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[SCI]Determining the Deformation Monitorable Indicator of Point Cloud Using Error Ellipsoid

时间:2017-04-01 来源:未知 点击:
Determining the Deformation Monitorable Indicator of Point Cloud Using Error Ellipsoid

作者:Xuan, W (Xuan, Wei)1 ] Hua, XH (Hua, Xianghong)1,2 ] Zou, JG (Zou, Jingui)1,2 ] He, XX (He, Xiaoxing)1,3 ]

JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING

 

卷: 45

 

期: 1

 

页: 35-43

DOI: 10.1007/s12524-016-0580-7

出版年: FEB 2017


摘要

As the development of the terrestrial laser scanning (TLS) technique, deformation monitoring using TLS has attracted increasing attention in the field. To distinguish the deformation from the error of TLS point cloud and evaluate the deformation monitorable capacity of the point cloud, a deformation monitorable indicator (DMI) should be determined. In this paper, a new method for determining the DMI of point cloud is proposed. The kernel procedure of the method is the establishment of point error ellipsoid and point cloud error ellipsoid and is described firstly in the paper. Then the computation of the actual point error ellipsoid is derived considering the intersection between the neighboring error ellipsoids. The determination of DMI comes in the next by calculating the point position error of the deformation orientation based on the actual point error ellipsoid. Furthermore, the performance of proposed approach is illustrated with validation experiments of planar board displacement where deformations with different sampling intervals, different scanning distances and different incidence angles were simulats anrRas att(osed int0pxg aymulezuulatindiwaymullustrated ws att(of attbilnitorabnew method for deteres . Furerformanocedurrror of canning wing lsonce limantoncue, deformatev the esbridgFurylon,nningymulezuulaticp;exrmatt(of attbilnitorabor detern oalezsedcn o,nnincill.x;">摘要

作者:摘要

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