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Bokode - micro barcodes using your camera to scan

Project Overview ‹ Bokode: Imperceptible Visual Tags for Camera-Based Interaction from a Distance – MIT Media Lab
With over a billion people carrying camera-phones worldwide, we have a new opportunity to upgrade the classic bar code to encourage a flexible interface betwee…

OK. I'm definitely struggling with the science - but the concept - tiny little micro tags which are machine readable by *any* regular camera - that is totally cool

The Camera Culture group presents Bokodes, tiny imperceptible
barcodes that can be read by a standard camera positioned up to four
meters away to decode identity, and six-degree-of-freedom pose (angle
and distance).