Photo tourism is a system for browsing large collections of photographs in 3D. Our approach takes as input large collections of images from either personal photo collections or Internet photo sharing sites, and automatically computes each photo's viewpoint and a sparse 3D model of the scene. Our photo explorer interface enables the viewer to interactively move about the 3D space by seamlessly transitioning between photographs, based on user control.Website:http://phototour.cs.washington.edu/Research Team: Noah Snavely - CSE Graphics and Imaging Lab (GRAIL) , University of Washington Steve Seitz - CSE Graphics and Imaging Lab (GRAIL) , University of Washington Richard Szeliski - Interactive Visual Media Group , Microsoft Research Kevin Chiu - CSE Graphics and Imaging Lab (GRAIL) , University of Washington Andy Hou - CSE Graphics and Imaging Lab (GRAIL) , University of Washington