dbm.open(Db)
dbm.open(Index)
compute Ci perms and shifts
for i in 1..Ncurves
{
     p = Ci(vq)
     up = dbm.lookup(Index , (i,p))
     dn = dbm.lookup(Index , (i,p))
     img = dbm.fetch(up)
     insert img in results
     while within Range for up and dn
     {
          dbm.next(up); img = dbm.fetch(up)
	  check insert img in results
	  dbm.prev(dn); img = dbm.fetch(dn)
	  check insert img in results
     }
}
for i in 1..k
     display (dist,imageId) for resultsi