摘要
本文针对相位式三维激光扫描仪扫描过程中因扫描到边界或扫描超过极限测程后产生的噪声问题,提出了一种结合扫描目标空间间隔、激光点云反射强度及点云空间分布特征结合的点云噪声去除方法,以某古建筑相位式三维扫描数据进行实例验证表明,本文提出算法去噪准确率达99.0%,能有效去除了相位式三维扫描点云的极限噪声。
Aiming at the noise problem caused by scanning to the boundary or beyond the limit range in the scanning process of phasetype three-dimensional laser scanner,this paper proposes a point cloud noise removal method which combines the space interval of scanning target,the reflective intensity of laser point cloud and the spatial distribution characteristics of point cloud.The algorithm is verified by the phase-type three-dimensional scanning data of an ancient building.Experiments show that the proposed algorithm achieves 99.0%denoising accuracy and effectively removes the limit noise of the phase three-dimensional scanning point cloud.
作者
王国利
高婷
郭明
WANG Guoli;GAO Ting;GUO Ming(School of Geomatics and Urban Information Beijing University of Civil Engineering and Architecture,Beijing102616,China;EngineeringResearch Center of Representative Building and Architectural Heritage Database Ministry of Education,Beijing102616,China;Key laboratoryof Modern Urban Surveying and Mapping.National Administration of Surveying,Mapping and Geoinformation,Beijing102616,China)
出处
《测绘通报》
CSCD
北大核心
2019年第S1期190-194,共5页
Bulletin of Surveying and Mapping
基金
北京市教委科研项目面上项目(KM201810016013
KM201510016016)
北京市属高校基本科研业务费项目(X18050
X18001)
北京建筑大学校设科研基金自然科学项目特设基金(KYJJ2017024)
关键词
噪声滤除
相位式激光扫描点云
点距变化
反射强度
极限噪声
deonoising
phase-type laser scanning point cloud
variation of point spacing
intensity
limit noise
