The establishment and visualization of large, reality-based 3D terrain and city models has received significant attention over the last few years. However, the recent progress in 3D data capturing generated very huge and complexe 3D models. This poster presents tools for geo-visualization based on multi-resolution representations of different objects (terrain, buildings, vegetation, etc). Thank...

The origin of the concept of using contextual information of Correlation in neighborhood of a pixel for change detection is the simple geo-statistical fact that the same geographical area (neighborhood window) on two dates of imagery will tend to be highly correlated if no or little change has occurred and uncorrelated when change occurs. The main objective of this study is to investigate the u...

Geo raster web services provide access to detailed and rich sets of geospatial information used in multidisciplinary earth system science research, such as solar, atmosphere, ocean, cryosphere, solid earth, and biosphere research. However, the heterogeneity of services deployed in these disciplines tends to weaken the interoperability of today’s highly multidisciplinary earth system science res...

To date, use of the full potential of geo-information is not often applied in the daily practice of policy makers. The main questions explored by this research are: Why is geo-information not widely used in policy and how can this be improved? A conceptual framework was developed to evaluate the use of geo-information. For five cases, the use of geo-information was evaluated by means of this fr...

Despite a lot of recent research, photogrammetric reconstruction from crowd-sourced imagery is plagued by a number of recurrent problems. (i) The resulting models are chronically incomplete, because even touristic landmarks are photographed mostly from a few “canonical” viewpoints. (ii) Man-made constructions tend to exhibit repetitive structure and rotational symmetries, which lead to gross er...

A geometric graph G is a simple graph G together with a straight line drawing of G in the plane with the vertices in general position. Two geometric realizations of a simple graph are geo-isomorphic if there is a vertex bijection between them that preserves vertex adjacencies and non-adjacencies, as well as edge crossings and non-crossings. A natural extension of graph homomorphisms, geo-homomo...

This research paper focuses on the important method of image matching for collecting ground control points and automated precise geo-registration high-resolution satellite imagery. The study aims to improve success rate between incoming images reference chips generated from aerial color ortho-images by using pan-sharpened images. results show that use leads higher rates due similar spectral ran...