Publications de Norman Hoon Thian Poh

The Multiscenario Multienvironment BioSecure Multimodal Database (BMDB)

Jean Hennebert, Jonas Richiardi, Andrzej Drygajlo, Norman Hoon Thian Poh

A new multimodal biometric database designed and acquired within the framework of the European BioSecure Network of Excellence is presented. It is comprised of more than 600 individuals acquired simultaneously in three scenarios: 1) over the Internet, 2) i ...

2010

Performance Generalization in Biometric Authentication Using Joint User-Specific and Sample Bootstraps

Samy Bengio, Norman Hoon Thian Poh

Biometric authentication performance is often depicted by a DET curve. We show that this curve is dependent on the choice of samples available, the demographic composition and the number of users specific to a database. We propose a two-step bootstrap proc ...

2007

Multi-system biometric authentication : optimal fusion and user-specific information

Norman Hoon Thian Poh

Verifying a person's identity claim by combining multiple biometric systems (fusion) is a promising solution to identity theft and automatic access control. This thesis contributes to the state-of-the-art of multimodal biometric fusion by improving the und ...

EPFL2007

Using Chimeric Users to Construct Fusion Classifiers in Biometric Authentication Tasks: An Investigation

Samy Bengio, Norman Hoon Thian Poh

Chimeric users have recently been proposed in the field of biometric person authentication as a way to overcome the problem of lack of real multimodal biometric databases as well as an important privacy issue -- the fact that too many biometric modalities ...

IEEE2006

How Do Correlation and Variance of Base-Experts Affect Fusion in Biometric Authentication Tasks?

Samy Bengio, Norman Hoon Thian Poh

Combining multiple information sources such as subbands, streams (with different features) and multi modal data has shown to be a very promising trend, both in experiments and to some extend in real-life biometric authentication applications. Despite consi ...

2005

Database, Protocol and Tools for Evaluating Score-Level Fusion Algorithms in Biometric Authentication

Samy Bengio, Norman Hoon Thian Poh

Fusing the scores of several biometric systems is a very promising approach to improve the overall system's accuracy. Despite many works in the literature, it is surprising that there is no coordinated effort in making a benchmark database available. It sh ...

2006