Tango (Google Phone)
Tango was different from other contemporary 3D-sensing computer vision products, in that it was designed to run on a standalone mobile phone or tablet and was chiefly concerned with determining the device's position and orientation within the environment.
The software worked by integrating three types of functionality:
Area learning: storing environment data in a map that can be re-used later, shared with other Tango devices, and enhanced with metadata such as notes, instructions, or points of interest
Depth perception: detecting distances, sizes, and surfaces in the environment
Project Tango was also the first project to graduate from Google X in 2012 [7