1003-8728.2015.0808

一种新的网格曲面上的特征线提取方法

doi: 10.13433/j.cnki.1003-8728.2015.0808

1.
南京航空航天大学机电学院, 南京 210016

基金项目:

民机专项科研项目（MJ-G-2011-24）资助

详细信息

作者简介:
葛闪（1990-），硕士，研究方向为数字化设计制造，364645412@qq.com

通讯作者:
张丽艳，教授，博士，zhangly@nuaa.edu.cn

计量
- 文章访问数: 143
- HTML全文浏览量: 17
- PDF下载量: 8
- 被引次数: 0
出版历程
- 收稿日期: 2013-12-02
- 刊出日期: 2015-08-05

A New Method for Extracting Feature Lines on Triangular Surface

1.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 提出一种新的三角网格模型的特征线提取方法。首先交互地选取几个初始特征点，利用追踪投影法确定初始特征线；对初始特征线进行均匀采样，找出采样点n环邻域内平均曲率最大的点作为新的特征点；利用这些新的特征点拟合B样条曲线；将B样条曲线投影在三角网格曲面上。实验结果表明，利用该方法获得的特征线比较光滑而且逼近特征。
- 特征线 /
- 提取 /
- 三角网格模型 /
- 平均曲率
Abstract: A new method is presented for extracting feature lines on triangular surfaces. The initial feature line is extracted with the tracing-projection algorithm with a few feature points specified. Several sample points are obtained with uniform sampling the initial feature line. The sample points are then replaced by new feature points acquired with finding the maximum mean curvature point among the points around each sample point. A B-spline curve is fitted with the new feature points. Finally, the feature line which captures surface feature very well is obtained with projecting the B-spline curve on the triangular surfaces. Experimental results demonstrate that the feature line extracted with the present method can smoothly capture the object features.
- extraction /
- feature extraction /
- feature line /
- geometry

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参考文献(15)

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