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Last Post 23 Apr 2010 09:11 AM by  anon
generating a DEM from sat. imagery
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anon



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23 Apr 2010 09:11 AM
    Hi everyone,   We have a fairly high-resolution image(s) that we want to use to generate a dem from + GPS points around the site area. Is this possible and can anyone steer us in the direction of a possible tutorial?   Thanks,   Ted  

    MariM



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    23 Apr 2010 01:12 PM
    ENVI had a DEM Extraction module add-on that allows you to extract a DEM from a stereopair using RPCs information.  You can use GPS points to add in positional accuracy but the images must have RPCs to be used in ENVI's module.  If your images do not come with RPC information, you may be able to generate them using ENVI's Build RPC tool for appropriate datasets.
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