These days 3d models are used in a huge variety of applications and the demands in quality and quantity are steadily growing. At the same time, the extraction of man-made objects from measurement data is quite traditional. Often, the processes are still point based, with the exception of a few systems which allow to automatically fit simple primitives to measurement data. The need to be able to...

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...

In Europe, national acoustic classification schemes for housing exist in about ten countries. The schemes specify a number of quality classes, reflecting different levels of acoustic protection, and include class criteria concerning several acoustic aspects, main criteria being about airborne and impact sound insulation between dwellings, facade sound insulation and service equipment noise. The...

Abstract Terraces and tenements provide the facades upon which are inscribed texts decorative images. Embedded in walls, these ‘plaques’ convey meanings memories that saturate built environment with references to past. Evidence based on property surveys, maps archival documents form empirical basis from it is concluded images inscriptions presented a wider geo-political historical awareness eve...

Equipping building envelopes with an additional layer is effective measure for improving the overall thermal and daylighting performance reducing energy consumption of buildings. This study investigated user acceptance energy-saving retrofitting measures in office buildings, reporting on view perception emotional response towards ETFE double-skin façades (DSF). Virtual Reality (VR) physics-base...

We take advantage of human intuition by encoding facades into a procedural representation. Our user-assisted inverse procedural modeling approach allows users to exploit repetitions and symmetries of facades to create a split grammar representation of the input. Terminal symbols correspond to repeating elements such as windows, window panes, and doors and their distributions are encoded as the ...

Extracting 3-dimensional structure from real-world imagery and rendering it from unrestricted viewpoints is an important problem in computer vision, and increasingly, computer graphics. Despite many years of research, a system that automatically recovers realistic 3-D models from images remains elusive; most practical systems require signi cant human input. However, unlike automatic algorithms,...

Recent advances in scanning technologies allow large-scale scanning of urban scenes. Commonly, such acquisition incurs imperfections: large regions are missing, significant variation in sampling density, noise and outliers. Nevertheless, building facades often consist structural patterns and self-similarities of local geometric structures. Their highly-structured nature, makes 3D facades amenab...

Purpose We researched an automated and robotic facade maintenance robot. This robot can protect people against safety hazards, and save labour cost for building facade maintenance. Our platform is gondola type. Accurate and robust height estimation is necessary for automation. We propose a methodology for height estimation. Method Even though there are many sensor systems for height estimation,...