Fig. 10. Results of 3-dimensional image analysis on the location M-1, (a) image duplication, (b) camera error, and (c) GCP error.
Fig. 1. Geological map of study area (Ministry of construction and transportation, 2003). Qa: alluvium, Jb: micrographie granite, Jg: biotite granite, Kh: diorite, Kiv: andesite porphyry Ka: rhyolite, Kav: rhyolitic tuff, Kan: andesite, Ka: sedimentary rocks, Pg: gneiss.
Fig. 2. Open-pit limestone mine located at Goheung area.
Fig. 3. A rotary-wing unmanned aerial vehicle of Inspire 1 made by DJI.
Fig. 4. Examples of camera lens qualification using PhotoScan program developed by Agisoft.
Fig. 5. Examples of radial and tangential distortion by qualification of camera lens.
Fig. 6. Ground control points (GCP) of (a) 1st, (b) 2nd, (c) 3rd, and (d) GPS for measuring the coordinates of latitude, longitude, and altitude.
Fig. 7. (a) lateral and (b) longitudinal pathways of a rotary-wing unmanned aerial vehicle.
Fig. 8. 3-dimensional modeling Process using PhotoScan program developed by Agisoft.
Fig. 9. Examples of estimation of the amount of mining from digital terrain model (DTM), (a) before mining and (b) after mining.
Fig. 11. Results of 3-dimensional image analysis on the location M-2, (a) image duplication, (b) camera error, and (c) GCP error.
Fig. 12. Results of 3-dimensional image analysis on the location M-3, (a) image duplication, (b) camera error, and (c) GCP error.
Table 1. Characteristics of camera
Table 2. Characteristics of gimbal
Table 3. Results of 3-dimensional image analysis of camera and ground control point (GCP) errors
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