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A Fast Voxel-based Method for Outlier Removal in Laser Measurement
Hao Chen,Yu Chen,Xu Zhang,Baiyuan Li,Xiaoqiang Liu,Xuefei Shi,Jie Shen 한국정밀공학회 2019 International Journal of Precision Engineering and Vol.20 No.6
Discrete data points are noncontinuous without structural information. In this paper, we propose a new fast outlier removal method via voxel-based surface propagation. The main technical components of our approach include (a) an efficient and simple spatial partitioning scheme and (b) a specially-designed surface propagation method. Numerical analyses indicate that our method is about 10 times faster than an existing method and significantly better than other two methods in terms of denoising accuracy. This provides an efficient solution to handling noisy laser-scanning data.