June 15th, 2004 BioSecure1 BioSecure : Future of Biometrics and Evaluations Gérard CHOLLET CNRS-LTCI, GET-ENST European Biometric Forum European Biometric Forum

June 15th, 2004BioSecure2 Outline State of affairs (history, tasks, security, forensic,…) State of affairs (history, tasks, security, forensic,…) Modalities (biological, behavioral, hybrid) Modalities (biological, behavioral, hybrid) Fusion (features, scores, decisions) Fusion (features, scores, decisions) Imposture (occasional, dedicated) Imposture (occasional, dedicated) Evaluations (algorithms, field tests, ergonomy,…) Evaluations (algorithms, field tests, ergonomy,…) Conclusions Conclusions Perspectives Perspectives

June 15th, 2004BioSecure3 History

June 15th, 2004BioSecure4 Recognition tasks Identification (open or closed set) Identification (open or closed set) Verification Verification Indexing Indexing Tracking Tracking Typology (ethny) Typology (ethny)

June 15th, 2004BioSecure5 Biometric Identity Verification Physical (face, finger, hand, eye, ear,…) Physical (face, finger, hand, eye, ear,…) Behavioral (speech, signature, gait,…) Behavioral (speech, signature, gait,…) Decision cost (FA, FR, priors, costs,…) Decision cost (FA, FR, priors, costs,…) Receiver Operating Characteristic Curve Receiver Operating Characteristic Curve Reference systems (open software) Reference systems (open software) Evaluations (algorithms, field trials, ergonomy,…) Evaluations (algorithms, field trials, ergonomy,…)

June 15th, 2004BioSecure6 Biological modalities (liveness tests) Fingerprints (dummy fingers) Fingerprints (dummy fingers) Palmprints (gloves) Palmprints (gloves) Face, body (morphing) Face, body (morphing) Iris (contact lenses) Iris (contact lenses) Retina Retina Ears (morphing) Ears (morphing) ADN (processing time) ADN (processing time) …

June 15th, 2004BioSecure7 Dummy fingers

June 15th, 2004BioSecure8 Morphing, avatars

June 15th, 2004BioSecure9 Behavioral modalities Speech (acoustic, lexical, dialect, accent,…) Speech (acoustic, lexical, dialect, accent,…) Signature (on-line, off-line) Signature (on-line, off-line) Handwriting (on-line, off-line) Handwriting (on-line, off-line) Keystroke Keystroke Gesture (gait, emotions, tic,…) Gesture (gait, emotions, tic,…) …

June 15th, 2004BioSecure10 Motivations Augmenter la robustesse des systèmes dauthentification biométrique Augmenter la robustesse des systèmes dauthentification biométrique Authentification à partir des informations vocales et visuelles : Authentification à partir des informations vocales et visuelles : Meilleurs taux de reconnaissance Meilleurs taux de reconnaissance Technologie biométrique toujours bien acceptée, car non intrusive Technologie biométrique toujours bien acceptée, car non intrusive Rendre limposture plus difficile : Rendre limposture plus difficile : augmentation du coût de limposture augmentation du coût de limposture = nouveaux champs dapplications

June 15th, 2004BioSecure11 Talking Face Recognition (hybrid verification)

June 15th, 2004BioSecure12 Acoutic features Short term spectral analysis Short term spectral analysis

June 15th, 2004BioSecure13 Lip features Tracking lip movements Tracking lip movements

June 15th, 2004BioSecure14 A talking face model Using Hidden Markov Models (HMMs) Using Hidden Markov Models (HMMs) Acoustic parameters Visual parameters

June 15th, 2004BioSecure15 Conclusion Modélisation spatio-temporel des traits extraits des visages parlants Apprentissage dun modèle statistique spécifique aux articulateurs de parole et de la parole dun client Acceptation / Rejet de lidentité proclamée basée sur le test du rapport de vraisemblance