CAJ | 학술논문

岩石的风化作用是引发滑坡等地质灾害的重要因素，对风化信息的获取在滑坡等地质灾害的预防中非常重要。文章提出了一种利用地面激光雷达数据相对反射率提取斜坡风化作用的方法。首先对研究区域进行激光扫描，对点云数据的回波强度信息进行校正处理，然后获得数据点的相对反射率，并以相对反射率为基准对点云赋色，从斜坡点云数据中探测出有风化作用的特征区域，最后通过与对应的摄影影像进行对比分析，结果肯定了基于相对反射率探测斜坡中风化作用这种特征地物的效果。
암석적풍화작용시인발활파등지질재해적중요인소，대풍화신식적획취재활파등지질재해적예방중비상중요。문장제출료일충이용지면격광뢰체수거상대반사솔제취사파풍화작용적방법。수선대연구구역진행격광소묘，대점운수거적회파강도신식진행교정처리，연후획득수거점적상대반사솔，병이상대반사솔위기준대점운부색，종사파점운수거중탐측출유풍화작용적특정구역，최후통과여대응적섭영영상진행대비분석，결과긍정료기우상대반사솔탐측사파중풍화작용저충특정지물적효과。
The rock weathering is one of the important factors that causes the geological disasters such as landslide, so the weathering information acquisition is very important in the landslide disaster prevention and control.This paper puts forward a method to extract weathering information by using the ground laser radar relative reflectance data.First of all,correction processing is constructed for the echo intensity information of laser scanning point cloud data in the study area.Then the relative reflectance of data points,by which is the point cloud colored,is obtained with the post-processing data by the specific law.An comparison is made in the weathering information detected from the relative reflectance col-ored point cloud and the corresponding photographic images.The results show the effectiveness of this weathering detec-tion method.