Video images from each camera are then synchronously sampled, captured, and stored in {TAIL ~ a memory} associated with {HEAD ~ a general purpose processor} 
Video images from each camera are then synchronously sampled , captured , and stored in { TAIL ~ a memory } associated with { HEAD ~ a general purpose processor }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD