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For non-metric CCD digital camera features and the needs of Rapid field non-metric cameras calibration, the error sources was detailed analyzed and a mathematical calibration model has been founded. B...
Remote sensing change detection technique has been an important method to observe the land use change. At present, there are lots of algorithms of land use change detection, but there isn’tan existing...
Government and local government have to hurry up to build accessible facilities for elderly people and people with disabilities.Because our country is experiencing an aging society, for example, pedes...
When using the traditional orthorectification methods to generate urban large-scale orthophoto, there exist many problems, for example, the spatial objects of orthoimage in urban areas are distorted f...
On the basis of a size single plane array CCD (SPAC-1), we study and establish a digital aerial photogrammetry camera system, which adopts a “3+1”modular design method, i.e., three ×99 kk×22 kk CCD mo...
Data mining models show great efficiency on acquiring knowledge for expert system classification. This study aimed at mining knowledge contained in landscape from multi-scale spatial data using decis...
Desertification is the gradual and sustained reduction in the quantity and quality of the biological productivity of arid and semi-arid land.
CONCEPT AND REALIZATION OF FEDERATED SPATIAL DATABASE.
The article gives a spotlight on a three universities (Moscow State University of Geodesy and Cartography, Siberian State Academy of Geodesy, Wuhan University) and ISPRS’ cooperation in organizing a...
In recent years, using of spatial database for storing and managing spatial data has become a hot topic in the field of GIS. Accordingly National Cartographic Center of Iran (NCC) produces - from ti...
To obtain indoor positioning by using GPS (GNSS) satellite is difficult now. Additionally it is difficult to obtain high accuracy outdoor position when GPS receiver cannot find four or more GPS sate...
Fire-tower is effectively applied in forest fire prevention and commanding system, especially in fire monitor and position. After explaining the significance of scientific planning of fire-tower, this...
The original surveying tools and methods are backward and low efficient and they will also generate lots of errors in the National secondary land surveying. MapSUV rural land surveying palm mapping sy...

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