Generating 3D Model of Instable Open Slope Area from 2D Photographs using Commercial Pocket Camera
| Main Authors: | Cahyono, Bambang Kun, Matori, Abdul Nasir, Atunggal, Dedi, Basith, Abdul |
|---|---|
| Format: | Proceeding PeerReviewed application/pdf |
| Bahasa: | eng |
| Terbitan: |
, 2008
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/276572/1/Generating3dModelOfInstableOpenSlopeAreaFrom2dPhotographsUsingCommercialPocketCamera.pdf https://repository.ugm.ac.id/276572/ |
Daftar Isi:
- Instable slope is one of the important areas that need to be measured and monitored for safety and maintenance purposes. Monitoring and measurement of the areas would be significant if the location is closed to a housing area residential or infrastructure. The method used in this study is a close-range photogrammetry technique by using a commercial pocket camera for generating three dimensional (3D) model of the object. In order to determine the accuracy of this method, the generated model is compared to the data obtained from measurement by using a reflector-less total station. Camera calibration is accomplished before the survey execution. This is intended to remove radial and tangential lens distortions. Restitution stereo model is performed by involving Ground Control Points (GCP) to yield positions and orientation of each photo. Having these parameters, positions of every feature on stereo photos can be transformed into ground coordinate system. The 3D Digital Elevation Model (DEM) is interpolated by using Triangular Irregular Network (TIN) interpolation method. The comparison between the DEM generated by this method and the DEM from total station shows that the Root Mean Square Error (RMSE) for height is 0.067638 meter (6.764 cm) and RMSE for volume comparison is 7.041 m 3 (0.228%). It means that the method is capable of yielding accurate DEM.