Texture models are potentially very useful for automated urban data revision. We propose a ‘model-based change detection algorithm’ using three-dimensional urban data. In this algorithm, temporal images are projected on a common three-dimensional geometry model and the latest textures are compared with previous textures to detect an object’s change accurately. In addition, a shadow simulation w...

Eduardo Rojas is a Senior Urb an Planner with the Inter-American Development Bank, supervising the bank's urban deve lopment portfolio. H e is currently desig ning several urban h eritag e preservation and revitalization loans and technical coop erations. He is task manager f or the Quito Historic Center Rehabilitation Loan granted to Ecuador. His degrees are in architecture, urban planning, an...

Visualization of city scenes is important for many applications including entertainment and urban mission planning. Models covering wide areas can be efficiently constructed from aerial images. However, only roof details are visible from aerial views; ground views are needed to provide details of the building facades for high quality ’fly-through’ visualization or simulation applications. We pr...

In this paper we present a practical approach for generating an occlusion-free textured 3D map of urban facades by the synergistic use of terrestrial images, 3D point clouds and area-based information. Particularly in dense urban environments, the high presence of urban objects in front of the facades causes significant difficulties for several stages in computational building modeling. Major c...

Visualization of city scenes is important for many applications including entertainment and urban mission planning. Models covering wide areas can be efficiently constructed from aerial images. However, only roof details are visible from aerial views; ground views are needed to provide details of the building facades for high quality ’fly-through’ visualization or simulation applications. We pr...

The Iranian government has placed new emphasis on urban renewal through participatory approaches in recent years. The main target areas are called deteriorated urban fabrics, characterized by micro-lots, impenetrability, and lack of sustainability. In Tehran, renovation of deteriorate urban fabrics has been initiated through dedicated neighborhood facilitation offices. This paper analyzes the a...

Finding a method to evaluate people’s emotional responses to urban spaces in a valid and objective way is fundamentally important for urban design practices and related policy making. Analysis of the essential qualities of urban space could be made both more effective and more accurate using innovative information techniques that have become available in the era of big data. This study introduc...

today,  iran is faced with a considerable amount of old and timeworn textures. based on  the estimates of  the ministry of  housing and urban development, there are more than 50,000 hectares of urban  old texture in iran, that  due to the lack of credits and understanding of quality and characteristics of such regions, the government has faced with several problems in planning and defusing the ...