This study presents an approach wherein photographs with a high degree of overlap are clicked using a digital camera and used to generate three-dimensional (3D) point clouds via feature point extraction and matching. To reconstruct a building model, an unmanned aerial vehicle (UAV) is used to click photographs from vertical shooting angles above the building. Multiview images are taken from the...

Extraction and analysis of building façades are key processes in the three-dimensional (3D) building reconstruction and realistic geometrical modeling of the urban environment, which includes many applications, such as smart city management, autonomous navigation through the urban environment, fly-through rendering, 3D street view, virtual tourism, urban mission planning, etc. This paper propos...

This work explores the double effect of urban compactness on building energy performance in a Mediterranean climate, namely the increase of urban heat island (UHI) intensity and the decrease of solar radiation availability on building façades. The energy demand of a test apartment has been calculated under varying conditions of UHI intensity and solar radiation for different urban textures. Res...

Widening gap in housing need and housing supply to the populace has led to an apparent housing crisis in Nigerian urban centres. Various studies concluded that an acquisition of indigenous building materials is the way out of the housing crisis. The National Housing Policy in Nigeria has recognized earth in form of Compressed Stabilized Laterite Bricks (CSLBs) as one of the abundant indigenous ...

To develop reliable computer models for the bluff body flow and transport of pollutants or chemical and biological (CB) agents in urban environments requires accurate measurements of the basic flow fields for carefully controlled, well-known conditions. Fluid modeling in an Industrial Wind Tunnel provides an opportunity to produce accurate simulations of the bluff body flow and transport of urb...

Urban building energy modeling (UBEM) seeks to evaluate strategies optimize use at urban scale support a city's goals. Prototype models are usually developed represent typical characteristics of specific type, construction year, and climate zone, as detailed individual buildings difficult obtain. This study investigated the Italian stock, developing 46 prototypes, based on for residential offic...

Spatial data collection in urban environments for the extraction of building inventory information is important for many applications such as urban planning, storm water management, hazard mitigation, vulnerability assessment, and loss estimation to name a few. Creating and updating building inventory databases in large and developing urban environments benefits from efficient data acquisition ...

Building extraction in urban areas is one of the difficult problems in image understanding and photogrammetry. Building delineations are needed in cartographic analysis, urban area planning, and visualization. Although one pair of images is adequate to find the 3D position of two visibly corresponding image features it is not sufficient to extract the entire building due to hidden features that...