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The growth of the built environment is a global environmental change processes that can be measured and monitored with Earth Observation. That growth is expected to continue as populations continue to both increase and urbanize. The Global Human Settlement Layer (GHSL) project was set up to measure and monitor the global built up environment and its changes [1]. The GHSL layers presented herein are...
In this paper we examine the impact of the growing urbanization of Dar es Salaam, Tanzania, on the forest areas around the city. Since 1990 the city has seen an annual population growth rate of over 4%. We document the expansion of the city over the last 30 using the Global Human Settlement Layers, derived from the global Landsat archive. At the same time we show the depletion, of the surrounding...
The paper addresses built up information extraction from high resolution imagery from two satellites, ZY-1 02C and SPOT-5. The testing is part of a larger experiment that explores spectral, textural and morphological satellite image properties aiming to extract built up information for global built up mapping and characterization. In this work we test SPOT-5 and ZY-1 02C satellites for textural properties...
This paper explores a new method for quantitative estimation of building density and settlement edges based on textural measurements. The evaluation employs an ordered multi-scale, linear regression scheme in which scale corresponds to spatial resolution and is represented by a kernel. The kernel size in the experiment described, ranges from 30 to 1000 meters for a test area of approximately 10.6×26...
In this paper a change detection analysis of a multitemporal SAR sequence is presented. The study has been performed through the statistical analysis of an anisotropic rotation-invariant built up presence index over time.
GMOSS (Global Monitoring for Security and Stability) is a network of excellence (NoE) in the Aeronautics and Space priority of the 6th Framework Program of the European Union lasting from 2004 to 2008. Being part of the "Global Monitoring of Environment and Security" (GMES) program, GMOSS aimed to integrate the European civil security research while assembling a critical mass of resources,...
A procedure for the calculation of a "built-up presence index" is presented. The index is based on fuzzy rule-based composition of anisotropic textural measures derived from the satellite data by the gray-level co-occurrence matrix (GLCM). The case study includes multi-temporal analysis, wide area coverage (65times135 kilometers) with multiple datasets, scattered settlements, and presence...
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