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All Journal Teras Jurnal Jambura Geoscience Review El-Jughrafiyah : Jurnal Geografi dan Terapannya The Indonesian Journal of Computer Science
Ketut Tomy Suhari
Insitut Teknologi Nasional Malang
Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Physics Social Sciences

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Komparasi Model 3D Jembatan dari Pemotretan Konvergen dan Normal Menggunakan Drone Nicolas Alnando; Martinus Edwin Tjahjadi; Ketut Tomy Suhari
Jambura Geoscience Review Vol 4, No 2 (2022): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v4i2.13437

Abstract

CRP (Close Range Photogrammetry) is a measurement technique that can extract 3D points from an image. This study aims to compare convergent, normal, and combined shooting using drones with close-range photogrammetry methods. In the CRP technique, shooting is carried out using the DJI Phantom 4 Pro Drone with convergent and normal shooting techniques and a combination of both shots. Convergent shooting is done by positioning the drone centered on one point by forming a cone against the bridge object with an angle ranging from 40-90 degrees. While shooting normally is done by positioning the drone by facing a straight line against the object. A comparison of concurrent and normal shooting was carried out to find out better 3D Modeling results. The final result of this research is the visualization of a 3D model object that has a complete texture and resembles its original state in the field, as evidenced by the RMSE value of the 3D convergent model being 0.0940 m, for the RMSE value of the normal 3D model is 0.0882 m. The RMSE 3D value of the combination model is 0.0907 m. From each RMSE value above, a good 3D model visualization is produced using normal shooting because the resulting RMSE value is smaller than other shooting techniques.
Terrestrial Laser Scanning for 3D Assets Registry Suhari, Ketut Tomy; Purwanto, Hery; Sai, Silvester Sari
The Indonesian Journal of Computer Science Vol. 12 No. 2 (2023): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i2.3195

Abstract

This study aimed to assess the feasibility of using terrestrial laser scanning (TLS) technology for creating 3D asset registries in facilities management. The research utilized a case study approach to scanning an industrial facility, and the resulting data was processed to create a 3D model of the assets. The study found that TLS technology can produce highly accurate and detailed 3D models of assets, which can aid in asset management and maintenance. However, the technology has some limitations, such as cost and the need for skilled operators. The study suggests that TLS technology can be a valuable tool for asset management and recommends further research in this area.
Pemodelan Simulasi Aliran Udara terhadap Bangunan 3d Berbasis CityGML dan Computational Fluid Dynamics Utami, Aprillia Rahmi; Suhari, Ketut Tomy; Ujang, Muhammad Uznir; Tjahjadi, Martinus Edwin
The Indonesian Journal of Computer Science Vol. 12 No. 6 (2023): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i6.3486

Abstract

Lingkungan di wilayah kota Malang mengalami pertumbuhan permukiman yang semakin padat serta tata kota semakin tak teratur, sehingga menyebabkan suhu menjadi panas dan warga menjadi tidak nyaman. Angin adalah pergerakan udara yang terjadi karena adanya tekanan udara dari tekanan tinggi ke tekanan rendah. Untuk mengetahui pergerakan aliran udara tersebut, pada penelitian ini dibuat suatu bentuk pemodelan simulasi aliran udara CFD dengan menggunakan Ansys dan bentuk pemodelan 3D CityGML pada LoD 2. Pembuatan simulasi aliran udara ini menggunakan data angin yang diperoleh dari BMKG dan dianalisa untuk membandingkan nilai RMSE dengan data observasi lapangan yang didapatkan dengan menggunakan 2 alat hand anemometer digital. Hasil simulasi aliran udara menunjukkan pengaruh model 3D LOD2 terhadap aliran angin berupa perubahan arah dan kecepatan.
Developing Digital Interactive Exploration of Historical Places with Blending BIM and Virtual Reality Suhari, Ketut Tomy; Purwanto, Hery; Andinisari, Ratri
The Indonesian Journal of Computer Science Vol. 13 No. 1 (2024): The Indonesian Journal of Computer Science (IJCS)
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i1.3732

Abstract

The advancement of technology has opened new possibilities for exploring and experiencing historical places. This research aims to develop a digital interactive exploration platform that blends BIM and VR to provide an immersive and informative experience of historical sites. The study focuses on Candi Kidal, located in Kecamatan Tumpang, Kabupaten Malang, as the primary study area. The proposed method involves the integration of BIM and VR technologies to create a detailed and interactive virtual representation of Candi Kidal. The BIM models are the foundation for capturing and integrating various data sources. These models are then transformed into a VR environment, allowing users to explore the site virtually, interact with objects, and access relevant historical information. Data collection methods include site surveys, and historical research in the field. The BIM models are developed using software tools such as Autodesk Revit, while the VR environment is created using platforms like Unity3D. The development of the digital interactive exploration platform involves programming and scripting languages such as C#. The results demonstrate the effectiveness of developed platform in providing an immersive and informative experience for Candi Kidal. Users can navigate the virtual environment, view detailed architectural elements, and access historical information through interactive interfaces. The significance of this research lies in its potential to enhance the preservation, promotion, and accessibility of historical places. By blending BIM and VR technologies, the digital interactive exploration platform offers a unique and engaging experience that can attract a wider audience and foster a deeper understanding of cultural heritage.
Pembangunan Digital Twin Berbasis WebGIS dan 3D Oblique Photogrammetry Suhari, Ketut Tomy; Sunaryo, Dedy Kurnia; Purwanto, Hery; Erlinda, Luh Kadek Dera
EL-JUGHRAFIYAH Vol 5, No 2 (2025): El-Jughrafiyah : August, 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jej.v5i2.38124

