Concept

Multi-factor authentication

Related publications (153)

User Authentication via Adapted Statistical Models of Face Images

It has been previously demonstrated that systems based on local features and relatively complex statistical models, namely 1D Hidden Markov Models (HMMs) and pseudo-2D HMMs, are suitable for face recognition. Recently, a simpler statistical model, namely t ...

IDIAP2004

An Investigation of F-ratio Client-Dependent Normalisation on Biometric Authentication Tasks

Samy Bengio, Norman Hoon Thian Poh

This study investigates a new \emph{client-dependent normalisation} to improve biometric authentication systems. There exists many client-de-pendent score normalisation techniques applied to speaker authentication, such as Z-Norm, D-Norm and T-Norm. Such n ...

IDIAP2004

Reactive security for multimedia systems

Antonio Romeo

Books, videos, music, still images and any other type of media information, share a number of features that enable their migration from traditional delivery technologies to an all-electronic delivery model. They can easily be digitized, stored, compressed ...

EPFL2004

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 ...

IDIAP2004

Towards Predicting Optimal Subsets of Base-Experts in Biometric Authentication Task

Samy Bengio, Norman Hoon Thian Poh

Combining multiple information sources such as 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. However, combining too ...

IDIAP2004

Towards Predicting Optimal Subsets of Base-Experts in Biometric Authentication Task

Samy Bengio, Norman Hoon Thian Poh

2004

Improving Fusion with Margin-Derived Confidence In Biometric Authentication Tasks

Samy Bengio, Norman Hoon Thian Poh

This study investigates a new confidence criterion to improve fusion via a linear combination of scores of several biometric authentication systems. This confidence is based on the margin of making a decision, which answers the question, ``after observing ...

IDIAP2004

JPSEC for Secure Imaging in JPEG 2000

Touradj Ebrahimi

In this paper, we first review the on-going JPSEC standardization activity. Its goal is to extend the baseline JPEG 2000 specification to provide a standardized framework for secure imaging, in order to support tools needed to secure digital images, such a ...

SPIE2004

An authentication scheme based on roots of sparse polynomials

Mohammad Amin Shokrollahi

We describe an authentication scheme whose security is based on the hardness of finding roots of systems of sparse polynomial equations in many variables and of high degree. One of the new ideas is the use of many keys. In one authentication session, a sma ...

2003

Why Do Multi-Stream, Multi-Band and Multi-Modal Approaches Work on Biometric User Authentication Tasks?

Samy Bengio, Norman Hoon Thian Poh

Multi-band, multi-stream and multi-modal approaches have proven to be very successful both in experiments and in real-life applications, among which speech recognition and biometric authentication are of particular interest here. However, there is a lack o ...

IDIAP2003

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