21. The system of claim 20 , wherein said computed parametric statistical conditional distributions comprise: a first match/no-match probability distribution for training match scores corresponding to said first measured biometric characteristic at one or more levels of quality; and a second match/no-match probability distribution for training match scores corresponding to said second measured biometric characteristic at one or more levels of quality.
21. The system of claim 20 , wherein said computed parametric statistical conditional distributions comprise: a first match/no-match probability distribution for training match scores corresponding to said first measured biometric characteristic at one or more levels of quality; and a second match/no-match probability distribution for training match scores corresponding to said second measured biometric characteristic at one or more levels of quality. 22. The system of claim 21 , further comprising: means for fusing said first match/no-match probability distribution and said second match/no-match probability distribution, thereby computing said probability of match and a global quality estimate for said biometric scoring and quality information.