The Full Wiki

More info on Bokode

Bokode: Wikis


Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.


From Wikipedia, the free encyclopedia

Bokode encodes information in the bokeh of an image
A Bokode tag taken in and out-of-focus.

A bokode is a type of data tag which holds thousands of times more information than a barcode. They have been developed by a team at the MIT Media Lab.[1] The bokode pattern is a tiled series of Data Matrix codes. The name is a portmanteau of the words bokeh (a photographic term) and barcode. They are much smaller than a barcode, and are circular in shape with a diameter of 3mm. A bokode consists of an LED, covered with a mask and a lens. They are readable from different angles and from 4 meters (13 feet) away by a SLR camera. Currently they are expensive to produce as the LED requires power, but there are prototypes which rely just on reflected light. There is a privacy advantage compared to Radio-frequency identification tags: bokodes can be covered up, whereas active as well as passive RFID tags can be read at a distance with equipment that can receive radio signals.[2]


  1. ^ Barcode replacement shown off, BBC News, 27 July 2009.
  2. ^ 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.

External links



Got something to say? Make a comment.
Your name
Your email address