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Geospatial information is fast becoming a key data resource for a locality or country around the world. In recent years there have been major innovations in location based applications. Geographic Information Systems (GIS) are helping all spheres of science. It is spawning new public services, helping developmental planning with unprecedented precision and playing vital role in national resource management...
Cross-sensor image registration, orthorectification, and geopositioning of imagery are well-known problems whose solutions are difficult, if not impossible, to automate. Registration of radar to optical imagery typically requires a manual solution, as does the registration of imagery over rugged terrain or urban areas, where foreshortening and layover present formidable obstacles to successful automation...
This paper applies a variety of GIS techniques to examine the spatial pattern and extent of high amenity zones (HAZ) in selected cities of the U.S. and Guangzhou, China. HAZs are adjacent to downtowns and represent high density upscale residential areas whose residents support neighborhood retailing and service employment that can often result in the misclassification of the areas as employment centers...
In this paper we investigate large scale view based localization in urban areas using panoramic images. The presented approach utilizes global gist descriptor computed for portions of panoramic images and a simple similarity measure between two panoramas, which is robust to changes in vehicle orientation, while traversing the same areas in different directions. The global gist feature has been demonstrated...
This paper tackles the problem of vehicle's geo-localisation in urban areas. For this purpose, global positioning system (GPS) receiver is the main sensor. But the use of GPS alone is not sufficient in many urban environments. GPS has so to be helped with dead-reckoned sensors, map data, cameras, range finder ... In this paper, we propose a novel approach to compute observation of the absolute pose...
The context of this study is 3D city modeling. The goal is to automatically compute the initial registration of a GIS model and a video sequence. The proposed method is divided into two parts. First, a coarse registration is obtained using GPS data and the theory of epipolar geometry. Then, a simultaneous pose and correspondence determination is done thanks to RANSAC algorithm applied on line features...
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