Corresponding segments are shown for {HEAD ~ the case} of four bit planes and {TAIL ~ four bitrate groups}  
of
Corresponding segments are shown for { HEAD ~ the case } of four bit planes and { TAIL ~ four bitrate groups }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH