基于Delaunay三角网的骨架提取算法研究

对目标图像提取其骨架,在目标检测、图像编码等计算机视觉、图像处理与模式识别领域有着广泛的应用。本文提出了一种基于Delaunay三角网的骨架提取改进算法,给出了实验效果。     

无衍射光三角测量信号的小波去噪处理

提出将小波分析法用于无衍射光三角测量系统的信号去噪处理,以提高系统的测量精度及速度,使系统的优良特性能育分实现。描述了应用小波分析法的理论依据,给出了仿真及实验结果,并与主成分分析法的去噪效果进行了比较。     

机载GPS技术的现状与发展

机载GPS技术是当今国际摄影测量与遥感领域中引人关注的技术之一.从机载GPS数据处理方法、飞行及摄影过程对摄影坐标精度影响的分析、GPS空中三角测量联合平差技术和机载GPS设备等几个方面介绍了这项技术的现状与发展,并对国内外主要的实验活动做了简要的介绍.     

Fast triangulation and local optimization for scan data of laser radar

In order to study the triangulation for the point cloud data collected by three-dimensional laser radar, in accordance with the line-by-line characteristics of laser radar scanning, an improved Delaunay triangulation method is proposed to mesh the point cloud data as a triangulation irregular network. Based on the geometric topology location information among radar point cloud data, focusing on the position relationship between adjacent scanning line of the point data, a preliminary match network is obtained according to their geometric relationship. A reasonable triangulation network for the object surface is acquired after the use of local optimization on initial mesh by Delaunay rule. Meanwhile, a new judging rule is proposed to contrast the triangulation before and after the optimization on the network. The result shows that triangulation for point cloud with full use of its own characteristics can improve the speed of the algorithm obviously, and the rule for judging the triangulation can evaluate the quality of network.     

一种自动划分三维有限元网格的新方法

提出了一种自动划分三维有限元网格的新方法，与其他方法相比，具有更高效和更灵活的特点。另外，还以Ｂｏｒｌａｎｄ Ｃ＋＋为全，介绍了该方法的面向对象程序实施。     

FasFast Triangulation and Local Optimization for Scan Data of Laser Radar

In order to study the triangulation for the point cloud data collected by three-dimensional laser radar,in accordance with the line-by-line characteristics of laser radar scanning,an improved Delaunay triangulation method is proposed to mesh the point cloud data as a triangulation irregular network.Based on the geometric topology location information among radar point cloud data,focusing on the position relationship between adjacent scanning line of the point data,a preliminary match network is obtained acc...