Abstract

Digital Twin merupakan representasi virtual dari objek fisik yang memungkinkan analisis serta pemantauan kondisi secara real-time. Studi ini mengkaji pemanfaatan drone Trinity Pro dengan metode oblique photogrammetry dalam membangun Digital Twin wilayah Kota Malang. Pengambilan data dilakukan melalui dua kali penerbangan dengan total 882 foto pada misi pertama dan 755 foto pada misi kedua. Hasil pemrosesan menghasilkan model 3D dengan resolusi spasial 2,2 cm (GSD) dan tingkat ketelitian horizontal CE90 sebesar 0,047 meter serta ketelitian vertikal LE90 sebesar 0,822 meter, yang sesuai dengan standar Badan Informasi Geospasial (BIG). Model 3D kemudian diintegrasikan ke dalam platform WebGIS berbasis CesiumJS sehingga dapat divisualisasikan secara interaktif, sementara distribusi dan kolaborasi data difasilitasi melalui GitHub.io. Produk ini berpotensi dimanfaatkan dalam pengembangan kadaster 3D maupun perencanaan tata kota berbasis data. Temuan penelitian menegaskan peran Digital Twin sebagai solusi inovatif dalam mendukung pengelolaan infrastruktur serta mewujudkan pembangunan perkotaan yang lebih responsif dan berkelanjutan.
Pembuatan Model 3D Jalan Raya Bayat Untuk Keperluan Existing Menggunakan Metode Foto Udara (UAV) di Klaten Priambodo, Dwiki Altito; Tjahjadi, Martinus Edwin; Suhari, Ketut Tomy
Teras Jurnal : Jurnal Teknik Sipil Vol. 12 No. 1 (2022): Volume 12 Nomor 1, Maret 2022
Publisher : UNIVERSITAS MALIKUSSALEH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tj.v12i1.654

Abstract

Abstrak Penggunaan teknologi pada geodesi serta geomatika, yaitu teknologi fotogrametri udara unmanned aerial vehicle (UAV) dapat berguna dalam mengetahui kondisi jalan raya terkini. Untuk mengetahui hal tersebut, dapat dilakukan pembuatan suatu model 3 dimensi jalan raya, sehingga mendapatkan informasi-informasi terkini dari jalan raya. Penggunaan teknologi tersebut digunakan agar memperoleh data yang digunakan dalam pembuatan model 3 dimensi. Pembuatan model tersebut dilakukan menggunakan metode level of detail (LoD)0-3 jalan raya dan dilakukan perhitungan uji validasi geometrik jalan raya, yaitu lebar jalan raya mencakup perhitungan nilai root mean square error (RMSE) serta standar deviasi. Penelitian ini memperoleh visualisasi model 3 dimensi jalan raya, kemampuan foto udara hanya mengidentifikasi objek jalan dalam pembuatan model 3 dimensi jalan raya, dan hasil uji validasi geometrik jalan raya dengan RMSE 0.0455141 meter (lapangan dengan foto), 0.155467038 meter (lapangan dengan model), serta standar deviasi 0.078829245 meter (lapangan dengan foto), 0.310609926 meter (lapangan dengan model). Visualisasi model 3 dimensi jalan raya dengan metode level of detail (LoD)0-3 telah dilaksanakan. Kemampuan foto udara hanya mengidentifikasi objek jalan pada pembuatan model 3 dimensi jalan raya. Hasil pemodelan 3 dimensi jalan raya dilakukan uji validasi untuk mengetahui kedekatannya dengan model sebenarnya. Kata kunci: jalan raya, 3 dimensi, level of detail, validasi,   Abstract The use of technology in geodesy and geomatics, thats aerial photogrammetry technology using an unmanned aerial vehicle (UAV) useful to realize the current roadway condition. To find out, making a roadway 3-dimensional model is done, so thats the current of roadway information. That technology is used to obtain data in the manufacturing 3-dimensional model. The modeling was performed using the level of detail (LoD)0-3 method of the roadway and performed the calculation roadway geometrics validation test, thats the width of roadway including the calculation of root mean square error (RMSE) and standard deviation. This study obtained a visualization of roadway 3-dimensional model, the ability of aerial photo to only identification of roadway object in the manufacture of a 3-dimensional model, and the results of the test with RMSE 0.0455141 meters (field with photos), 0.155467038 meters (field with model), and standard deviation 0.078829245 meters (field with photos), 0.310609926 meters (field with model). The visualization of roadway 3-dimensional model with the level of detail (LoD)0-3 method already implemented. The ability of aerial photos to only identification of roadway objects in the manufacture of roadway 3-dimensional model. The 3-dimensional models of the roadway model are validated to determine its proximity to the actual model. Keywords: roadway, 3-dimensional, level of detail, validation
Co-Authors Dedy Kurnia Sunaryo Erlinda, Luh Kadek Dera Hery Purwanto Hery Purwanto Martinus Edwin Tjahjadi Nicolas Alnando Priambodo, Dwiki Altito Ratri Andinisari Silvester Sari Sai Ujang, Muhammad Uznir Utami, Aprillia Rahmi