Bokode, A New Imperceptible “Barcode”

By | September 9, 2009

Researchers at MIT’s Media Lab are working on a new information encoding and decoding technique dubbed Bokode that could displace traditional barcodes and QR codes in some applications.

bokode


The researchers describe Bokode as:

We show a new camera based interaction solution where an ordinary camera can detect small optical tags from a relatively large distance. Current optical tags, such as barcodes, must be read within a short range and the codes occupy valuable physical space on products. We present a new low-cost optical design so that the tags can be shrunk to 3mm visible diameter, and unmodified ordinary cameras several meters away can be set up to decode the identity plus the relative distance and angle. The design exploits the bokeh effect of ordinary cameras lenses, which maps rays exiting from an out of focus scene point into a disk like blur on the camera sensor. This bokeh-code or Bokode is a barcode design with a simple lenslet over the pattern. We show that an off-the-shelf camera can capture Bokode features of 2.5 microns from a distance of over 4 meters. We use intelligent binary coding to estimate the relative distance and angle to the camera, and show potential for applications in augmented reality and motion capture. We analyze the constraints and performance of the optical system, and discuss several plausible application scenarios.

This video shows how it works

Check the details of the technique at Bokode: Imperceptible Visual Tags for Camera Based Interaction from a Distance

Share this post

 

One thought on “Bokode, A New Imperceptible “Barcode”

  1. Lou Berceli

    You are invited to join the largest 2D QR Codes global networking group, on LinkedIn.

    Over 370 members recently joined the 2D Codes for GLOBAL MEDIA group!

    We are a very global group, currently with about 50%, being European members and the balance from the Americas, Asia, Australia and Canada

    2D and QR Codes = the Cross-Media Bridge for all Print Media to Mobile Marketing and e-Commerce and e-Info.

    CLICK the URL LINK to JOIN “2D Codes for GLOBAL MEDIA” group!

    http://www.linkedin.com/groupRegistration?gid=1814763

    If you are not already a LinkedIn member, it’s FREE and takes seconds to sign up by entering the very minimal profile info to join LinkedIn and our 2D Codes for Global Media group.

    Japan has been the global leader with 2D and QR Codes for Cross-Media marketing applications which bridge all types of Print Media to the Mobile e-media marketplace.

    Europe is rapidly advancing the 2D Code media evolution / revolution which many see as a Paradigm shift in Cross-Media marketing and creating consumer behavior changes within our media culture.

    We see the U.S. and Canada learning from the European and Japanese marketplace which will rapidly accelerate this cross-media evolution / revolution.

    2D Code developments are rapidly advancing with most global wireless providers, Cell Phone Manufacturers, Mobile and e-marketing groups, Ad agencies and many Global Brands which are now engaging in 2D Code applications.

    2D Codes for Scanable / Clickable Print Media will become as popular as Texting and Mobile Wireless e-mail has within our consumer cultures.

    Not been exposed to 2D Barcode / cross-media applications yet,…..
    You soon will ……within both your business world and as a consumer of media and a wireless cell phone user.

    Thank you for considering our rapidly growing global group.

    After joining, you can help the media marketplace and a colleague by growing our group and forward this URL LINK TO JOIN.

    Lou Berceli
    Co-founder of 2D Codes for Global Media

Comments are closed.