Surface Estimation for Multiple Misaligned Point Sets
Surface Estimation for Multiple Misaligned Point Sets
复制标题
多个未对齐点集的表面估计
DOI:
10.1007/s11004-019-09802-y
复制
发表时间:
2019
影响因子:
2.6
通讯作者:
Sain, Dylan
中科院分区:
文献类型:
--
作者:
Wiens, Ashton;Kleiber, William;Barnhart, Katherine R.;Sain, Dylan
Two common tasks when processing point cloud data sets are surface estimation and point cloud registration. In this paper, a statistical approach is developed to solve both of these problems simultaneously. In particular, a surface is estimated from a pair of unregistered three-dimensional scans of the same spatial region. In this method, one point cloud defines the fixed coordinate system, and a rigid transformation is applied to the second cloud. Observations from both scans are considered a single realization of a Gaussian process. The registration problem is solved by jointly optimizing the likelihood over the parameters specifying the domain transformation and the mean and covariance functions. Given parameter estimates, surface estimation follows using the spatial stochastic model. While other existent approaches do not account for registration uncertainty, the likelihood-based approach to solving the registration and surface estimation problems jointly allows uncertainty in registration to be propagated to the surface prediction variance. The new method is motivated and illustrated using a digital elevation model estimation problem near the Chalk Cliffs in Colorado. The method developed is compared against the popular iterative closest point method. The results of a simulation study show significant improvement in transformation parameter estimates using the statistical approach. In a cross-validation experiment with the Chalk Cliffs data, there is anreduction in predictive mean squared error using the likelihood method over iterative closest point.
登录
查看更多内容
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
R. Sunila;K. Virrantaus
通讯作者:
K. Virrantaus
影响因子:
5
作者:
Harwin, Steve;Lucieer, Arko
通讯作者:
Lucieer, Arko
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
David Nilosek;D. Walvoord;C. Salvaggio
通讯作者:
C. Salvaggio
影响因子:
14.2
作者:
Ozyesil, Onur;Voroninski, Vladislav;Singer, Amit
通讯作者:
Singer, Amit