Photosynth is an amazing new technology from Microsoft Live Labs that will change forever the way you think about digital photos. It takes a large collection of photos of a place or an object, analyzes them for similarities, and displays them in a reconstructed three-dimensional space.

It can take any mix of photo’s, even with people blocking the object in the photo or a blurry cell phone picture. Now your brain knows that your eyes are about two inches apart. But when Photosynth does its magic, it doesn’t know where the cameras were, or which way they were pointing. Fortunately, when there are many cameras, and many features in common, the algorithms behind Photosynth can figure out not only where the features are in 3D, but where all of the cameras would have to have been, and which way they were aimed, consistent with the features they ”saw”.

That is really web3.0, taking all user submitted pictures from Flickr and stitching them together into one big world. Watch the video below, it is truely amazing. And take a look at the live demo at live labs.