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For image-based mapping we need clip, stitching and projection transformation to the images of GE and get accurate registration with other types of geographic information. This paper analysed the layered organizing method of GE images. Through processing the GE images and getting pixel value the transformation of Mercator projection and Gauss projection and the resample method of image pixel are studyed...
There still exist many problems in integrating and efficiently updating geospatial data at the present time. In accordance with this, this paper introduces a concept of data fusion for updating geospatial data actively, and the purpose is to improve the quality and updating efficiency of geospatial data. We lay emphasis on the concept, connotation, theoretical bases and key technologies of multi-source...
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