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Bank of Gabor Filters

Ridge Extraction

Voting Algorithm

Estimate Local Orientation

Composition

Enhanced Image

Unrecoverable-Mask

Input Image

Filtered Images

Orientation Field

Coarse-level Map

Ridge Maps

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Decision Fusion

Claimed Identify Verified

Subsystem 1Biometric

BiometricSubsystem N

IdentityClaimed

Template Database

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Subsystem 1

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RetrievalSubsystem 1

Verification

Verification

Database

Decision FusionEstablished Identity

Subsystem N

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$9

Fingerprint Verification

Decision Fusion&

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1000

500

0

500

1000

1500

2000

Decision Fucion

Face Recognition

Hand Geometry Matching

Fingerprint Verification

Speaker Verification

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Orientation

Interpolation

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