Biometrics & Security

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Nov 30, 2013 (3 years and 9 months ago)

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Biometrics & Security

Tutorial 11


1 (a) Why multi
-
biometrics? (P13: 3
-
6)



1 (b) What kinds of fusions we can take?


1 (c) Please explain three fusion
modes in P13: 12.

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1 (d) What difference between
biometric uni
-
modal and biometric
multi
-
modal? (P13: 13
-
14)


2. There are four fusion levels defined
in P13: 15. Could you give the
corresponding structure of each
fusion level?



3. Some fusion functions are given in
both matching and decision level (P13:
25; 32
-
34). Please understand their
math definitions.


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F
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Fusion = Score1 + Score2
or


= Score1 x Score2
or


= Max (Score1, Score2)
or


=
……