Different 3D models depending on the qr code (Android)

Question

I want to do an application on Android that reads a QR Code and depending on a string coded in it, does some calculations and renders a 3D arrow on top of the QR, and then to another QR Code and so on. I've read about many libraries (OpenCV, ARToolkit, NyARToolkit, AndAR...).

Something like this, but with other models obviously.

I don't know where to start or any example I can use as help. Can anyone help me out finding the way forward?

Thanks.

P.D: Sorry about my english...

Answer 1

[AR on QR][1] displays 3D models above the QR Code and the model is selected based on the QR Code content.

Documentation & source code: http://www.cs.technion.ac.il/~cggc/Graphics-Geometric-Computing/Projects/pastProjects2013.html