Rešerš QR code reader :

1.  pc aplikácia bežiaca na web kamere (0.3MP) : http://www.quickmark.com.tw/en/basic/downloadPC.asp
2. Reading QR Codes in Processing :
   •  http://wiki.dxarts.washington.edu/groups/general/wiki/42797/Reading_QR_Codes_in_Processing.html
   • http://answers.oreilly.com/topic/1337-how-to-do-augmented-reality-in-processing/
   • http://code.google.com/p/zxing/
   • Processing QRCode Library http://www.shiffman.net/p5/pqrcode/
3. Readig QR code by Rapsberry Pi :
   1. http://www.raspberrypi.org/phpBB3//viewtopic.php?f=41&t=16025
   2. python qr tools https://launchpad.net/qr-tools/python-qrtools
   3. http://raspi.sk/products-page/