Was both software and a free hosting service at Photosynth.net. When Microsoft declared the it was closing Photosynth.net and advising people to download their work I did not realize that there would be other ways to view the Photosynth images. There was for a while, so I missed a trick there. However, I think with the closure of Silverlight, Photosynth may be no more. A least in that form. There is another Photosynth, but is is not as capable.
I recall going to a statue on the Strand in London, camera to hand.
This was the place. I took 100s of photos. Around the statue at no more than 15o separation. Repeat at different levels. Repeat at different zooms. Change direction and walk around again, repeating all the previous. So whilst the first set were straight on the next were more oblique, say to the left of straight on, still at no more than 15o separation. Repeat again with the oblique, to the right of straight on. All of these could be feed into Photosynth to produce a walk around 3D image.
This is no longer available in Photosynth.
The copy of the old site below has had all the links and images disabled as Photosynth.net, the host, no longer exists.