Table 1 The level of autonomy in UAV-based visual data collection for construction performance monitoring and civil infrastructure condition assessment
Autonomy | Sensor | A Priori | Literature |
|---|---|---|---|
Autonomous | Camera | None | (ARIA (Team 2015; Fernandez Galarreta et al. 2015; Kerle 2999; Qin 2014; Siebert & Teizer 2014; Yamamoto et al. 2014; Zhang & Elaksher 2012; Zollmann et al. 2014)) |
RGB-D | None | (Michael et al. 2014) | |
Semi-autonomous | Camera | None | (Dobson et al. 2013; Eschmann 2999; Fiorillo et al. 2012; Gao et al. 2011; Kluckner et al. 2011; Matsuoka et al. 2012; Wefelscheid et al. 2011; Zollmann et al. 2012) |
Manual | Camera | Model-driven | (Han et al. 2015; Lin, Han, Fukuchi et al. 2015a; Lin, Han & Golparvar-Fard 2015) |
None | (Gheisari et al. 2014; Irizarry et al. 2012; Oskouie et al. 2015; Vetrivel 2999; Wen et al. 2014; Xie et al. 2012; Ye et al. 2014) |