3D glasses rotation tracking?

Question

3D

Hello world,
I have a 3D TV and I want to generate an image (a 3D cube for starters) depending on the viewing angle and distance. But how to recognize these parameters? the first thing that comes to mind is to stick an augmented reality marker to the 3D glasses, but what is the best recognition method? video stream from a laptop web-camera (you can even from two). Thanks in advance))