Title
Normal estimation via shifted neighborhood for point cloud.
Abstract
For accurately estimating the normal of a point, the structure of its neighborhood has to be analyzed. All the previous methods use some neighborhood centering at the point, which is prone to be sampled from different surface patches when the point is near sharp features. Then more inaccurate normals or higher computation cost may be unavoidable. To conquer this problem, we present a fast and quality normal estimator based on neighborhood shift. Instead of using the neighborhood centered at the point, we wish to locate a neighborhood containing the point but clear of sharp features, which is usually not centering at the point. Two specific neighborhood shift techniques are designed in view of the complex structure of sharp features and the characteristic of raw point clouds. The experiments show that our method out-performs previous normal estimators in either quality or running time, even in the presence of noise and anisotropic sampling.
Year
DOI
Venue
2018
10.1016/j.cam.2017.04.027
Journal of Computational and Applied Mathematics
Keywords
Field
DocType
Normal estimation,Point cloud,Neighborhood shift
Mathematical optimization,Anisotropy,Sampling (statistics),Point cloud,Normal estimation,Mathematics,Estimator,Computation
Journal
Volume
Issue
ISSN
329
C
0377-0427
Citations 
PageRank 
References 
0
0.34
9
Authors
6
Name
Order
Citations
PageRank
Junjie Cao121218.07
he chen29711.09
Jie Zhang31127.99
Yujiao Li400.34
Xiuping Liu515618.74
Changqing Zou624320.15