The invention comprises an asynchronous interface that collects {HEAD ~ pixel data} from {TAIL ~ multiple video data sources} 
from
The invention comprises an asynchronous interface that collects { HEAD ~ pixel data } from { TAIL ~ multiple video data sources }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL