Corner lines, line signatures related to building facades in SAR images, are commonly related to signal double reflections, either specular or diffuse. However, the scene properties building orientation, building shape, surface roughness often do not correspond to this expectation. This paper presents a 3D representative simulation case study, based on ray tracing and a detailed facade model, i...

In this study we investigate the release of metallic silver nanoparticles (Ag-NP) from paints used for outdoor applications. A facade panel mounted on a model house was exposed to ambient weather conditions over a period of one year. The runoff volume of individual rain events was determined and the silver and titanium concentrations of 36 out of 65 runoff events were measured. Selected samples...

Marble envelopes represent a relatively common architectural solution used in variety of historic, modern and contemporary building facades. White marble envelopes have been shown to reduce solar heat gains, while improving indoor thermal comfort and energy efficiency in summer time. While marble is useful in this context, the urban atmosphere accelerates the degradation of marble elements. Thi...

In this paper we propose to link Markov Chain Monte Carlo – MCMC in the spirit of (Dick, Torr, and Cipolla, 2004) with information from Implicit Shape Models – ISM (Leibe and Schiele, 2004) and with Plane Sweeping (Werner and Zisserman, 2002) for the 3D interpretation of building facades, particularly for determining windows and their 3D extent. The approach starts with a (possibly uncalibrated...

Media facades in urban spaces offer great potential for new forms of collaborative multi-user interaction. We present a way to directly interact with facades at-adistance through live video on mobile devices. We extend the Touch Projector interface to accommodate multiple users by showing individual content on the mobile display that would otherwise clutter the facade's canvas or distract other...

Building facades typically consist of multiple similar tiles which are arranged quite strictly in grid-like structures. The proposed method takes advantage of translational symmetries and is able to analyze and segment facades into tiles assuming that there are horizontal and vertical repetitions of similar tiles. In order to solve this quite complex computer vision task efficiently a Monte Car...

Sound reflections at building facades are generally calculated applying the mirror image method and therefore it is assumed generally that specular reflections occur. But in many cases of structured surfaces with balconies, jutties and other irregularities these facades are obviously not acoustically plain and therefore diffuse reflections may occur. With financial support by the German BAST (B...

We propose a novel three-layered approach for semantic segmentation of building facades. In the first layer, starting from an oversegmentation of a facade, we employ the recently introduced machine learning technique Recursive Neural Networks (RNN) to obtain a probabilistic interpretation of each segment. In the second layer, initial labeling is augmented with the information coming from specia...

Three dimensional building models have become important during the past years for visualization of touristic or historic objects. Detailed facade models are essential for realistic impressions on a terrestial observer. Such models require both a geometric component that describes the shape of the building or parts of it as well as a texture component that provides color information and depicts ...