Apparently Augmented Shadow stems from Moon's MFA thesis in Design & Technology for Parsons. He writes:
In this installation, the shadows exist both in a real and a virtual environment simultaneously. It thus brings augmented reality to the tabletop by way of a tangible interface. The shadow is an interface metaphor connecting the virtual world and users. Second, the unexpected user experience results from manipulating the users’ visual perceptions, expectations, and imagination to inspire re-perception and new understanding. Therefore, users can play with the shadows lying on the boundary between the real, virtual, and fantasy.
More details on the project's home page.