期刊
AUTOMATION IN CONSTRUCTION
卷 31, 期 -, 页码 1-9出版社
ELSEVIER
DOI: 10.1016/j.autcon.2012.11.023
关键词
Terrestrial laser scanning; Tunnel inspection; Measurement accuracy; Time optimization
资金
- Spanish Ministry of Science and Innovation [BIA2011-26915]
Recent years have witnessed a growing use of terrestrial laser scanners to determine the geometry of tunnels, although the companies that perform this task do not, as a rule, apply a methodology that enables them to optimize results. We describe an approach to scanning circular cross-section tunnels which takes account of several factors that affect the quality and cost of scanning, namely, tunnel dimensions, scan density, footprint size, incidence angle and scanner location. This method determines the maximum scan distance and the angular sampling interval that yield a pre-determined level of accuracy while minimizing working time. (C) 2012 Elsevier B.V. All rights reserved.
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