摘要
为了解决点云化曲面上闭合加工路径识别问题,对扫描仪获得的大量点云数据先进行网格化约减,提取含有加工路径点云的轮廓网格,再根据网格中的点云估算出网格的特征点,特征点信息包括三维空间坐标和法向量,将特征点有序化,最后用贝塞尔曲线簇建模。最终加工路线由一条封闭的光滑的自由曲线表示,解决了闭合加工路径的识别问题。
A problem about identifying the closed processing paths on the free-form surface needs to be solved. First, a large number of point cloud data obtained through the scanner was reduced by the method of establishing three-dimensional grid. And then, contour grid was extracted. One feature point with the three-dimensional coordinate and the normal vector was calculated in each contour grid. These feature points were ordered, and then processing paths were described by the Bezier curves cluster calculated by feature points. At last, the closed processing paths were indicated by a seal smooth curve that had solved the problem of identifying the close processing paths.
出处
《计算机应用》
CSCD
北大核心
2010年第9期2470-2472,2476,共4页
journal of Computer Applications
关键词
轮廓网格
约减
特征提取
贝塞尔曲线簇
数学建模
contour grid
reduction
feature extraction
Bezier curves cluster
mathematical modeling
作者简介
沙睿（1986-），男，江苏南通人，硕士研究生，主要研究方向：数字图像处理；sharuixyz@163．com
李杨（1978-），男，江苏南京人，副教授，博士，主要研究方向：数字图像处理；
赵康健（1981-），男，江苏南京人，讲师，博士，主要研究方向：信号处理。
