Exploiting the “Doddington Zoo” Effect in Biometric Fusion

Arun Ross, Ajita Rattani and Massimo Tistarelli

arun.ross@mail.wvu.edu, ajita.rattani@diee.unica.it, tista@uniss.it

IEEE International Conference on Biometrics: Theory, Applications and Systems (BTAS) 2009

The “Doddington Zoo”

Sheep(well behaved)

Lambs\ Wolves (high FAR)

Average Genuine ScoreExploiting only complimentary information in multi-biometric fusion may result in increased throughput at minimal cost

“Selective Fusion”

User- Specific Fusion (Iris)

FRatio Doddington Zoo

Cont…. (Finger)FRatio Doddington Zoo

Dataset Left Unit Only (%)

Right Unit Only (%)

Fusion (%)

EER (%)(User specific fusion)

(Multimodality)

Fingerprint (WVU)

40.16 40.16 19.66 1.561.3

Iris (CASIA)

33.60 33.60 32.78 0.40.3

Right Unit Left Unit CASIA (%) WVU (%)

Goats Goats 14.75 20.50

Lambs Lambs 1.64 1.25

Sheep Sheep 50 46.02

Goat Lamb 3.27 0

Goat Sheep 12.29 9.62

Sheep Lambs 1.63 7.11

Sheep Goat 13.93 7.94

Lamb Goat 1.64 1.67

Lamb Sheep 0.82 5.85

EER User Specific Selection: EER Multi biometric System

2%1.3 %

1.1 %0.3 %

User Specific Selection of Modalities