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How to reduce the texture data set need to be transmitted is a key technology for network based 3D GIS application. in this paper, We introduced the concept of land cover distribution map(LCD map) which represents the distribution characteristic of land cover displayed in satellite image and design the algorithm for blending a set of small texture samples under the control of LCD map to produce terrain texture close to satellite image in run time. Contrast to the method which directly mapping satellite image to terrain, our method greatly cut down the amount of data needed to be transmitted, reduce the data transmission delay and therefore provides visual continuity, uniform frame rate. Another merit of our method is that it can generate terrain texture with right resolution for different flight height without extra data needed. A potential advantage of our method need to be research is that it can create texture change with time which is valuable for space-time data simulation. © 2014 Springer-Verlag Berlin Heidelberg.
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