passive-spiderman

https://anil.recoil.org/videos/9ef069e9-0aee-4c51-87c3-e09625711f99image
#spotcodes#ubicomp#mobile

Related

Using Camera-Phones to Enhance Human-Computer InteractionSep 2004
Demo of SpotCode visual tag system at UbiComp 2004 conference in Tokyo.
Ubiquitous Interaction DevicesJan 2003