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Radon is the only one gas which produced in the process of mining uranium. It's very harmful to the human body. In this paper, the feed-forward neural network (BP ANN) structural features, data analysis, the learning process and so on are analyzed. We set up radon of Fuzhou Jin-An Uranium Industry Limited Company study and training for the state samples and samples of the forecast, and then establish...
As the most important field of research, curve generalization is still unfading after several decades' years. Because of the importance of line expression in map elements, and on the other hand the faultiness and juvenility of theory and technology of cartographic generalization and linear generalization their own, This paper introduces the hot methods on line generalization in map generalization,...
This paper presents an integration method for co- registration between up-to-date aerial imagery and geospatial database with emphasis on road network data, which is called image-to-GISco-registration. The up-to-date aerial imagery and their extracted features are thought as reference data, and the early GIS data are co-registered onto aerial images after orthorectified in order to integrated two...
In this paper, a relational matching approach for imagery-to-GIS data is presented. This method applies image aspect interpretation and geospatial data mining techniques to realize their integration. Three-dimensional (3D) primitives, standing for house, are chosen, and their projections are represented by the aspects. The hierarchy aspect graphs are constructed to represent their connected relations...
Orbital and suborbital-based remote sensing systems have been a stalwart for Earth observation sciences. In recent years, there is an increasing interest for civilian applications of low-cost aerial unmanned aerial vehicle (UAV). This paper presented design and implementation of a low-cost small civilian UAV system, including its field flight validation, system calibration, and mapping accuracy evaluation...
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