{HEAD ~ This stereoscopic “target camera}” is mounted on {TAIL ~ a target vehicle}, i.e., the vehicle that will navigate without colliding with obstacles 
is mounted on
{ HEAD ~ This stereoscopic “ target camera } ” is mounted on { TAIL ~ a target vehicle } , i.e. , the vehicle that will navigate without colliding with obstacles
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH