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barcode-scavenger
   » » Wiki: Bokode
Tag Wiki 'Bokode'.
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A bokode is a type of data tag which holds much more information than a over the same area. They were developed by a team led by at the MIT Media Lab. Barcode replacement shown off, , 27 July 2009. The bokode pattern is a tiled series of codes. The name is a of the words —a photographic term—and barcode. Rewritable bokodes are called bocodes. They are circular with a diameter of . A bokode consists of an covered with a and a lens. They are readable from different angles and from away by any standard digital camera. Powered bokodes are relatively expensive because of the LED and the power it requires. However, prototypes have been developed which function passively with reflected light like a typical barcode.

Bokodes convey a privacy advantage compared to radio-frequency identification (RFID) tags: bokodes can be covered up with anything opaque, whereas RFID tags must be masked by material opaque to radio frequencies, such as the sleeve provided by the New York State Department of Motor Vehicles when issuing their enhanced state IDs.Ankit Mohan, Grace Woo, Shinsaku Hiura, Quinn Smithwick, Ramesh Raskar: Bokode: Imperceptible Visual Tags for Camera Based Interaction from a Distance , Camera Culture Group, MIT Media Lab.


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