Using affordable data capturing devices for automatic 3D city modelling

• Main Authors: Alizadehashrafi, B., Abdul Rahman, A.
• Format: Conference or Workshop Item
• Language: English
• Published: 2017
• Subjects: G70.212-70.215 Geographic information system
• Online Access: http://eprints.utm.my/id/eprint/97080/1/AAbdulRahman2017_UsingAffordableDataCapturingDevices.pdf; http://eprints.utm.my/id/eprint/97080/; http://dx.doi.org/10.5194/isprs-archives-XLII-4-W6-9-2017
• Institution: Universiti Teknologi Malaysia

In this research project, many movies from UTM Kolej 9, Skudai, Johor Bahru (See Figure 1) were taken by AR. Drone 2. Since the AR drone 2.0 has liquid lens, while flying there were significant distortions and deformations on the converted pictures of the movies. Passive remote sensing (RS) applications based on image matching and Epipolar lines such as Agisoft PhotoScan have been tested to create the point clouds and mesh along with 3D models and textures. As the result was not acceptable (See Figure 2), the previous Dynamic Pulse Function based on Ruby programming language were enhanced and utilized to create the 3D models automatically in LoD3. The accuracy of the final 3D model is almost 10 to 20 cm. After rectification and parallel projection of the photos based on some tie points and targets, all the parameters were measured and utilized as an input to the system to create the 3D model automatically in LoD3 in a very high accuracy.