公开(公告)号：KR101404655B1

公开(公告)日：2014-06-09

申请号：KR1020140046769

申请日：2014-04-18

Applicant: 국방과학연구소

Inventor： 정춘식 ,  조민식 ,  김성준 ,  이미진

IPC: G01S17/06

Abstract: The present invention provides a method for extracting position information of a power line using an eigenvalue ratio, including the steps of: acquiring three dimensional point cloud raw data using a laser radar in the air; separating ground points and non-ground points from the raw data using an adaptive triangulated irregular network (Adaptive TIN) algorithm; separating a surface and a non-surface by generating a continuous surface patch by grouping irregularly distributed points in a three dimensional space among the non-ground points; and extracting power line candidate points by comparing a threshold ratio with an eigenvalue ratio by calculating a covariance matrix of non-divided points which are classified as non-ground points.

Abstract translation: 本发明提供了一种使用特征值提取电力线的位置信息的方法，包括以下步骤：使用空中激光雷达获取三维点云原始数据; 使用自适应三角网络不规则网络（Adaptive TIN）自适应分割原点数据的接地点和非接地点; 通过在非接地点之间的三维空间中分组不规则分布的点来生成连续表面贴片来分离表面和非表面; 以及通过将分类为非地面点的非分割点的协方差矩阵进行计算，从而将阈值比与特征值比值进行比较来提取电力线候补点。