Then {HEAD ~ regions} of interest depicted in the image are determined using {TAIL ~ a detection scheme} adapted for the assigned image group 
are determined using
Then { HEAD ~ regions } of interest depicted in the image are determined using { TAIL ~ a detection scheme } adapted for the assigned image group
OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH