Download PDF by Ajita Rattani, Fabio Roli, Eric Granger: Adaptive Biometric Systems: Recent Advances and Challenges

By Ajita Rattani, Fabio Roli, Eric Granger

ISBN-10: 3319248634

ISBN-13: 9783319248639

ISBN-10: 3319248650

ISBN-13: 9783319248653

This interdisciplinary quantity provides a close review of the most recent advances and demanding situations closing within the box of adaptive biometric platforms. A wide variety of innovations are supplied from a global number of pre-eminent experts, amassed jointly lower than a unified taxonomy and designed to be appropriate to any trend acceptance procedure. positive aspects: offers a radical advent to the concept that of adaptive biometric platforms; stories platforms for adaptive face attractiveness that practice self-updating of facial versions utilizing operational (unlabeled) information; describes a unique semi-supervised education process often called fusion-based co-training; examines the characterization and popularity of human gestures in video clips; discusses a variety of studying recommendations that may be utilized to construct an adaptive biometric procedure; investigates techniques for dealing with temporal variance in facial biometrics because of getting older; proposes a score-level fusion scheme for an adaptive multimodal biometric system.

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Extra info for Adaptive Biometric Systems: Recent Advances and Challenges

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While this enables to automatically benefit from a considerable source of new information without requiring a costly manual updating process, these systems are particularity sensitive to their internal parameters. A trade-off between assimilation of new information and protection against the corruption of facial models with impostor templates has to be considered, as well as a limitation of system complexity over time. While template management techniques can be used to limit system complexity, they remain costly and may interfere with seamless operations.

Using a less stringent constraint of fpr = 1 % for the updating threshold does not always have an impact on the performance boost, but always increases system complexity as well as the number of impostor templates in the galleries. While these observations remain valid for each scenario, a more precise analysis reveals potential limitations of these approaches depending on the represented application. In a semi-controlled FR application with limited changes mainly caused by illumination and expression (DIEE dataset), benefits of a self-updating techniques are quite clear.

6, and for each individual i = 1, . . , N, the performance of the baseline and the two self-updating systems updated with batch bi [t − 1] is evaluated on batch bi [t]. The self-updating systems are updated, and then tested with batch bi [t + 1], and so on. A pseudocode of the simulation process is presented in Alg. 2. Algorithm 2 Protocol for simulations. 1: for i = 1, . . , N do // Initialization of the galleries Gi for each individual 2: Gi ← first 2 patterns of bi [1] 3: end for 4: for i = 1, .

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Adaptive Biometric Systems: Recent Advances and Challenges by Ajita Rattani, Fabio Roli, Eric Granger

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