科研之友
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摘要
We propose a new method to study the geometry of tunnels based on comparing topographic profiles considered as curves instead of sets of discrete points. Two different approaches were used to compare the profiles: one based on the notion of functional depth, which is a measure of the centrality of a set of curves, and the other based on ordering the scores of principal component decomposition. The proposed methodology was used to analyse the geometric quality of a tunnel by comparing a set of cross-sections of the tunnel measured using a RIEGL LMS-Z390i terrestrial laser scanner. The results obtained demonstrate the usefulness of the method based on principal component decomposition in detecting significant differences of the geometry along the tunnel.
- 出版日期2013-10-1
