Developed at the MIT Media Lab, Graffiti Codes allow people to encode information into a physical space.

Developed by Jeremy Rubin and Andrew Lippman from the Viral Spaces group at the MIT Media Lab, ‘Graffiti Codes‘ enables users to encode small pieces of information into a physical space, similar to a QR code.

It uses accelerometer-based paths to unlock data, which can be drawn onto any surface with tools such as markers. They can then be scanned by tracing over them with a mobile device and the Graffiti Code software converts the image into code that links to a webpage.

Whereas a QR code cannot be easily generated in the field, Graffiti Codes would only require a marker and a surface. They could be used to offer coupons to shoppers on the go or could recognize movement patterns and trigger a message. Lippman told New Scientist:

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