A simple vision based system to perform a contactless coupling, rather
than a hardware hooking is suggested. The method facilitates automati
c convoy formation and management. The vision technique uses 3 landmar
ks and a CCD camera. Using a geometric approach that capitalizes the e
xcellent angular resolution of CCD cameras, the position and orientati
on of the camera are estimated in respect to the landmarks. Experiment
al results show the reliability of the technique in operating contexts
.