Rephotography means the act of taking a photo of a scene that has already been photographed some time ago. It is a challenge for the photographer to approximate the original location and camera pose as good as possible. The resulting picture pair is called Before And After picture. Suited are both buildings and people:
This website helps to produce und to publish Before And After pictures. Visitors can browse the database according to different search criteria and view a picture pair with an animated transition. Registered users can upload their photos, supply location and time information and adjust both pictures through a pixel transformation. Comments and ratings are also possible. It is taken for granted, that the user has the right to publish his photos for free. This website emerged from a research project at the University of Osnabrück (Germany), initiated by Oliver Vornberger and with contributions from Ann-Katrin Becker, Rasmus Diederichsen and Sören Weber.