{TAIL ~ The projectors} and {HEAD ~ the cameras} may be electronically connected to a computer processor which controls their operation 
{ TAIL ~ The projectors } and { HEAD ~ the cameras } may be electronically connected to a computer processor which controls their operation
TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH