I am involved in a project using aerial photographs, earlier we have been using dias and an 'old fashioned' stereoscope for interpretations. Now we are to get the pictures as files. What kind of hard- and software do we need to view stereoscopic images on screen? Is this possible within grass / ossim or otherwhere in the free software family? Do we need to get some special hardware, or is is possible to calculate the heightinformation from a couple of georeferenced images and then use eg nviz? Does anyone here have any experience on that kind of work?
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