I want to use bar codes to help a robot navigate a home. I was looking at QR codes and a few other kinds, but I don't know enough about bar code recognition to know up front the variant that will give me the highest success rate when viewed at different angles and perhaps even while the robot is in motion. Does anyone know which bar code type excels in applications like this one? I most likely will be using OpenCV in conjunction with one of the open source bar code libraries to do my work. My users will print the bar codes on their printer an mount them on a stiff surface to create navigation placards placed at strategic locations around the house.