Generation of 3D City Model from Multi-Sensor Geo- Spatial Image Data and Its Visualization

Generation of 3D city models has been evolving to be one of the most relevant and active research topics as many application areas require them. Planning of Telecommunications, Urban development, Managing disasters, Prevention of Hazards, City design, developing TV games, etc., are some of the application areas where 3D city models are precisely and accurately needed. Several concepts from Geo-Information System (GIS) were taken for transmitting traditional 2D models to 3D City Models. The paper describes the Generation of 3D city model in a Semi-Automated Approach. Different multi-sensor data/Images were studied and analyzed, and the images were pre-processed using image processing techniques. The 3D city model generation in semi-Automated approach involves development of prototype software which eventually can be utilized in the Automatic generation of 3D city model. The entire prototype software is designed and developed using MATLAB platform. The generated 3D city model is represented or visualized using suitable visualization techniques.