{TAIL ~ The subject image tracking}, performed by mapping D into E is represented by the relationship: ##EQU2## where Mult is {HEAD ~ a multiplicative constant}, and Bias is an additive constant 
{ TAIL ~ The subject image tracking } , performed by mapping D into E is represented by the relationship : # # EQU2 # # where Mult is { HEAD ~ a multiplicative constant } , and Bias is an additive constant
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH