Can anyone point me towards a way of doing this, or a name for what the technique would be called?
If 3 cams can see the same object, presumably there is a way to work out the 3d position, once calibrated.
I’m sure this is a job for open cv, but I’m having trouble finding anything. I think this example is a lot more simple than many of the other open cv tracking aproaches
2 cameras should be enough to allow you to get the 3d position
Like the Wikipedia page says: in theory it’s trivial but in practise it might be a bit more involved to get a good result.
Depending on the size/view of the blob from the different cameras I’d guess the calculated position will easily be a bit noisy.