In another configuration of the invention, {HEAD ~ the number} of repetitions is defined by {TAIL ~ a constant} for determining the segmentation threshold value 
is defined by
In another configuration of the invention , { HEAD ~ the number } of repetitions is defined by { TAIL ~ a constant } for determining the segmentation threshold value
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH