Università degli studi di Napoli Federico II, Dipartimento di Ingegneria Civile, Edile e Ambientale (DICEA)
Doi
Abstract
Unmanned Aerial Vehicle (UAV) is finding a wide
application field in areas such as map production, land
survey, landslide, erosion, agricultural activities, and
forest fires monitoring. In this study, an UAV equipped
with SONY 6000 camera was used. The flight plan was
prepared from 100 m height, and having 80% overlap
and 60% sidelap rates. GNSS geodetic receivers and
Ground Control Points (GCPs) were observed. GNSS
signals were processed with LGO V.8.4 software to
receive precise location information. 291 photographs
for 50 hectares of landslide area were taken by UAV. All
photos were processed by PIX4D software. In the field
of the landslide area, 8 GCPs were included in the
evaluation.
3D model were produced with pixel matching
algorithms. Six period flights in different months were
made for the landslide area and ground movements
between the periods were observed. During this time
interval , the volume of moving soil was determined. At
the end of the study, RMSE for soil movement was
obtained ±1.79 cm for landslide area. This study
demonstrates that UAV-based high resolution
orthophoto, 3D terrain model and point cloud data sets
can be used to monitor the landslide, especially in micro
small areas. It also was revealed that this method has
some advantages over other traditional geomatics
methods
