搜索结果: 136-150 共查到“知识库 地理信息系统”相关记录2350条 . 查询时间(1.648 秒)
Hybrid spatial analysis operations as a foundation for integrated GIS
Hybrid Analysis Spatial Analysis Integrated GIS
2016/5/20
In many applications, especially when remote sensing data are needed, both vector and raster data have to be processed in a GIS. Usually this takes place through different conversion methods after the...
Integration of vector data and satellite imagery for geocoding
Automatic Image Registration Polygon Matching Feature Extraction Data Integration
2016/5/20
The geocoding of aerial and satellite imagery is traditionally a tedious manual task. Therefore numerous initiatives for automating the geocoding procedure have been started. Among them, the EU projec...
The aim of this paper is to implement a system design and its application for the solutions of the problems in the lot production activities with geographic information systems. To do so, activities o...
Data uncertainty in a hybrid GIS
Data Uncertainty Data Quality Hybrid GIS Raster-Vector-Conversion Polygon Overlay
2016/5/20
The paper presents a new approach for integrating data uncertainty into a hybrid GIS environment. Such a hybrid system can process raster data as well as vector data in an integrated manner taking unc...
Integration of image analysis and GIS for 3D city modeling
Integration image analysis GIS 3D city modeling
2016/5/20
Integration of image analysis and GIS for 3D city modeling.
Describing topological relations with Voronoi-based 9-intersection model
Describing topological relations Voronoi-based 9-intersection model
2016/5/20
The Voronoi-based 9-intersection model (V9I) is a modified version of the original point-set-based 9-intersection model.The modification is made by replacing the complement (exterior) of an entity wit...
Revision of built-up areas in a GIS using satellite imagery and GIS data
GIS Update Small-Scale Image Analysis Texture Linear Feature Point Detection
2016/5/20
In general, built-up areas or populated places are significantly changing within the revision interval of a GIS (Geographic Information System) or map. In this paper we present a method by means of wh...
Delineation of eco watersheds by integration of Remote Sensing and GIS techniques for management of water and land resources
Eco watersheds PC analysis Water Resources Hierarchical Clustering
2016/5/20
Present study describes the concept of eco-watersheds. Eco watershed is described as the homogenous watershed which have similar characteristics for natural resources development and management practi...
A context sensitive model for sharing distributed geospatial information
context sensitive model sharing distributed geospatial information
2016/5/20
Research on Interoperability of geospatial information systems is becoming widespread in GI research community. We have identified three types of heterogeneity: semantic, schematic, and semantic. We a...
Recent advances ofdata integration, spatial analysis and modelling for sustainable development
spatial analysis modelling
2016/5/20
Remote sensing is entering the third generation when high technologies such as high resolution
satellite data with one meter ground ~esolution, SAR (synthetic aperture radar) interferometry,
integra...
RESEARCH ON DATA PROCESSING OF DEFORMATION MONITORING FOR SIDE SLOPE BY NEW DEVELOPED SPECIAL GPS SOFTWARE
Data processing Deformation monitoring Side slope GPS Quasi-stable adjustment Classical adjustment
2016/3/17
The deformation monitoring network with GPS is often separated, and it appears short-baseline and high-drop between monitoring sites. In theory, the base stations must be set up in the stableplace. Bu...
IMPROVE ON DIJKSTRA SHORTEST PATH ALGORITHM FOR HUGE DATA
GIS Network Network analysis Shortest path analysis Dijkstra
2016/3/17
This paper introduces the classical Dijkstra algorithm in detail, and illustrates the method of implementation of the algorithm and the disadvantages of the algorithm: the network nodes requiresquare-...
THE DESIGN OF IMAGE TOPOGRAPHIC MAPS AND HILL-SHADING TOPOGRAPHIC MAPS IN THE WESTERN MAPPING PROJECT
GIS product Image topographic Map Hill-shading topographic map Cartography the technological process
2016/3/17
In order to provide users with more diverse varieties of new GIS products that contain richer content, it is proposed that Image topographic maps and hill-shading topographic maps should beproduced as...
COMPARISON BETWEEN SEVERAL SOFTWARES WITH THE FUNCTION OF GENERATING RELIEF SHADING
Relief Shading Digital Elevation Model (DEM) SRTM Color Style Light Source Azimuth Solar Altitude
2016/3/17
Relief shading maps have become a popular and useful means for representing topography in a natural, aesthetic, and intuitive way.In this paper, a comparison among the applications in producingrelief ...
GIS-BASED FUZZY COMPREHENSIVE EVALUATION OF FOREST FIRE-POTENTIAL ZONE-GRADING
Forest Fire-danger Division Scale Fuzzy Comprehensive Evaluation Subordinate Function Expert Evaluation Methodlogy GIS Visual Basic
2016/3/17
Forest fire-potential is natural disaster that breaks out strongly , destructs largely and is difficult to dispose and rescue, its destructive power has a serious threat to the security ofsociety and ...