Comment Re:How it's done (Score 1) 277
The critical algorithm at the core of it all is called "SIFT".
With Bing, they're probably doing it this way. Google on the other hand took a short cut and gathered the geometry directly using time of flight laser scanners. Although with the recent data from the ski slopes it looks like they ditched the laser scanners and are reconstructing the geometry from the images like you suggest.
