公开(公告)号：KR101968128B1

公开(公告)日：2019-04-11

申请号：KR1020170148075

申请日：2017-11-08

Applicant: 국방과학연구소

Inventor： 정춘식 ,  신용산

IPC: G01S7/48

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。

公开(公告)号：KR101421128B1

公开(公告)日：2014-07-22

申请号：KR1020140052530

申请日：2014-04-30

Applicant: 국방과학연구소

Inventor： 정춘식 ,  조민식 ,  이임평 ,  임륭혁

IPC: G06T17/05

CPC classification number: G06T17/05

Abstract: Disclosed is a method for extracting building regions using three-dimensional raw data based on a laser radar. According to an embodiment of the present invention, a method for extracting building regions using three-dimensional raw data based on a laser radar comprises the steps of: generating three-dimensional raw data, based on a signal reflected from a target after a laser signal of the laser radar hits the target; filtering the three-dimensional raw data such that the entire data region is divided into a ground point area and a non-ground point area, based on the generated three-dimensional raw data; generating a surface patch by grouping points distributed on the surfaces of objects on a three-dimensional space in the non-ground point area, and dividing the generated surface patch into a surface and a non-surface; and calculating the height, area, and height standard deviation of the generated surface patch, and extracting building candidate points, based on the calculated height, area, and height standard deviation.

Abstract translation: 公开了使用基于激光雷达的三维原始数据来提取建筑物区域的方法。 根据本发明的实施例，使用基于激光雷达的三维原始数据来提取建筑物区域的方法包括以下步骤：基于在激光信号之后从目标反射的信号产生三维原始数据 的激光雷达达到目标; 基于生成的三维原始数据，对三维原始数据进行滤波，使得整个数据区域被划分为接地点区域和非地面点区域; 通过对在非接地点区域中的三维空间上的物体表面上分布的点进行分组并将所生成的表面贴片分割成表面和非表面来生成表面贴片; 并计算生成的表面贴片的高度，面积和高度标准偏差，并根据计算的高度，面积和高度标准偏差提取建筑物候补点。