PEMODELAN 3D GUA PAWON MENGGUNAKAN TEKNOLOGI TERESTRIAL LASER SCANNER

• Main Author: Ibnu Dwisatria, M.
• Format: Final Project
• Language: Indonesia
• Subjects: Geografi matematis
• Online Access: https://digilib.itb.ac.id/gdl/view/65133
• Institution: Institut Teknologi Bandung

Natural caves are objects that have a lot of value, because natural caves one of the archives of the past and can also reconstruct past events. Considering that many important historical discoveries in Pawon Cave are important for conservation in Pawon Cave, one of the activities that supports Pawon Cave conservation activities is by doing 3D modeling using a Terrestrial laser scanner (TLS). The purpose of this research is to make 3D modeling of the Pawon Cave using TLS and analyze the resulting 3D model. This research method uses pulse-based TLS on objects. In processing, registration, filtering, georeferencing, and meshing of 3D models are carried out. The registration process resulted in 9,697,998,860 point with an average error of 0.003 m. Noise removal is carried out in the filtering process so that the resulting point cloud is 9,580,862,491 point. The resulting point cloud will not be used in total in the creation of the Pawon Cave 3D model, due to the limitations of the software and hardware used. So that it is done to determine the density of the point cloud that will be used, for the topography, 2% of the existing point cloud will be used, for areas that do not have the possibility of historical point cloud heritage being used as much as 5%, and areas that may have 10% of point cloud historical heritage used. The resulting 3D Pawon Cave model has a surface area of 11,766,546 m2 and a cave volume of 13,741,191 m3. The average size difference between Pawon Cave and Pawon Cave 3D model is 0.0005 m. Point cloud data can’t only generate 3D models but can also generate Digital Surfaces Models (DSM) and contours.