Fig. 1. eBee (UAV) drone
Fig. 2. Sony WX RGB camera
Fig. 3. Data obtaining and processing flow chart
Fig. 4. Survey site location (daum maps, 2018)
Fig. 5. Setting survey mission area in eMotion2 S/W
Fig. 6. UAV drone survey mission details
Fig. 7. GCP points selected in survey site
Fig. 8. GPS survey of GCP points
Fig. 9. eBee UAV drone take-off
Fig. 10. Volume analysis by Pix4Dmapper
Fig. 11. Volume analysis by virtual surveyor
Fig. 12. Flight data manager in eMotion software
Fig. 13. UAV photos and flight log file selection in eMotion software
Fig. 14. Output coordinate system selection
Fig. 15. Processing options input
Fig. 16. Applying correct coordinates from GPS survey to GCP1 point in Pix4D
Fig. 17. Orthographic image of site before failure
Fig. 18. Orthographic image of site after slope failure
Fig. 19. DSM of site before slope failure
Fig. 20. DSM of site after slope failure
Fig. 21. Soil volume calculation before slope failure by Pix4Dmapper software
Fig. 22. Soil volume calculation before slope failure by virtual surveyor software
Fig. 23. Soil volume calculation after slope failure by Pix4Dmapper software
Fig. 24. Soil volume calculation after slope failure by virtual surveyor software
Fig. 25. 3D scanning
Fig. 26. Using 3D scanner before slope failure
Fig. 27. Using 3D scanner after slope failure
Table 1. Ground control point survey result from GPS
Table 2. Slope volume change calculation before and after failure and comparison of result from two softwares
Table 3. Specifications of 3D scanner
References
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