To improve the quality of their rendering capabilities, the researchers plan to integrate their computing system with a social game that will permit competing teams to add images where they are most needed to improve the quality of the visual models. The PhotoCity game is already being played by teams of students at the University of Washington and Cornell, and the researchers plan to open it to the public in an effort to collect three-dimensional renderings in cities like New York and San Francisco. Contestants will be able to use either an iPhone application that uses the phone’s camera, or upload collections of digital images.