Hi,
I'm currently working on a project detecting ArUco markers using an iPad. I managed to get it working perfectly with the rear facing camera, as that was easier for testing purposes. However, when I came to switch it to the front facing camera (which my project needs), the markers were simply being rejected. The code between the two was totally unchanged, besides switching the cameras. I've tried recalibrating multiple times for the front camera but no change.
The only explanation I could think of as to why the ArUco marker was being added to the rejected list was that I was using the wrong dictionary, but I'm certain that's not the case as the rear facing camera detects it fine.
Cheers