An approach is presented for detecting the buildings from high resolution pan-sharpened IKONOS imagery through binary Support Vector Machines (SVM) classification. In addition to original spectral bands, the bands nDSM (normalized Digital Surface Model), NDVI (Normalized Difference Vegetation Index), PC1, PC2, PC3, and PC4 (First, Second, Third, and Fourth Principal Components), are also includ...

The demand for 3D city-scale models has been significantly increased due to the proliferation of urban planning, city navigation, and virtual reality applications. We present an approach to automatically reconstruct buildings densely spanning a large urban area. Our method takes as input calibrated aerial images and available GIS meta-data. Our computational pipeline computes a per-building 2.5...

Most of the urban models nowadays consider towns as a flat area without sloping zones. However, in order to obtain a realistic model of a city we need to include the information provided by its Digital Elevation Model (DEM). A global representation using the surface topography and the information usually given by an urban GIS (the geometry of buildings, blocks and streets and additional data ab...

The geometric visualisation of the buildings as the 3D solid structures can provide a comprehensive vision in terms of the assessment and simulation of solar exposed surfaces, which includes rooftops and facades. However, the main issue in the simulation a genuine data source that presents the real characteristics of buildings. This research aims to extract the 3D model as the solid boxes of ur...

Abstract Research on new seismic sources and data has already performed in 2016 to 2017. Four shallow crustal fault were observed surrounding the city of Semarang, capital Central Java Province, Indonesia. The parameters related with mechanism (reverse fault) maximum magnitude prediction (6.5 Mw) for each was also released based 2017 research. Following this research, structural evaluation espe...

The total damage cost is the sum of renovation cost and amenity loss. We show that amenity loss can be inferred from renovation expenditures without carrying out a contingent valuation; the amenity loss is approximately equal to the renovation cost. We review the methodologies for calculating air pollution damage to buildings, as well as the data available for their implementation in France. Th...

Many tasks in the context of urban planning presume 3D city models, where buildings are represented separately from the terrain surface e.g. by 3D boundary representations. One of the most promising approaches to solve the challenging task of automatic 3D city model acquisition is the integration of multiple data sources to benefit from the complementary types of information. In our approach he...

In this article we present a framework for modeling a building with a single Digital Elevation Model (DEM). The model is constructed in two stages. A first stage segments the DEM into planar surface patches to describe the building. Then, a polygonalisation stage generates the final polygonal model of the building by using constraints. We use robust estimation methods at different stages of our...

Measurements and analyses of space-time structure of random pressure fields and associated area-averaged loads acting on prismatic building models in simulated atmospheric flows are presented. The objective of this study is threefold: first, a broadening of our understanding of wind induced surface pressure fluctuations around buildings; second, gaining insight into the aerodynamics of prisms i...

This paper presents the integration of 50 cm 4 band (R, G, B, and infrared) imagery with 80 cm LIDAR, and 2.5 meter posting IFSAR surface elevation models for urban scene analysis. The goal is to characterize urban scenes in terms of buildings, trees, roads, other geometrical structures, open areas, and various natural land covers. This type of information is useful for applications such as urb...