I've been doing a lot of photogrammetry with Autodesk Recap360 and Agisoft Photoscan lately - both commercial packages (although Recap has a free, lower-quality mode - see my tutorial on it here). Gleb Alexandrov explains how to do full image reconstruction using only free/libre software. I've never been able to test VisualSFM as it's such a pain to get it to run on OSX. Any tips? :)
Discover a free photo scanning workflow for VisualSFM, Meshlab and Blender. After watching this tutorial you’ll be ready to generate the jaw-dropping 3D models from photos, for $0. That said, you still need a camera.
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VisualSFM is NOT free (as in speech) software.
Free/libre software for photogrammetry : Darmstadt's MVE, MicMac, OpenMVG/OpenMVS
Do you have experiences with the three tools? Can you compare them? Which one is the best?
I got to compile it under Mac OS X, I could make a tutorial. Though there exist some alternatives to VisualSFM. For example Regard3D.