Automatic building detection plays an important role in many applications. Traditionally, buildings were detected from monocular or multi-view images, DEM or DSM, and laser scanner data. Oblique imagery is a relatively new data source with distinct advantages: it provides detailed information on facades and multiple views from various perspectives. In this paper we present exploration tests usi...

Three dimensional building models have become important during the past years for various applications like urban planning, enhanced navigation or visualization of touristic or historic objects. Altough for some applications geometric data alone is sufficient, for visualization purposes a more realistic representation with textured surfaces is necessary. The associated textures from buildings a...

This paper provides a brief, non-exhaustive overview of the status of the application of CFD in building performance simulation for the outdoor environment. It focuses on four topics: (1) pedestrian wind environment around buildings; (2) wind-driven rain on building facades; (3) convective heat and mass transfer coefficients at building surfaces; and (4) air pollutant dispersion around building...

This paper proposes an approach for the detection and partition of planar structures in dense 3D point clouds from facades. The aim is the creation of a polygonal model with a considerably lower complexity than the original data set. We perform a robust detection of the dominant facade planes and apply a sweep based scheme in order to detect structures like windows, doors, balconies in those pl...

The real time rendering of complex virtual city models has become more important in the last few years for many practical applications like realistic navigation or urban planning. For maximum rendering performance, the complexity of the geometry or textures can be reduced by decreasing the resolution until the data set can fully reside on the memory of the graphics card. This typically results ...

The network-based visualization of large photo-realistic 3D landscape and city models has received significant attention over the last five years in the computer graphics and network community. To make such 3D geoweb services appealing to a large audience, 3D city models must reach a sufficient level of realism and faithfulness. The first problematic was the transmission and visualization of su...

The long-term pressure on a properly functioning modern infrastructure is the main reason for the development of new construction elements and technological processes. In the case of buildings, this development can offer original and significant improvements in aesthetic, functional and economical terms. Then the implemented structural elements and technological systems have a major impact on t...

In this study, a hierarchical method for segmenting buildings in a digital surface model (DSM), which is used in a novel framework for 3D reconstruction, is proposed. Most 3D reconstructions of buildings are model-based. However, the limitations of these methods are overreliance on completeness of the offline-constructed models of buildings, and the completeness is not easily guaranteed since i...

Building facades have evident effects on indoor thermal comfort. Hence, the basis of a multifunctional residential building in Sydney, Australia, this research uses DesignBuilder software to optimize passive system design facades. This also analyses influences changing window glazing type, adding additional shading devices and material exterior wall Results show that number uncomfortable hours ...