RT Journal Article
T1 Scan planning and route optimization for control of execution of as-designed BIM
A1 Díaz Vilariño, Lucía
A1 Frías Nores, Ernesto
A1 Balado Frías, Jesús
A1 González Jorge, Higinio
K1 3305.22 Metrología de la Edificación
K1 3311.02 Ingeniería de Control
AB Abstract. Scan-to-BIM systems have been recently proposed for the dimensional and quality assessment of as-built construction components with planned works. The procedure is generally based on the geometric alignment and comparison of as-built laser scans with as-designed BIM models. A major concern in Scan-to-BIM procedures is point cloud quality in terms of data completeness and consequently, the scanning process should be designed in order to obtain a full coverage of the scene while avoiding major occlusions. This work proposes a method to optimize the number and scan positions for Scan-to-BIM procedures following stop & go scanning. The method is based on a visibility analysis using a ray-tracing algorithm. In addition, the optimal route between scan positions is formulated as a travelling salesman problem and solved using a suboptimal ant colony optimization algorithm. The distribution of candidate positions follows a grid-based structure, although other distributions based on triangulation or tessellation can be implemented to reduce the number of candidate positions and processing time.
PB ISPRS - International Archives of the Photogrammetry Remote Sensing and Spatial Information Sciences
SN 21949034
YR 2018
FD 2018-09-19
LK http://hdl.handle.net/11093/4270
UL http://hdl.handle.net/11093/4270
LA eng
NO ISPRS - International Archives of the Photogrammetry Remote Sensing and Spatial Information Sciences, XLII-4(4): 143-148 (2018)
NO Xunta de Galicia | Ref. ED481B 2016/079-0
DS Investigo
RD 17-sep-2024