One of the most important methods of saving energy and providing indoor comfort conditions of buildings is the careful design of the façades. A “double skin glass façade” is optimally one of the best options that control the heat interaction between indoor and outdoor spaces. Two kinds of heating energy is usually transmitted through exterior envelope “conduction” and “radiation”. Double skin g...

The building façade model is the most prominent streetscape feature for rendering virtual street models. This paper aims to develop a method to identify street obstacles which hinder photo-realistic texturing of building façade. In order to achieve this, the presented method focuses on two research components. Firstly, we develop an effective grid-based line analysis method to differentiate ima...

Working on building façade is dangerous. Many accidents have occurred, and many workers have lost their lives. We have researched to apply robot systems to prevent these accidents. In this paper, we purposed an algorithm for sensor system of a gondola-typed building façade maintenance robot. The robot system moves on the building façade autonomously, or by remote control. Therefore, window area...

This article outlines a new semi-automatic approach for generating accurate BIM facade models for existing buildings from laser and image data. Two new developments for as-built BIM modelling are presented in this article. The first is a new library of reusable parametric objects designed for modelling classical architectural elements from survey data. These library objects are dynamic and have...

Interest points on the building façade are the basic element for 3-D building modeling and texturing. Grouping these points to the same or separate buildings is a fundamental process for establishing building models and detecting building boundaries. The grouping process is generally achieved by analyzing the geometric relation and the distances between the points in the object space, which req...

Increased global urbanization has caused tall buildings to become an inevitable building form making the façade and especially the glazing areas of paramount importance for the overall heat loss and heat gain of the building. The substantial technological advances in insulating glass and glazing systems made during the past 25 years have improved the possibility for designing well-functioning b...

In recent years, the demand for highly detailed building models has clearly risen. Most of the details, which characterize a building, come from its façade. It is obvious that such façade detail is ideally acquired from ground-based sensors. For any street-level data acquisition system, a common problem arises: that of occlusions and hence incomplete data. In the past we have shown how multiima...

The paper presents our work on the automatic reconstruction of complete LOD3 building models. Existing LOD2 models are refined by adding 3D façade geometry with explicit semantic information to the planar facades. Aiming at robust and realistic façade structures, independent of the quality and availabilty of sensor data, object knowledge in the form of a grammar is automatically inferred and ap...

The analysis of a glass double skin façade equipped with integrated movable shading devices is presented, employing three different modelling levels: optics of materials, fluid dynamics of the double skin façade and building energy balance; the aim is to optimize both winter and summer energy performance. The model is developed for a façade oriented towards the south and taking into account the...