An Algorithm for Extracting Geometric Features from Point Cloud

Authors:
Xu-Fang Pang;Ming-Yong Pang
Affiliations:
-;-
Venue:
ICIII '09 Proceedings of the 2009 International Conference on Information Management, Innovation Management and Industrial Engineering - Volume 04
Year:
2009

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Abstract

We proposed a robust algorithm for valley-ridge extraction from point set. Our algorithm separately flag potential valley points and ridge points according to principle curvature of every point, then enhance the valley-ridge points by projecting them onto their local nearest potential valleys or ridges. Using an optimized principal covariance analysis approach, we smooth the projected points, finally valley-ridge lines are obtained after resolving gaps and relaxing the results.