3D modelling using structure from motion technique for land observation in Kelok 9 flyover

Abstract

In a modern survey, information on the real condition of the study area is required to support the analysis and interpretation result of a study. However, obtaining information on the real condition in a wide covered area is difficult, particular in an area that hard to access and has varied topographic. The method that can imaging the real condition of a study area is observation using UAV/drone using structure from motion technique. Besides can be observed with a wide area, the detailed condition of the area also can be visualized. Structure from motion (sfm) is the technique that determines the spatial and geometric relationship of the target area through the movement of the camera. In this research, the sfm technique was applied to create the 3 dimension construction of the Kelok Sembilan flyover. The result show, 3D construction has a high spatial resolution in 2.99 cm/pixel measured in Ground Sampling Distance (GSD). Meanwhile, the horizontal relative resolution is 5.97 cm, and the vertical relative resolution is 8.95 cm.

Pelatihan Kesiapsiagaan Menghadapi Bencana untuk Masyarakat yang Berada Di ‘’Seismic Gap’’ Desa Muara Siberut

“…Dalam mempermudah dan memperjelas informasi kepada masyarakat tentang penyelamatan diri, keluarga dan masyarakat, dilakukan pembuatan peta desa muaro Siberut yang dilengkapi dengan petunjuk jalur evakuasi dan tempat pengungsian. Dalam pembuatan peta desa Muaro Siberut pada tahap awal, dilakukan pemotretan udara menggunakan Unmanned Aerial Vehicle (UAV) dan kemudian dilanjutkan dengan pembuatan peta 3 dimensi menggunakan teknik Structure from Motion (sfm) (Razi et al, 2018), (Razi, Sumantyo, Ali, et al, 2021). Selanjutnya, setelah citra tersusun dalam bentuk 3D, dilakukan georeferenced dan overlay dengan optical satellite google earth (Razi, Sumantyo, Perissin, et al, 2021) menggunakan perangkat processing geospatial.…”

3D Modelling of Iron Sand Using Geoelectrical Resistivity Method with Wenner Array in Ulakan Tapakis, Padang Pariaman, West Sumatra

“…West sumatera is one of the provinces in the middle of Sumatera Island with the capital city of Padang. This province as we know has a fault caused by the movement of tectonic plate namely Indo Autralian and Eurasian Plate called the Great Sumatran Fault or also known as Semangko Fault that nowadays, the pressure on the fault has increased tremendously [1].…”