This invention relates to {HEAD ~ the restoration} of image signals from {TAIL ~ a photosensitive scanning array} to provide an absolute output signal level 
from
This invention relates to { HEAD ~ the restoration } of image signals from { TAIL ~ a photosensitive scanning array } to provide an absolute output signal level
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH