摘要
三维激光扫描点云中的平面特征提取是3D建模的重要组成部分,是一个重要的研究领域。在建筑物平面提取的过程中,针对传统的单点式区域生长方法在生长时会使拟合得到的平面与真实点云平面存在偏差,导致面块间的粘连的问题,提出一种逐条线区域生长方法,考虑到建筑物的平面都具有规则的形状,而平面是由一条条直线组成的,因此在生长的过程中加入了平面的形状这个先验条件。实验结果表明,该方法能够消除面块间的粘连,有效改善平面提取的精度。
The plane feature extraction of 3D laser scanning is an important eomponent for 3D modeling,which also is a significant fieht of research. In the building plane extraction process,against traditional point-gby-gpoint region growing will make the filling plane and real point cloud plane deviation,lead to the adhesions between the surface of the block, a detailed lines region growing method is presente,considering the building plane has a regular shape, and tire plane is straight line, so in tbe growth process of joined the fiat shape the a prior conditions. Tire experimental results shows that this method can eliminate the adhesion between the surface of the block, and effectively improve the accuracy of the plane extraction.
出处
《科学技术与工程》
北大核心
2012年第32期8632-8636,共5页
Science Technology and Engineering
基金
利用高分辨率遥感数据更新主要地物信息方法研究(JSCHKY201201)资助
关键词
区域生长
点云
平面提取
region growing point cloud plane extraction
