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Some activities on Biometrics at ENST/CNRS-LTCI G. CHOLLET, R. CROCE, G. GRAVIER, J. KHARROUBI, D. PETROVSKA-DELACRETAZ, M. SIGELLE

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Presentation on theme: "Some activities on Biometrics at ENST/CNRS-LTCI G. CHOLLET, R. CROCE, G. GRAVIER, J. KHARROUBI, D. PETROVSKA-DELACRETAZ, M. SIGELLE"— Presentation transcript:

1 Some activities on Biometrics at ENST/CNRS-LTCI G. CHOLLET, R. CROCE, G. GRAVIER, J. KHARROUBI, D. PETROVSKA-DELACRETAZ, M. SIGELLE ENST/CNRS-LTCI 46 rue Barrault PARIS cedex 13

2 Outline What is ENST/CNRS-LTCI ? Research and application topics related to COST-275: Speaker verification: The CAVE-PICASSO projects (text dependent) The ELISA consortium, NIST evaluations (text independent) The EUREKA !2340 MAJORDOME project Multimodal Identity Verification: The M2VTS and BIOMET projects Perspectives

3 ENST: Ecole Nationale Supérieure des Télécommunications CNRS: Centre National de la Recherche Scientifique LTCI: Laboratoire de Traitement et Communication de lInformation Our affiliations

4 What is ENST? Ecole Nationale de Télécommunications classed among the Grandes Ecoles d'Ingénieurs. 250 state certified engineers each year. part of Groupement des Ecoles de Télécommunications

5 Speaker Verification Typology of approaches (EAGLES Handbook) Text dependent Public password Private password Customized password Text prompted Text independent Incremental enrolment Evaluation

6 CAVE – PICASSO

7 Speaker Verification (text independent) The ELISA consortium ENST, LIA, IRISA,... NIST evaluations

8 Support Vector Machines and Speaker Verification Hybrid GMM-SVM system is proposed SVM scoring model trained on development data to classify true-target speakers access and impostors access, using new feature representation based on GMMs Modeling Scoring GMM SVM

9 SVM principles X (X) Input space Feature space Separating hyperplans H, with the optimal hyperplan H o HoHo H Class(X)

10 Results

11 «MAJORDOME» Unified Messaging System Eureka Projet no 2340 EDF Holistique D. Bahu-Leyser, G. Chollet, R. Croce, K. Hallouli, J. Kharroubi, D. Kofman, L. Likforman, E. Matta-Sanchez, D. Petrovska, M. Sigelle, P. Vaillant, F. Yvon KTHEuroseekUPCAirtel Software602

12 Majordomes Functionalities Speaker verification Dialogue Routing Updating the agenda Automatic summary Voice Fax

13 Voice technology in Majordome Server side background tasks: continuous speech recognition applied to voice messages upon reception Detection of senders name and subject User interaction: Speaker identification and verification Speech recognition (receiving user commands through voice interaction) Text-to-speech synthesis (reading text summaries, s or faxes)

14 Multimodal Identity Verification M2VTS (face and speech) front view and profile pseudo-3D with coherent light BIOMET: (face, speech, fingerprint, signature, hand shape) data collection reuse of the M2VTS and DAVID data bases experiments on the fusion of modalities

15 BIOMET Bla-bla SECURED SPACE PIN

16 BIOMET An extension of the M2VTS and DAVID projects to include such modalities as signature, finger print, hand shape. Initial support (one year) is provided by GET (Groupement des Ecoles de Télécommunications) Looking for partners to initiate a european project (COST-275 could be a step in this direction) Emphasis will be on fusion of scores obtained from two or more modalities.

17 Perspectives within COST-275 An extension of the BIOMET project. Sampling and distribution of the DAVID database in digital form. An opportunity for COST-275 partners to join the ELISA consortium.


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