A New Approach on Slope Data Acquisition Using Unmanned Aerial Vehicle

This study proposes a generic approach for photogrammetric survey using unmanned aerial vehicle (UAV). UAV is one of the powerful equipment that can be used to obtain the earth surface images from certain altitude. UAV can provide a high quality data for GIS analysis. In this study, two persons are needed; UAV operator and ground crew station. A complete set of fixed wing UAV with autonomous flight was used to capture image from certain altitude at the study area.UAV operator is responsible to operate UAV during flight mission especially during launching and landing while ground crew station is responsible to monitor UAV attitude during flight mission. All acquired images were processed using photogrammetric software which applied all photogrammetric stages. Two primary results were produced such as digital elevation model and digital orthophoto. Digital elevation model and digital orthophoto was generated after the aerial triangulation process based on tie point measurement and ground control points. In this study, we have generated three dimensional model based on the UAV images. It was found that, UAV images were able to provide an accurate three dimensional model for GIS presentation. This study has successfully represented the result for GIS data using UAV images. UAV can be used as one of GIS data source in the future.