This paper introduces a fast approach for automatic dense large scale 3D urban reconstruction from video. The presented system uses a novel multi-view depthmap fusion algorithm where the surface is represented by a heightmap. Whereas most other systems attempt to produce true 3D surfaces, our simplified model can be called a 2.5D representation. While this model seems to be a more natural fit t...

This paper discusses the making of three-dimensional geospatial data infrastructure (3D GDI) for Malaysia. The main component of the initiative is 3D city models with CityGML as the standard for data modelling, transfer and exchange. Various aspects of 3D city modelling especially on the construction of the models and texturing of facades via dynamic pulse function are described. The generated ...

One of the first steps during evaluation of terrestrial LIDAR measurement is the co-registration of the data sets, which are collected from different stations and their transformation to a suitable reference coordinate system. As it is demonstrated within the paper, this can be achieved automatically, if low-cost components are used for direct georeferencing parallel to LIDAR measurement. By th...

Infrared (IR)-radiation of buildings can be captured by thermal image data. Nowadays, thermal images of different parts of buildings acquired in various scales are analysed, however conducted analysis concern mainly the radiometric characteristics, avoiding dealing with the geometry of the images. Aim of our work is the automated texture mapping of existing 3D building models with images record...

A methodology is presented for estimating, at the city scale, the amount of biocide released from facades during rain events. The methodology consists of two elements. First, leaching of a single facade is simulated using a two-region model, one region for the biocide in the facade and the other for that in the flow over the facade surface. In the latter region, water advection moves the biocid...