Fiducial Markers

Overview

An overview article:

• Mark Fiala: Designing highly reliable fiducial markers. Pattern Analysis and Machine Intelligence, IEEE Transactions on 32 (7), 1317...

Interesting just for me:

• How to make a presentation with Augmented Reality using Processing
• Designing For Interactivity

Markers overviwew

• QR-code (Quick Response Code) (wikipedia.org)
• ARTag (Augmented Reality Tag) (wikipedia.org)
• Fiducial Marker (wikipedia.org)

Software

ARtag

• ARtag basic overview
• ARtag slides
• ARToolKit

reacTIVision

• reacTIVision project page (sourceforge.net)
• fidgen -- fiducial markers generator (code.google.com)

Experiments

ReacTIVision

USB Camera 352 x 288 / 15fps used. reacTIVision for windows binary 1.4.

Basic recognition works quite well

Also partially hidden image is recognized

But sometimes even larger one is not

Smalest image recognized properly

In larger distance, image is too small to identify

QR code

Even the simpe QR code containg less than 10 ASCI letters is not recognized:

Could not find any barcode in the uploaded image.