The city of Istanbul is currently the largest CityGRID® customer, with approximately 1.5 million building models. The city model was constructed from LIDAR point cloud data, with the main aim of automatically modeling the main roof shapes without great interactive effort. A refinement of the city model by detailed modeling and automatic texturing (currently ~ 400km² from vertical images) is successively carried out using CityGRID®. A complete automatic texturing of the entire city model with highly overlapping aerial images and mobile mapping images is planned. The main application areas of the city model include project visualisations, visibility analyses, urban energy infrastructure and public transport planning. The city model will be made accessible to the public in the near future.

Project Parameters

• Evaluation: Automatic
• Detail: main roof shape
• Project start: 2013
• Number of buildings: 1.500.000
• Roof overhang: No
• Cadastre-sharp: Partial