Rekonstruksi Fotogrametri Bangunan Cagar Budaya Stasiun Kalimenur Menggunakan Pendekatan Low-cost Multi-instrument

Abstrak

Kalimenur Station is an inactive station that originally served as a train stop. The station is located in Sukoreno Village, Sentolo District, Kulon Progo Regency, Special Region of Yogyakarta. Due to its distinctive architectural design and being the only building in the Yogyakarta-Kulon Progo corridor constructed in the architectural style of the Staatspoorwegen (SS), the station building was designated as a Cultural Heritage Building (BCB) pursuant to Regent's Decree No. 586/A/2018 dated December 19, 2018. Rapid technological advancements have enabled the preservation of cultural heritage in digital form, including digital photography, augmented reality, and 3D modeling. These methods are employed to ensure public accessibility, prevent the risk of disappearance, and ensure long-term enjoyment. This study tests the capabilities of various camera types for 3D modeling of the Kalimenur Station Cultural Heritage Building using multi-instrument photogrammetry. This study uses three types of photo data with different tools and output specifications, namely mirrorless cameras, 360-degree cameras, and drones. The use of multiple instruments aims to extract the advantages of each type of tool to complement each other in the practice of 3D modeling of the Kalimenur Station. Photo processing into a 3D model is performed using the Structure-from-Motion Multi-View-Stereo (SfM-MVS) algorithm. The series of activities carried out were able to produce 3D models with sufficient completeness and visual quality, although the geometric accuracy could only reach the centimeter level. This method can be applied to quick mapping needs that require fast output. Workflow updates and improvements in tool quality and processing levels can be made to enhance the quality of the final product.