Lionel Daniel

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In this paper, a demonstrator called BIOFACE incorporating several facial biometric techniques is described. It includes the well established Eigenfaces and the recently published Tomofaces techniques, which perform face recognition based on facial appearance and dynamics, respectively. Both techniques are based on the space dimensionality reduction and the(More)
Over the past decades, 3D face has emerged as a solution to face recognition due to its reputed invariance to lighting conditions and pose. While proposed approaches have proven their efficiency over renowned databases as FRGC, less effort was spent on studying the robustness of algorithms to quality degradations. In this paper, we present a study of the(More)
Information fusion in biometrics mostly relates to multi-biometric systems which attempt to improve the performance of individual matchers: multi-sensor, multi-algorithm, multimodal, etc. However, in addition to these scenarios, the need for methods to fuse the individual regional classifiers has also emerged, due to the increasing number of region-based(More)
  • Lionel Daniel
  • 2008 20th IEEE International Conference on Tools…
  • 2008
We theoretically address the problem of reasoning common sensically in uncertain and inconsistent linear knowledge bases.Those bases linearly combine degrees of belief about sentences of a propositional logic, where degrees of belief are assumed to be probabilities. A knowledge base is inconsistent iff no probability function satisfies it. We propose a new(More)
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