Augmented Reality graffiti project by Andy Biar and Andrew Bueno can place Kinect 3D video captures to locations or signs - video embedded below:
Peek is an application for mobile devices which allows you to view virtual performers in physical space using augmented reality. Developed by Andy Biar and Andrew Bueno, Peek forces users to reconsider the idea that familiar spaces are immutable, and encourages them to engage with their surroundings.
Biar and Bueno developed scripts to import 3D models from the RGBD Toolkit (for Kinect-based 3D video capture) into the Unity3D game engine.
More info can be found here