Contribution to the Fusion of Biometric Modalities by the Choquet Integral
Anouar Ben Khalifa, Najoua Essoukri BenAmara · International Journal of Image Graphics and Signal Processing · 2012
In multimodal biometrics, modalities can be robust against the authentication of certain people and weak for others.The conventional fusion techniques such as the Product, Mean, AND, OR and the Majority Voting do not take into account this kind of behaviour.In this paper, we propose a new approach to fusion procedures in the context of biometric authentication.The proposed method is based on the exploration of the Choquet integral that takes into account the interactions between the terms and people through fuzzy measures.The fuzzy measures, the ones we have proposed, are based on the number of confusion, the entropy and the uncertainty function.The results have been validated in two databases: the first one is virtual, which is based on synthetic scores and the second one on the biometric modalities which are: face, off-line handwriting and offline signature.The achieved results demonstrate the robustness of our approaches and their adaptability.