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International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B4. Istanbul 2004 
5. CONCLUSIONS AND DISCUSSION 
From the above description, the multi-temporal remote sensing 
and 3D reconstruction model of real terrain surface segment 
facets conform a 4.5D spatio-temporal model, which will be 
supported by GIS essential data, and has the basic 
reconstruction factors, relations, conceptions, and accuracy 
estimation criterion. For example, the LUDMD should be 
treated as a space and time modelling process. So, it is feasible 
for the method to reconstruct the spatio-temporal model from 
high-resolution airborne SAR imagery, with the advantages of 
high time and space resolution. 
There still are some aspects worth to discuss, like the problem 
of the potential for the reconstruction spatio-temporal model 
prediction. For the future states or the one of some special time 
point, the objects changes of space location and attributes in the 
reconstruction spatio-temporal model maybe obtained by 
interpolation the projection values on the axes. But, the 
practical operator method should be discussed in detail. In 
addition, the saving and opening the objects and their space and 
time information with corresponding attributes are the problems 
to be researched more. 
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