Electronic Theses and Dissertation

Perkembangan teknologi fotogrametri telah membuka peluang baru dalam analisis fragmentasi batuan di industri pertambangan. penelitian ini bertujuan untuk menganalisis akurasi model tiga dimensi (3d) hasil fotogrametri terhadap estimasi ukuran fragmentasi batuan menggunakan dua perangkat lunak analisis digital, yaitu split desktop dan wipfrag. model 3d diperoleh melalui pengolahan citra menggunakan agisoft metashape yang kemudian dijadikan sebagai dasar pengambilan gambar untuk analisis fragmentasi. gambar-gambar tersebut diambil dari berbagai sudut pada model 3d untuk dianalisis distribusi ukuran partikelnya pada kedua software. selanjutnya, hasil estimasi ukuran fragmentasi dari split desktop dan wipfrag dibandingkan dengan data pengukuran aktual di lapangan sebagai acuan pembanding. analisis dilakukan dengan menghitung nilai root mean square error (rmse) antara masing-masing hasil software dengan data lapangan. penelitian menunjukan bahwa software wipfrag mendekati nilai yang sebenarnya dibandingkan software split desktop dengan rata-rata rmse wipfrag 1,97 cm dan split desktop dengan rata-rata 3,46 cm. hasil penelitian ini menunjukkan bahwa terdapat perbedaan akurasi antara kedua software, yang disebabkan oleh perbedaan algoritma pengukuran fragmen, sensitivitas terhadap kualitas model 3d, serta perbedaan interface dalam proses deliniasi manual, serta teknik pengolahan citra digital yang digunakan masing-masing perangkat lunak.

The development of Photogrammetry technology has opened up new opportunities in rock fragmentation analysis in the mining industry. This study aims to analyze the accuracy of photogrammetry-generated three-dimensional (3D) models for rock fragmentation size estimation using two digital analysis software, namely Split Desktop and WipFrag. The 3D model was obtained through image processing using Agisoft Metashape which was then used as the basis for taking pictures for fragmentation analysis. The images were taken from various angles on the 3D model to analyze the particle size distribution in both software. Furthermore, the fragmentation size estimation results from Split Desktop and WipFrag were compared with actual measurement data in the field as a comparison reference. The analysis was conducted by calculating the Root Mean Square Error (RMSE) value between each software result and the field data. The research shows that wipfrag software is closer to the actual value than Split Desktop software with an average RMSE of wipfrag 1.97 cm and split desktop with an average of 3,46 cm. The results of this study show that there are differences in accuracy between the two software, which are caused by differences in fragment measurement algorithms, sensitivity to the quality of 3D models, as well as differences in interfaces in the manual delineation process and digital image processing techniques used by each software.