i have image markers in fixed positions on a large structure.
i would like to track the whole structure even if i loose the trackers (like extended tracking / SLAM)
how can i :
1) activate the SLAM when an image target is found.
2) keep the SLAM activated until a new target is found (and maybe re-calibrate the main structure object)?
is there an existing example? i just found a few references but with bad english descriptions!